CN111223850B - Bidirectional control sensor IC circuit chip - Google Patents
Bidirectional control sensor IC circuit chip Download PDFInfo
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- CN111223850B CN111223850B CN202010302423.4A CN202010302423A CN111223850B CN 111223850 B CN111223850 B CN 111223850B CN 202010302423 A CN202010302423 A CN 202010302423A CN 111223850 B CN111223850 B CN 111223850B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
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Abstract
A bidirectional control sensor IC circuit chip comprises an integrated circuit IC1, a transformer, an integrated circuit IC2 and a bipolar diode, wherein the integrated circuit IC1, the transformer, the integrated circuit IC2 and the bipolar diode are packaged in a module by SOP28L, and the integrated circuit IC2 is used for comparing input high-voltage signals and input low-voltage signals and outputting power frequency alternating current voltage signals to the transformer; the bipolar diode is used for performing bridge rectification on a power frequency alternating current voltage signal output by the integrated circuit IC 2; the transformer is used for carrying out voltage reduction control on the voltage signal after bridge rectification to obtain low-voltage direct-current voltage for driving the integrated circuit IC1 to work, and the low-voltage direct-current voltage is input to the integrated circuit IC1 for power supply; the integrated circuit IC1 is a bidirectional control sensor chip, and is configured to transmit a signal through a signal transmitting end thereof, receive a signal through a signal receiving end thereof, and bidirectionally control the voltage, so as to implement two-way/bidirectional control of a sensing signal. The pin is specially designed, and the power supply, the transformer, the rectifier and the controller are integrated into a system-level chip, so that the thin type multifunctional integrated circuit is thin and multifunctional and has high reliability.
Description
Technical Field
The present invention relates to integrated circuits, and more particularly, to an IC chip for a bidirectional control sensor.
Background
At present, in the transportation fields of motor cars, high-speed rails and the like, a large module circuit is needed to realize accurate control and high reliability of signals. For example, a switch controller, an inductor, a switch component MOSFET, a feedback resistor, an input filter, an output filter, etc. need to be fabricated on the same PCB to accurately control signals. The method has the defects of high investment cost, large power consumption, low reliability and the like, and along with the development of system integration and the requirements on lightness, thinness and high reliability, the improvement is urgently needed.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a bidirectional control sensor IC circuit chip which adopts an SOP28L packaging form and carries out special pin design to integrate a power supply, a transformer, a rectifier and a controller into a system level chip, thereby bringing thinning, multiple functions and high reliability of system integration.
In order to realize the purpose of the invention, the following scheme is adopted:
a bi-directional control sensor IC chip comprising an integrated circuit IC1, a transformer, an integrated circuit IC2 and a bipolar DIODE packaged in a module in the form of an SOP28L, the transformer being connected to the integrated circuit IC1 and the integrated circuit IC2, the integrated circuit IC2 being connected to the bipolar DIODE, wherein:
the integrated circuit IC2 is used for comparing the input high and low voltage signals and then outputting a power frequency alternating current voltage signal;
the bipolar DIODE DIODE is used for carrying out bridge rectification on a power frequency alternating current voltage signal output by the integrated circuit IC 2;
the transformer is used for carrying out voltage reduction control on the voltage signal after bridge rectification to obtain low-voltage direct-current voltage for driving the integrated circuit IC1 to work, and the low-voltage direct-current voltage is input to the integrated circuit IC1 for power supply;
the integrated circuit IC1 is a bidirectional control sensor chip, and is configured to transmit a signal through a signal transmitting end thereof, receive a signal through a signal receiving end thereof, and bidirectionally control the voltage, so as to implement two-way/bidirectional control of a sensing signal.
The PINs of the module, namely the PINs 3, 4, PIN5, PIN6, PIN7, PIN8, PIN9, PIN10, PIN11 and PIN12, and the PINs of the module, namely the PINs 17, PIN18, PIN19, PIN20, PIN21, PIN22, PIN23, PIN24, PIN25 and PIN26, are removed.
PIN PIN1 is a first forward voltage input PIN VS +; PIN PIN2 is a second positive voltage input functional PIN VS +; PIN3 is empty PIN, and no functional signal is output; PIN PIN12 is a rectification output PIN VREF; the PIN13 PIN is a low-level input PIN VOUT-, the PIN14 PIN is a high-level input PIN VOUT +, and the PIN15 PIN is a dead PIN and has no functional signal output; PIN16 is output voltage PIN ENABLE, PIN17 is error signal feedback PIN; the PIN26 is a first reverse voltage input PIN VS-, the PIN27 is a second reverse voltage input PIN VS-, and the PIN28 is a synchronous signal input PIN SYNC.
The bipolar DIODE is connected with a PIN12 PIN through a lead; the integrated circuit IC2 is connected with PINs PIN13, PIN14, PIN16 and PIN17 through leads; the integrated circuit IC1 is connected by wires to PIN1, PIN2, PIN26, PIN27, PIN28 PINs.
Integrated circuit IC2, an operational amplifier circuit, is used to compare the VOUT + input voltage with the VOUT-terminal input voltage: when the VOUT + input voltage is higher than the VOUT-end input voltage, a voltage comparator of the operational amplification circuit outputs a high-level power frequency alternating current voltage signal; when the VOUT + input voltage is lower than the VOUT-end input voltage, the voltage comparator of the operational amplification circuit outputs a low-level power frequency alternating current voltage signal.
An output voltage pin ENABLE and an error signal feedback pin for sensing and feeding back the output of the integrated circuit IC 2.
And a rectification output pin VREF used for detecting the rectification output of the bipolar DIODE DIODE.
The integrated circuit IC1 transmits signals through the first forward voltage input pin VS + and the second forward voltage input pin VS +, receives signals through the first reverse voltage input pin VS-and the second reverse voltage input pin VS-, and controls the forward and reverse directions of the voltage to realize the two-way/two-way control of the sensing signals.
And the synchronous signal input pin SYNC is used for trimming the integrated circuit IC1 to ensure the synchronism of the first forward voltage input pin VS + and the second forward voltage input pin VS + with the first reverse voltage input pin VS-and the second reverse voltage input pin VS-.
Transformer is connected to integrated circuit IC1 and integrated circuit IC2 via a support PAD of the package of SOP28L, and integrated circuit IC2 is connected to bipolar DIODE via a support PAD of the package of SOP 28L.
The invention has the beneficial effects that:
1. the integrated circuit is packaged into a module in an SOP28L mode, the module pins are specially processed, part of the pins are removed, the rest pins are correspondingly connected with devices in the module through leads, the packaging space is efficiently utilized, a power supply, a transformer, a rectifier and a controller are integrated into a system-level chip, the thinning, the multiple functions and the high reliability of system integration are brought, power frequency alternating current is input through an IC2 circuit, output voltage is obtained after comparison, the rectifying and the voltage reducing are carried out through a bridge rectifier and the transformer, low-voltage direct current is obtained, the work of the IC1 is driven, and the bidirectional control of the IC1 on signals is finally realized; the integrated circuit IC1 is a bidirectional control sensor chip, realizes two-way control of accurate sensing signals by transmitting signals through a signal transmitting end VS + and transmitting signals through a signal receiving end VS-and receiving signals through a signal receiving end VS-, and in practical application, adopts synchronous reference signals SYNC to carry out trimming and adjustment, ensures the synchronism of input signals VS + and output signals VS-of a device, and accordingly realizes timeliness and accuracy of sensing signal control.
2. The implementation of the module enables the control to be more flexible, the reaction speed to be higher, and the real-time control of the sensing circuit signals is realized; the device voltage is provided by an internal transformer, so that the electric energy is saved; the reliability and the convenient protection performance are higher; the modular design, it is more nimble to use.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 is a schematic diagram of a module package according to an embodiment of the invention.
Fig. 2 shows a schematic diagram of the internal topology of the module according to an embodiment of the present invention.
Fig. 3 is a functional diagram of the module package outline pins according to the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Examples
The bidirectional control sensor IC circuit chip of the present embodiment is implemented by packaging an integrated circuit IC1, a transformer, an integrated circuit IC2, and a bipolar DIODE in a module. Specifically, the package is realized by using the SOP28L package shape, and the module shape after the package is shown in FIG. 1.
As shown in fig. 1, each pin functions: PIN1 and PIN2 are positive voltage input terminals; PIN3 is a null PIN; PIN12 is a rectification output terminal; PIN13 is a low level input; PIN14 is a high input; PIN15 is a null PIN; PIN16 is the output voltage terminal; PIN17 is the error signal feedback terminal; PIN26 and PIN27 are reverse voltage input terminals; PIN28 is a synchronization signal input.
In addition, PINs of PIN3, PIN4, PIN5, PIN6, PIN7, PIN8, PIN9, PIN10, PIN11 and PIN12 are removed, and PINs of PIN17, PIN18, PIN19, PIN20, PIN21, PIN22, PIN23, PIN24, PIN25 and PIN26 are removed, so that a special outer PIN product is obtained.
The internal structure of the circuit comprises an integrated chip IC2, a transformer, a bipolar DIODE chip DIODE and a bidirectional control sensor chip IC1, and the bidirectional control sensor chip IC1 is used for performing bidirectional effective control on signals according to the PWM control design requirements, so that the output voltage or current of the bidirectional sensor integrated circuit is stable. The power supply conversion efficiency is extremely high and generally can reach 80% -90%, and the output voltage and current are very stable.
The specific topological relationship of the internal structure is shown in fig. 2. The transformer is connected with the integrated circuit IC1 and the integrated circuit IC2, and the integrated circuit IC2 is connected with the bipolar DIODE.
Specifically, the internal devices are carried by a package support, and transformer transfer is connected to integrated circuit IC1 and integrated circuit IC2 via a support PAD of the package support of SOP28L, and integrated circuit IC2 is connected to bipolar DIODE via a support PAD of the package support of SOP 28L. Among them, the carrier for carrying the transformer is required to pay attention to electrical insulation and heat dissipation, and when electrically connected, the carrier is required to prevent the pollution of the copper enameled wire to the bracket and other active devices during welding, and the reliability of injection molding packaging, such as delamination, is also required to be considered.
And the integrated circuit IC2 is used for comparing the input high and low voltage signals and outputting a power frequency alternating current voltage signal.
The DIODE is used for carrying out bridge rectification on the power frequency alternating current voltage signal output by the integrated circuit IC 2.
And the transformer is used for carrying out voltage reduction control on the bridge rectified voltage signal so as to obtain a low-voltage direct-current voltage for driving the integrated circuit IC1 to work, and the low-voltage direct-current voltage is input to the integrated circuit IC1 for supplying power.
The integrated circuit IC1 is a bidirectional control sensor chip, and is configured to transmit a signal through a signal transmitting end thereof, receive a signal through a signal receiving end thereof, and bidirectionally control the voltage, so as to implement two-way/bidirectional control of a sensing signal.
Referring to fig. 1 and 2, specifically, fig. 3 is a functional relationship diagram of the module package outline pins.
PIN PIN1 is a first forward voltage input PIN VS +; PIN PIN2 is a second positive voltage input functional PIN VS +; PIN3 is empty PIN, and no functional signal is output; PIN PIN12 is a rectification output PIN VREF; PIN13 PIN is a low level input PIN VOUT-; a PIN PIN14 is a high-level input PIN VOUT +; PIN15 is empty PIN, and no functional signal is output; PIN16 is output voltage PIN ENABLE; PIN PIN17 is an error signal feedback PIN; PIN PIN26 is a first reverse voltage input PIN VS-; PIN PIN27 is a second reverse voltage input PIN VS-; PIN28 is the synchronization signal input PIN SYNC.
Upon functional energization of the PINs as described above, the bipolar DIODE is connected by a lead to PIN 12; the integrated circuit IC2 is connected with PINs PIN13, PIN14, PIN16 and PIN17 through leads; the integrated circuit IC1 is connected by wires to PIN1, PIN2, PIN26, PIN27, PIN28 PINs. Specifically, the lead is a metal wire, can be connected in a bonding mode, and can be a copper wire or a gold wire.
Further, the functions of the chip module are detailed with reference to fig. 2 to 3.
Integrated circuit IC2, an operational amplifier circuit, is used to compare the VOUT + input voltage with the VOUT-terminal input voltage: when the VOUT + input voltage is higher than the VOUT-end input voltage, a voltage comparator of the operational amplification circuit outputs a high-level power frequency alternating current voltage signal; when the VOUT + input voltage is lower than the VOUT-end input voltage, the voltage comparator of the operational amplification circuit outputs a low-level power frequency alternating current voltage signal.
An output voltage pin ENABLE and an error signal feedback pin for sensing and feeding back the output of the integrated circuit IC 2.
And a rectification output pin VREF used for detecting the rectification output of the bipolar DIODE DIODE.
The integrated circuit IC1 transmits signals through the first forward voltage input pin VS + and the second forward voltage input pin VS +, receives signals through the first reverse voltage input pin VS-and the second reverse voltage input pin VS-, and controls the forward and reverse directions of the voltage to realize the two-way/two-way control of the sensing signals.
And the synchronous signal input pin SYNC is used for trimming the integrated circuit IC1 to ensure the synchronism of the first forward voltage input pin VS + and the second forward voltage input pin VS + with the first reverse voltage input pin VS-and the second reverse voltage input pin VS-.
The working mode is as follows:
inputting low level and high level to the chip through a VOUT-end and a VOUT + end, comparing the input voltage signals by the integrated chip IC2, and outputting power frequency alternating current voltage signals; meanwhile, the output of the integrated chip IC2 is detected and fed back by using an ENABLE end and an end;
rectifying the power frequency alternating voltage signal through a bipolar DIODE DIODE, and detecting the rectified output through VREF;
the transformer is used for carrying out voltage reduction control on the voltage signal after bridge rectification to obtain low-voltage direct-current voltage for driving the integrated circuit IC1 to work and outputting the low-voltage direct-current voltage to the integrated circuit IC 1;
the integrated circuit IC1 works through low-voltage direct-current voltage output by the transformer TRANSFORVER, and positive and negative bidirectional control is carried out on forward voltage input VS + ends of PIN1 and PIN2 and reverse voltage input VS-ends of PIN26 and PIN27, so that bidirectional control over sensing signals is realized;
meanwhile, a synchronous reference signal SYNC is adopted for trimming, and the synchronism of an input signal VS + and an output signal VS-of the device is ensured, so that the detection precision of the sensor is ensured.
This example drives the chip circuit of the inductor by using a bi-directional drive IC and converting to a specific voltage current using a transformer. Specifically, power frequency alternating current is input through an IC2 circuit, output voltage is obtained after comparison, low-voltage direct current is obtained after rectification and voltage reduction through a bridge rectifier and a transformer, the work of an IC1 is driven, and the bidirectional control of the IC1 on signals is finally achieved.
The bidirectional control sensor IC circuit chip of the embodiment has the advantages that:
1) the control is more flexible, the reaction speed is higher, and the real-time control of the sensing circuit signals is realized;
2) the device voltage is provided by an internal transformer, so that the electric energy is saved;
3) the reliability and the convenient protection performance are higher;
4) the modular design, it is more nimble to use.
The foregoing is merely a preferred embodiment of this invention and is not intended to be exhaustive or to limit the invention to the precise form disclosed. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.
Claims (10)
1. A bi-directional control sensor IC chip comprising an integrated circuit IC1, a transformer, an integrated circuit IC2 and a bipolar DIODE packaged in a module in the form of an SOP28L, the transformer being connected to the integrated circuit IC1 and the integrated circuit IC2, the integrated circuit IC2 being connected to the bipolar DIODE, wherein:
the integrated circuit IC2 is used for comparing the input high and low voltage signals and then outputting a power frequency alternating current voltage signal;
the bipolar DIODE DIODE is used for carrying out bridge rectification on a power frequency alternating current voltage signal output by the integrated circuit IC 2;
the transformer is used for carrying out voltage reduction control on the voltage signal after bridge rectification to obtain low-voltage direct-current voltage for driving the integrated circuit IC1 to work, and the low-voltage direct-current voltage is input to the integrated circuit IC1 for power supply;
the integrated circuit IC1 is a bidirectional control sensor chip, and is configured to transmit a signal through a signal transmitting end thereof, receive a signal through a signal receiving end thereof, and bidirectionally control the voltage, so as to implement two-way/bidirectional control of a sensing signal.
2. The bidirectional type control sensor IC circuit chip of claim 1, wherein: the PINs of the module, namely the PINs 3, 4, PIN5, PIN6, PIN7, PIN8, PIN9, PIN10, PIN11 and PIN12, and the PINs of the module, namely the PINs 17, PIN18, PIN19, PIN20, PIN21, PIN22, PIN23, PIN24, PIN25 and PIN26, are removed.
3. The bi-directional control sensor IC circuit chip of claim 1 or 2, wherein the module:
PIN PIN1 is a first forward voltage input PIN VS +;
PIN PIN2 is a second positive voltage input PIN VS +;
PIN3 is empty PIN, and no functional signal is output;
PIN PIN12 is a rectification output PIN VREF;
PIN13 PIN is a low level input PIN VOUT-;
a PIN PIN14 is a high-level input PIN VOUT +;
PIN15 is empty PIN, and no functional signal is output;
PIN16 is output voltage PIN ENABLE;
PIN PIN17 is an error signal feedback PIN;
PIN PIN26 is a first reverse voltage input PIN VS-;
PIN PIN27 is a second reverse voltage input PIN VS-;
PIN28 is the synchronization signal input PIN SYNC.
4. The bidirectional type control sensor IC circuit chip of claim 3, wherein:
the bipolar DIODE is connected with a PIN12 PIN through a lead;
the integrated circuit IC2 is connected with PINs PIN13, PIN14, PIN16 and PIN17 through leads;
the integrated circuit IC1 is connected by wires to PIN1, PIN2, PIN26, PIN27, PIN28 PINs.
5. The bi-directional control sensor IC circuit chip of claim 4, wherein the integrated circuit IC2, being an operational amplifier circuit, is configured to compare the VOUT + input voltage with the VOUT-terminal input voltage:
when the VOUT + input voltage is higher than the VOUT-end input voltage, a voltage comparator of the operational amplification circuit outputs a high-level power frequency alternating current voltage signal;
when the VOUT + input voltage is lower than the VOUT-end input voltage, the voltage comparator of the operational amplification circuit outputs a low-level power frequency alternating current voltage signal.
6. The bidirectional type control sensor IC circuit chip of claim 5, wherein: an output voltage pin ENABLE and an error signal feedback pin for sensing and feeding back the output of the integrated circuit IC 2.
7. The bidirectional type control sensor IC circuit chip of claim 4, wherein: and a rectification output pin VREF used for detecting the rectification output of the bipolar DIODE DIODE.
8. The bidirectional type control sensor IC circuit chip of claim 4, wherein: the integrated circuit IC1 transmits signals through the first forward voltage input pin VS + and the second forward voltage input pin VS +, receives signals through the first reverse voltage input pin VS-and the second reverse voltage input pin VS-, and controls the forward and reverse directions of the voltage to realize the two-way/two-way control of the sensing signals.
9. The bidirectional-type control sensor IC circuit chip of claim 8, wherein: and the synchronous signal input pin SYNC is used for trimming the integrated circuit IC1 to ensure the synchronism of the first forward voltage input pin VS + and the second forward voltage input pin VS + with the first reverse voltage input pin VS-and the second reverse voltage input pin VS-.
10. The bidirectional type control sensor IC circuit chip of claim 1, wherein: transformer is connected to integrated circuit IC1 and integrated circuit IC2 via a support PAD of the package of SOP28L, and integrated circuit IC2 is connected to bipolar DIODE via a support PAD of the package of SOP 28L.
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| CN202010302423.4A CN111223850B (en) | 2020-04-17 | 2020-04-17 | Bidirectional control sensor IC circuit chip |
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| CN202010302423.4A CN111223850B (en) | 2020-04-17 | 2020-04-17 | Bidirectional control sensor IC circuit chip |
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| CN111223850B true CN111223850B (en) | 2020-08-14 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067183A (en) * | 2018-08-28 | 2018-12-21 | 佛山市南海赛威科技技术有限公司 | Switching power source chip and its pin multiplexing circuit, pin multiplexing method |
| CN208986842U (en) * | 2018-07-04 | 2019-06-14 | 昂宝电子（上海）有限公司 | Power management chip |
| CN209844850U (en) * | 2019-01-31 | 2019-12-24 | 上海晶丰明源半导体股份有限公司 | Power supply circuit, chip and intelligent switch |
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- 2020-04-17 CN CN202010302423.4A patent/CN111223850B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208986842U (en) * | 2018-07-04 | 2019-06-14 | 昂宝电子（上海）有限公司 | Power management chip |
| CN109067183A (en) * | 2018-08-28 | 2018-12-21 | 佛山市南海赛威科技技术有限公司 | Switching power source chip and its pin multiplexing circuit, pin multiplexing method |
| CN209844850U (en) * | 2019-01-31 | 2019-12-24 | 上海晶丰明源半导体股份有限公司 | Power supply circuit, chip and intelligent switch |
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