CN216981548U

CN216981548U - 52.5W power output USB data charging device based on TI chip

Info

Publication number: CN216981548U
Application number: CN202123267490.6U
Authority: CN
Inventors: 胡玲; 华敏; 崔治学; 占家兴
Original assignee: Keboda Technology Co ltd
Current assignee: Keboda Technology Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-15
Anticipated expiration: 2031-12-23

Abstract

A USB data charging device based on a TI chip and with 52.5W power output comprises an MCU, a USB Hub chip, a first Type-C interface, a second Type-C interface, a double Type-C interface charging control chip with the Type of TPS25772, a Buck-Boost power converter chip with the Type of TPS55288 and a memory. The USB Hub chip is respectively in communication connection with the MCU, the first Type-C interface and the second Type-C interface. The double-Type-C interface charging control chip is in communication connection with the Buck-Boost power converter chip and the memory through a second I2C bus respectively. The double Type-C interface charging control chip is connected with a VBUS pin of the first Type-C interface; and are connected with the CC1 pin and the CC2 pin of the first and second Type-C interfaces, respectively. And the Buck-Boost power converter chip is connected with a VBUS pin of a second Type-C interface. The utility model has high integration level and can support the maximum power output of 52.5W.

Description

52.5W power output USB data charging device based on TI chip

Technical Field

The utility model relates to a USB interface charging technology.

Background

At present, consumers have increasingly wide application to electronic products such as mobile phones, flat panels, notebook computers and the like, and the requirement on charging power is continuously increased. The current high-power USB charging device is realized by using independent PD control chips and Buck-boost chips, and has poor integration level, poor EMC effect and high cost.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a USB data charging device with 52.5W power output based on TI chip, which has high integration level and low cost, and can support the maximum 52.5W power output.

The USB data charging device based on the 52.5W power output of the TI chip comprises an MCU, a USB Hub chip, a first Type-C interface and a second Type-C interface; the USB Hub chip is respectively in communication connection with the MCU, the first Type-C interface and the second Type-C interface; the USB data charging device is characterized by further comprising a double Type-C interface charging control chip with the model of TPS25772, a Buck-Boost power converter chip with the model of TPS55288 and a memory; the MCU is respectively connected with a Buck-Boost enabling pin of the double Type-C interface charging control chip and an enabling pin of the Buck-Boost power converter chip; the USB Hub chip is in communication connection with the double-Type-C interface charging control chip and the MCU through a first I2C bus respectively, and the double-Type-C interface charging control chip is in communication connection with the Buck-Boost power converter chip and the memory through a second I2C bus respectively; the INT pin of the double Type-C interface charging control chip is connected with the INT pin of the Buck-Boost power converter chip; the OUT pin of the double Type-C interface charging control chip is connected with the VBUS pin of the first Type-C interface; a first CC1 pin and a first CC2 pin of the double-Type-C interface charging control chip are respectively connected with a CC1 pin and a CC2 pin of a first Type-C interface, and a second CC1 pin and a second CC2 pin of the double-Type-C interface charging control chip are respectively connected with a CC1 pin and a CC2 pin of a second Type-C interface; and a VOUT pin of the Buck-Boost power converter chip is connected with a VBUS pin of the second Type-C interface.

The utility model has at least the following advantages and characteristics:

1. the USB data charging device provided by the embodiment of the utility model adopts a highly integrated double Type-C interface charging control chip with the model of TPS25772 and a Buck-Boost power converter chip with the model of TPS55288, which are produced by TI (Texas instruments) company, the double Type-C interface charging control chip with the model of TPS25772 integrates the functions of a Buck-Boost power converter and two PD protocol processors, the Buck-Boost power converter chip with the model of TPS55288 can work in a Buck or Boost mode under the control of a Type-C interface charging main control chip, the single Type-C interface of the embodiment outputs the maximum voltage of 45W, and the sum of the outputs of the two Type-C interfaces simultaneously supports 52.5W, so that compared with the traditional 5V × 3A USB data charging device, the charging speed of the electronic equipment is greatly increased, and the charging time is shortened;

2. in the embodiment, the requirements of the PD charging protocol controller and the BUCK-BOOST power converter chip are met by adopting a highly integrated TI chip scheme, so that the number of components of a peripheral configuration circuit is reduced, and the cost is reduced;

3. the USB data charging device of the present embodiment can also provide stable and efficient data communication.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 shows a schematic block circuit diagram of a USB data charging apparatus according to an embodiment of the present invention.

Fig. 2 shows a schematic diagram of a dual Type-C interface charging control chip and its peripheral circuits according to an embodiment of the present invention.

Fig. 3 shows a schematic diagram of a Buck-Boost power converter chip and its peripheral circuits according to an embodiment of the utility model.

FIG. 4 shows a schematic diagram of a memory according to an embodiment of the utility model.

FIG. 5 shows a schematic diagram of a USB Hub chip and its peripheral circuitry according to one embodiment of the present invention.

Fig. 6 shows a schematic diagram of an MCU and its peripheral circuits according to an embodiment of the present invention.

Fig. 7 shows a circuit schematic of an upstream HSD connector according to an embodiment of the present invention.

Fig. 8 shows a circuit schematic of a first temperature detection circuit according to an embodiment of the present invention.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 shows a schematic block circuit diagram of a USB data charging apparatus according to an embodiment of the present invention. Referring to fig. 1, the USB data charging device according to the embodiment of the present invention includes an MCU1, a USB Hub chip 2, a first Type-C interface 31, a second Type-C interface 32, a dual Type-C interface charging control chip 4 of a Type TPS25772, a Buck-Boost power converter chip 5 of a Type TPS55288, a memory 6, an uplink HSD connector 7, and a power supply circuit.

The USB Hub chip 2 is respectively connected with the MCU1, the first Type-C interface 31, the second Type-C interface 32 and the uplink HSD connector 7 in a communication mode. In this embodiment, a first GPIO pin of the MCU1 is connected to a GPIO pin of the USB HuB chip 2, a second GPIO pin of the MCU1 is connected to a Buck-Boost enable pin (pin 17 in fig. 2) of the dual Type-C interface charging control chip 4, and a third GPIO pin of the MCU1 is connected to an enable pin (pin 4 in fig. 3) of the Buck-Boost power converter chip 5. A first D + pin and a first D-pin of the USB Hub chip 2 are respectively connected with a D + pin and a D-pin of the first Type-C interface 31, and a second D + pin and a second D-pin of the USB Hub chip 2 are respectively connected with a D + pin and a D-pin of the second Type-C interface 32. The USBH _ DM0 pin, the USBH _ DP0 pin, the SEC _ USBH _ DM1 pin and the SEC _ USBH _ DP1 pin of the USB Hub chip 2 are respectively connected with the pin 2, the pin 4, the pin 3 and the pin 1 of the uplink HSD connector 7 shown in FIG. 7. The uplink HSD connector 7 is connected to the vehicle machine through an HSD cable, and USB communication of an uplink port can be achieved.

Further, the USB data charging device of the present embodiment further includes a first short-circuit and ESD-protection chip 91 and a second short-circuit and ESD-protection chip 92, wherein the first short-circuit and ESD-protection chip 91 and the second short-circuit and ESD-protection chip 92 are both chips manufactured by TI corporation and have a model number of TPD2S 703Q.

A first D + pin and a first D-pin of the USB Hub chip 2 are respectively connected with a VD + pin and a VD-pin of the first short-circuit and ESD protection chip 91, and the D + pin and the D-pin of the first short-circuit and ESD protection chip 91 are respectively connected with a D + pin and a D-pin of the first Type-C interface 31; the second D + pin and the second D-pin of the USB Hub chip 2 are connected to the VD + pin and the VD-pin of the second short circuit and ESD protection chip 92, respectively, and the D + pin and the D-pin of the second short circuit and ESD protection chip 92 are connected to the D + pin and the D-pin of the second Type-C interface 32, respectively.

The USB Hub chip 2 is in communication connection with the double Type-C interface charging control chip 4 and the MCU1 through a first I2C bus respectively, and the double Type-C interface charging control chip 4 is in communication connection with the Buck-Boost power converter chip 5 and the memory 6 through a second I2C bus respectively. The memory 6 is used for storing and updating programs. And an INT pin of the double Type-C interface charging control chip 4 is connected with an INT pin of the Buck-Boost power converter chip 5. The OUT pin of the double Type-C interface charging control chip 4 is connected with the VBUS pin of the first Type-C interface 31; a first CC1 pin and a first CC2 pin of the double-Type-C interface charging control chip 4 are respectively connected with a CC1 pin and a CC2 pin of the first Type-C interface 31, and a second CC1 pin and a second CC2 pin of the double-Type-C interface charging control chip 4 are respectively connected with a CC1 pin and a CC2 pin of the second Type-C interface 32. Preferably, the OUT pin of the charging control chip 4 with dual Type-C interface is grounded through a capacitor C1, so that the signal filtered by the capacitor C1 is output to the VBUS pin of the first Type-C interface 31.

And the VOUT pin of the Buck-Boost power converter chip 5 is connected with the VBUS pin of the second Type-C interface 32. Preferably, the VOUT pin of the Buck-Boost power converter chip 5 is grounded through a capacitor C2, so that the signal filtered by the capacitor C2 is output to the VBUS pin of the second Type-C interface 32.

The SCL pin and the SDA pin of the memory 6 are connected to the I2C _ SCL1 pin and the I2C _ SDA1 pin of the dual Type-C interface charging control chip 4, respectively. In the present embodiment, as shown in fig. 4, the memory 6 is an EEPROM memory.

Fig. 2 to 6 respectively show schematic diagrams of the dual Type-C interface charging control chip 4, the Buck-Boost power converter chip 5, the memory 6, the USB Hub chip 2, the MCU1, and peripheral circuits thereof according to an embodiment of the present invention. The peripheral circuits shown in fig. 2 to 6 are those recommended by chip manufacturers and will not be described in detail here. The first I2C bus pins I2C _ SCL2 and I2C _ SDA2 of the dual Type-C interface charging control chip 4 are respectively connected to the pin 38 and the pin 37 of the USB Hub chip shown in fig. 5, and are respectively connected to the pin 12 and the pin 11 of the MCU chip shown in fig. 6. The second I2C bus pins I2C _ SCL1 and I2C _ SDA1 of the dual Type-C interface charging control chip 4 are respectively connected to the pin 5 and the pin 6 of the Buck-Boost power converter chip shown in fig. 3, and are respectively connected to the pin 6 and the pin 5 of the memory 6 shown in fig. 4.

The power supply circuit comprises a power supply connector 81, an anti-reverse protection and EMI filtering circuit 82, a DC-DC voltage reduction circuit 83 and an LDO circuit 84.

The input end of the power connector 81 is used for connecting a power supply (the USB data charging device in this embodiment is a vehicle-mounted USB data charging device, and the power supply is a vehicle-mounted storage battery), the output end of the power connector 81 is connected with the input end of the anti-reverse protection and EMI filter circuit 82, and the output end of the anti-reverse protection and EMI filter circuit 82 is respectively connected with the power input pin VIN of the double-Type-C interface charging control chip 4, the power input pin VIN of the Buck-Boost power converter chip 5, and the input end of the DC-DC voltage reduction circuit 83. The output end of the DC-DC voltage reduction circuit 83 is connected to the input end of the LDO circuit 84, and the DC-DC voltage reduction circuit 83 is configured to convert the voltage output by the anti-reverse protection and EMI filter circuit 82 into a 5V voltage. The output end of the LDO circuit 84 is connected to the power input pin VIN of the USB Hub chip 2, and the LDO circuit 84 is used to convert the 5V voltage into the 3.3V voltage.

The design of the PD high-power charging output power supply needs to complete two functions: control of the PD charging protocol and control of the corresponding Buck-Boost power supply voltage conversion. The PD charging protocol control realizes the negotiation of the power supply capability between the USB data charging device as a power supply provider and the equipment to be charged of a power supply receiver, so as to achieve the purpose of charging the equipment to be charged in the voltage and current range agreed by the USB data charging device and the equipment to be charged of the power supply receiver. The Buck-Boost power voltage conversion is to convert an input power provided by an automobile generator or a vehicle-mounted battery into a voltage required by equipment to be charged according to an agreed condition after protocol communication. In the embodiment, the double Type-C interface charging control chip 4 with the model of TPS25772 integrates functions of a Buck-Boost power converter and two PD protocol processors, and the Buck-Boost power converter chip 5 with the model of TPS55288 can work in a Buck or Boost mode under the control of the double Type-C interface charging control chip.

The USB data charging device comprises a first temperature detection circuit 11, the output end of the first temperature detection circuit 11 is connected with the temperature signal acquisition end of the MCU1, and the first temperature detection circuit 11 is used for detecting the ambient temperature around the MCU 1. By presetting a plurality of temperature thresholds, the MCU1 can realize the automatic derating function at different temperatures. In the embodiment, when the temperature reaches the preset temperature threshold, the MCU1 controls Buck-boost enabling of the dual Type-C interface charging control chip 4 through GPIO. The MCU1 can also assist the USB Hub chip 2 in circuit enabling and diagnostic functions. When the MCU1 receives control signals HUB _ CTL1 and HUB _ CTL2 from the USB HUB chip 2, the dual Type-C interface charging control chip TPS25772 and the Buck-Boost power converter chip TPS55288 are respectively controlled by the TPS25772_ EN signal on the pin 17 and the TPS55288_ EN signal on the pin 16. The USB HUB chip 2 can read the module information such as software and hardware version stored in the MCU through the first I2C bus.

Fig. 8 shows a schematic circuit diagram of the first temperature detection circuit 11 according to an embodiment of the present invention. The resistor R319 is pulled up to a voltage of 3V3 (3V 3 is 3.3V mark), and is connected with the NTC thermistor TH301 in series and then grounded, and the voltage division T _ MONITOR between the two is connected with the temperature signal acquisition end of the MCU1 (the pin 14 of the MCU1 in FIG. 6).

Further, the USB data charging device includes a second temperature detection circuit 12, an output end of the second temperature detection circuit 12 is connected to the NTC pin of the temperature signal acquisition pin of the dual Type-C interface charging control chip 4, and the second temperature detection circuit 12 is configured to detect an ambient temperature around the dual Type-C interface charging control chip 4. The double Type-C interface charging control chip 4 can also realize the automatic derating function at different temperatures according to the preset temperature threshold value.

The USB data charging device provided by the embodiment of the utility model has the functions of intelligent power distribution and automatic derating at different temperatures, and greatly meets the urgent requirements of users on quick charging under the condition of ensuring the product safety. The experience of safe driving such as Carplay can also be carried out when having satisfied the customer and using high-power quick charge.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A USB data charging device based on 52.5W power output of a TI chip comprises an MCU, a USB Hub chip, a first Type-C interface and a second Type-C interface; the USB Hub chip is in communication connection with the MCU, the first Type-C interface and the second Type-C interface respectively; the USB data charging device is characterized by further comprising a double Type-C interface charging control chip with the model of TPS25772, a Buck-Boost power converter chip with the model of TPS55288 and a memory;

the MCU is respectively connected with a Buck-Boost enabling pin of the double Type-C interface charging control chip and an enabling pin of the Buck-Boost power converter chip; the USB Hub chip is in communication connection with the double Type-C interface charging control chip and the MCU through a first I2C bus respectively, and the double Type-C interface charging control chip is in communication connection with the Buck-Boost power converter chip and the memory through a second I2C bus respectively; the INT pin of the double Type-C interface charging control chip is connected with the INT pin of the Buck-Boost power converter chip; the OUT pin of the double Type-C interface charging control chip is connected with the VBUS pin of the first Type-C interface; a first CC1 pin and a first CC2 pin of the double-Type-C interface charging control chip are respectively connected with a CC1 pin and a CC2 pin of a first Type-C interface, and a second CC1 pin and a second CC2 pin of the double-Type-C interface charging control chip are respectively connected with a CC1 pin and a CC2 pin of a second Type-C interface;

and the VOUT pin of the Buck-Boost power converter chip is connected with the VBUS pin of the second Type-C interface.

2. The TI chip based 52.5W power output USB data charging device of claim 1, wherein the first D + pin and the first D-pin of the USB Hub chip are connected to the D + pin and the D-pin of the first Type-C interface, respectively, and the second D + pin and the second D-pin of the USB Hub chip are connected to the D + pin and the D-pin of the second Type-C interface, respectively.

3. The TI chip based 52.5W power output USB data charging device according to claim 2, wherein the USB data charging device comprises a first short circuit and ESD protection chip and a second short circuit and ESD protection chip, both of which are model TPD2S703Q manufactured by TI corporation;

a first D + pin and a first D-pin of the USB Hub chip are respectively connected with a VD + pin and a VD-pin of the first short-circuit and ESD protection chip, and the D + pin and the D-pin of the first short-circuit and ESD protection chip are respectively connected with a D + pin and a D-pin of the first Type-C interface; and a second D + pin and a second D-pin of the USB Hub chip are respectively connected with a VD + pin and a VD-pin of the second short circuit and ESD protection chip, and the D + pin and the D-pin of the second short circuit and ESD protection chip are respectively connected with a D + pin and a D-pin of the second Type-C interface.

4. The TI chip based 52.5W power output USB data charging device of claim 1, wherein said USB data charging device comprises a power supply circuit, said power supply circuit comprising a power connector, an anti-reverse protection and EMI filter circuit, a DC-DC buck circuit and an LDO circuit;

the input end of the power connector is used for connecting a power supply, the output end of the power connector is connected with the input end of the anti-reverse protection and EMI filter circuit, and the output end of the anti-reverse protection and EMI filter circuit is respectively connected with the power input pin of the double-Type-C interface charging control chip, the power input pin of the Buck-Boost power converter chip and the input end of the DC-DC voltage reduction circuit;

the output end of the DC-DC voltage reduction circuit is connected with the input end of the LDO circuit, and the DC-DC voltage reduction circuit is used for converting the voltage output by the anti-reverse protection and EMI filter circuit into 5V voltage;

the output end of the LDO circuit is connected with a power input pin of the USB Hub chip, and the LDO circuit is used for converting 5V voltage into 3.3V voltage.

5. The TI chip based 52.5W power output USB data charging device as claimed in claim 1, wherein said USB data charging device includes an upstream HSD connector, said USB Hub chip communicatively connected to said upstream HSD connector.

6. The TI chip-based USB data charging device for 52.5W power output according to claim 1, wherein a first GPIO pin, a second GPIO pin and a third GPIO pin of the MCU are respectively connected with a GPIO pin of the USB HuB chip, a Buck-Boost enable pin of the double Type-C interface charging control chip and an enable pin of the Buck-Boost power converter chip.

7. The TI chip-based USB data charging apparatus for 52.5W power output according to claim 1, wherein the USB data charging apparatus comprises a first temperature detection circuit, an output terminal of the first temperature detection circuit is connected with a temperature signal acquisition terminal of the MCU, and the first temperature detection circuit is used for detecting an ambient temperature around the MCU.

8. The TI chip-based USB data charging apparatus for 52.5W power output according to claim 1, wherein the USB data charging apparatus comprises a second temperature detection circuit, an output end of the second temperature detection circuit is connected with a temperature signal acquisition pin of the double Type-C interface charging control chip, and the second temperature detection circuit is used for detecting an ambient temperature around the double Type-C interface charging control chip.

9. The TI chip based 52.5W power output USB data charging device of claim 1, wherein the memory is an EEPROM memory.

10. The TI chip based 52.5W power output USB data charging device of claim 1, wherein the USB data charging device is an onboard USB data charging device.