CN209267231U - A kind of novel patch integrated protective circuit device and its charge protector of application - Google Patents
A kind of novel patch integrated protective circuit device and its charge protector of application Download PDFInfo
- Publication number
- CN209267231U CN209267231U CN201920128736.5U CN201920128736U CN209267231U CN 209267231 U CN209267231 U CN 209267231U CN 201920128736 U CN201920128736 U CN 201920128736U CN 209267231 U CN209267231 U CN 209267231U
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Abstract
The utility model discloses a kind of novel patch integrated protective circuit devices in electronic component field, including the chip being mounted on frame, framework encapsulation is in plastic-sealed body, frame includes the first pin, second pin, third pin, 4th pin, 5th pin and Ji Dao, first pin, third pin, 4th pin, 5th pin and base island are relatively independent, and second pin is extended out by Ji Dao and is formed, chip includes protection chip and MOS chip, and the two is arranged in the plane of base island, protection chip is connected with third pin through lead, protection chip is connected with MOS chip through lead, MOS chip and the first pin, 5th pin is connected through lead respectively, the utility model will protect chip and MOS chip layout on an island Kuai Ji, cooperate SOT-23-5L encapsulation, reduce device Volume can be used in lithium battery charging circuit so that the device is highly suitable to be applied for space and limits to obtain very small rechargeable battery pack application.
Description
Technical field
The utility model relates to a kind of charging protective circuit of lithium cell, in particular to a kind of lithium battery charge protection device.
Background technique
Lithium battery protection circuit is the charge and discharge protecting to serial lithium battery group；It can guarantee each single battery when fully charged
Between voltage differences be less than setting value (general ± 20mV), realize filling for each single battery of battery pack, effectively improve
Charging effect under serial connection charge mode；The over-voltage of each single battery in battery pack, under-voltage, overcurrent, short circuit, mistake are detected simultaneously
Temperature state is protected and extends battery；Under-voltage protection makes each single battery avoid battery because of mistake when discharging and using
It discharges and damages.Charge protector device architecture in the prior art is larger, does not adapt to existing electronic device industry development
It is required that.
Utility model content
The purpose of the utility model is to provide a kind of novel patch integrated protective circuit devices, by installing two chips
In the plane of same base island, so that bulk has been saved, meanwhile, cooperate the protection device of dual chip to charge to lithium battery
Play the role of protection in journey well.
Purpose of the utility model is realized as follows: a kind of novel patch integrated protective circuit device, including be mounted on
Chip on frame, for the framework encapsulation in plastic-sealed body, the frame includes the first pin, second pin, third pin, the
Four pins, the 5th pin and Ji Dao, first pin, third pin, the 4th pin, the 5th pin are opposite with Ji Dao only
It is vertical, and second pin is extended out by Ji Dao and is formed, the chip includes protection chip and MOS chip, and the two is arranged in
In the plane of base island, the protection chip is connected with third pin through lead, and the protection chip is connected with MOS chip through lead,
The MOS chip is connected through lead respectively with the first pin, the 5th pin.
As further limiting for the utility model, the protection chip selects DW01 chip.
As further limiting for the utility model, the MOS chip selects 8205 family chips.
A kind of charging protective circuit of lithium cell, including charger positive and negative anodes, lithium battery and integrated protective circuit device, institute
Stating integrated protective circuit device includes the chip being mounted on frame, and in plastic-sealed body, the frame includes the framework encapsulation
First pin, second pin, third pin, the 4th pin, the 5th pin and Ji Dao, first pin, third pin,
Four pins, the 5th pin and base island are relatively independent, and second pin is extended out by Ji Dao and formed, and the chip includes protection core
Piece and MOS chip, and the two is arranged in the plane of base island, the protection chip is connected with third pin through lead, the guarantor
Shield chip is connected with MOS chip through lead, and the MOS chip is connected through lead respectively with the first pin, the 5th pin；Described
Three pins connect lithium battery anode through resistance R1, and the third pin also connects second pin through capacitor C1, and second pin connects lithium battery
Cathode, the anode of the lithium battery connect charger anode, and the 4th pin and the 5th pin connect charger cathode.
Compared with prior art, the beneficial effects of the utility model are, the utility model will protect chip and MOS chip
It is arranged on an island Kuai Ji, cooperation SOT-23-5L encapsulation reduces the volume of device, so that the device is highly suitable to be applied for
Space limits to obtain very small rechargeable battery pack application, reduces the manufacturing cost of electronic circuit board.The utility model is available
In lithium battery charging circuit.
Detailed description of the invention
Fig. 1 is integrated protective circuit device architecture schematic diagram in the utility model.
Fig. 2 is integrated protective circuit device pin schematic diagram in the utility model.
Fig. 3 is charging protective circuit of lithium cell schematic diagram in the utility model.
Wherein, 1 first pin, 2 second pins, 3 third pins, 4 the 4th pins, 5 the 5th pins, 6 protection chips, 7MOS
Chip, 8 leads, 9 Ji Dao.
Specific embodiment
Embodiment 1
A kind of novel patch integrated protective circuit device as shown in Figs. 1-2, including the chip being mounted on frame, frame
Be encapsulated in plastic-sealed body, frame include the first pin 1, second pin 2, third pin 3, the 4th pin 4, the 5th pin 5 and
Base island 9, the first pin 1, third pin 3, the 4th pin 4, the 5th pin 5 and base island 9 are relatively independent, and second pin 2 is by base
Island 9 extends out to be formed, and chip includes protection chip 6 and MOS chip 7, and the two is arranged in 9 plane of base island, protects core
Piece 6 is connected with third pin 3 through lead 8, and protection chip 6 is connected with MOS chip 7 through lead 8, MOS chip 7 and the first pin 1,
5th pin 5 is connected through lead 8 respectively, and protection chip 6 selects DW01 chip, and MOS chip 7 selects 8205 family chips.
It is test pin that each pin corresponding function, which is respectively as follows: the first pin 1, in embodiment 1, and second pin 2 is negative for battery core
Pole, third pin 3 are power input pin, and the 4th pin 4 and the 5th pin 5 are charger or load cathode, pass through internal MOS
Chip 7 is connected to GND.
Embodiment 2
A kind of charging protective circuit of lithium cell as shown in Figure 3, including charger positive and negative anodes, lithium battery and integrated protection
Circuit devcie, integrated protective circuit device include the chip being mounted on frame, and for framework encapsulation in plastic-sealed body, frame includes the
One pin 1, second pin 2, third pin 3, the 4th pin 4, the 5th pin 5 and base island 9, the first pin 1, third pin 3,
4th pin 4, the 5th pin 5 and base island 9 are relatively independent, and second pin 2 is extended out by base island 9 and formed, and chip includes protecting
Chip 6 and MOS chip 7 being protected, and the two is arranged in 9 plane of base island, protection chip 6 is connected with third pin 3 through lead 8,
Protection chip 6 is connected with MOS chip 7 through lead 8, and MOS chip 7 is connected through lead 8 respectively with the first pin 1, the 5th pin 5；
Third pin 3 connects lithium battery anode through resistance R1, and third pin 3 also connects second pin 2 through capacitor C1, and second pin 2 connects lithium electricity
Pond cathode, the anode of lithium battery connect charger anode, and the 4th pin 4 and the 5th pin 5 connect charger cathode.
This programme will be using having very small SOT-23-5L encapsulation volume, so that the device is highly suitable to be applied for sky
Between limit to obtain very small rechargeable battery pack application；Product includes advanced power MOSFET, the voltage inspection on high-precision road
Slowdown monitoring circuit and delay electricity；With overcharging, over-discharge, overcurrent, defencive function needed for all batteries such as short circuit, and power consumption when working
It is very low.The product is single-unit lithium ion/lighium polymer rechargeable battery pack protection high integration solution.Reduce electricity
The manufacturing cost of sub- wiring board.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (4)
1. a kind of novel patch integrated protective circuit device, which is characterized in that including the chip being mounted on frame, the frame
It is encapsulated in plastic-sealed body, the frame includes the first pin, second pin, third pin, the 4th pin, the 5th pin and base
Island, first pin, third pin, the 4th pin, the 5th pin and base island are relatively independent, and second pin is extended by Ji Dao
It is formed out, the chip includes protection chip and MOS chip, and the two is arranged in the plane of base island, the protection chip
It is connected with third pin through lead, the protection chip is connected with MOS chip through lead, the MOS chip and the first pin,
Five pins are connected through lead respectively.
2. a kind of novel patch integrated protective circuit device according to claim 1, which is characterized in that the protection chip
Select DW01 chip.
3. a kind of novel patch integrated protective circuit device according to claim 1 or 2, which is characterized in that the MOS core
Piece selects 8205 family chips.
4. a kind of charging protective circuit of lithium cell, which is characterized in that including charger positive and negative anodes, lithium battery and integrated protection electricity
Road device, the integrated protective circuit device include the chip being mounted on frame, and the framework encapsulation is described in plastic-sealed body
Frame includes the first pin, second pin, third pin, the 4th pin, the 5th pin and Ji Dao, first pin, the
Three pins, the 4th pin, the 5th pin and base island are relatively independent, and second pin is extended out by Ji Dao and formed, the chip
Including protection chip and MOS chip, and the two is arranged in the plane of base island, and the protection chip is with third pin through lead phase
Even, the protection chip is connected with MOS chip through lead, and the MOS chip is with the first pin, the 5th pin respectively through lead phase
Even；The third pin connects lithium battery anode through resistance R1, and the third pin also connects second pin, second pin through capacitor C1
Cathode of lithium battery is connect, the anode of the lithium battery connects charger anode, and the 4th pin and the 5th pin connect charger cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128736.5U CN209267231U (en) | 2019-01-25 | 2019-01-25 | A kind of novel patch integrated protective circuit device and its charge protector of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128736.5U CN209267231U (en) | 2019-01-25 | 2019-01-25 | A kind of novel patch integrated protective circuit device and its charge protector of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209267231U true CN209267231U (en) | 2019-08-16 |
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ID=67584870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920128736.5U Active CN209267231U (en) | 2019-01-25 | 2019-01-25 | A kind of novel patch integrated protective circuit device and its charge protector of application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783325A (en) * | 2019-10-08 | 2020-02-11 | 深圳市稳先微电子有限公司 | Package body |
| CN116825745A (en) * | 2023-08-31 | 2023-09-29 | 中科华艺(天津)科技有限公司 | MTCMOS packaging structure with double-chip structure |
-
2019
- 2019-01-25 CN CN201920128736.5U patent/CN209267231U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783325A (en) * | 2019-10-08 | 2020-02-11 | 深圳市稳先微电子有限公司 | Package body |
| CN110783325B (en) * | 2019-10-08 | 2022-01-04 | 深圳市稳先微电子有限公司 | Package body |
| CN116825745A (en) * | 2023-08-31 | 2023-09-29 | 中科华艺(天津)科技有限公司 | MTCMOS packaging structure with double-chip structure |
| CN116825745B (en) * | 2023-08-31 | 2023-12-08 | 中科华艺(天津)科技有限公司 | MTCMOS packaging structure with double-chip structure |
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