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LiPoChargeProtectBoost copy

3 years ago 51916
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LiPoChargeProtectBoost

LiPoChargeProtectBoost

BOM

ID Value Qty. Package Components
1 FS312F-G 1 SOT-23-6 U1
2 MICRO USB 1 MICRO-USB-1 USB1
3 Toggle Switch 1 SW5-2.0-8.8X4.4X4.7MM-90D SW1
4 TP4056 1 SOP-8_EP_150MIL U2
5 1k 3 0603 R1,R3,R4
6 22uF 2 1812 C1,C2
7 10u 1 0603 C3
8 Red(0603) 1 LED-0603 LEDR
9 19-217/GHC-YR1S2/3T 1 LED-0603 LEDG
10 7.5k 1 0603 R2
11 5V 1 HDR-1X1/2.54 5V
12 FS8205 1 SOT-23-6 Q1
13 2k 2 0603 R5,R7
14 BAT+ 1 HDR-1X1/2.54 BAT+
15 100 1 0603 R6
16 0.1u 1 0603 C4
17 BAT- 1 HDR-1X1/2.54 BAT-
18 GND 1 HDR-1X1/2.54 GND
19 MT3608 1 SOT-23-6 U4
20 SS34 1 SMA(DO-214AC) D1
21 22uH 1 7*7*4 L2

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Comments (7)

fleckingerre Reply

Hi!


I'm reading the datasheet of the FS312F-G right now and in the "Typical Application Circuit" your R7 connects the CS-Pin with Bat- through 1k. But you use a 2k Resistor to connect the CS-Pin with common ground. Why is that?


Many Greetings!
Remo

fleckingerre Reply

My mistake! I got confused reading the datasheet.

Guest Reply

Nice share. Thanks for the datasheet.
torrent sites

pnarsai.interlog Reply

Is this for Lipo or for li-ion?

MyTja Reply

@pnarsai.interlog It is for Li-Po and Li-ion, since they got similar nominal voltage.

combicon Reply

I think this PCB is for power bank circuit with over charge and over current protection. ( TP5086 IC module)

Justin S Reply

I've been having issues with a slightly modified version of this and am trying to figure out why.


Question #1: Why is Batt- not common with GND?
Question #2: The TP4056 recommends a 10uF capacitor between BAT and GND, but I do not see that anywhere. (Only a 0.1uf near the FS312F-G). Could this be the cause of some instability or extreme sensitivity to trace length/width?


Regards,
Owna

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