fs3861 Fortune Semiconductor Corporation, fs3861 Datasheet - Page 7

• Manufacturer Part Number: fs3861
• Description: Intelligent Charger Management Controller
• Manufacturer: Fortune Semiconductor Corporation

6. Pin Description
Fortune Semiconductor Corp.
SNS
VCC
RST_/VPP
TEST
GPIO[0]
GPIO[1]
GND
GPIO[2]
OSC
PWMC
LED0
LED1
TS
VBATID
VBAT
CC
Name
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
Pin No
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
Current sensing using an external sensing resistor R
Supply voltage
Active low reset or as active high OTP program write
Test mode input. Test=1 is the normal mode. Test Mode is
initiated while Test=0 before reset. This pin is suggested
pulled inactive high for regular operation without Test
Mode.
General purpose bi-directional I/O pin 0
General purpose bi-directional I/O pin 1
Ground
General purpose bi-directional I/O pin 2
Oscillator input. Connect to an external resistor R=200kΩ,
the oscillator frequency is around 4.5MHz
PWM capacitor input for selection of the RC time constant
in generating voltage reference.
Source or sink LED0 display
Source or sink LED1 display
Battery temperature sensing input
Battery ID-type selected by the voltage drop across the
series resistor. Battery ID is for identification of either
thick, thin battery or other selected types
Battery input voltage
Charge control output to drive pass transistor
7/34
Description
FS3861
SNS
Rev. 1.0