pt6105 China Resources Powtech (Shanghai) Co., Ltd, pt6105 Datasheet - Page 2

• Manufacturer Part Number: pt6105
• Description: Multi-cell Battery Management Front End With I 2 C Interface
• Manufacturer: China Resources Powtech (Shanghai) Co., Ltd

China Resources Powtech (Shanghai) Limited
PT6105_DS Rev EN_1.1
PIN DESCRIPTION
Pin #
TYPICAL APPLICATION EXAMPLE
Q1 and Q2 are MOSFET switches controlled by two gate driving voltages CH_FET and DS_FET. Their functions
are described in Table 2.
Please note that Q1 and Q2 could be not only turned on
by DC voltage, but also by a PWM sequence. D2 and
R1 are added for short circuit loading protection during
10
11
12
15
16
17
18
19
13
14
20
21
22
23
24
1
2
3
4
5
6
7
8
9
Function
Battery
voltage input
Charging/
discharging control
Charging/
discharging control
with MCU
Analog power
supply
Interface
CH_FET
1 (or PWM)
0
Table 2. The functions of charging/discharging control switched
DS_FET
1 (or PWM)
CH_FET
DS_REF
DS_FET
VMON
CH_IN
DS_CS
TSREF
DS_IN
VDDD
GNDD
GNDA
Name
GNDP
SDA
VB7
VB6
VB5
VB4
VB3
VB2
VB1
VB0
SCL
VIN
TS
0
Description
Power supply
Battery cell 7 voltage input
Battery cell 6 voltage input
Battery cell 5 voltage input
Battery cell 4 voltage input
Battery cell 3 voltage input
Battery cell 2 voltage input
Battery cell 1 voltage input
This pin connects to the most negative terminal in the battery string
Charge control signal in
Discharge control signal in
Connect to ground
Discharging current sense reference
Discharging current sense monitor
Discharge MOSFET gate drive
Charge MOSFET gate drive
Discharge load monitoring for short circuit protection
Serial clock
Serial date
Regulated 5V supply voltage to MCU and E
Digital ground
Temperature monitor input
Analog ground
TS input reference voltage
Operation status
Battery charging or discharging
1) Battery charging/discharging safety protection
2) Battery standby
WWW.CRPOWTECH.COM
battery discharging. D3 limits the gate-source voltage
of Q1 to be less than 15V. D4 and R2 are used to
protect the CH_FET pin from being damaged by the
Multi-cell Battery Management
Front End with I
2
PROM
PT6105
2
C Interface
Page 2