BQ28Z560-R1 Datasheet, PDF (4/60 Pages) Texas Instruments – Single Cell Li-Ion Battery Gas Gauge and Protection

bq28z560-R1
SLUSBD3 – APRIL 2013
PIN DETAILS
DOUT 1
COUT 2
VM 3
BAT 4
VREG 5
VSS 6
DRZ Package
(Top View)
Thermal Pad
12 GPIO
11 SCL
10 SDA
9 TS
8 SRN
7 SRP
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Table 1. Pin Descriptions
PIN
NUMBER
1
2
PIN
NAME
DOUT
COUT
3
VM
4
BAT
5
VREG
6
VSS
7
SRP
8
SRN
9
TS
10
SDA
11
SCL
12
GPIO
13
PWPD
I/O ⁽¹⁾
IA
IA
IA
IA
P
P
IA
IA
IA
I/O
I
I/O
I/O
DESCRIPTION
The output of the gate drive for discharge FET
The output of the gate drive for charge FET
Analog input pin connected to the PACKN through a 510-Ω resistor. Overcurrent and short-circuit
protection circuits use the voltage across VM and VSS to detect if excessive charge or discharge
current is flowing through the protection FETs.
Cell voltage measurement input. ADC input. Connect a 0.1-µF ceramic capacitor to VSS.
2.5-V output voltage of the internal integrated LDO. Connect a 0.1-µF ceramic capacitor to VSS.
Device ground
Analog input pin connected to the internal coulomb counter where SRP is nearest the CELL–
connection. Connect to a 5-mΩ to 20-mΩ sense resistor.
Analog input pin connected to the internal coulomb counter where SRN is nearest the PACKN
connection. Connect to a 5-mΩ to 20-mΩ sense resistor.
Pack thermistor voltage sense (use 103AT-type thermistor), ADC input
Serial Data interface for SMBus
Serial Clock interface for SMBus
General Purpose control output for configuration as CFET control OR Alert output OR HDQ interface
Thermal Pad. Connect to VSS externally on PCB.
(1) IA = Input Analog, OA = Output Analog, P = Power Connection
4
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