BQ34Z651_15 Datasheet, PDF (6/29 Pages) Texas Instruments – SBS 1.1-Compliant Gas Gauge

bq34z651
SLUSAL7 – AUGUST 2011
TERMINAL
NO.
NAME
38
VC5
39
VC4
40
VC3
41
VC2
42
VC1
43
BAT
44
CHG
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TERMINAL FUNCTIONS (continued)
I/O ⁽¹⁾
DESCRIPTION
IA, P
IA, P
IA, P
IA, P
IA, P
I, P
O
Cell voltage sense input and cell balancing input for the negative voltage of the bottom cell in cell
stack.
Cell voltage sense input and cell balancing input for the positive voltage of the bottom cell and the
negative voltage of the second lowest cell in cell stack.
Cell voltage sense input and cell balancing input for the positive voltage of the second lowest cell in
cell stack and the negative voltage of the second highest cell in 4-series cell applications.
Cell voltage sense input and cell balancing input for the positive voltage of the second highest cell
and the negative voltage of the highest cell in 4-series cell applications. Connect to VC3 in 2-series
cell stack applications.
Cell voltage sense input and cell balancing input for the positive voltage of the highest cell in cell
stack in 4-series cell applications. Connect to VC2 in 3-series or 2-series cell stack applications.
Battery stack voltage sense input
High-side N-channel charge FET gate drive
ABSOLUTE MAXIMUM RATINGS
Over operating free-air temperature (unless otherwise noted) ⁽¹⁾
PIN
BAT, VCC
PACK, PMS
V_SS Supply voltage range
VC(n) – VC(n+1); n = 1, 2, 3, 4
VC1, VC2, VC3, VC4
VC5
PFIN, SMBD, SMBC. LED1, LED2, LED3, LED4,
LED5, DISP
V_IN Input voltage range
TS1, TS2, SAFE, VCELL+, PRES, ALERT
MRST, GSRN, GSRP, RBI
ASRN, ASRP
DSG, CHG, GPOD
ZVCHG
V_OUT Output voltage range
TOUT, ALERT, REG33
RESET
REG25
I_SS
Maximum combined sink current for input
pins
PRES, PFIN, SMBD, SMBC, LED1, LED2, LED3,
LED4, LED5
T_A
Operating free-air temperature range
T_F
Functional temperature
T_stg Storage temperature range
UNIT
–0.3 V to 34 V
–0.3 V to 34 V
–0.3 V to 8.5 V
–0.3 V to 34 V
–0.3 V to 1 V
–0.3 V to 6 V
–0.3 V to V_(REG25) + 0.3 V
–0.3 V to V_(REG25) + 0.3 V
–1 V to 1 V
–0.3 V to 34 V
–0.3 V to V_(BAT)
–0.3 V to 6 V
–0.3 V to 7 V
–0.3 V to 2.75 V
50 mA
–40°C to 85°C
–40°C to 100°C
–65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Over operating free-air temperature range (unless otherwise noted)
PIN
V_SS
V_(STARTUP)
Supply voltage
Minimum startup voltage
VCC, BAT
VCC, BAT, PACK
MIN NOM MAX
4.5
25
5.5
UNIT
V
V
6
Copyright © 2011, Texas Instruments Incorporated