Datasheet

bq20z65-R1
www.ti.com SLUS990 –DECEMBER 2009
TERMINAL FUNCTIONS (continued)
TERMINAL
I/O
(1)
DESCRIPTION
NO. NAME
Cell votage sense input and cell balancing input for the negative voltage of the bottom cell in cell
38 VC5 IA, P
stack.
Cell votage sense input and cell balancing input for the positive voltage of the bottom cell and the
39 VC4 IA, P
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
40 VC3 IA, P
cell stack and the negative voltage of the second highest cell in 4 cell applications.
Cell voltage sense input and cell balancing input for the positive voltage of the second highest cell
41 VC2 IA, P and the negative voltage of the highest cell in 4 cell applications. Connect to VC3 in 2 cell stack
applications.
Cell voltage sense input and cell balancing input for the positive voltage of the highest cell in cell
42 VC1 IA, P
stack in 4 cell applications. Connect to VC2 in 3 or 2 cell stack applications.
43 BAT I, P Battery stack voltage sense input.
44 CHG O High side N-channel charge FET gate drive
ABSOLUTE MAXIMUM RATINGS
Over operating free-air temperature (unless otherwise noted)
(1)
PIN UNIT
BAT, VCC –0.3 V to 34 V
PACK, PMS –0.3 V to 34 V
V
SS
Supply voltage range VC(n)-VC(n+1); n = 1, 2, 3, 4 –0.3 V to 8.5 V
VC1, VC2, VC3, VC4 –0.3 V to 34 V
VC5 –0.3 V to 1 V
PFIN, SMBD, SMBC. LED1, LED2, LED3,
–0.3 V to 6 V
LED4, LED5, DISP
TS1, TS2, SAFE, VCELL+, PRES, ALERT –0.3 V to V
(REG25)
+ 0.3 V
V
IN
Input voltage range
MRST, GSRN, GSRP, RBI –0.3 V to V
(REG25)
+ 0.3 V
ASRN, ASRP –1 V to 1 V
DSG, CHG, GPOD –0.3 V to 34 V
ZVCHG –0.3 V to V
(BAT)
V
OUT
Output voltage range TOUT, ALERT, REG33 –0.3 V to 6 V
RESET –0.3 V to 7 V
REG25 –0.3 V to 2.75 V
PRES, PFIN, SMBD, SMBC, LED1, LED2,
I
SS
Maximum combined sink current for input pins 50 mA
LED3, LED4, LED5
T
A
Operating free-air temperature range –40°C to 85°C
T
F
Functional temperature –40°C to 100°C
T
stg
Storage temperature range –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 MIN NOM MAX UNIT
V
SS
Supply voltage VCC, BAT 4.5 25 V
V
(STARTUP)
Minimum startup voltage VCC, BAT, PACK 5.5 V
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