MAX1666A Datasheet, PDF (3/17 Pages) Maxim Integrated Products – Advanced Lithium-Ion Battery-Pack Protector

Advanced Lithium-Ion
Battery-Pack Protector
ELECTRICAL CHARACTERISTICS (continued)
(V_SRC = 16V, each cell voltage V_CELL = 3.6V, 330kΩ load at REF, T_A = 0°C to +85°C, unless otherwise noted. Typical values are at
T_A = +25°C.)
PARAMETER
WRN Early-Warning Threshold
WRN Early-Warning-Threshold
Hysteresis
OVA, UVA, MMA Input Current
Cell Mismatch Threshold
PKN to GND Overdischarge-
Current Threshold
PKN to GND Overcharge-Current
Threshold
Overcurrent Fault-Timer Delay
Overdischarge/Overcharge-
Current Fault-Blanking Time
DSO, CGO, UVO Output Sink
Current
DSO, CGO Output Source
Current
DSO, CGO, UVO Leakage
Current
TKO Pulldown Resistance,
MAX1666S/V/X
TKO Sink Current, MAX1666A
Only
TKO Leakage Current,
MAX1666A Only
Minimum B3P Voltage for TKO
Low, MAX1666A Only
TKO Source Current
DSI, CGI Input High Voltage
DSI, CGI Input Low Voltage
DSI, CGI Input Current
WRN Sink Current
PKF Sink Current
PKF, WRN Leakage Current
Undervoltage, Overvoltage, or
Mismatch Fault, to DSO, CGO,
TKO Transition Delay
SYMBOL
CONDITIONS
Above undervoltage threshold, cell voltage
falling
OVA, UVA, MMA = REF
MMA = GND
All cells > 2V
V_MMA = V_REF / 2
MMA = REF
t_P-DELAY
t_I-DELAY
No faults, V_DSO = V_CGO = V_UVO = 1V to
27V
V_DSO = V_SRC - 4V and V_CGO = V_SRC - 4V,
fault condition
V _DSO = V _CGO = V_UVO = 27V, fault condition
V _TKO = 16V
V _TKO = 16V, V_CGI = 3V
V_SRC = V_B3P + 1V, I_TKO = 0.5mA
TKO = GND
Referenced to PKN
Referenced to PKN
V_DSI, V_CGI = 5V
Fault condition, V _WRN = 0.4V
Fault condition, V _PKF = 0.4V
V _PKF = V _WRN = 27V
t_F-DELAY
Fault persistent for four consecutive sample
periods
MIN
±450
270
-220
330
1.6
20
2
100
1
1
2
2
4
180
TYP
100
200
0.1
±0
±250
±500
300
-200
550
2.4
30
10
200
2.5
2.4
8
4
8
320
MAX UNITS
mV
mV
20
nA
mV
±550
330
mV
-180
mV
770
ms
3.2
ms
40
µA
mA
0.2
µA
kΩ
mA
1
µA
3.6
V
mA
V
0.45
V
1
µA
mA
mA
0.2
µA
460
ms
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