MAX1666S Datasheet, PDF (6/16 Pages) Maxim Integrated Products – Advanced Lithium-Ion Battery-Pack Protector

Advanced Lithium-Ion
Battery-Pack Protector
(T_A = +25°C, unless otherwise noted.)
OVERCHARGE
PKN
(0.5V/div)
CGO
(10V/div)
t_P-DELAY
Typical Operating Characteristics (continued)
4.5V
4.1V
REF
(1V/div)
CGO
(10V/div)
OVERVOLTAGE FAULT
12 3 4
12 3 4
t_F-DELAY
t_F-DELAY
100ms/div
3.4V
2.9V
REF
(1V/div)
WRN
(10V/div)
DSO
(10V/div)
UNDERVOLTAGE FAULT
123 4
12 3 4
t_F-DELAY
t_F-DELAY
100ms/div
V_CELL2 = V_CELL3 = V_CELL4 = 4.15V,
OVERVOLTAGE THRESHOLD = 4.4V
3.4V
2.9V
REF
(1V/div)
CELL MISMATCH FAULT
1 234 1 2 3 4
PKF
(10V/div)
t_F-DELAY
t_F-DELAY
DSO
(10V/div)
100ms/div
V_CELL2 = V_CELL3 = V_CELL4 = 3.35V,
UNDERVOLTAGE THRESHOLD = 3.0V,
UVA = REF
100ms/div
V_CELL2 = V_CELL3 = V_CELL4 = 3.6V,
CELL MISMATCH THRESHOLD = 0.5V,
MMA = REF
UNDERVOLTAGE FAULT WITHOUT
CHARGE SOURCE (V_SRC < V_B4P + 1V)
3.4V
2.9V
REF
(1V/div)
V_CC
(2V/div)
DSO
(10V/div)
100ms/div
V_CELL2 = V_CELL3 = V_CELL4 = 3.35V,
UNDERVOLTAGE THRESHOLD = 3.0V,
UVA = REF
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