MAX1666S Datasheet, PDF (8/16 Pages) Maxim Integrated Products – Advanced Lithium-Ion Battery-Pack Protector

Advanced Lithium-Ion
Battery-Pack Protector
CGO
SRC
DSI
SRC
CGI
B4P
B3P
B2P
BIP
GND
OVA
UVA
MMA
REF
PKN
SRC
CGI
D
"1"
Q
RB
CK
N
D
"1"
Q
RB
CK
OV_FAULT
CM_FAULT
UV_FAULT
CQI_FAULT
N
UV_FAULT
CM_FAULT
DQY_FAULT
30µA
MAX1666
CELL
VOLTAGE
SELECTOR
CMP_P
50kHZ
OSC
OSC
STATE
MACHINE
GND
LATCH_WRN
LATCH_OV
LATCH_UV
THRESHOLD
VOLTAGE
SELECTOR
CMP_N
1.221V
CMP
LATCH_CM
REG
EARLY
WARNING
REG
OVER-
VOLTAGE
REG
UNDER-
VOLTAGE
REG
CELL
MISMATCH
GND
200mV
300mV
GND
1V
B4P
CQI_HI
DQI_HI
550ms
TIMER
SET/RESET
CHARGE
UV_FAULT
CQI_FAULT
DQI_FAULT
OV_FAULT
WARNING
UV_FAULT
B4P
SHUTDOWN
3.3V
LINEAR
REG.
BIAS
WARNING
OV-FAULT
UV-FAULT
CM-FAULT
N
N
SRC
CM_FAULT
UV_FAULT
N
OV_FAULT
N
CM_FAULT
30µA
GND
N
N
30µA
GND
Figure 1. Functional Diagram
8 _______________________________________________________________________________________
DSO
PKF
WRN
VCC
TKO
UVO