Setting the detection voltage is possible with cell balance voltage detection and two types of OVLO available
for each cell.
Additionally, protection detection error can be controlled by setting delays for each voltage detection.
2.
Detect control block
ON/OFF control is possible by setting the ENIN pin.
Additionally, cell detection voltages can be set via VSET0, 1, 2 and OVLOSEL pins.
REG block
This is used as a power block for the chip’s internal blocks.
This block can also be used as I/F power source of control input/output.
Shunt SW
Shunt Switch is used for the cell balancing function.
SWDET
SWDET detects if the drain pins (D1~D6) are normally changed to “L” when cell balance voltage is
detected as a self-check function
Flag output
2 types of OVLO are output from VO_OVLO1, 2. Self-check function is output from VO_OK.
Absolute Maximum Ratings (Ta = 25°C)
Parameter
Supply Voltage
VCC,VCn(n=6) to VSS
Supply Voltage
VCn to Vcn-1(n=2~6)
VC1 to VSS
VDn to Vsn (n=1~6)
Supply Voltage
VREG,ENIN,VO_OVLO1,VO_OVLO2,
VO_OK,OVLOSEL,VSET0,VSET1,
VSET2,TEST0 to VSS
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
V1-1
Rating
-0.3 to 28
Unit
V
V2-1
-0.3 to 7
V
V2-2
-0.3 to 7
*1
V
Pd
Topr
Tstg
1.55
W
°C
°C
-40 to +105
-55 to 150
*
1
This value is for ROHM standard board (1 layer 70x70x1.6mm) mounting. For temperatures above 25°C, use a 12.4mW/°C derating factor.
Caution:
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in cases where the IC is
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