S-8235AAA-TCT1U Datasheet, PDF (8/24 Pages) Seiko Instruments Inc – FOR AUTOMOTIVE BATTERY PROTECTION IC

FOR AUTOMOTIVE BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)
S-8235A Series
Rev.1.7_00
1. Overcharge detection voltage n (V_CUn), Overcharge hysteresis voltage n (V_HCn)
Set V1 = V2 = V3 = V4 = V5 = V_CU − 0.050 V in initial status 1. V_CU1 is defined as the voltage V1 when the CO pin
output changes after the V1 voltage is gradually increased. V_CUn (n = 2 to 5) can also be defined in the same way as
V_CU1.
Moreover, set V1 = V_CU + 0.050 V, V2 = V3 = V4 = V5 = 2.8 V in initial status 1. V_HC1 is defined as the difference
between V1 and V_HC1 when the CO pin output changes again after the V1 voltage is gradually decreased. V_HCn
(n = 2 to 5) can also be defined in the same way as V_HC1.
2. CLKI pin voltage "H" (V_CLKIH), CLKI pin voltage "L" (V_CLKIL), RSTI pin voltage "L" (V_RSTIL),
RSTI pin voltage "H" (V_RSTIH)
V_CLKIH is defined as the voltage V8 when the CLKO pin output changes after the voltage V8 is gradually increased in
initial status 3. After that, V_CLKIL is defined as the voltage V8 when the CLKO pin output changes again after the
voltage V8 is gradually decreased.
V_RSTIL is defined as the voltage V9 when the CLKO pin output changes after the voltage V9 is gradually decreased in
initial status 2. After that, V_RSTIH is defined as the voltage V9 when the CLKO pin output changes again after the
voltage V9 is gradually increased.
3. CAI pin voltage "H" (V_CAIH), CAI pin voltage "L" (V_CAIL)
Set V12 = V_DN − 0.5 V, V9 = 0 V in initial status 2. Repeat increasing the voltage V12 and outputting 9 clocks from V8.
V_CAIH is defined as the minimum voltage V12 when the CAO pin output changes.
Set V12 = V_DN, V9 = 0 V in initial status 2. Repeat decreasing the voltage V12 and outputting 9 clocks from V8. V_CAIL
is defined as the maximum voltage V12 when the CAO pin output does not change.
4. CTL pin voltage "H" (V_CTLH), CTL pin voltage "L" (V_CTLL)
Set V13 = V_DN − 0.5 V in initial status 2. V_CTLH is defined as the voltage V13 when the CO pin output changes after the
voltage V13 is gradually increased.
Set V13 = V_DN in initial status 2. V_CTLL is defined as the voltage V13 when the CO pin output changes again after the
voltage V13 is gradually decreased.
5. Current consumption during operation (I_OPE), Current consumption during overdischarge (I_OPED)
Set V1 = V2 = V3 = V4 = V5 = V_CU − 1.0 V, V8 = V9 = V_DN in initial status 1. I_OPE is defined as the total current which
flows in the VDD pin and the VC1 pin.
Set V1 = V2 = V3 = V4 = V5 = 2.3 V, V8 = V9 = V_DN in initial status 1. I_OPED is defined as the total current which flows
in the VDD pin and the VC1 pin.
6. VCn pin current (I_VCn)
Set V1 = V2 = V3 = V4 = V5 = V_CU − 1.0 V in initial status 1. I_VCn is defined as the current which flows in the VCn pin
(n = 1 to 5), respectively.
7. VCn pin pull-down current (I_VCLn), VCn pin pull-up current (I_VCHn)
Set V1 = V2 = V3 = V4 = V5 = V_CU − 1.0 V, V9 = 0 V in initial status 1. I_VCL2 is defined as the current which flows in the
VC2 pin after increasing the voltage V8 up to 5 V.
I_VCL3 is defined as the current which flows in the VC3 pin subsequently after decreasing the voltage V8 down to 0 V
and increasing the voltage V8 up to 5 V. After that, each time increasing the voltage V8 up to 5 V from 0 V, the current
which flows in the VCn pin (n = 3 to 5) is defined in order of I_VCH3, I_VCH4, and I_VCH5, respectively.
8. CLKI pin current "H" (I_CLKIH), CLKI pin current "L" (I_CLKIL)
Set V8 = V_DN − 2.0 V, V9 = 0 V in initial status 2. I_CLKIH is defined as the maximum current which flows in the CLKI pin
when voltage V8 is gradually increased. I_CLKIL is defined as the current which flows in the CLKI pin after setting V9 =
0 V in initial status 2.
8