S-8235AAA-TCT1U Datasheet, PDF (9/24 Pages) Seiko Instruments Inc – FOR AUTOMOTIVE BATTERY PROTECTION IC

FOR AUTOMOTIVE BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)
Rev.1.7_00
S-8235A Series
9. RSTI pin current "H" (I_RSTIH), RSTI pin current "L" (I_RSTIL)
Set V9 = V_DN − 2.0 V in initial status 2. I_RSTIH is defined as the maximum current which flows in the RSTI pin when the
voltage V9 is gradually increased. I_RSTIL is defined as the current which flows in the RSTI pin after setting V9 = 0 V in
initial status 2.
10. CAI pin current "H" (I_CAIH), CAI pin current "L" (I_CAIL)
I_CAIH is defined as the current which flows in the CAI pin after setting V9 = 0 V, V12 = V_DN in initial status 2.
Set V12 = 2.0 V, V9 = 0 V. I_CAIL is defined as the minimum current which flows in the CAI pin when the voltage V12 is
gradually decreased.
11. CTL pin current "H" (I_CTLH), CTL pin current "L" (I_CTLL)
I_CTLH is defined as the current which flows in the CTL pin after setting V13 = V_DN in initial status 2.
Set V13 = 2.0 V, V9 = 0 V in initial status 2. I_CTLL is defined as the minimum current which flows in the CTL pin when
the voltage V13 is gradually decreased.
12. CO pin sink current (I_COL), CO pin source current (I_COH)
I_COL is defined as the current which flows in the CO pin after setting SW_CO = ON, V6 = 0.5 V in initial status 2.
I_COH is defined as the current which flows in the CO pin after setting SW_CO = ON, V13 = V_DN, V6 = V_DN − 0.5 V in initial
status 2.
13. CAO pin sink current (I_CAOL), CAO pin source current (I_CAOH)
I_CAOL is the current which flows in the CAO pin after setting SW_CAO = ON, V7 = 0.5 V in initial status 2.
I_CAOH is the current which flows in the CAO pin after setting SW_CAO = ON, V9 = 0.5 V, V8 = 5 V, V7 = V_DN − 0.5 V in
initial status 2.
14. RSTO pin sink current (I_RSTOL), RSTO pin source current (I_RSTOH)
I_RSTOL is defined as the current which flows in the RSTO pin after setting SW_RSTO = ON, V10 = 0.5 V in initial status 3.
I_RSTOH is defined as the current which flows in the RSTO pin after setting SW_RSTO = ON, V10 = V_DN − 0.5 V in initial
status 2.
15. CLKO pin sink current (I_CLKOL), CLKO pin source current (I_CLKOH)
I_CLKOL is defined as the current which flows in the CLKO pin after setting SW_CLKO = ON, V9 = 0 V, V11 = 0.5 V in initial
status 2.
I_CLKOH is defined as the current which flows in the CLKO pin after setting SW_CLKO = ON, V11 = V_DN − 0.5V in initial
status 2.
16. Overcharge detection delay time (t_CU)
t_CU is defined as the time period until the CO pin output changes after increasing the voltage V1 up to 5.0 V in initial
status 1.
17. Overcharge timer reset delay time (t_TR)
Increase the voltage V1 up to 5.0 V in initial status 1 (first rising), and decrease the voltage V1 down to 2.8 V within t_CU.
After that, increase voltage V1 up to 5.0 V again (second rising), and measure the time period until the CO pin output
changes. If the time period from when the voltage V1 is decreased to the second rising is short, CO pin output
changes after t_CU is elapsed from the first rising. When the time period is gradually made longer, CO pin output
changes after t_CU is elapsed from the second rising. t_TR is defined as the time period from when the voltage V1 is
decreased to the second rising.
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