S8213 datasheet(8/28 Pages) SII

8 / 28 page

BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK (SECONDARY PROTECTION)

S-8213 Series

Rev.1.3_01

Seiko Instruments Inc.



Test Circuits

1. Overcharge detection voltage, overcharge hysteresis voltage

(Test circuit 1)

Set SW1 to OFF and ON in CMOS output product and Nch open-drain output product, respectively.

1. 1 Overcharge detection voltage n (VCUn)

Set V1 = V2 = V3 = VCU

− 0.05 V. The Overcharge detection voltage 1 (VCU1) is the V1 voltage when the CO pin’s

output changes after the voltage of V1 has been gradually increased.

Overcharge detection voltage VCUn (n = 2, 3) can be determined in the same way as when n = 1.

1. 2 Overcharge hysteresis voltage n (VHCn)

Set V1 = VCU

+ 0.05 V, V2 = V3 = 2.5 V. The overcharge hysteresis voltage 1 (VHC1) is the difference between V1

voltage and VCU1 when the CO pin’s output changes after the V1 voltage has been gradually decreased.

Overcharge hysteresis voltage VHCn (n = 2, 3) can be determined in the same way as when n = 1.

2. Output current

(Test circuit 5)

Set SW1 and SW2 to OFF.

2. 1 Active "H"

2. 1. 1 CO pin source current (ICOH)

Set SW1 to ON after setting V1 = 5.0 V, V2 = V3 = 3.0 V, V4 = 0.5 V. I1 is the CO pin source current (ICOH) at that

time.

2. 1. 2 CO pin sink current (ICOL)

Set SW2 to ON after setting V1 to V3 = 3.5 V, V5 = 0.5 V. I2 is the CO pin sink current (ICOL) at that time.

2. 1. 3 CO pin leakage current (ICOLL)

Set SW2 to ON after setting V1 = 5.0 V, V2 = V3 = 3.0 V, V5 = 26 V. I2 is the CO pin leakage current (ICOLL) at

that time.

2. 2 Active "L"

2. 2. 1 CO pin source current (ICOH)

Set SW1 to ON after setting V1 to V3 = 3.5 V, V4 = 0.5 V. I1 is the CO pin source current (ICOH) at that time.

2. 2. 2 CO pin sink current (ICOL)

Set SW2 to ON after setting V1 = 5.0 V, V2 = V3 = 3.0 V, V5 = 0.5 V. I2 is the CO pin sink current (ICOL) at that

time.

2. 2. 3 CO pin leakage current (ICOLL)

Set SW2 to ON after setting V1 to V3 = 3.5 V, V5 = 26 V. I2 is the CO pin leakage current (ICOLL) at that time.

S8213 Datasheet(PDF) 8 Page - Seiko Instruments Inc