fs3332 Fortune Semiconductor Corporation, fs3332 Datasheet - Page 12

• Manufacturer Part Number: fs3332
• Description: Two Cell Lithium-ion/polymer Battery Protection Ic
• Manufacturer: Fortune Semiconductor Corporation

Rev. 1.0
11.7 Measurement 7 Measurement Circuit 4
11.8 Measurement 8 Measurement Circuit 5
11.9 Measurement 9 Measurement Circuit 5
Set S1=ON, S2=OFF, V1=V2=3.6V and V3=0V under normal condition. Increase V4 from 0V gradually.
The V4 voltage when I1 = 10µA is the CO 'H' voltage (Voh1). Set S1=OFF S2=ON, V1=V2=4.7V, V3=0V,
and V4=9.4V under over voltage condition. (V5)/I2 is the CO pin internal resistance (RCOL).
Set V1=V2=3.6V, and V3=0V under normal condition. Increase V1 from (VCU1-0.2V) to (VCU1+0.2V)
immediately (within 10µs). The time after V1 becomes (VCU1+0.2V) until CO goes 'L' is the overcharge
detection delay time 1 (tCU1). Set V1=V2=3.5V, and V3=0V under normal condition. Decrease V1 from
(VDL1+0.2V) to (VDL1-0.2V) immediately (within 10µs). The time after V1 becomes (VDL1-0.2V) until DO
goes 'L' is the overdischarge detection delay time 1 (tDL1).
Set V1=V2=3.6V, and V3=0V under normal condition. Increase V2 from (VCU2-0.2V) to (VCU2+0.2V)
immediately (within 10µs). The time after V2 becomes (VCU2+0.2V) until CO goes 'L' is the overcharge
detection delay time 2 (tCU2). Set V1=V2=3.6V, and V3=0V under normal condition. Decrease V2 from
(VDL2+0.2V) to (VDL2-0.2V) immediately (within 10µs). The time after V2 becomes (VDL2-0.2V) until DO
goes 'L' is the overdischarge detection delay time 2 (tDL2).
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