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FS3332

REV. 1.0 FS3332-DS-10_EN JAN. 2007 Datasheet

新型工业化道路FS3332

Two Cell Lithium-ion/Polymer Battery Protection IC

Fortune Semiconductor Corporation

富晶電子股份有限公司

28F., No.27, Sec. 2, Zhongzheng E. Rd.,

Danshui Town, Taipei County 251, Taiwan

Tel.：886-2-28094742

Fax：886-2-28094874

www.ic-fortune

This manual contains new product information. Fortune Semiconductor Corporation reserves the rights to modify the product specification without further notice. No liability is assumed by Fortune Semiconductor Corporation as a result of the use of this product. No rights under any patent accompany the sale of the product.

1. General Description

The FS3332 Series are protection ICs for 2-serial-cell lithium-ion/lithium-polymer rechargeable batteries and include high-accuracy voltage detectors and delay circuits.

These ICs are suitable for protecting 2-cell rechargeable lithium-ion/lithium-polymer battery packs from overcharge, overdischarge, and over-current

2. Features

atp系统

Low supply current

Normal Operation : 7.5μA typ. 14.2μA max.

Power-down mode : 0.3μA typ.

Overcharge detection voltage ﹝VOCU﹞

3.90V~

4.60V, Accuracy of ±25mV

Overcharge release voltage ﹝VOCR﹞

3.60V~

4.60V, Accuracy of ±50mV

Over-discharge detection voltage ﹝VODL﹞

1.70V~

2.60V, Accuracy of ±80mV

Over-discharge release voltage ﹝VODR﹞

1.70V~3.80V, Accuracy of ±100mV

Over current detection voltage ﹝VOI1﹞

0.07V~0.30V, Accuracy of ±20mV

Short circuit detection voltage ﹝VOI2﹞Fixed at 1.0V

Delay times are set by an external capacitor. Each delay time for Overcharge detection,

Over-discharge detection, Over-current detection

are “Proportion of hundred of ten to one”

Two over-current detection levels (protection for short-circuit)

Internal auxiliary over voltage detection circuit (Fail safe for over voltage)

Internal charge circuit for 0 V battery (Unavailable is option)

High-withstanding-voltage devices Absolute maximum rating: 18 V

Wide operating temperature range -40 to +85°C

Wide supply voltage range 2.0 ~ 16V

8-pin TSSOP Pb-free package 3. Ordering Information

*: Refer to the product name list on next page.

4. Applications

Protection IC for 2-Cell Lithium-Ion / Lithium-Polymer Battery Pack

Portable DVD, DSC, PDA, etc.

5. Product Name List

Model Overcharge

detection

voltage

[VOCU] (V)

Overcharge

release

voltage

[VOCR] (V)

Over-discharge

detection

voltage

[VODL] (V)

Over-discharge

release

voltage

[VODR] (V)

Over-current

detection

voltage范安翔

[VOI1] (mV)

数据管理技术

0 V Battery古镇文化公园

Charging

Function

FS3332A 4.250±0.025 4.050±0.050 2.40±0.080 3.00±0.100 200±20 No FS3332B 4.350±0.025 4.150±0.050 2.30±0.080 3.00±0.100 300±20 No

FS3332C 4.350±0.025 4.150±0.050 2.30±0.080 3.00±0.100 300±20 Yes

(Not Available)

FS3332L 4.300±0.025 4.050±0.050 2.00±0.080 3.00±0.100 200±20 No 6. Pin Configuration

Pin No. Symbol Description

1 SENS Detection pin for voltage between SENS and VC (Detection

for overcharge and over-discharge)

2 DO FET gate connection pin for discharge control

3 CO FET gate connection pin for charge control

4 VM Input pin for current sense (Over-current detection pin)

5 VSS

Negative power input pin

6 ICT Capacitor connection pin for detection delay

7 VC

Connection for negative voltage of battery 1 and

positive voltage of battery 2

8 VDD Positive power input pin

7. Functional Block Diagram

党的基本纲领

8. Typical Application Circuit

Figure 2

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