FS312F-G

FS312F-G-DS-12_EN May 2014 FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y REV. 1.2 Datasheet FS312F-G One Cell Lithium-ion/Polymer Battery Protection IC Fortune Semiconductor Corporation 富晶電子股份有限公司 23F., No.29-5,Sec. 2, Zhongzheng E. Rd., FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Danshui Dist, New Taipei City 251, Taiwan Tel.：886-2-28094742 Fax：886-2-28094874 www.ic-fortune.com 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 Ordering Information FS312F-G PACKAGE TYPE SOT-23-6(G stands for Green-Package) TEMPERATURE RANGE -40°C~+85°C OVERCHARGE PROTECTION 4.25V± 25mV FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y The FS312F-G battery protection IC is designed to protect lithium-ion/polymer battery from damage or degrading the lifetime due to overcharge, overdischarge, and/or overcurrent for one-cell lithium-ion/polymer battery powered systems, such as cellular phones. The ultra-small package and less required external components make it ideal to integrate the FS312F-G into the limited space of battery pack. The accurate ±50mV overcharging detection voltage ensures safe and full utilization charging. The very low standby current drains little current from the cell while in storage. 3. 4.  2. Features  Reduction in Board Size due to Miniature Package SOT-23-6.  Ultra-Low Quiescent Current at 3μA (Vcc=3.9V).  Ultra-Low Power-Down Current at 0.1μA (Vcc=2.0V).  Precision Overcharge Protection Voltage 4.25V ± 25mV  Load Detection Function during Overcharge Mode.  Two Detection Levels for Overcurrent Protection.  Delay times are generated by internal circuits. No external capacitors required. Applications Protection IC for One-Cell Lithium-Ion / Lithium-Polymer Battery Pack 5. Product Name List Package Overcharge detection voltage [VOCP] (V) Overcharge release voltage [VOCR] (V) Overdischarge detection voltage [VODP] (V) Overdischarge release voltage [VODR] (V) Overcurrent detection voltage [VOI1] (mV) FS312F-G FS312F-G 4.2500.025 4.1450.050 2.900.080 3.00.080 15030 Model FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y SOT-23-6 6. Pin Configuration and Package Marking Information Pin No. Symbol Description 1 OD MOSFET gate connection pin for discharge control 2 CS Input pin for current sense, charger detect 3 OC MOSFET gate connection pin for charge control 4 TD Test pin for reduce delay time 5 VCC Power supply, through a resistor (R1) 6 GND Ground pin 6 W Top Point：Lot No. Bottom Point：Year w : week, A~Z & A ~ Z 4 3 12 F 1 . . .. . 3. 1. 2. F 5 2 3 Functional Block Diagram TD 7. VCC Short circuit Detector VSS VSS Oscillator Control Circuit FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Overcharge Detector Over current Detector Overdischarg e Detector Divider Control Logic CS Charger Detector GND OD Typical Application Circuit BATT+ VCC C1 0.1μF FS312F-G GND TD CS OC R1 100 OD 8. VSS OC Control Logic GND VSS R2 1k M1 M2 BATT- 9. Absolute Maximum Ratings (GND=0V, Ta=25°C unless otherwise specified) Symbol Rating Unit Input voltage between VCC and GND * VCC GND-0.3 to GND+10 V OC output pin voltage VOC VCC -24 to VCC +0.3 V OD output pin voltage VOD GND-0.3 to VCC +0.3 V FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y Item CS input pin voltage VCS VCC -24 to VCC +0.3 V Operating Temperature Range TOP -40 to +85 °C Storage Temperature Range TST -40 to +125 °C Note: FS312F-G contains a circuit that will protect it from static discharge; but please take special care that no excessive static electricity or voltage which exceeds the limit of the protection circuit will be applied to it. 10. Electrical Characteristics (Ta=25°C unless otherwise specified) TEST CONDITIONS SYMBOL Min Typ Max UNIT Supply Current VCC=3.9V ICC 3.0 6.0 μA Power-Down Current VCC=2.0V IPD 0.1 μA Overcharge Protection Voltage FS312F-G VOCP 4.225 4.25 4.275 V Overcharge Release Voltage VOCR 4.095 4.145 4.195 V Overdischarge Protection Voltage VODP 2.82 2.90 2.98 V Overdischarge Release Voltage VODR 2.92 3.00 3.08 V Overcurrent Protection Voltage VOIP （VOI1） 120 150 180 mV VSIP （VOI2） 1.00 1.35 1.70 V TOC 200 300 ms FO Fo P R r R ro TU ef pe NE er rti ' en es ce O nl y PARAMETER Short Current Protection Voltage VCC=3.6V Overcharge Delay Time Overdischarge Delay Time VCC=3.6V to 2.0V TOD 40 100 ms Overcurrent Delay Time (1) VCC=3.6V TOI1 10 20 ms Overcurrent Delay Time (2) VCC=3.6V TOI2 5 50 μs -0.7 -0.2 V Charger Detection Threshold Voltage VCHA -1.2 OD Pin Output “H” Voltage VDH VCC-0.1 VCC-0.02 OD Pin Output “L” Voltage VDL OC Pin Output “H” Voltage VCH OC Pin Output “L” Voltage VCL 0. 1 V 0.5 VCC-0.1 VCC-0.02 0.1 V V 0.5 V 11. Description of Operation Normal Condition If VODP