1、 HX1001 1 Features head2right Preset 8.4V Charge Voltage with 1% g450Accuracy head2right Pre-Charging, the Charge Current is adjustable head2right Ideal for Dual-Cellg7088.4Vg709Li-Ion Batteries head2right Constant -Current Charging, the Charge Current is adjustable head2right Constant-Voltage Charg
2、ing head2right Constant-Current/Constant-Voltage Charging with Temperature Monitoring head2right Automatic Recharge head2right Double LEDs Charge Status Indication head2right Available in SOP-8L Package Applications head2right Charger for Li-Ion Coin Cell Batteries head2right Portable MP3 Players, W
3、ireless Headsets head2right Bluetooth Applications head2right Multifunction Wristwatches Description The SX5201 is a complete constant-current/ constant voltage linear charger for cell lithium-ion batteries. Its package and low external component count make the SX5201 ideally suited for portable app
4、lications. The charge current can be programmed externally with a single resistor. SX5201 determines the charge mode by detecting the battery voltage: Pre-charge, constant current charging, constant voltage charging. The charge current of pre-charging and constant current charging is adjustable. The
5、 SX5201 is monitored by temperature monitor during the constant-current and constant-voltage charging. There are two LEDs indicate the charge mode. The SX5201 charger converters are available in the SOP-8L packages (or upon request). High Accuracy Linear Li-Lon Battery Charger SX52012 Typical Applic
6、ation Pin Assignment SOP-8L PIN NUMBER SOP-8L PIN NAME DESCRIPTION 1 CHRG1 Open-Drain Charge Status Output 2 TS Temperature Sense 3 GND Ground 4 VOUT Charge Current Output 5 PDRI Charge Current Monitor and Shutdown Pin 6 CS Charge Current Program 7 CHRG2 Open-Drain Charge Status Output 8 VIN Positiv
7、e Input Supply Voltage. ISET = Vg7080.2g709/RSET AO3407SS34SX5201SX52013 Absolute Maximum Ratings head2right Input Supply Voltage (VIN) . . 8.5V to 9.0V head2right TSg451CHRG1g451CHRG2g451PDRIg451CS . 0.3V to VIN + 0.3V head2right Maximum Junction Temperature 125g263 head2right Operating Ambient Tem
8、perature Range 40g263 to 85g263 head2right Storage Temperature Range 65 g263to 125g263 head2right Lead Temperature (Soldering, 10 sec). 300g263 GDSQ1AO3415RedLEDGreenLEDC110UFC210UFRSET 0R33RTS10KR1360RD1SS24DC+GND GNDBAT+CSVoutGNDTSChrg1Vin14325678PdriChrg2U1R2360RSX5201SX52014 Electrical Character
9、istics Operating Conditions: TA=25 .g263 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IVIN Input Supply Current 0.15 0.7 1.1 mA ISLEEP VIN Sleep Current VIN=7V VOUT=8V 7.8 A IIV(VOUT) Input bias current on VOUT pin VOUT=8.4V 10 65 A Battery Voltage Regulation Constant-current Charge VO(REG) Output
10、voltage 8.317 8.4 8.484 V Vg708CSg709 Current regulation threshold Voltage at pin CS , relative to VIN 180 200 220 mV Precharge Comparator V(min) Precharge threshold 5.6 6 6.2 V Precharge Current Regulation Voltage at pin CS, relative to VIN, RSET =1. 18 mA I(PRECHG) Precharge current regulation Vol
11、tage at pin CS, relative to VIN, RSET =1.g712VIN=9V 10 35 mA VRCH comparatorg708Battery Recharge Thresholdg709 Vg708RCHg709 Recharge threshold VO(REG) -400mV V STAT Pin VOL(STAT) Outputg708lowg709voltage IOL =10mA 1.5 V VOH(STAT) Outputg708highg709voltage IOH =5mA VIN-2 V SX52015 Application Informa
12、tion PIN ASSIGNMENT CHRG1 (Pin 1): Charge Status Indication. When the battery is charging, the CHRG1 pin is pulled low. When the charge cycle is completed or reverse battery lockout / No AC is detected, CHRG is forced high impedance. The battery is not working properly or when the temperature exceed
13、s the set range, output 50% duty cycle of 2Hz pulse, the PIN is available through 330 ohm resistors and indicates that the light-emitting diode connected. TS (Pin 2): Temperature Sense. GND (Pin 3): Ground. VOUT (Pin 4): Charge Current Output. It should be bypassed with at least a 10uF capacitor. It
14、 provides charge current to the battery and regulates the final float voltage to 8.4V. PDRI (Pin 5): Driving side. Connect to the grid of the PMOS. CHRG2 (Pin 7): End-of-Charge Status Indication. When the battery is charging, the CHRG2 pin is forced high impedance. When the charge cycle is completed
15、, CHRG2 is pulled GND. VIN (Pin 8): Positive Input Supply Voltage. It Provides power to the charger VIN and should be bypassed with a 10uF capacitor. CS (Pin 6): Charge Current Program, Charge Current Monitor and Shutdown Pin. The charge current is programmed by connecting a resistor, RSET, ISET = V
16、g708CSg709/RSET. SX52016 Packaging Information SOP-8 Package Outline Dimension Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.350 1.750 0.053 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.006 0.010 D 4.700 5.100 0.185 0.200 E 3.800 4.000 0.150 0.157 E1 5.800 6.200 0.228 0.244 e 1.270(BSC) 0.050(BSC) L 0.400 1.270 0.016 0.050 0 8 0 8 SX5201
