Product
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Product Description
The TCS6209 is a constant current, constant voltageLi-lon battery charger controller that uses a current modePWM step-down (buck)switching architecture. With a500kHz switching fequency, the TCS6209 provides asmall, simple and eficient solution to fast charge one(4.2V)or two (8.4V)cell lithium-ion batteries
The TCS6209 charges the battery in three phases:conditioning,constant current,and constant voltage. Anexternal sense resistor sets the charge current with +10%accuracy. An internal resistor divider and precisionreference set the final float voltage to 4.2V per cell with 1%% accuracy. An internal comparator detects the nearend-ofcharge condition while an internal timer sets thetotal charge time and terminates the charge cycle. TheTCS6209 automatically re-starts the charge if the batteryvoltage falls below an internal threshold, 4.05V per cell.
The TCS6209 also automatically enters sleep mode whenDC supplies are removed.
The TCS6209 is available in the 8-lead SOP package.
主要特點(diǎn)
- Wide Input Supply Voltage Range4.8V to 20V-4.2 Version8.9V to 20V-8.4 Version 500kHz Switching Frequency
- End-ofCharge Current Detection Output
- 12 Hour Charge Termination Timer
- +1% Charge Voltage Accuracy+10% Charge Current Accuracy
- Low 10uA Reverse Battery Drain Current
- Automatic Battery Recharge
- Automatic Trickle Charging of Low VoltageBatteries
- Automatic Sleep Mode for Low Power Consumption
- Battery Temperature Sensing
- Stable with Ceramic Output Capacitor
- Support up to 3A Charge Current
- 8-Lead SOP Package
- RoHS Compliant and 100% Lead (Pb)-FreeHalogen-Free
典型應(yīng)用圖
訂購(gòu)資訊
Order Part Number | Package Type | Marking | Operating Temperature Range |
---|---|---|---|
TCS6209 H42 | SOP-8 | xxxxx P8209 1N | -40 °C to +85°C |