Size: 25*17*5mm (length*width*height)
Input voltage: DC 5-18V(actual 5-12V is appropriate)
Charging status: full and no-load blue light, red during charging
The voltage setting must be operated in the power-off state, and the switch must be disconnected before switching.
Can also be used for white LED constant current drive: set a single lithium drive one, set dual lithium drive two strings
Characteristic:
1. Dual / single 8.4V / 4.2V lithium battery charging
2. Built-in power MOSFET, switch mode, low device heat, simple external
3. Programmable charge current, 0.1-2A
4. Programmable precharge current, 10%-100%
5. No need for an external anti-sinking schottky diode
6. Wide operating voltage up to 18V
7. Red and green LED charge status indication
8. Chip temperature protection, over-current protection, under-voltage protection
9. Battery temperature protection, reverse battery shutdown, short circuit protection
10. Switching frequency 400KHz, available inductance 20uH and above
11. PWR_ 0N-power, battery-powered switching control
12. Less than 1% charge voltage control accuracy
13. Trickle, constant current, constant voltage three-stage charging to protect the battery
14. Using QFN16 4mm*4mm ultra small package
Absolute maximum rating:
1. Static input supply voltage (vin): 20V
2. BAT: -8.4V~20V
3. BAT short circuit duration: continuous
4. Maximum junction temperature: 120℃
5. Working environment temperature range: -40℃~85℃
6. Storage temperature range: -65℃~125℃
7. Pin temperature (welding time 10 seconds): 260’℃
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