The C4050 is a Qipan Microelectronics battery‑management IC that integrates charging and boost functions for portable backup power, supporting up to 1.5 A…
The C4050 integrates charging and boost functions in a single chip for mobile backup power applications. It provides three charging stages—trickle, constant‑current, and constant‑voltage—and includes over‑temperature and over‑current protection.
The device uses an asynchronous boost architecture to deliver up to 7 W of power, supports load detection for low‑power mode, and drives four LED indicators for charge‑level display. It is packaged in a lead‑free QFN 3 mm × 3 mm 16‑lead package and complies with RoHS standards. This manual is written in Chinese.
| Charging voltage range | 4.5 V – 5.5 V |
|---|---|
| Maximum charge current | 1.5 A |
| Boost maximum output power | 7 W |
| Boost output voltage (max) | 18 V |
| Boost output current (5 V mode) | 1.2 A |
| Integrated MOSFET rating | 3 A, 18 V |
| Boost efficiency | 85 % |
| LED indicator count | 4 (5 mA each) |
| Package | QFN 3 mm × 3 mm 16‑lead |
| RoHS compliance | Yes |
The C4050 can charge at up to 1.5 A.
It can drive four LEDs, each limited to 5 mA.
The boost stage can deliver up to 7 W of power.
It is housed in a lead‑free QFN 3 mm × 3 mm 16‑lead package.