Datasheet for the BRCL4058ESE linear charger IC with up to 1.2 A programmable current and built‑in protection features.
The BRCL4058ESE is a linear charger IC for single‑cell lithium‑ion or lithium‑polymer batteries. It integrates power transistors, eliminating the need for external current‑sense resistors or blocking diodes, and offers programmable charging current up to 1.2 A.
The device includes input over‑voltage protection, under‑voltage lockout, automatic recharge, reverse‑polarity protection, temperature compensation, and status indication. It operates from 4.5 V‑6.0 V supply, supports up to 30 V input, and enters a low‑power sleep mode with less than 2 µA standby current.
| Programmable charging current | up to 1.2 A |
|---|---|
| Charging voltage | 4.2 V ±1 % |
| Maximum input voltage | 30 V |
| Input supply voltage range | 4.5 V – 6.0 V |
| Sleep mode current | < 2 µA |
| Operating ambient temperature | -40 °C to 85 °C |
| Reverse‑polarity protection | Enabled |
The device can deliver a programmable charging current up to 1.2 A.
Charging current is set by an external resistor connected between the PROG pin and ground, using the formula RPROG (kΩ) = 1200 / I‑BAT (mA).
It includes input over‑voltage protection, under‑voltage lockout, reverse‑polarity protection, temperature‑based current reduction, and automatic recharge.
In sleep mode the battery current consumption is less than 2 µA.