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RT9541 Datasheet Li-ion Battery Protector

Manufacturer: Richtek Technology

Overview: Preliminary RT9541 Li-Ion Battery Protector General.

Datasheet Details

Part number RT9541
Manufacturer Richtek Technology
File Size 186.58 KB
Description Li-Ion Battery Protector
Datasheet RT9541-RichtekTechnology.pdf

General Description

The RT9541 Series are protection ICs for overcharge/discharge of rechargeable one-cell Lithium-ion (Li+) batteries by CMOS process.

The RT9541 Series can detect over-charge/discharge of Li+ one-cell and excess load current and charge current, further include a short circuit protector for preventing large external short circuit current.

Each of these ICs is posed of four voltage detectors, a reference unit, a hysteresis circuit, and a bidirectional short circuit protector.

Key Features

  • z Low supply current.
  • Supply current: TYP. 2.0µA.
  • Standby current (after detecting overdischarge): Less than 0.2µA z High accuracy detector threshold.
  • Over-charge detector: ±25mV.
  • Over-discharge detector: ±2.5% z Built-in protection circuit.
  • Excess current trip/Short circuit protector in both charging and discharging direction z Output delay of over-charge adjustable with an external capacitor: 75mS at 0.01µF z Ultra small package: SOT26.

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RT9541 Distributor