NJW4120 - JRC

NJW4120 Lithium-Battery Charger Controller IC with Timer / DMP20 / SSOP20

■PACKAGE OUTLINE NJW4120 is a 1-cell and 2-cell lithium ion battery charge control IC with a built-in AC-DC secondary side control feature. Using a photocoupler to directly feed back optimum charging voltage and current information to the primary side, it increases energy efficiency, makes possible a smaller charger, and conserves energy. Charging current ca.

Features

it has over voltage, over discharge, temperature detection, and a charge over timer. Also, the adaptor and the charge control circuit are mounted on one chip.
■FEATURES
● Charge Control Feedback by Photocoupler
● Adjustable Charge Voltage
● Adjustable Pre-Charge and Full Charge Current
● Temperature Monitor
● Over Charge Timer
● Internal Re-Charge function
● Delay timers and Hysteresis inputs for high noise immunity
● Over Discharge Battery Detect
● Over Voltage Protection
● Bi-CMOS Technology
● Package Outline NJW4120M : DMP20 NJW4120V : SSOP20
■PIN CONFIGURATION P-CHG NFB TX-SW GND PC ADP LE.