R5478N242CD Datasheet PDF - RICOH Li-ION/POLYMER 1CELL PROTECTOR Specs

R5478N242CD - Li-ION/POLYMER 1CELL PROTECTOR

This page provides the datasheet information for the R5478N242CD, a member of the R5475N Li-ION/POLYMER 1CELL PROTECTOR family.

Datasheet Summary

Description

Pin No.

Output of over-discharge detection, CMOS output Pin for charger negative input Output of over-charge detection, CMOS output No Connection Power supply pin, the substrate voltage level of the IC.

Vss pin.

Features

Manufactured with High Voltage Tolerant Process Absolute Maximum Rating.
Low supply current Supply current (At normal mode) C version: (detecting over-discharge) 3０V Typ. ３.0µA Max. 0.1µA D/J/K version: (detecting over-discharge) Typ. 1.2μA/Max. 2.0μA.
High accuracy detector threshold Over-charge detector (Topt=25°C) ±25mV (Topt=-5 to 55°C) ±30mV Over-discharge detector ±2.5% Excess discharge-current detector ±15mV.
Variety of detector threshold Ov.

Datasheet Details

Part number	R5478N242CD
Manufacturer	RICOH
File Size	838.50 KB
Description	Li-ION/POLYMER 1CELL PROTECTOR
Datasheet	R5478N242CD Datasheet
Additional preview pages of the R5478N242CD datasheet.

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Full PDF Text Transcription

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Li-ION/POLYMER 1CELL PROTECTOR R5475N/R5478N SERIES No. EA-291-121009 OUTLINE The R5475N/R5478Nxxxxx Series are high voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion (Li+) / Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit current and Excess discharge-current. Each of these ICs is composed of three voltage detectors, a reference unit, a delay circuit, a short circuit protector, an oscillator, a counter, and a logic circuit. When the over-charge voltage crosses the detector threshold from a low value to a high value, the output of COUT pin switches to low level after internal fixed delay time.

Published: Mar 11, 2015 |