SM6781BV 데이터 시트보기 (PDF) - Nippon Precision Circuits

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SM6781BV

Ni-MH/Ni-Cd Battery Charger IC

Nippon Precision Circuits  

NIPPON PRECISION CIRCUITS INC.

SM6781BV

Ni-MH/Ni-Cd Battery Charger IC

OVERVIEW

The SM6781BV is a quick charge control IC for Nickel Metal Hydride (NiMH) and Nickel-Cadmium (NiCd)

rechargeable batteries. Quick charging ends in response to negative delta voltage detection (–∆V) and maxi-

mum charging time detection functions. Also, quick charge mode is placed on hold if the battery voltage

becomes abnormal, until normal conditions are restored. The SM6781BV requires few external components to

realize a high-stability quick charge battery charger.

FEATURES

I Ni-MH/Ni-Cd battery quick charge control

I −∆V and maximum charge time cutoffs

I 15min (typ) −∆V detection invalid time

I – 4mV (typ) −∆V detection accuracy

I Inhibit function

I Charge condition LED indicator output

(on, pulsed, off)

I Low power dissipation standby mode (< 1µA)

I 8-pin VSOP package

ORDERING INFORMATION

PINOUT

(Top view)

TIME

LEDN

BATT

VSS

CHGN

INH

NC

VDD

Device

SM6781BV

Package

8-pin VSOP

PACKAGE DIMENSIONS

(Unit: mm)

TBD

NIPPON PRECISION CIRCUITS—1

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