SM6781BV Datasheet, PDF (1/10 Pages) Nippon Precision Circuits Inc – Ni-MH/Ni-Cd Battery Charger IC

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