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SM6781 Fiches technique(PDF) 1 Page - Nippon Precision Circuits Inc

No de pièce SM6781
Description  Ni-MH/Ni-Cd Battery Charger IC
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Fabricant  NPC [Nippon Precision Circuits Inc]
Site Internet  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM6781 Fiches technique(HTML) 1 Page - Nippon Precision Circuits Inc

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SM6781BV
NIPPON PRECISION CIRCUITS—1
NIPPON PRECISION CIRCUITS INC.
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 (< 1
µA)
I
8-pin VSOP package
ORDERING INFORMATION
PINOUT
(Top view)
PACKAGE DIMENSIONS
(Unit: mm)
Device
Package
SM6781BV
8-pin VSOP
TIME
CHGN
INH
NC
VDD
LEDN
BATT
VSS
TBD


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