ACT3704NH-T データシートの表示（PDF） - Active-Semi, Inc

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ACT3704NH-T

12V Linear-Mode Battery Charger for Li+/Li-polymer Cells

Active-Semi, Inc 

ORDERING INFORMATION

PART NUMBER

ACT3704YH

ACT3704YH-T

ACT3704NH-T

TEMPERATURE RANGE

-40°C to 85°C

-40°C to 85°C

-40°C to 85°C

PIN CONFIGURATION

ACT3704

Rev2, 26-Jul-07

PACKAGE

SOP-8/EP

SOP-8/EP

TDFN33-8

PINS

8

8

8

PACKING

TUBE

TAPE & REEL

TAPE & REEL

PIN DESCRIPTIONS

PIN NUMBER

1

2

3

4

5

6

7

8

EP

PIN NAME

nEOC

ADJ

IN

ISET

TIMER

BAT

G

nSTAT

EP

PIN DESCRIPTION

Open-Drain Charge Status Indicator. nEOC is a high voltage output and can with-

stand up to 12V, allowing it to drive LEDs that are directly connected to IN or to a

lower voltage supply. nEOC features an internal 7mA current limit, allowing this

pin to directly drive an LED for a visual charge-status indicator. For a logic-level

charge status indicator, simply connect a 10kΩ or greater pull-up resistor between

nEOC and a suitable voltage supply.

Charge Termination Voltage Adjust. Connect ADJ to G to select 4.10V termination

voltage or connect ADJ to IN to select 4.20V termination voltage.

Power Input. IN can be withstand operating voltages of up to 12V. Bypass to G

with a 1µF or larger capacitor.

Charge Current Set. Program the maximum charge current by connecting a resis-

tor (RISET) between ISET and G. See the Charge Current Programming section for

more information.

Safety Timer program pin. Connect to capacitor CTIMER.

Charge Battery Output. Connect this pin to the positive terminal of the battery.

Bypass this pin as close as possible to IC with 1µF ceramic capacitor.

Ground.

Open-Drain Charge Status Indicator. nSTAT can withstand up to 12V, allowing it

to drive LEDs that are directly connected to IN or to a lower voltage supply,

nSTAT features an internal 7mA current limit, allowing this pin to directly drive an

LED for a visual charge-status indicator. For a logic-level charge status indicator,

simply connect a 10kΩ or greater pullup resistor between nSTAT and a suitable

voltage supply.

Exposed Pad. The exposed thermal pad should be connected to board ground

plane and G. The ground plane should include a large exposed copper pad under

the package to connect the entire pad for thermal dissipation (see package out-

line).

Innovative Products. Active Solutions.

-2-

www.active-semi.com

Copyright © 2007 Active-Semi, Inc.

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