MB3813 データシートの表示（PDF） - Fujitsu

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MB3813

Lithium Ion Battery Charger DC/DC Converter IC (High Precision with Constant-current Function)

Fujitsu 

FUJITSU SEMICONDUCTOR

DATA SHEET

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DS04-27700-2E

ASSP For Power Supply Applications (Lithium-

ion Battery Chargers)

DC/DC Converter IC (High Precision

with Constant-current Function)

MB3813A/MB3833A/MB3843

s DESCRIPTION

The FUJITSU MB3813A/33A/43 is a pulse width modulation (PWM) DC/DC converter IC with independent output

voltage and current setting capability.

The use of on-chip output setting resistance enables high precision output voltage control. Also, an output voltage

switching feature for use with either graphite-electrode or coke-electrode lithium-ion batteries makes this IC ideal

for internal battery chargers in notebook personal computers and similar applications.

Cell count

3-cell

2-cell

1-cell

Output voltage

12.6 V/12.3 V

8.4 V/8.2 V

4.2 V/4.1 V

MB3813A

MB3833A

MB3843

Part number

s FEATURES

• Output setting resistance is on-chip for high precision output voltage: ±1.0%

• SEL pin enables output voltage selection

• High precision reference voltage source: 2.5 V ± 1.0%

• High frequency operating capability: max. 500 kHz

• On-chip current detector amplifier with wide in-phase input voltage range: 0 V to VCC

s PACKAGE

16-pin Plastic SSOP

(Continued)

(FPT-16P-M05)

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