MB3813A Datasheet, PDF (1/22 Pages) Fujitsu Component Limited. – Lithium Ion Battery Charger DC/DC Converter IC (High Precision with Constant-current Function)

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-27700-3E
ASSP For Power Management Applications (Secondary battery)
Lithium Ion Battery Charger DC/DC Converter IC
(High Precision with Constant-current Function)
MB3813A/MB3833A/MB3843
s DESCRIPTION
The FUJITSU MB3813A/33A/43 are pulse width modulation (PWM) DC/DC converter ICs 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)