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PDF MB3843 Data sheet ( Hoja de datos )
| Número de pieza | MB3843 | |
| Descripción | Lithium Ion Battery Charger DC/DC Converter IC | |
| Fabricantes | Fujitsu Media Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MB3843 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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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)
1 page  
s BLOCK DIAGRAM
MB3813A/MB3833A/MB3843
5
5 Page 
MB3813A/MB3833A/MB3843
s TYPICAL CHARACTERISTICS
Reference voltage vs. Power supply voltage
5
Vin1 = 20.5 V
CTL = VCC
4 Ta = +25°C
I OR = 0 mA
3
2
1
0
0 5 10 15 20
Power supply voltage VCC (V)
Reference voltage vs. VREF load current
5
Vin1 = VCC
CTL = VCC
4 Ta = +25°C
3
2
1
0
0 10 20 30 40 50
VREF load current I REF (mA)
Reference voltage vs. Temperature
2.0
1.5 VCC = Vin1 = 16 V
CTL = 5 V
1.0
0.5
0.0
–0.5
–1.0
–1.5
–2.0
–40 –20
0 20 40 60
Temperature Ta (°C)
80 100
5
4
3
2
1
0
0
Reference voltage vs. Control voltage
VCC = 16 V
Ta = +25°C
IOR = 0 mA
5 10 15
Control voltage VCTL (V)
20
500
400
300
200
100
0
0
Control current vs. Control voltage
VCC = 16 V
Ta = +25°C
5 10 15
Control voltage VCTL (V)
20
(Continued)
11
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet MB3843.PDF ] | |
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