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參數資料
| 型號： | MB3874 |
| 廠商： | Fujitsu Limited |
| 英文描述： | DC/DC Converter IC for Parallel Charging |
| 中文描述： | 直流/直流轉換器集成電路的并行充電 |
| 文件頁數： | 1/28頁 |
| 文件大小： | 323K |
| 代理商： | MB3874 |
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DS04-27704-2E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP
For Power Supply Applications (Lithium ion battery charger)
DC/DC Converter IC for Parallel Charging
MB3874/MB3876
I
DESCRIPTION
The MB3874 and MB3876 are parallel charging DC/DC converter ICs suitable for down-conversion, which uses
pulse width modulation (PWM) for controlling the output voltage and current independently.
These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC
adapter in order to keep its power constant (dynamically-controlled charging).
The charging method enables quick charging, for example, with the AC adapter during operation of a notebook PC.
The IC also enable parallel charging, or charging two batteries at the same time, dramatically reducing the charging
time.
With an on-chip output voltage setting resistor which allows the output voltage to be set at high precision, these
ICs are best suited as internal battery chargers for notebook PCs.
The MB3874 support 3-cell battery and the MB3876 support 4-cell battery.
I
FEATURES
Detecting a voltage drop in the AC adapter and dynamically controlling the charge current (Dynamically-con-
trolled charging)
High efficiency
Wide range of operating supply voltages
Output voltage precision
(Built-in output voltage setting resistor )
High precision reference voltage source
: 93 %(In reverse-current preventive diode)
: 7 V to 25 V
:
±
0.8 % (Ta =
+
25
°
C)
: 4.2 V
±
0.8 %
(Continued)
I
PACKAGE
24-pin plastic SSOP
(FPT-24P-M03)
相關PDF資料 |
PDF描述 |
|---|---|
| MB3876PFV | DC/DC Converter IC for Parallel Charging |
| MB3874PFV | DC/DC Converter IC for Parallel Charging |
| MB3876 | DC/DC Converter IC for Parallel Charging |
| MB3875 | DC/DC Converter IC for Charging |
| MB3877 | DC/DC Converter IC for Charging |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MB3874PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Parallel Charging |
| MB3875 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Charging |
| MB3875_03 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Charging |
| MB3875PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Charging |
| MB3876 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Parallel Charging |
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