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參數資料
| 型號： | MB3878PFV |
| 廠商： | FUJITSU LTD |
| 元件分類： | 穩壓器 |
| 英文描述： | DC/DC Converter IC for Charging |
| 中文描述： | 0.5 A BATTERY CHARGE CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | PLASTIC, SSOP-24 |
| 文件頁數： | 1/24頁 |
| 文件大小： | 283K |
| 代理商： | MB3878PFV |
DS04-27706-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP
For Power Supply Applications (Secondary battery)
DC/DC Converter IC for Charging
MB3878
I
DESCRIPTION
The MB3878 is a DC/DC converter IC suitable for down-conversion, using pulse-width (PWM) charging and
enabling output voltage to be set to any desired level from one cell to four cells.
These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC
adaptor in order to keep its power constant (dynamically-controlled charging).
The charging method enables quick charging, for example, with the AC adaptor during operation of a notebook PC.
The MB3878 provides a broad power supply voltage range and low standby current as well as high efficiency,
making it ideal for use as a built-in charging device in products such as notebook PC.
I
FEATURES
Detecting a voltage drop in the AC adaptor and dynamically controlling the charge current
(Dynamically-controlled charging)
Output voltage setting using external resistor
High efficiency
Wide range of operating supply voltages
Output voltage setting accuracy
Built-in frequency setting capacitor enables frequency setting using external resistor only
Oscillator frequency range
Built-in current detector amplifier with wide in-phase input voltage range : 0 V to Vcc
In standby mode, leave output voltage setting resistor open to prevent inefficient current loss
Built-in standby current function
Built-in soft start function
Built-in totem-pole output stage supporting P-channel MOS FETs devices
: 1 cell to 4 cells
: 94
%
: 7 V to 25 V
: 4.2V
±
0.8% (per cell)
: 100kHz to 500kHz
: 0
μ
A (standard)
I
PACKAGE
24-pin plastic SSOP
(FPT-24P-M03)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MB3879 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Parallel Charging of 3/4 cell Li-ion & NiMH Batteries |
| MB3879PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:DC/DC Converter IC for Parallel Charging of 3/4 cell Li-ion & NiMH Batteries |
| MB3879PFV-G-BND(E1) | 制造商:Fujitsu 功能描述: |
| MB3881 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down |
| MB3881PFF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down |
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