参数资料
型号: MB3790PFT
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
封装: PLASTIC, TSSOP-20
文件页数: 1/22页
文件大小: 192K
代理商: MB3790PFT
DS04-27502-5E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Supply Applications
Bi-CMOS
Battery Backup IC
MB3790
s DESCRIPTION
The MB3790 is designed to control power supplies to SRAM, logic IC, or other circuit devices and protects them
against momentary power failures by using backup batteries. In addition to its function to supply the power to
these devices, it has a function to switch the source of power to the primary or secondary backup battery when
the power supply voltage drops below a predetermined level. Also, it outputs a reset signal when the power supply
turns on or off or when a fault occurs in the power supply.
Ideally designed as a single-chip IC for power supply control, the MB3790 consumes only a minimal current and
comes in a thin-type package. Therefore, it is best suited for power supply control in memory cards and similar
other devices.
s FEATURES
Input circuit current consumption when non-loaded: 50
A [Typ]
Output drive current: 200 mA [Max]
Resistance between input and output: 0.5 ohms [Typ]
Input power-down detection level: 4.2 V ± 2.5 %
(Continued)
s PACKAGES
* : Since the TSSOP is an extremely thin package, use a partial heating method when mounting the device.
16-pin Plastic SOP
(FPT-16P-M06)
20-pin Plastic TSSOP*
(FPT-20P-M04)
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