MB3790 - Fujitsu Media Devices

MB3790 Battery Backup IC

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 dr.

Features

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• Input circuit current consumption when non-loaded: 50 µA [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 16-pin Plastic SOP 20-pin Plastic TSSOP
* (FPT-16P-M06) (FPT-20P-M04)
* : Since the TSSOP is an extremely thin package, use a partial heating method when mounting the device. DataSheet4U.com DataSheet 4 U .com www.DataSheet4U.com MB3790 (Continued)
• On-chip power-on reset circuit
• Primary battery voltage-down detection levels: 2.65 V, 2.37 V
• On-chip seconda.