Fujitsu MB3893A
MB3893A is a multi-function power management IC chip with built-in 4-channel series regulator providing the output control functions and power supply drop detection circuits required for mobile phones. The MB3893A includes lithium-ion battery charge control functions and functions as a built-in power management system ideal for mobile phone devices.APPLICATIONS
(Mobile Phones) Power Management IC for Mobile Phone MB3893A sDESCRIPTION
sFEATURES
[Power Supply Control Unit]● Supply voltage range : VCC = 3.1 V to 4.8 V
● Low power consumption current during standby : 110 µA (Max.)
● Built-in 4-channel low-saturation voltage type series regulator : 2.5 V/2 channels, 1.8 V/1 channels, 2.0 V/1 channels (1.9 V and 2.2 V available as mask options)
● Built-in interruption detection and supply recovery functions eliminate need for supplementary power supply
● Built-in On/Off switch circuit with accidental operation prevention function
● Accurate supply voltage drop detection
● Built-in power-on reset (OUT1) function
● Detection voltage with hysteresis [Charge Control Unit]
● Supply voltage range : VIN = 3.4 V to 5.9 V
● Built-in lithium-ion battery charge control functions
● Charging voltage : 4.1 V/4.2 V (switchable)
● Built-in preliminary charging function
● Built-in re-charging function
● Built-in timer functions
● Built-in battery te...