MAX8939 Datasheet PDF | Maxim Integrated

Maxim Integrated MAX8939

the MAX8939 or 850mARMS max for the MAX8939A/MAX8939B) Programmable Top-Off Current Threshold Proprietary Die Temperature Regulation Control 4.1V to 10V Input Voltage Range (MAX8939) 4.1V to 6.25V Input Voltage Range (MAX8939A/ MAX8939B) with Input Overvoltage Protection Up to 28V Low-Dropout Voltage (300mV at 500mA) Input Power-Source Detection Output Input Overvoltage Protected 4.75V Output (SAFE_OUT) from IN Charge Current Monitor Output Indicator LED Hardware Input Enable 5s Watchdog Feature During Charge S Four Low-Noise LDOs 1x 400mA, 2 x 200mA and 1x 100mA Output Current High 65dB...

Part No.	MAX8939
Datasheet	MAX8939 Download
Manufacturer	Maxim Integrated
Description	System Power Management
Buy	Stock & Price

GENERAL DESCRIPTION

The MAX8939/MAX8939A/MAX8939B power management ICs contain the necessary supplies and features for supporting cell phone designs based on the Intel Mobile Communications (IMC) 61XX 3G platform. Designed to power all peripheral components in the platform, the ICs also provide the necessary signals to control the 61XX baseband processor. The integrated lithium-ion (Li+) charger is protected up to 28V input and features a protected output voltage for supply of a USB transceiver. Proprietary thermalregulation circuitry limits the die temperature during fast-charging or when the ICs are exposed to high ambient temperatures, allowing maximum charging current without damaging the ICs. A dedicated current regulator is included for driving a charge indicator LED. Four programmable low-noise, low-dropout linear regulators (LDOs) provide the supply for noise sensitive peripherals. A high power vibrator driver is I2C programmable in 70 PWM levels and 4 output voltages. The ICs...