AS3653 Datasheet | austriamicrosystems

Power Management Unit for Mobile Phones General Description The AS3653 device is a highly integrated solution for power supply generation and monitoring, battery management including charging and SIM card munication. It is controlled via a serial control interface and integrates all necessary system specific functions such as clock, reset and interrupt generation, voltage and temperature monitoring, accessory detection and On/Off control. PRODUCT BRIEF - 2 General Purpose Pulse Width Modulator (PWM) Outputs with programmable frequency and duty cycle - 2 General Purpose LED Pattern Generator Outputs with programmable pattern and repetition period - 8 General Purpose Input / Output Pins - - - - - - Wide Battery Supply Range 3.0…5.5V Serial Control Interface On-Chip Bandgap Tuning for High Accuracy (±1%) Excess Current and Thermal Protection 0.35µm CMOS Solution QFN48 package Key Features Supply Voltage Generation - 1 Analogue High Current LDO (1.85…3.4V, 250mA) - 1 Analogue Low Noise LDO (1.85…3.4V, 150mA) - 1 Analogue Low Noise LDO (1.85…3.4V, 100mA) - 2 RF Low Noise LDOs (1.85…3.4V, 100mA) - 1 Analogue Low Noise LDO (1.85…3.4V, 10mA) - 3 Digital Low Power LDOs (150mA) - 1 SIM Card Supply LDO (1.8 / 3.0V, 20mA) - 1 Low Noise, High PSRR Microphone Bias Generator plete Chemistry Independent Charger - Autonomous Trickle Charge Mode with 60min Timeout - Programmable Constant Current Charging - Programmable Constant Voltage / Pulse Charging - Integrated Gas Gauge - Overvoltage protection: Battery and Charger Voltage - Operation without battery - Battery presence indication - Programmable backup battery charger SIM Card Interface - Transparent SIM Card Interface with signal level translators and enhanced ESD protection System Control - Clock Generation...