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APW7713
Active
1.5MHz PMIC for Battery Powered System with I2C Controller
Features
Charger
- Programmable Input Current Limit : 100mA, 500mA, 900mA, 1300mA, 1700mA, 2100mA, 2500mA
- Battery Charge Preconditioning
- Charge Termination and Recharge
- ±7% Charge Current Regulation
- ±7.5% Input Current Regulation
- Thermal Shutdown
- Input Over-Voltage Protection
- MOSFET Over-Current Protection
Voltage Rail
- DC2: 0.6V - 3.3V at 1.5A
- DC3: 0.6V - 3.3V at 1A
- DC4: 0.6V - 3.3V at 2A
- LDO1 0.6V - 3.3V, 150mA, Reference=0.6V
- LDO2 1.5V - 3.05V, 300mA, Controlled by I2C
General Description
The APW7713 is a Power Management IC (PMIC) with a battery powered system designed to provide complete Power Management solution for the camera applications. The IC operates from a single supply voltage of 2.7V to 6.0V allowing it to be used in Adapter/USB or 1 Cell battery applications. The APW7713 is designed to provide maximum number of regulators in the smallest available cost effective package. Included in the IC are: One selectable linear mode or switch mode charger; Four switching Buck converters for DC1/DC2/DC3/DC4, Three LDOs for Image Signal Process and RTC applications, and Two Load Switch Enable Signal Control for Wi-Fi, DRAM applications. For Charger part, when the input current limit or voltage limit is reached, the power path management automatically reduces the charge current to zero. As the system load continues to increase, the power path discharges the battery until the system power requirement is met. This supplement mode operation prevents overloading the input source. The devices initiate and complete a charging cycle without software control. It automatically detects the battery voltage and charges the battery in three phases: pre-conditioning, constant current and constant voltage. At the end of the charging cycle, the charger automatically terminates when the charge current is below a preset limit in the constant voltage phase. When the full battery falls below the recharge threshold, the charger will automatically start another charging cycle. The device provides various safety features for battery charging operation, including a pack negative thermistor monitoring, charging safety timer and over-voltage/over-current protections. For the other VRs, the IC is equipped with all the standard protection features such as current limit, over voltage and internal under voltage lock out protection as well as thermal shutdown. The serial interface is an I2C communication interface which allows supply sequencing as well as controlled margining of ramp up and ramp down of all supplies to optimize battery power consumption. The I2C interface also allows for
adjustability of VRs’ voltage and Forced PWM Mode in default operation and Auto PSM/PWM Mode in OFF mode state. Also, the power sequenc is defined by strobes and delay times under I2C Control. The device is available in a 40-pin, 5x5 mm2 thin QFN package for best thermal performance while optimizing the cost.
Features
Charger
- Available in Linear Mode or Switch Mode Charge
- High Efficiency 1.5A at Switch Mode Charge
- Single Input USB-compliant/Adapter Charge
- Programmable Input Current Limit : 100mA, 500mA, 900mA, 1300mA, 1700mA, 2100mA, 2500mA
- 4V-6V Input Operating Voltage Range
- 1.5MHz Switching Frequency for Low Profile Inductor
- Autonomous Battery Charging with or without Host Management
- Battery Charge Preconditioning
- Charge Termination and Recharge
- High Accuracy
- ±7% Charge Current Regulation
- ±7.5% Input Current Regulation
- Safety
- Thermal Shutdown
- Input Over-Voltage Protection
- MOSFET Over-Current Protection
Voltage Rail
- Provide 4 Buck Single Phase PWM Converters
- DC2: 0.6V - 3.3V at 1.5A
- DC3: 0.6V - 3.3V at 1A
- DC4: 0.6V - 3.3V at 2A
- Provide 3 LDO Output
- LDO1 0.6V - 3.3V, 150mA, Reference=0.6V
- LDO2 1.5V - 3.05V, 300mA, Controlled by I2C
- Provide 2 Load Switches Enable Signal
- 30µA Low Battery Leakage Current
- 1µA Low Battery Leakage Current in Shipping Mode
- Integrated ADC for System and Battery Monitor
- Always-On Push Bottom Monitor
- TQFN 5x5-40A Package
General Description
The APW7713 is a Power Management IC (PMIC) with a battery powered system designed to provide complete Power Management solution for the camera applications. The IC operates from a single supply voltage of 2.7V to 6.0V allowing it to be used in Adapter/USB or 1 Cell battery applications. The APW7713 is designed to provide maximum number of regulators in the smallest available cost effective package. Included in the IC are: One selectable linear mode or switch mode charger; Four switching Buck converters for DC1/DC2/DC3/DC4, Three LDOs for Image Signal Process and RTC applications, and Two Load Switch Enable Signal Control for Wi-Fi, DRAM applications. For Charger part, when the input current limit or voltage limit is reached, the power path management automatically reduces the charge current to zero. As the system load continues to increase, the power path discharges the battery until the system power requirement is met. This supplement mode operation prevents overloading the input source. The devices initiate and complete a charging cycle without software control. It automatically detects the battery voltage and charges the battery in three phases: pre-conditioning, constant current and constant voltage. At the end of the charging cycle, the charger automatically terminates when the charge current is below a preset limit in the constant voltage phase. When the full battery falls below the recharge threshold, the charger will automatically start another charging cycle. The device provides various safety features for battery charging operation, including a pack negative thermistor monitoring, charging safety timer and over-voltage/over-current protections. For the other VRs, the IC is equipped with all the standard protection features such as current limit, over voltage and internal under voltage lock out protection as well as thermal shutdown. The serial interface is an I2C communication interface which allows supply sequencing as well as controlled margining of ramp up and ramp down of all supplies to optimize battery power consumption. The I2C interface also allows for
adjustability of VRs’ voltage and Forced PWM Mode in default operation and Auto PSM/PWM Mode in OFF mode state. Also, the power sequenc is defined by strobes and delay times under I2C Control. The device is available in a 40-pin, 5x5 mm2 thin QFN package for best thermal performance while optimizing the cost.
