TPS65072 Series

Single-chip Power Management IC (PMIC) for navigation systems

Catalog(1 parts)

Part	Type	Function	Supplied Contents	Primary Attributes	Utilized IC / Part	Embedded▲▼
Texas Instruments TPS65072EVM-430 TPS65072 Battery Charger, Power Supply Power Management Evaluation Board	Power Management	Battery Charger, Power Supply	Board(s)	2 LDOs, 3 Step-Down Converters	TPS65072

Key Features

• Charger/Power Path Management:2-A Output Current on the Power PathLinear Charger; 1.5-A Maximum Charge Current100-mA/500-mA/800-mA/1300-mA Current Limit From USB InputThermal Regulation, Safety TimersTemperature Sense Input3 Step-Down Converters:2.25-MHz Fixed-Frequency OperationUp to 1.5 A of Output CurrentAdjustable or Fixed Output VoltageVINRange From 2.8 V to 6.3 VPower Save Mode at Light Load CurrentOutput Voltage Accuracy in PWM Mode ±1.5%Typical 19-µA Quiescent Current per Converter100% Duty Cycle for Lowest DropoutLDOs:Fixed Output VoltageDynamic Voltage Scaling on LDO220-µA Quiescent Current200-mA Maximum Output CurrentVINRange From 1.8 V to 6.3 VwLED Boost Converter:Internal Dimming Using I2CUp to 2 × 10 LEDsUp to 25 mA per String With Internal Current SinkI2C Interface10 Bit A/D ConverterTouch Screen InterfaceUndervoltage Lockout and Battery Fault ComparatorCharger/Power Path Management:2-A Output Current on the Power PathLinear Charger; 1.5-A Maximum Charge Current100-mA/500-mA/800-mA/1300-mA Current Limit From USB InputThermal Regulation, Safety TimersTemperature Sense Input3 Step-Down Converters:2.25-MHz Fixed-Frequency OperationUp to 1.5 A of Output CurrentAdjustable or Fixed Output VoltageVINRange From 2.8 V to 6.3 VPower Save Mode at Light Load CurrentOutput Voltage Accuracy in PWM Mode ±1.5%Typical 19-µA Quiescent Current per Converter100% Duty Cycle for Lowest DropoutLDOs:Fixed Output VoltageDynamic Voltage Scaling on LDO220-µA Quiescent Current200-mA Maximum Output CurrentVINRange From 1.8 V to 6.3 VwLED Boost Converter:Internal Dimming Using I2CUp to 2 × 10 LEDsUp to 25 mA per String With Internal Current SinkI2C Interface10 Bit A/D ConverterTouch Screen InterfaceUndervoltage Lockout and Battery Fault Comparator

Description

The TPS6507x family of devices are single-chip power management ICs (PMICs) for portable applications consisting of a battery charger with power path management for a single Li-Ion or Li-Polymer cell. The charger can either be supplied by a USB port on pinUSBor by a DC voltage from a wall adapter connected to pinAC. Three highly efficient 2.25-MHz step-down converters are targeted at providing the core voltage, memory, and I/O voltage in a processor-based system. The step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents. For low noise applications the devices can be forced into fixed-frequency PWM using the I2C interface. The step-down converters allow the use of small inductors and capacitors to achieve a small solution size. The TPS6507x devices also integrate two general purpose LDOs for an output current of 200 mA. These LDOs can be used to power an SD-card interface and analways-onrail, but can be used for other purposes as well. Each LDO operates with an input voltage range from 1.8 V to 6.3 V allowing them to be supplied from one of the step-down converters or directly from the main battery. An inductive boost converter with two programmable current sinks power two strings of white LEDs. The TPS6507x devices come in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch. The TPS6507x family of devices are single-chip power management ICs (PMICs) for portable applications consisting of a battery charger with power path management for a single Li-Ion or Li-Polymer cell. The charger can either be supplied by a USB port on pinUSBor by a DC voltage from a wall adapter connected to pinAC. Three highly efficient 2.25-MHz step-down converters are targeted at providing the core voltage, memory, and I/O voltage in a processor-based system. The step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents. For low noise applications the devices can be forced into fixed-frequency PWM using the I2C interface. The step-down converters allow the use of small inductors and capacitors to achieve a small solution size. The TPS6507x devices also integrate two general purpose LDOs for an output current of 200 mA. These LDOs can be used to power an SD-card interface and analways-onrail, but can be used for other purposes as well. Each LDO operates with an input voltage range from 1.8 V to 6.3 V allowing them to be supplied from one of the step-down converters or directly from the main battery. An inductive boost converter with two programmable current sinks power two strings of white LEDs. The TPS6507x devices come in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch.