描述 Description

The TPS658622B provides an easy-to-use, fully integrated solution for handheld devices, integrating charge management, multiple regulated power supplies, system management, and display functions in a small 6-mm × 6-mm package. The I2C interface enables control of a wide range of subsystem parameters. Internal registers have a complete set of status information, enabling easy diagnostics and host-controlled handling of fault conditions.

特性 Features

? BATTERY CHARGER
- Complete Charge Management Solution for a Single-Cell Li-Ion/Li-Pol Cell With Dynamic Power Management and Thermal Foldback
? Maximum 1-A Charge Current
? Programmable Adapter and USB Charge Operation
? INTEGRATED POWER SUPPLIES
- 3 Programmable Step-Down Converters
- Software-Controlled Enable/Forced PWM Mode
? Automatic Power-Saving Mode
? Maximum 1.5-A Outputs (SM0, SM2)Maximum 2-A Output (SM1)
? 11 Programmable General-Purpose LDOs
- 7 With Output Voltages of 1.25 V to 3.3 V
? 2 With Output Voltages of 0.725 V to 1.5 V or 1.25 V to 2.586 V (Factory Configurable)
? 1 Always On With Output Voltages of 1.25?V to 3.3 V
? 1 With Output Voltage of 1.7 V to 2.475 V

? DISPLAY SUPPORT FUNCTIONS
- 4 PWM Outputs With Programmable Frequency and Duty Cycle
? Dual RGB LED Drivers
? Constant-Current WLED Driver
- 26.5 V (Max.) at 25 mA
? Overvoltage Protection
? Programmable Current-Level and Brightness Control

? HOST INTERFACE
- Interrupt Controller With Maskable Interrupts
? External ADC Triggering and Step-Down Converter Mode Control
? SYSTEM MANAGEMENT
- Dual-Input Power Path
- USB Current Limiting
? Max. 18-V Overvoltage Protection
? Power-Good Monitoring on All Supply Outputs
? Software Reset Function
? Hardware On/Off and Reboot Control
? Momentary Power Loss (MPL) Handling
? AUTOBOOT Feature
? 11-Channel ADC With 3 Operating Modes
- Single Conversion
? Peak Detection
? Averaging

? APPLICATIONS
- Smart Phones
? Portable Navigation Devices
? Portable Media Players
MicroStar BGA is a trademark of Texas Instruments.