TPS658622A数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

The TPS658622A 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
• 11-Channel ADC With 3 Operating Modes
- Single Conversion
• Peak Detection
• Averaging

• APPLICATIONS
- Smart Phones
• Portable Navigation Devices
• Portable Media Players

2MicroStar BGA is a trademark of Texas Instruments.