TPS658623数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

The TPS658623 provides an easy to use, fully integrated solution for handheld devices, integrating multiple regulated power supplies, system management and display functions in a small 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

• INTEGRATED POWER SUPPLIES
- 3 Programmable Step-Down converters
- Software Controlled Enable/Forced PWM Mode
• Automatic Power Saving Mode
• Maximum 1.5A Outputs (SM0 and SM2)Maximum 2.0A Output (SM1)
• 11 Programmable General Purpose LDOs
- 7 With Output Voltages of 1.25V to 3.3V
• 2 With Output Voltages of 0.725V to 1.5V or 1.25V to 2.586V (Factory Configurable)
• 1 “Always On” With Output Voltages of 1.25V to 3.3V
• 1 With Output Voltage of 1.7V–2.475V

• DISPLAY SUPPORT FUNCTIONS
- 4 PWM Outputs With Programmable Frequency and Duty Cycle
• Dual RGB LED Drivers
• Constant Current WLED Driver
- 26.5V (max) at 25mA
• Over-Voltage 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 18V Over-Voltage Protection
• Power Good Monitoring on all Supply Outputs
• Software Reset Function
• Hardware On/Off and Reboot Control
• Momentary Power Loss (MPL) Support
• AUTOBOOT Support
• 11 Channel ADC With 3 Operating Modes
- Single Conversion
• Peak Detection
• Averaging

• APPLICATIONS
• Netbooks
• Portable Navigation Devices
• Portable Media Players