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SLVSAJ2 – AUGUST 2010
Advanced Power Management Unit
1
INTRODUCTION
1.1
MAIN FEATURES
12
Max 18V Over-Voltage Protection
INTEGRATED POWER SUPPLIES
– Power Good Monitoring on all Supply
– 3 Programmable Step-Down converters
Outputs
Software Controlled Enable/Forced PWM
– Software Reset Function
Mode
– Hardware On/Off and Reboot Control
Automatic Power Saving Mode
– 11 Channel ADC With 3 Operating Modes
Maximum 1.5A Outputs (SM0 and SM2)
Single Conversion
Maximum 2.0A Output (SM1)
Peak Detection
– 11 Programmable General Purpose LDOs
Averaging
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)
1.2
APPLICATIONS
1 “Always On” With Output Voltages of
Netbooks
1.25V to 3.3V
Portable Navigation Devices
1 With Output Voltage of 1.70V–2.475V
Portable Media Players
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
1.3
DESCRIPTION
The TPS658621C 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 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.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
I2C is a trademark of NXP B. V Corporation.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.