TPS68470 Datasheet, PDF (1/105 Pages) Texas Instruments – Power Management Unit with LED Flash Driver and Reference Clock Generation for Compact Camera Module (CCM) Applications

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TPS68470
SLVSCJ1A – SEPTEMBER 2014 – REVISED MARCH 2015
TPS68470 Power Management Unit with LED Flash Driver and Reference Clock
Generation for Compact Camera Module (CCM) Applications
1 Features
• High-Efficiency Buck Converter
– Output Current up to 500 mA
– Output Voltage Selectable: 0.9 V to 1.95 V
• Dual Flash LED Driver
– High-Efficiency Boost Converter
– Adaptive Output Voltage Regulation Based
on LED Vf
– Low Side LED Current Drivers
– Two 1-A Current Drivers
– LED Temperature Monitoring
– Open/Short LED Detection/Protection
– Controlled LED Current Ramp-Up/Down
• Linear Regulator for Sensor Analog Supply
– Output Voltage Programmable from 0.875 V to
3.1 V with 17.8-mV Steps
– Output Current up to 200 mA
• Linear Regulator for IO Supply
– Output Voltage Programmable from 0.875 V to
3.1 V with 17.8-mV Steps
– Output Current up to 50 mA
• Linear Regulator for VCM (Voice Coil Motor)
Driver Power
– Output Voltage Programmable from 0.875 V to
3.1 V with 17.8-mV Steps
– Output Current up to 500 mA
• Linear Regulator for Auxiliary Power
– Output Voltage Programmable from 0.875 V to
3.1 V with 17.8-mV Steps
– Output Current up to 150 mA
• Linear Regulator for Auxiliary Power
– Output Voltage Programmable from 0.875 V to
3.1 V with 17.8-mV Steps
– Output Current up to 50 mA
• Linear Regulator for Sensor IO Supply
– Output Voltage Programmable from 0.875 V to
3.1 V with 17.8-mV Steps
– Output Current up to 150 mA
• Clock Generation
– Programmable PLL
– Crystal Oscillator
• I²C Interface
• 7 GPIOs
• System Reset
1
1
• Operating Temperature Range: 0°C to 85°C
• DSBGA with Package Height of 0.625 mm
2 Applications
• Detachable Ultrabooks
• Tablets
• Smartphones
• Compact Camera Modules (CCM)
3 Description
The TPS68470 device is an advanced power
management unit that powers a Compact Camera
Module (CCM), generates the clock for the image
sensor, drives a dual LED for Flash and incorporates
two LED drivers for general purpose indicators . The
TPS68470 is capable of generating all needed power
rails in a CCM.
The CORE voltage regulator is a state of the art buck
converter which can be used for the image sensor
digital supply. An LDO (LDO_ANA) can be used for
the image sensor analog supply.
The TPS68470 also has a high efficiency boost
converter to support two 1A LED flash drivers. The
LED currents are controlled with regulated low side
current sources.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS68470
DSBGA (56)
3.325 mm x 2.930 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Indicator
LED
Flash
LED(s)
TPS68470
World Facing
Camera
User Facing
Camera
Indicator
LED
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.