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TPS61310YFFR
1.5A Multiple LED Camera Flash Driver with I2C Compatible Interface
VOUT
AVIN
LED1
STRB0
NRESET
2.5 V to
5.5 V
10 mF D1 D2
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4.7 mF
2.2 mH
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TPS61310, TPS61311SLVS978D –MARCH 2010–REVISED SEPTEMBER 2016
TPS6131x 1.5-A Multiple LED Camera Flash and Video Light Driver
WithI2C Compatible Interface Features Operational Modes: Video Light and Flash Strobe Voltage Regulated Converter: 3.8Vto 5.7V
With Down Mode Standby:2 µA (Typical) LEDVF Measurement Power-Save Mode for Improved Efficiencyat Low
Output Power, Upto 95% EfficiencyI2C Compatible Interfaceupto 3.4 Mbps Dual Wire Camera Module Interface Zero Latency Tx-Masking Input Hardware Reset Input Privacy Indicator LED Output GPIO and Power Good Output Various Safe Operation and Robust Handling
Features: LED Temperature Monitoring Open and Shorted LED Detection and
Protection Integrated LED Safety Timer Automatic Battery Voltage Droop Monitoring
and Protection Smooth LED Current Ramp-Up and Ramp-
Down Undervoltage Lockout Total Solution Sizeof Less Than 25 mm2 Availableina 20-Pin NanoFree™ DSBGA
Package
Applications Single, Dual,or Triple White LED Flash Supply for Smart-Phones Video Applications Applications
DescriptionThe TPS6131x familyisan integrated solution witha
wide feature set for driving upto three LEDs for still-
camera flash strobe and video-camera lighting
applications. It is based on a high efficiency
synchronous boost topology with combinable current
sinksto drive upto three white LEDsin parallel. The
2-MHz switching frequency allows the useof small
and low-profile 2.2-µH inductors. To optimize overall
efficiency, the device operates witha low LED-
feedback voltage and regulated output-voltage
adaptation.
The device integrates a control scheme that
automatically optimizes the LED current flash budgeta functionof the battery voltage condition.
The TPS6131x not only operates asa regulated
current source, but alsoasa standard voltage boost
regulator. The device enters power-save mode
operation at light load currents to maintain high
efficiency over the entire load current range. These
operating modes can be usefulto supply other high
power devicesin the system (for example,a hands-
free audio PA). simplify video light and flash synchronization with
the camera module, the device offersa dedicated
control interface (STRB0, STRB1) for zero
LED turnon time.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Application
