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LM3553SDX/NOPB
1.2A Dual Flash LED Driver System with I2C Compatible Interface
2.2 PH
COUT
4.7 PF
OVP
600 mA Flash
Current
29.25mm2
around large components (IC and L)
2.5COUT
1FEATURES • Multi-Function Pin (RESET and GPIO) Low Profile 12-pin WSON Package Accurate and Programmable LED Current up
(DQB0012A: 3mmx 3mmx 0.8mm, 0.4mmto 1.2Ain 128 Steps• Total Solution Size< 30mm2 90% Peak Efficiency• Drives2 LEDsin Series with 1.2A fromInput• Drives2 LEDsin Series with 600mA fromInput Drives1 LED with 1.2A from 3.0V Input• Adjustable Over-Voltage Protection AllowsSingleor Series LED Operation• Four Operating Modes: Torch, Flash, Indicator,
and Voltage Mode (4.98V) Programmable Flash Pulse Safety TimerSteps for
• TX Input Ensures Synchronization withPower Amplifier Pulseor Prevents LEDOverheating• LED Disconnect During Shutdown• Flash/Imager Synchronization via FEN Pin Active Low Hardware Reset
Typical Application Circuits Figure2. Solution Size
