Data Sheet
TPS92365x 65V 2A / 4A Boost / Buck-Boost LED Driver with Inductive Fast Dimming
1 Features
- 4.5V to 65V wide input range
- LED common cathode connection
- Integrated 150mΩ MOSFET with typical 3A / 6.5A / 8.5A current limit
- Optional switching frequency: 100kHz to 2.2MHz
- Spread spectrum for TPS923653 and TPS923655
- Advanced dimming options:
- Analog dimming (256:1)
- Fast PWM dimming (150ns pulse width)
- Hybrid and flexible dimming (2,000:1 at 20kHz PWM, 10,000:1 at 4kHz PWM, 1,000,000:1 at 120Hz PWM)
- CC/CV charging mode
- Full protection features:
- LED open and short protection
- Switching FET open and short protection
- External component failure protection
- Cycle-by-cycle current limit
- Thermal shutdown
- Fault output (open drain)
- Configurable thermal foldback curve
- VSON, WSON and SOT23 package options
2 Applications
- Constant illumination:
- Indoor, outdoor, professional lighting
- Medical, surgical lighting
- Projector, laser TV, printer, IP camera
- Instant illumination:
- Machine vision, camera flash
- Fire alarm, strobe
- CC and CV source:
- LCD backlighting
- Battery charging
- TEC control
Simplified Schematic 