onsemi FL7760 CCM Buck Controllers
onsemi FL7760 CCM Buck Controllers are step-down controllers designed to adapt hysteretic reference architecture. This hysteretic reference architecture regulates LED current by sensing voltage across the external high-side sense resistor. By implementing hysteretic LED current control, the FL7760 buck controller stabilizes the LED current against input voltage and output load transient condition. These FL7760 Continuous Conduction Mode (CCM) controllers feature wide input range, high switching frequency, high source/sink current, and cycle-by-cycle peak current limit. FL7760 controllers implement analog dimming and PWM through a DIM pin and provide Undervoltage Lockout (UVLO) and Thermal Shutdown (TSD) protections. FL7760 controllers have low-reference voltage to maximize system efficiency and can minimize system profile in wide-scale power ranges through its high-frequency driving capability. onsemi FL7760 CCM buck controllers are ideal for LED lighting systems.Features
- 8VDC to 70VDC wide input range
- Continuous Conduction Mode (CCM) operation
- Hysteretic LED current control
- Wide analog dimming range
- Wide PWM dimming duty range
- Up to 1MHz high switching frequency
- 1.5A/2.5A high source/sink current
- Cycle-by-cycle peak current limit
- 300µA low operating current
- 240µA low standby current
- Thermal Shutdown (TSD)
- Undervoltage Lockout (UVLO)
Schematic
Videos
Publicado: 2018-08-30
| Actualizado: 2023-01-27
