onsemi NCL30105
The NCL30105 is a peak current controlled fixed off time controller designed for LED driver applications in which the LEDs are operated in deep Continuous Conduction Mode (CCM) without requiring slope compensation. Featuring an adjustable off time generator, the controller can drive a MOSFET up to a 500 kHz switching frequency. The soft−start pin creates a startup sequence that slowly ramps up the peak current and enables the adjustment of the peak current setpoint for analog dimming control.| Part No. | NCL30105 |
|---|---|
| Datasheet | NCL30105 Download |
| Manufacturer |  onsemi |
| Description | Constant Off Time PWM Current-Mode Controller |
| Buy | Stock & Price |
APPLICATIONS
A dedicated dimming pin enables the use of a pulse−width modulated logic signal to dim the LEDs directly. The device features robust protection features to detect switch overcurrent faults and to detect maximum on time events.FEATURES
● Constant Off Time Current−Mode Control Operation● Adjustable Off Time (0.5 ms to 10 ms)
● Internal Leading Edge Blanking
● Source 250 mA / Sink 500 mA Peak Drive Capability
● ±3.2% Current Sense Accuracy at 25°C
● Internal Startup Delay
● 3.3 V Logic Level Dimming Input
● This is a Pb−Free Device Safety
FEATURES
● Thermal Shutdown● Maximum On Time Protection
● Overcurrent Protection Typical Application
● LED Backlight Drivers for LCD Panels
● LED Light Bars
● LED Street Lighting
● LED Bulbs 8 1 SOIC−8 D SUFFIX CASE 751 MARKING DIAGRAM 8 L0105 ALYW G 1 L0105 A L Y W G = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package PIN CONNECTIONS 1 toff DIM NC SSTART VCC GND CS DRV (Top View) ORDERING INFORMATI...
