Datasheet Linear Technology LT3517EFE#TRPBF — 数据表

LT3517
Full-Featured LED Driver
with 1.5A Switch Current
Features Description 5000:1 True Color PWM™ Dimming Ratio
nn 1.5A, 45V Internal Switch
nn 100mV High Side Current Sense
nn Open LED Protection
nn Adjustable Frequency: 250kHz to 2.5MHz
nn Wide Input Voltage Range:
nn Operation from 3V to 30V
nn Transient Protection to 40V
nn Operates in Boost, Buck Mode and Buck-Boost Mode
nn Gate Driver for PMOS LED Disconnect
nn Constant-Current and Constant-Voltage Regulation
nn CTRL Pin Provides 10:1 Analog Dimming
nn Low Shutdown Current: 1.5V, VC = 0V
PWM = 0V
SHDN = 0V 6
4.5
0.1 10
1 mA
mA
µA Switching Frequency RT = 16.7k …