Datasheet Analog Devices LTM8040IV#PBF — 数据表

LTM8040
36V, 1A µModule
LED Driver and Current Source
FEATURES DESCRIPTION n The LTM®8040 is a fixed frequency 1A step-down DC/DC
μModule® regulator designed to operate as a constant current source. Internal circuitry monitors the output current
to provide accurate current regulation, which is ideal for
driving high current LEDs. High output current accuracy
is maintained over a wide current range, from 35mA to
1A, allowing a wide dimming range over an output voltage range of 2.5V to 13V. Unique PWM circuitry allows a
dimming range of 250:1, avoiding the color shift normally
associated with LED current dimming. n True Color PWM™ Delivers Constant Color with
250:1 Dimming Ratio
Wide Input Range: 4V to 36V
Up to 1A LED Current
Adjustable Control of LED Current
High Output Current Accuracy is Maintained Over a
Wide Range from 35mA to 1A
Open LED and Short-Circuit Protection
Grounded LED Cathode Connection
Small Footprint (15mm × 9mm × 4.32mm)
Surface Mount LGA Package APPLICATIONS Automotive and Avionic Lighting
Architectural Detail Lighting
Display Backlighting …