LM3424QMHX/NOPB Mosfet Power Transistor LED Lighting Drivers Constant Current N-Channel Controller wi
n channel mos field effect transistor
,p channel mosfet driver circuit
LM3424QMHX/NOPB Mosfet Power Transistor LED Lighting Drivers Constant Current N-Channel Controller wi
1 Features
- AEC Qualified for Automotive Applications
– Device Temperature Grade 1: −40°C ≤ TA ≤
125°C
-
VIN Range from 4.5V to 75V
-
High-Side Adjustable Current Sense
-
2-Ω, 1-A Peak MOSFET Gate Driver
-
Input Undervoltage and Output Overvoltage Protection
-
PWM and Analog Dimming
-
Cycle-by-Cycle Current Limit
-
Programmable Softstart and Slope Compensation
-
Programmable, Synchronizable Switching Frequency
-
Programmable Thermal Foldback
-
Precision Voltage Reference
-
Low Power Shutdown and Thermal Shutdown
2 Applications
-
LED Drivers - Buck, Boost, Buck-Boost, and SEPIC
-
Indoor and Outdoor Area SSL
-
Automotive
-
General Illumination
-
Constant-Current Regulators
3 Description
The LM3424-Q1 is a versatile high voltage N-channel MOSFET controller for LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. In addition, the LM3424-Q1 includes a thermal foldback feature for temperature management of the LEDs. This flexibility, along with an input voltage rating of 75 V, makes the LM3424- Q1 ideal for illuminating LEDs in a large family of applications.
Adjustable high-side current sense allows for tight regulation of the LED current with the highest efficiency possible. The LM3424-Q1 uses standard peak current-mode control providing inherent input voltage feed-forward compensation for better noise immunity. It is designed to provide accurate thermal foldback with a programmable foldback breakpoint and slope. In addition, a 2.45V reference is provided.
The LM3424-Q1 includes a high-voltage startup regulator that operates over a wide input range of 4.5 V to 75 V. The internal PWM controller is designed for adjustable switching frequencies of up to 2.0 MHz and external synchronization is possible. The controller is capable of high speed PWM dimming and analog dimming.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LM3424-Q1 |
HTSSOP (20) |
6.50 mm × 4.40 mm |
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