MAX20050

Synchronous Buck LED Driver Evaluation Kit

The MAX20050 is a synchronous buck led driver evaluation kit from Analog Devices. View the full MAX20050 datasheet below including key specifications.

Official MAX20050 datasheet (PDF) — the source this page was extracted from.

Manufacturer

Analog Devices

MAX20050 Key Specifications

Parameter	Value
Dimming	PWM and analog (REFI)
Output Current	up to 2A
VCC LDO Output	5V, 10mA
Spread Spectrum	±3% of switching frequency
Loop Compensation	Internal
Switching Frequency	400kHz (internal compensation)
Input Supply Voltage	4.5V to 65V
Shutdown Supply Current	5μA (typ) at VIN = 12V
High-Side MOSFET RDS(On)	0.14Ω (typ)
REFI Input Voltage Range	0.2V to 1.2V
Thermal Shutdown Threshold	+165°C (resume at +155°C)
Current Regulation Accuracy	±2.5% full scale, ±8% at 10% of full scale
Operating Temperature Range	-40°C to +125°C
Full-Scale Current-Sense Voltage	200mV
Thermal Resistance Junction-To-Ambient (TDFN)	41°C/W

MAX20050 Overview

Part: MAX20050 EV Kit — Maxim Integrated

Type: Synchronous Buck LED Driver Evaluation Kit

Description: Evaluation kit demonstrating the MAX20050 and MAX20052 1.5 A synchronous buck LED drivers with integrated MOSFETs over a 4.5 V to 65 V input supply range.

Operating Conditions:

Supply voltage: 4.5 V to 65 V (MAX20050); less than 40 V for MAX20052
Switching frequency: 400 kHz (MAX20050); 2.1 MHz (MAX20052)
Output LED current: 0 A to 1.5 A

Key Specs:

Input DC supply voltage: 4.5 V to 65 V
LED string drive capacity: 1 to 16 LEDs
Maximum continuous LED current: 1.5 A
Switching frequency: 400 kHz (fixed, MAX20050); 2.1 MHz (MAX20052)
LDO output capability: 5 V, 10 mA
Analog dimming input range (REFI): 0.2 V (turn-off) to 1.2 V (linear dimming to max current)
PWM logic thresholds: 2 V (max) rising threshold, 0.8 V (min) falling threshold

Features:

Integrated high-side and low-side switching MOSFETs
High-side average current-mode control architecture
Internal error amplifier compensation
Spread-spectrum mode (SSM) enabled for EMI improvement
Analog and PWM dimming support
Undervoltage-lockout, output short, open-LED, and thermal-shutdown protection
Open-drain, active-low fault indicator output (FLT)

Applications:

Automotive exterior and interior LED lighting
High-brightness LED strings (up to 16 LEDs)

Package:

12-pin TDFN-EP (IC package)

MAX20050 Features

4.5V to 65V Input Voltage
Drives 1 to 16 LEDs
0A to 1.5A LED Current
Demonstrates Undervoltage-Lockout and Output Short Protection
Demonstrates Current-Limit and Thermal-Shutdown Feature
Demonstrates 5V, 10mA LDO Output Capability
Proven PCB Layout and Thermal Design
Fully Assembled and Tested

Ordering Information appears at end of data sheet.

More datasheets

All Analog Devices datasheets (700)

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