MAX20090ATP/V+ by Analog Devices

Automotive High-Voltage, High-Brightness LED Controller

Status: Active
Series: MAX20090, MAX20090B
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The MAX20090 is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running lights (DRLs), turn indicators, fog lights, and other LED lights. It can take an input voltage from 5V to 65V and drive a string of LEDs with a maximum output voltage of 65V. The device senses output current at the high side of the LED string. High-side current sensing is required to protect for shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, SEPIC mode, or buck-boost-mode configurations. The PWM input provides LED dimming ratios of up to 1000:1, and the ICTRL input provides additional analog dimming capability in the controller. The device also includes a fault flag ( active-low FLT) that indicates open string, shorted string, and thermal shutdown. The device has built-in spread-spectrum modulation for improved electromagnetic-compatibility performance. The device can also be used in zeta and Cuk converter configurations, if necessary in some applications. The MAX20090 is available in a space-saving (4mm × 4mm), 20-pin TQFN, 20-pin side-wettable TQFN, or a 20-pin TSSOP package and is specified to operate over the -40°C to +125°C automotive temperature range. Design Solution: Driver Monitoring Systems Need a New Breed of IR-LED Drivers › Design Solution: Flexible LED Controller Simplifies Automotive Exterior Lighting Design ›

Where to Buy

Prices starting from US$2.60

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Features

High-Brightness LED Driver with a Wide Input Range Saves Space and Cost Through Integration +5V to +65V Wide Input Voltage Range +65V Maximum Boost Output Voltage ICTRL Pin for Analog Dimming Integrated High-Side Current-Sense Amplifier 200Hz On-Board Ramp Simplifies PWM Dimming
+5V to +65V Wide Input Voltage Range
+65V Maximum Boost Output Voltage
ICTRL Pin for Analog Dimming
Integrated High-Side Current-Sense Amplifier
200Hz On-Board Ramp Simplifies PWM Dimming
Flexible Architecture Enables Easy Design Optimization Configurable as Boost, High-Side Buck, SEPIC, Buck-Boost, Zeta, and Cuk Programmable Switching Frequency (200kHz to 2.2MHz) Spread-Spectrum Modulation to Reduce EMI Noise
Configurable as Boost, High-Side Buck, SEPIC, Buck-Boost, Zeta, and Cuk
Programmable Switching Frequency (200kHz to 2.2MHz)
Spread-Spectrum Modulation to Reduce EMI Noise
Automotive Features and Robustness Improve System Reliability Fault Diagnosis Through Fault Flag Short Circuit, Overvoltage, and Thermal Protection -40°C to +125°C Operating Temperature Range
Fault Diagnosis Through Fault Flag
Short Circuit, Overvoltage, and Thermal Protection
-40°C to +125°C Operating Temperature Range

Specifications

VIN (V) (min) 5
VIN (V) (max) 65
Max. No. of LEDs 15
# LED Channels 1
Regulation Topology Inductor Based
LED Configuration Series
ILED per Channel (A) (max) 3
PWM Dimming Freq. (kHz) (max) 2
Dimming Ratio (max) 1000
Dimming Control AnalogDigitalPWM
VCURR_SENSE (mV) 200
POUT (W) 50
ICC (mA) (max) 5
LED String Volt. (V) (max) 60
Switching Frequency (kHz) 25026230050075010001200150020002100
Package/Pins TQFN-CU/20TSSOP-CU/20
BudgetaryPrice (See Notes) 2.43


MAX20090ATP/V+ Semiconductors - ICs by Analog Devices

LED DRIVER BUCK/BOOST 2.2MHZ TQFN-20

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Boost Buck Buck-Boost SEPIC
Input Voltage Min 5V
Input Voltage Max 65V
Output Voltage Max 60V
Output Current Max 3A
Switching Frequency 2.2MHz
No. of Outputs 1Outputs
IC Mounting SMD
Driver Case Style TQFN
No. of Pins 20Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard AEC-Q100
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Voltage 65V

Alternative Descriptions

Automotive High Voltage LED Co | Analog Devices
LED DRIVER, BUCK/BOOST, 2.2MHZ, TQFN-20 | Farnell
Led Driver, Buck/Boost, 2.2Mhz, Tqfn-20 | Newark Electronics

Frequently Asked Questions

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Is the MAX20090ATP/V+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Farnell and Newark Electronics have stock available or on a lead time for MAX20090ATP/V+ .

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