MAX20078EVKIT# by Analog Devices

Synchronous Buck, High-Brightness LED Controller

Status: Active
Series: MAX20078
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX20078 is a high-voltage, synchronous n-channel MOSFET controller for high-current buck LED drivers. The device uses a proprietary average current-mode-control scheme to regulate the inductor current. This control method does not need any control-loop compensation while maintaining nearly constant switching frequency. Inductor current sense is achieved by sensing the current in the bottom synchronous n-channel MOSFET. It does not require any current sense at high voltages. The device operates over a wide 4.5V to 65V input range. The device is designed for high-frequency operation and can operate at switching frequencies as high as 1MHz. The high- and low-side gate drivers have peak source and sink current capability of 2A. The driver block also includes a logic circuit that provides an adaptive nonoverlap time to prevent shoot-through currents during transition. The device includes both analog and PWM dimming. The device includes a 5V VCC regulator capable of delivering 10mA to external circuitry. The device also includes a current monitor that provides an analog voltage proportional to the inductor current. The device has a fault flag that indicates open and shorts across the output. Protection features include inductor current-limit protection, overvoltage protection, and thermal shutdown. The MAX20078 is available in a space-saving (3mm × 3mm), 16-pin TQFN or a 16-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: Achieve Superior Automotive Exterior Lighting with a High-Power Buck LED Controller ›

Where to Buy

Prices starting from US$174.00

Distributor Stock
Logo for Newark
Newark Electronics
from US$174.00
5
in stock
 Buy Now
Logo for element14 Singapore
element14
from US$222.58
5
in stock
 Buy Now
Logo for Farnell UK
Farnell
from US$179.05
5
in stock
 Buy Now
Buy Now

Features

Automotive Ready: AEC-Q100 Qualified
Wide Input Voltage Range: 4.5V to 65V
Easy to Design No Compensation Components Programmable Switching Frequency
No Compensation Components
Programmable Switching Frequency
Wide Dimming Ratio Allows High Contrast Ratio Analog Dimming PWM Dimming
Analog Dimming
PWM Dimming
Suitable for Matrix Lighting Maintains Current Regulation While Shorting/Opening Individual LEDs in the String Ultra-Fast Response Control Loop Prevents Overshoots and Undershoots
Maintains Current Regulation While Shorting/Opening Individual LEDs in the String
Ultra-Fast Response Control Loop Prevents Overshoots and Undershoots
Fault Detection and Protection Overvoltage Protection Open and Short Detection Thermal Shutdown Inductor Current Monitor
Overvoltage Protection
Open and Short Detection
Thermal Shutdown
Inductor Current Monitor
Low-Power Shutdown Mode

Specifications

VIN (V) (min) 4.5
VIN (V) (max) 65
Max. No. of LEDs 15
# LED Channels 1
Regulation Topology Inductor Based
LED Configuration Series
ILED per Channel (A) (max) 30
PWM Dimming Freq. (kHz) (max) 20
Dimming Ratio (max) 100000
Dimming Control AnalogDigitalPWM
VCURR_SENSE (mV) 200
POUT (W) 100
ICC (mA) (max) 50
LED String Volt. (V) (max) 60
Switching Frequency (kHz) 2502623005007501000120015002000210022004000
Package/Pins TQFN-CU/16TSSOP-CU/16
BudgetaryPrice (See Notes) 2.24

Last 6 months Inventory & Pricing History

MAX20078EVKIT# Development Boards & Evaluation Kits by Analog Devices

EVALUATION KIT PWM LED DRIVER 65V

Development Boards, Evaluation Tools
> Lighting & LED Development Kits
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Synchronous Buck (Step Down)
No. of Outputs -
Output Current 2A
Output Voltage -
Input Voltage Min 4.5V
Input Voltage Max 65V
Core Chip MAX20078
Dimming Control Type PWM
Kit Contents Evaluation Kit MAX20078
Product Range -
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Evaluation Kit, Pwm Led Driver, 65V | Newark Electronics
EVALUATION KIT, PWM LED DRIVER, 65V | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX20078EVKIT# ?

Additional datasheets, footprints and schematics for MAX20078EVKIT# are listed on our Part Details page. You can also find images and similar parts to MAX20078EVKIT# on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX20078EVKIT# on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX20078EVKIT# price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX20078EVKIT# you can contact the distributor directly for product support, shipping queries etc.

Is the MAX20078EVKIT# RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX20078EVKIT# have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX20078EVKIT# .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX20078EVKIT# often in real-time on the comparison pages.

What if I can't find stock of MAX20078EVKIT# ?

You can fill out our help required form which you can use to request a quote for MAX20078EVKIT# from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.