MAX16814AUP+ by Analog Devices

Integrated, 4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller

Status: Active
Series: MAX16814
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX16814 high-efficiency, high-brightness LED (HB LED) driver provides up to four integrated LED current-sink channels. An integrated current-mode switching DC-DC controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs. The MAX16814 accepts a wide 4.75V to 40V input voltage range and withstands direct automotive load-dump events. The wide input range allows powering HB LEDs for small to medium-sized LCD displays in automotive and general lighting applications. An internal current-mode switching DC-DC controller supports the boost, coupled-inductor boost-buck, or SEPIC topologies and operates in an adjustable frequency range between 200kHz and 2MHz. It can also be used for single-inductor boost-buck topology in conjunction with the MAX15054 and an additional MOSFET. The current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. The MAX16814 also features an adaptive output-voltage control scheme that minimizes the power dissipation in the LED current-sink paths. The MAX16814 consists of four identical linear current source channels to drive four strings of HB LEDs. The channel current is adjustable from 20mA to 150mA with an accuracy of ±3% using an external resistor. The external resistor sets all 4-channel currents to the same value. The device allows connecting multiple channels in parallel to achieve higher current per LED string. The MAX16814 also features pulsed dimming control, on all four channels through a logic input (DIM). In addition, the MAX16814A_ _ and MAX16814U_ _ include a unique feature that allows a very short minimum pulse width as low as 1µs. The MAX16814 includes an output overvoltage, open-LED detection and protection, programmable shorted LED detection and protection, and overtemperature protection. The device operates over the -40°C to +125°C automotive temperature range. The MAX16814 is available in 6.5mm x 4.4mm, 20-pin TSSOP, 4mm x 4mm, 20-pin TQFN and QFND packages.

Prices starting from US$0.78


Distributor Starting From Stock
Logo for element14 element14 US$3.29
78
Buy Now
Logo for Newark Electronics Newark Electronics US$0.78
5
Buy Now
View Full Pricing & Stock Comparison

Features

Cost-Effective 4-Channel Linear LED Current Sinks for Wide Range of LED Lighting Applications Drives One to Four LED Strings 4.75V to 40V Input Voltage Range Full-Scale LED Current Adjustable from 20mA to 150mA 5000:1 PWM Dimming at 200Hz Less than 40µA Shutdown Current
Drives One to Four LED Strings
4.75V to 40V Input Voltage Range
Full-Scale LED Current Adjustable from 20mA to 150mA
5000:1 PWM Dimming at 200Hz
Less than 40µA Shutdown Current
Minimal Component Count Saves Cost and Space Internal MOSFET for Each Channel Internal Current-Mode Switching DC-DC Controller Supporting Boost, Coupled-Inductor Boost-Buck,or SEPIC Topologies 200kHz to 2MHz Programmable Switching Frequency for Optimizing Size vs. Efficiency External Switching-Frequency Synchronization
Internal MOSFET for Each Channel
Internal Current-Mode Switching DC-DC Controller Supporting Boost, Coupled-Inductor Boost-Buck,or SEPIC Topologies
200kHz to 2MHz Programmable Switching Frequency for Optimizing Size vs. Efficiency
External Switching-Frequency Synchronization
Protection Features and Wide Operating Temperature Range Improves Reliability Open-Drain Fault-Indicator Output Open-LED and LED-Short Detection and Protection Overtemperature Protection Available in Thermally Enhanced 20-Pin TQFN, QFND, and TSSOP Packages Operation Over -40°C to +125°C Temperature Range
Open-Drain Fault-Indicator Output
Open-LED and LED-Short Detection and Protection
Overtemperature Protection
Available in Thermally Enhanced 20-Pin TQFN, QFND, and TSSOP Packages
Operation Over -40°C to +125°C Temperature Range

Specifications

VIN (V) (min) 4.75
VIN (V) (max) 40
Max. No. of LEDs 44
# LED Channels 4
Regulation Topology Inductor Based
LED Configuration Series-Parallel
ILED per Channel (A) (max) 0.15
PWM Dimming Freq. (kHz) (max) 200
Dimming Ratio (max) 5000
Dimming Control PWM
POUT (W) 32
ICC (mA) (max) 5
LED String Volt. (V) (max) 40
Switching Frequency (kHz) 2000
Package/Pins QFND/20TQFN/20TSSOP/20
BudgetaryPrice (See Notes) 1.9


MAX16814AUP+ Semiconductors - ICs by Analog Devices

LED DRIVER BOOST/BUCK 2MHZ TSSOP-20

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

Specifications

Device Topology Boost Buck-Boost SEPIC
Input Voltage Min 4.75V
Input Voltage Max 40V
Output Voltage Max 40V
Output Current Max 150mA
Switching Frequency 2MHz
No. of Outputs 4Outputs
IC Mounting SMD
Driver Case Style TSSOP
No. of Pins 20Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Current 2A
Output Voltage 40V

Alternative Descriptions

LED DRIVER, BOOST/BUCK, 2MHZ, TSSOP-20 | element14
Led Driver, Boost/Buck, 2Mhz, Tssop-20 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX16814AUP+ ?

Additional datasheets, footprints and schematics for MAX16814AUP+ are listed on our Part Details page. You can also find images and similar parts to MAX16814AUP+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX16814AUP+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX16814AUP+ 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 MAX16814AUP+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX16814AUP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX16814AUP+ have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for MAX16814AUP+ .

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

Stock availability and lead times will be displayed for MAX16814AUP+ often in real-time on the comparison pages.

What if I can't find stock of MAX16814AUP+ ?

You can fill out our help required form which you can use to request a quote for MAX16814AUP+ 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.

We use cookies to improve your experience. See our privacy policy.
Okay