MAX16813ATP/V+ by Analog Devices

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

Status: Active
Series: MAX16813
RoHS: Unknown
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The MAX16813 high-efficiency, high-brightness LED (HB LED) driver provides four integrated LED current-sink channels. An integrated current-mode switching controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs. The device 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 boost or SEPIC topologies and operates in an adjustable frequency range between 200kHz and 2MHz. An integrated spread-spectrum mode helps reduce EMI. Current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. An adaptive output-voltage control scheme minimizes power dissipation in the LED current-sink paths. The device has a separate p-channel drive (PGATE) pin that is used for output undervoltage protection. Whenever the output falls below the threshold, the external p-MOSFET is latched off, disconnecting the input source. Cycling the EN or the input supply is required to restart the converter. The external p-MOSFET is off when the EN pin is below 0.3V (typ). The shutdown current is 1µA (typ) at an input voltage of 12V. The device consists of four identical linear current-sink channels, adjustable from 20mA to 150mA with an accuracy of ±3% using a single external resistor. Multiple channels can be connected in parallel to achieve higher current per LED string. The device also features a unique pulsed dimming control through a logic input (DIM), with minimum pulse width as low as 500ns. Protection features include output overvoltage, open-LED detection and protection, programmable shorted LED detection and protection, output undervoltage protection and detection, and overtemperature protection. The device operates over the -40°C to +125°C automotive temperature range. The MAX16813 is available in 20-pin (6.5mm x 4.4mm) TSSOP and 20-pin (4mm x 4mm) TQFN packages.

Where to Buy

Prices starting from US$1.80

Distributor Stock
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Newark Electronics
from US$1.84
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element14
from US$2.18
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Farnell
from US$1.80
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Features

4-Channel Linear LED Current Sinks with Internal MOSFETs Independently Drive Multiple LED Strings Full-Scale LED Current Adjustable from 20mA to 150mA Drives 1 to 4 LED Strings 10000:1 PWM Dimming at 200Hz
Full-Scale LED Current Adjustable from 20mA to 150mA
Drives 1 to 4 LED Strings
10000:1 PWM Dimming at 200Hz
Flexible Current-Mode Architecture Supports a Wide Range of Applications While Minimizing Interference Boost or SEPIC Current-Mode DC-DC Controller 200kHz to 2MHz Programmable Switching Frequency External Switching-Frequency Synchronization Spread-Spectrum Mode
Boost or SEPIC Current-Mode DC-DC Controller
200kHz to 2MHz Programmable Switching Frequency
External Switching-Frequency Synchronization
Spread-Spectrum Mode
Protection Features Enhance Fault Detection and System Reliability Output-to-Ground Undervoltage Protection Open-Drain Fault-Indicator Output Open-LED and LED-Short Detection and Protection Overtemperature Protection
Output-to-Ground Undervoltage Protection
Open-Drain Fault-Indicator Output
Open-LED and LED-Short Detection and Protection
Overtemperature Protection
Adaptive Output-Voltage Optimization to Minimize Power Dissipation Less than 2µA Shutdown Current
Less than 2µA Shutdown Current

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) 10000
Dimming Control PWM
POUT (W) 32
ICC (mA) (max) 5.7
LED String Volt. (V) (max) 40
Switching Frequency (kHz) 2000
Package/Pins TQFN/20TSSOP/20
BudgetaryPrice (See Notes) 1.02

Last 6 months Inventory & Pricing History

MAX16813ATP/V+ Semiconductors - ICs by Analog Devices

LED DRIVER BOOST/SEPIC 2MHZ TQFN-20

LED Lighting Components
> LED Driver ICs
> DC / DC LED Driver ICs
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Boost SEPIC
Input Voltage Min 4.75V
Input Voltage Max 40V
Output Voltage Max 4.75V
Output Current Max 150mA
Switching Frequency 2MHz
No. of Outputs 4Outputs
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 -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Current 150mA

Last 6 months Inventory & Pricing History

Alternative Descriptions

Led Driver, Boost/Sepic, 2Mhz, Tqfn-20 | Newark Electronics
LED DRIVER, BOOST/SEPIC, 2MHZ, TQFN-20 | element14

Frequently Asked Questions

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Is the MAX16813ATP/V+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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