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MAX16833, MAX16833B, MAX16833C, MAX16833D, MAX16833E

High-Voltage HB LED Drivers with Integrated High-Side Current Sense

LED Driver Substantially Reduces Costs of EMI Filter, Load Dump Filter, and Short-Circuit Protection Components

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX16833/MAX16833B/MAX16833C/MAX16833D/MAX16833E are peak current-mode-controlled LED drivers for boost, buck-boost, SEPIC, flyback, and high-side buck topologies. A dimming driver designed to drive an external p-channel in series with the LED string provides wide-range dimming control. This feature provides extremely fast PWM current switching to the LEDs with no transient overvoltage or undervoltage conditions. In addition to PWM dimming, the ICs provide analog dimming using a DC input at ICTRL. The ICs sense the LED current at the high side of the LED string.

A single resistor from RT/SYNC to ground sets the switching frequency from 100kHz to 1MHz, while an external clock signal capacitively coupled to RT/SYNC allows the ICs to synchronize to an external clock. In the MAX16833/MAX16833C/MAX16833E, the switching frequency can be dithered for spread-spectrum applications. The MAX16833B/MAX16833D instead provide a 1.64V reference voltage with a 2% tolerance.

The ICs operate over a wide 5V to 65V supply range and include a 3A sink/source gate driver for driving a power MOSFET in high-power LED driver applications. Additional features include a fault-indicator output (active-low FLT) for short or overtemperature conditions and an overvoltage-protection sense input (OVP) for overvoltage protection. High-side current sensing combined with a p-channel dimming MOSFET allow the positive terminal of the LED string to be shorted to the positive input terminal or to the negative input terminal without any damage. This is a unique feature of the ICs.

Data Sheet

Download	Rev 3	(PDF, 1.4MB)
E-Mail

An evaluation kit is available: MAX16833EVKIT

Key Features

Boost, SEPIC, and Buck-Boost Single-Channel LED Drivers
+5V to +65V Wide Input Voltage Range with a Maximum 65V Boost Output
Integrated High-Side Current-Sense Amplifier
ICTRL Pin for Analog Dimming
Integrated High-Side pMOS Dimming MOSFET Driver (Allows Single-Wire Connection to LEDs)
Programmable Operating Frequency (100kHz to 1MHz) with Synchronization Capability
Frequency Dithering for Spread-Spectrum Applications (MAX16833/MAX16833C/MAX16833E)
2% Accurate 1.64V Reference (MAX16833B/MAX16833D)
Full-Scale, High-Side, Current-Sense Voltage of 200mV
Short-Circuit, Overvoltage, and Thermal Protection
Fault Indicator Output
-40°C to +125°C Operating Temperature Range
Thermally Enhanced 5mm x 4.4mm, 16-Pin TSSOP Package with Exposed Pad

Applications/Uses

Automotive Exterior Lighting:
-High-Beam/Low-Beam/Signal/Position Lights
-Daytime Running Lights (DRLs)
-Fog Light and Adaptive Front Light Assemblies
Commercial, Industrial, and Architectural
Lighting

Key Specifications:

High Brightness LED Drivers

Part Number

Topology

Device V_IN
(V)

LED Channels

I_LED per Channel
(A)

LED String Volt.
(V)

Internal Pwr. MOSFETs

Freq.
(kHz)

PWM Dimming Freq.
(kHz)

PWM Dimming Ratio

EV Kit

Budgetary Price

max

min

max

See Notes

MAX16833

Boost/SEPIC

Buck

Buck-Boost

1000

3000

Yes

$2.24 @1k

See All High Brightness LED Drivers (29)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Simplified Operating Circuit

Application Notes

Application Note 5346

Power Control for Automotive Applications

Product Guides

Automotive (PDF)

Reliability Reports

Reliability Report:	MAX16833.pdf MAX16833B.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

MAX16833 LED Driver Macromodel

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX16833AUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833AUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833AUE/V+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833AUE/V+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833BAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833BAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833BAUE/V+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833BAUE/V+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833CAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833CAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX16833CAUE/V+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833CAUE/V+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833DAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833DAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833DAUE/V+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833DAUE/V+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833EAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833EAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833EAUE/V+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833EAUE/V+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX16833FAUE+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833FAUE+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833FAUE/V+			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX16833FAUE/V+T			Active	TSSOP-EP;16 pin;33.2 mm² Outline Drawing:21-0108 (PDF) Land Pattern: 90-0120 (PDF) Use pkgcode/variation: U16E+3*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX16833EVKIT

Evaluation Kit for the MAX16833

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