MAX16833BAUE+ by Analog Devices

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

Status: Active
Series: MAX16833, MAX16833B, MAX16833C, MAX16833D, MAX16833G
RoHS: Unknown
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The MAX16833, MAX16833B, MAX16833C, MAX16833D, and MAX16833G 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/C/G, the switching frequency can be dithered for spread-spectrum applications. The MAX16833B/D 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.

Prices starting from US$4.23


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$5.49
116
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Logo for element14 element14 US$4.44
116
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Features

Integration Minimizes BOM for High-Brightness LED Driver with a Wide Input Range Saving Space and Cost +5V to +65V Wide Input Voltage Range with a Maximum 65V Boost Output Integrated High-Side pMOS Dimming MOSFET Driver (Allows Single-Wire Connection to LEDs) ICTRL Pin for Analog Dimming Integrated High-Side Current-Sense Amplifier Full-Scale, High-Side, Current-Sense Voltage of 200mV
+5V to +65V Wide Input Voltage Range with a Maximum 65V Boost Output
Integrated High-Side pMOS Dimming MOSFET Driver (Allows Single-Wire Connection to LEDs)
ICTRL Pin for Analog Dimming
Integrated High-Side Current-Sense Amplifier
Full-Scale, High-Side, Current-Sense Voltage of 200mV
Simple to Optimize for Efficiency, Board Space, and Input Operating Range Boost, SEPIC, and Buck-Boost Single-Channel LED Drivers 2% Accurate 1.64V Reference (MAX16833B/D) Programmable Operating Frequency (100kHz to1MHz) with Synchronization Capability Frequency Dithering for Spread-Spectrum Applications (MAX16833/C/G) Thermally Enhanced 5mm x 4.4mm, 16-Pin TSSOP Package with Exposed Pad
Boost, SEPIC, and Buck-Boost Single-Channel LED Drivers
2% Accurate 1.64V Reference (MAX16833B/D)
Programmable Operating Frequency (100kHz to1MHz) with Synchronization Capability
Frequency Dithering for Spread-Spectrum Applications (MAX16833/C/G)
Thermally Enhanced 5mm x 4.4mm, 16-Pin TSSOP Package with Exposed Pad
Protection Features and Wide Temperature Range Increase System Reliability Short-Circuit, Overvoltage, and Thermal Protection Fault-Indicator Output -40°C to +125°C Operating Temperature Range
Short-Circuit, Overvoltage, and Thermal Protection
Fault-Indicator Output
-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) 10
PWM Dimming Freq. (kHz) (max) 20
Dimming Ratio (max) 3000
Dimming Control AnalogPWM
VCURR_SENSE (mV) 40
POUT (W) 100
ICC (mA) (max) 2.5
LED String Volt. (V) (max) 65
Switching Frequency (kHz) 1000
Package/Pins TSSOP/16
BudgetaryPrice (See Notes) 2.78


MAX16833BAUE+ Semiconductors - ICs by Analog Devices

LED DRIVER 1MHZ TSSOP-16

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

Specifications

Device Topology Boost Buck Buck-Boost Flyback SEPIC
No. of Outputs 1Outputs
Output Current -
Output Voltage -
Driver Case Style TSSOP
No. of Pins 16Pins
Input Voltage Min 5V
Input Voltage Max 65V
Switching Frequency 1MHz
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Led Driver, 1Mhz, Tssop-16 | Newark Electronics
LED DRIVER, 1MHZ, TSSOP-16 | element14

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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