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High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming

High-Voltage LED Drivers with Adjustable LED Current and High-Voltage Dimming Input Ease Driver Design

Product Details

Key Features

Applications/Uses

Parametric specs for LED Drivers
VIN (V) (min) 6.5
VIN (V) (max) 40
Max. No. of LEDs 10
# LED Channels 1
Regulation Topology Linear
LED Configuration Series
ILED per Channel (A) (max) 0.2
PWM Dimming Freq. (kHz) (max) 1
Dimming Ratio (max) 200
Dimming Control PWM
VDROPOUT (mV) (typ) 270
VCURR_SENSE (mV) 200
POUT (W) 8
ICC (mA) (max) 2
LED String Volt. (V) (max) 38.6
Package/Pins SOIC (N)/8
Budgetary
Price (See Notes)
1.05
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Simplified Block Diagram

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Parameters

Parametric specs for LED Drivers
VIN (V) (min) 6.5
VIN (V) (max) 40
Max. No. of LEDs 10
# LED Channels 1
Regulation Topology Linear
LED Configuration Series
ILED per Channel (A) (max) 0.2
PWM Dimming Freq. (kHz) (max) 1
Dimming Ratio (max) 200
Dimming Control PWM
VDROPOUT (mV) (typ) 270
VCURR_SENSE (mV) 200
POUT (W) 8
ICC (mA) (max) 2
LED String Volt. (V) (max) 38.6
Package/Pins SOIC (N)/8
Budgetary
Price (See Notes)
1.05

Key Features

  • 6.5V to 40V Operating Range
  • Adjustable LED Current
    • MAX16815: 35mA to 100mA
    • MAX16828: 35mA to 200mA
  • ±3.5% LED Current Accuracy
  • High-Voltage DIM Input for Dimming Interface
  • Integrated Pass Element with Low-Dropout Voltage (0.4V typ)
  • 5V Regulated Output with 4mA Source Capability
  • Thermal Shutdown
  • Output Short-Circuit Protection
  • Available in Small, Thermally Enhanced, 3mm x 3mm, 6-Pin TDFN and 8-Pin SO with Exposed Pad Packages
  • -40°C to +125°C Operating Temperature Range

Applications/Uses

  • Ambient and Architectural Lighting
  • Display Backlighting
  • Emergency Vehicle Warning Lights
  • LED Bulbs
  • Signage and Indicators

Description

The MAX16815/MAX16828 current regulators operate from a 6.5V to 40V input voltage range and deliver up to 100mA (MAX16815) or 200mA (MAX16828) to high-brightness LED (HB LED) loads. The output current is adjusted by using an external current sense resistor in series with the LEDs. The MAX16815/MAX16828's dimming input allows wide-range "pulsed" PWM operation. An on-board pass element minimizes external components while providing ±3.5% output-current accuracy.

The MAX16815/MAX16828 are available in a thermally enhanced, 3mm x 3mm, 6-pin TDFN package with exposed pad and in an 8-pin SO package with exposed pad; they are specified over the automotive -40°C to +125°C temperature range.

Simplified Block Diagram

MAX16815, MAX16828: Typical Operating Circuit MAX16815, MAX16828: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .