MAX25613

Automotive Infrared LED Controller

Single channel, automotive IR LED driver simplifies design for automotive driver monitoring systems


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Description

The MAX25613 is a single-channel, high-current IR LED driver for automotive Driver Monitoring Systems (DMS). It can take an input voltage from 5V to 48V and can drive a string of LEDs with a maximum output voltage of 55V. The MAX25613 operates using a Maxim proprietary, dual-control architecture to achieve high LED drive capability while minimizing the peak current on the battery harness.

The MAX25613 senses output current at the high side of the LED string. High-side current sensing is required to protect against shorts from the output to the ground or battery input. The PWM input provides LED dimming ratios of up to 5000:1, and the ICTRL input provides additional analog dimming capability in the device. The MAX25613 also includes a fault flag that indicates LED short to battery, LED short to ground, LED open, and thermal shutdown. The MAX25613 has built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25613 is available in a space-saving (4mm x 4mm) 20-pin side-wettable TQFN or a-20 pin TSSOP package, and is specified to operate over the -40°C to +125°C automotive temperature range

Key Features

  • High-Current IR LED Driver with Reduced Peak Current on the Battery Harness
    • Maxim Proprietary Control Architecture
  • Protection Features Increase System Reliability
    • LED Short-to-Battery, Short-to-Ground Protection
    • LED String Open Protection
    • Thermal Protection
    • Fault Diagnosis through Fault Flag
  • Automotive Ready
    • -40°C to +125°C Operating Temperature Range
    • AEC-Q100 Qualified

Applications/Uses

  • Driver Monitoring Systems
  • IR LED drivers

See parametric specs for LED Drivers (81)


Part NumberRegulation TopologyMax. No. of LEDsLED ChannelsLED ConfigurationILED per Channel
(A)
PWM Dimming Freq.
(kHz)
Dimming RatioDimming ControlVCURR_SENSE
(mV)
POUT
(W)
VIN
(V)
VIN
(V)
ICC
(mA)
LED String Volt.
(V)
Oper. Freq.
(kHz)
Package/Pins
maxmaxmaxminmaxmaxmax
MAX25613 NEW!Inductor Based81Series525000
Analog
PWM
2001005485282200
TQFN/20
TSSOP/20

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX25613EVKIT: Evaluation Kit for the MAX25613
Request Reliability Report for: MAX25613 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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