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MAXIM MAX20444BATG/V+ product image
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MAXIM MAX20444BATG/V+

Manufacturer
MAXIM
MPN
MAX20444BATG/V+
LCSC Part #
C3188781
Packaging
TQFN-24(4x4)
Customer #
Key Attributes
400kHz~2.2MHz 4 DC-DC 130mA 4.5V~36V TQFN-24(4x4) LED Drivers RoHS
DatasheetMAXIM MAX20444BATG/V+
RoHS Compliance1 documents available
Alternative Parts1
Out of Stock
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QtyUnit Price(Reference Only)Total Amount
1+$ 3.6214$ 3.62
200+$ 1.4026$ 280.52
500+$ 1.3532$ 676.60
1,000+$ 1.3285$ 1328.50
Standard Packaging75/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers
ManufacturerMAXIM
PackagingTQFN-24(4x4)
Frequency - Switching400kHz~2.2MHz
DimmingAnalog;I2C;PWM
Voltage - Input(AC)-
Number of Channels4
TypeDC-DC
Switch tube (built-in/external)External
Output Voltage-
Output Current130mA
Operating Temperature-40℃~+125℃
FeaturesOver Voltage Protection;Built-in soft-start;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP)
TopologySEPIC;Boost
Constant Current Accuracy-
Voltage - Input(DC)4.5V~36V
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Introduction

AI Translation

The MAX20444B is a 4-channel backlight driver IC with boost controller for automotive displays. The integrated current outputs can sink up to 130mA LED current each. The device accepts a wide 4.5V to 36V input voltage range and withstands direct automotive load-dump events. The internal current-mode switching DC-DC controller supports boost or SEPIC topologies and operates in the 400kHz to 2.2MHz frequency range. Integrated spread spectrum helps reduce EMI. An adaptive output-voltage control scheme minimizes power dissipation in the LED current-sink paths. The device features I2C-controlled pulse-width-modulation (PWM) dimming and hybrid dimming. In either case, the minimum pulse width is 500ns. Phase-shifted dimming of the strings is incorporated for lower EMI. Comprehensive diagnostic information is also available through the I2C interface, while stand-alone operation is also supported. The MAX20444B is available in a 24-pin TQFN or 24-pin side-wettable TQFN (SWTQFN) package and operates over the -40°C to +125°C temperature range.

Features

AI Translation
  • Wide Voltage-Range Operation: Operates Down to 4V Supply after Startup, Survives Load Dumps up to 52V
  • High Integration: Complete 4-Channel Solution Including Boost Controller, I2C Control for Minimum Parts Count
  • Robust and Low EMI: Spread-Spectrum Oscillator, Phase Shifting, 400kHz to 2.2MHz Switching-Frequency Range, Fail-Safe Operation Mode Using the FSEN Pin
  • Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C: Dimming Ratio >10,000:1 Using Hybrid Dimming, 10,000:1 Dimming Ratio at 200Hz Using PWM Dimming
  • Complete Diagnostics: LED Open/Short Detection and Protection, Boost Output Undervoltage and Overvoltage, Boost-Voltage Measurement, LED-Current Measurement, Thermal Shutdown
  • Compact (4mm×4mm) 24-Pin TQFN and SWTQFN Packages

Applications

AI Translation
  • Infotainment Displays
  • Central Information Displays
  • Instrument Clusters

Alternative Parts

MPNManufacturerPackagingAvailabilityUnit Price
MAX20444BATG/V+TMAXIMTQFN-24(4x4)5$ 16.3553