Integrated Circuits (ICs)

MAX20446BATG/VY+T

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Analog Devices Inc./Maxim Integrated

AUTOMOTIVE 6-CHANNEL BACKLIGHT DRIVER WITH BOOST/SEPIC CONTROLLER AND I2C INTERFACE

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DocumentsDatasheet MAX20446B Reliability Data

Integrated Circuits (ICs)

MAX20446BATG/VY+T

Active

Analog Devices Inc./Maxim Integrated

AUTOMOTIVE 6-CHANNEL BACKLIGHT DRIVER WITH BOOST/SEPIC CONTROLLER AND I2C INTERFACE

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DocumentsDatasheet MAX20446B Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MAX20446BATG/VY+T

Applications	Backlight
Current - Output / Channel	120 mA
Dimming	I2C, Analog, PWM
Frequency [Max]	2.2 MHz
Frequency [Min]	400 kHz
Grade	Automotive
Internal Switch(s)	True
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	6
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	24-WFQFN Exposed Pad
Supplier Device Package	24-SWTQFN (4x4)
Topology	Step-Up (Boost), SEPIC
Type	DC DC Controller
Voltage - Output	52 V
Voltage - Supply (Max) [Max]	36 V
Voltage - Supply (Min) [Min]	4.5 V

MAX20446B Series

Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller and I2C Interface

Part	Mounting Type	Number of Outputs	Dimming	Voltage - Supply (Min) [Min]	Voltage - Supply (Max) [Max]	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Grade	Voltage - Output	Type	Frequency [Min]	Frequency [Max]	Supplier Device Package	Topology	Package / Case	Applications
Analog Devices Inc./Maxim Integrated MAX20446BATG/VY+T	Surface Mount Wettable Flank	6	Analog I2C PWM	4.5 V	36 V	120 mA	125 °C	-40 °C	Automotive	52 V	DC DC Controller	400 kHz	2.2 MHz	24-SWTQFN (4x4)	SEPIC Step-Up (Boost)	24-WFQFN Exposed Pad	Backlight
Analog Devices Inc./Maxim Integrated MAX20446BATG/V+T	Surface Mount	6	Analog I2C PWM	4.5 V	36 V	120 mA	125 °C	-40 °C	Automotive	52 V	DC DC Controller	400 kHz	2.2 MHz	24-TQFN (4x4)		24-WFQFN Exposed Pad	Backlight
Analog Devices Inc./Maxim Integrated MAX20446BATG/VY+	Surface Mount Wettable Flank	6	Analog I2C PWM	4.5 V	36 V	120 mA	125 °C	-40 °C	Automotive	52 V	DC DC Controller	400 kHz	2.2 MHz	24-SWTQFN (4x4)	SEPIC Step-Up (Boost)	24-WFQFN Exposed Pad	Backlight

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 4.54
		2500	$ 4.54
	Tape & Reel (TR)	2500	$ 3.65

Description

General part information

MAX20446B Series

The MAX20446 is a 6-channel backlight driver 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 frequency range 400kHz to 2.2MHz. 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.The device is available in a 24-pin TQFN package and operates over the -40°C to 125°C temperature range.ApplicationsCentral Information DisplaysInfotainment DisplaysInstrument Clusters