Specification	MAX20446CATGA/V+T

Current - Output / Channel	130 mA
Dimming	PWM
Frequency [Max]	2.42 MHz
Frequency [Min]	360 kHz
Grade	Automotive
Internal Switch(s)	False
Mounting Type	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-TQFN (4x4)
Topology	Step-Up (Boost), SEPIC
Type	DC DC Controller
Voltage - Output [Max]	5.25 V
Voltage - Output [Min]	4.75 V
Voltage - Supply (Max) [Max]	36 V
Voltage - Supply (Min) [Min]	4.5 V

MAX20446C Series

Automotive 6-Channel Backlight Driver with Boost/SEPIC Controller and Hybrid Dimming

Part	Mounting Type	Number of Outputs	Package / Case	Frequency [Max]	Frequency [Min]	Topology	Voltage - Supply (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output [Min]	Voltage - Output [Max]	Internal Switch(s)	Supplier Device Package	Current - Output / Channel	Type	Voltage - Supply (Min) [Min]	Grade	Dimming
Analog Devices Inc./Maxim Integrated MAX20446CATGA/V+T	Surface Mount	6	24-WFQFN Exposed Pad	2.42 MHz	360 kHz	SEPIC Step-Up (Boost)	36 V	125 °C	-40 °C	4.75 V	5.25 V		24-TQFN (4x4)	130 mA	DC DC Controller	4.5 V	Automotive	PWM

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	$ 4.20
	Tape & Reel (TR)	2500	$ 3.33

Description

General part information

MAX20446C 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 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.The MAX20446C is exceptionally easy to configure using a single resistor on the SET pin.The device is available in a 24-pin TQFN package and operates over the -40 to +125°C temperature range.ApplicationsCentral Information DisplaysInfotainment DisplaysInstrument Clusters