MAX20056 Series

Integrated, 6-Channel High-Brightness LED Driver with Very Wide PWM Dimming Ratio and Phase Shifting for Automotive Displays

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Integrated, 6-Channel High-Brightness LED Driver with Very Wide PWM Dimming Ratio and Phase Shifting for Automotive Displays

Part	Qualification	Type	Dimming	Number of Outputs	Frequency Range 1 (Max)	Frequency Range 1 (Min)	Package Name	Package Length	Package Features	Package Width	Voltage - Supply (Max)	Topology	Grade	Voltage - Supply (Min)	Current - Output / Channel	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Max)	Voltage - Output (Min)	Internal Switch(s)	Mounting Type	Voltage - Output	Utilized IC / Part	Contents	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Features	Total Output Count	Output Type	Non-Isolated Output Count
Analog Devices Inc./Maxim Integrated MAX20056BAUGB/V+	AEC-Q100	DC DC Controller	PWM	6	2.2 MHz	400 kHz	24-TSSOP 24-TSSOP-EP	0.173 in	Exposed Pad	4.4 mm	42 V	SEPIC Step-Down (Buck) Step-Up (Boost)	Automotive	4.5 V	120 mA	125 °C	-40 °C	5.2 V	4.8 V	No	Surface Mount
Analog Devices Inc./Maxim Integrated MAX20056BAUGB/V+T	AEC-Q100	DC DC Controller	PWM	6	2.2 MHz	400 kHz	24-TSSOP 24-TSSOP-EP	0.173 in	Exposed Pad	4.4 mm	42 V	SEPIC Step-Down (Buck) Step-Up (Boost)	Automotive	4.5 V	120 mA	125 °C	-40 °C			No	Surface Mount	4.8 V
Analog Devices Inc./Maxim Integrated MAX20056BAUGA/V+T	AEC-Q100	DC DC Controller	PWM	6	2.2 MHz	400 kHz	24-TSSOP 24-TSSOP-EP	0.173 in	Exposed Pad	4.4 mm	42 V	SEPIC Step-Down (Buck) Step-Up (Boost)	Automotive	4.5 V	120 mA	125 °C	-40 °C			No	Surface Mount	5 VDC
Analog Devices Inc./Maxim Integrated MAX20056BEVKIT#															120 mA								MAX20056B	Board	36 V	4.5 V	Dimmable	6	Non-Isolated	6
Analog Devices Inc./Maxim Integrated MAX20056BAUGA/V+	AEC-Q100	DC DC Controller	PWM	6	2.2 MHz	400 kHz	24-TSSOP 24-TSSOP-EP	0.173 in	Exposed Pad	4.4 mm	42 V	SEPIC Step-Down (Buck) Step-Up (Boost)	Automotive	4.5 V	120 mA	125 °C	-40 °C			No	Surface Mount	5 VDC

Catalog

Integrated, 6-Channel High-Brightness LED Driver with Very Wide PWM Dimming Ratio and Phase Shifting for Automotive Displays

Description

The MAX20056B is a 6-channel LED driver that integrates a DC-DC switching boost/SEPIC controller and six 120mA current sinks. A current-mode switching DC-DC controller provides the necessary voltage to the strings of HB LEDs.An internal current-mode switching DC-DC controller supports boost, SEPIC, or coupled-inductor buck-boost topologies and operates in a programmable frequency range between 400kHz and 2.2MHz. Current-mode control provides fast response and simplifies loop compensation. An adaptive output-voltage-adjustment scheme minimizes power dissipation in the LED current sinks.An external resistor sets the channel currents to the same value in the range of 20mA to 120mA. The device features logic-controlled pulse-width modulation (PWM) dimming with minimum pulse widths as low as 500ns, and either phase-shifted LED strings or standard dimming control. When phase shifting is enabled, each string is turned on at a different time, reducing the input and output ripple, as well as audible noise. With phase shifting disabled, each current sink is turned on at the same time and allows parallel connection of current sinks for > 120mA per string.ApplicationsAutomotive Central Information DisplaysAutomotive DashboardsAutomotive Head-Up DisplaysAutomotive Navigation Systems