MAX20446BATG/V+T
ActiveAUTOMOTIVE 6-CHANNEL BACKLIGHT DRIVER WITH BOOST/SEPIC CONTROLLER AND I2C INTERFACE
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MAX20446BATG/V+T
ActiveAUTOMOTIVE 6-CHANNEL BACKLIGHT DRIVER WITH BOOST/SEPIC CONTROLLER AND I2C INTERFACE
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX20446BATG/V+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 | 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) |
| Type | DC DC Controller |
| Voltage - Output | 52 V |
| Voltage - Supply (Max) [Max] | 36 V |
| Voltage - Supply (Min) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 8.20 | |
| 10 | $ 5.89 | |||
| 100 | $ 4.70 | |||
| 500 | $ 4.23 | |||
| 1000 | $ 4.09 | |||
| Digi-Reel® | 1 | $ 8.20 | ||
| 10 | $ 5.89 | |||
| 100 | $ 4.70 | |||
| 500 | $ 4.23 | |||
| 1000 | $ 4.09 | |||
| N/A | 2500 | $ 8.33 | ||
| 7500 | $ 8.33 | |||
| Tape & Reel (TR) | 2500 | $ 4.00 | ||
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
