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ADI LT3746EUHH#TRPBF product image
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ADI LT3746EUHH#TRPBF

Manufacturer
ADI
MPN
LT3746EUHH#TRPBF
LCSC Part #
C671360
Packaging
QFN-56-EP(5x9)
Customer #
Key Attributes
200kHz~1MHz 32 DC-DC 30mA 6V~55V QFN-56-EP(5x9) LED Drivers RoHS
Datasheetpdf iconADI LT3746EUHH#TRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 9.0355$ 9.04
200+$ 3.4976$ 699.52
500+$ 3.3741$ 1687.05
1,000+$ 3.3139$ 3313.90
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers
ManufacturerADI
PackagingQFN-56-EP(5x9)
Frequency - Switching200kHz~1MHz
DimmingPWM;Analog
Voltage - Input(AC)-
Number of Channels32
TypeDC-DC
Switch tube (built-in/external)-
Output Voltage-
Operating Temperature-40℃~+125℃
Output Current30mA
FeaturesBuilt-in soft-start;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP)
TopologyBuck
Constant Current Accuracy-
Voltage - Input(DC)6V~55V
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Introduction

AI Translation

The LT3746 integrates a 32-channel LED driver with a 55V buck controller. The LED driver lights up to 30mA/13V of LEDs in series per channel, and the buck controller generates an adaptive bus voltage supplying the parallel LED strings. Each channel has individual 6-bit dot correction current adjustment and 12-bit grayscale PWM dimming. Both dot correction and grayscale are accessible via a serial data interface in TTL/CMOS logic. The LT3746 performs full diagnostic and protection against open/short LED and overtemperature fault. The fault status is sent back through the serial data interface. The 30MHz fully-buffered, skew-balanced, cascadable serial data interface makes the chip extremely suitable for large screen LCD dynamic backlighting and mono-, multi-, full-color LED displays.

Features

AI Translation
  • 6V to 55V Power Input Voltage Range
  • 32 Independent LED Outputs up to 30mA/13V
  • 6-Bit Dot Correction Current Adjustment
  • 12-Bit Grayscale PWM Dimming
  • 0.5µs Minimum LED On Time
  • Adaptive LED Bus Voltage for High Efficiency
  • Cascadable 30MHz Serial Data Interface
  • Full Diagnostic and Protection: Individual Open/Short LED and Overtemperature Fault

Applications

AI Translation
  • Large Screen Display LED Backlighting
  • Mono-, Multi-, Full-Color LED Displays
  • LED Billboards and Signboards