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76 pcs
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76 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LT3745IUJ#PBF is a 16-channel LED driver controller designed for high-performance LED lighting applications. It integrates a step-down (buck) switching regulator topology and supports PWM dimming for precise brightness control. Each of the 16 channels can deliver up to 75mA of output current, with typical LED current matching of ±1% and a minimum LED on-time of 0.5µs.
The device operates over a wide input voltage range of 42V to 55V, with a switching frequency adjustable from 200kHz to 1MHz. It employs a fully-buffered, skew-balanced, cascadable serial data interface operating at 30MHz, enabling efficient daisy-chaining of multiple devices. The operating junction temperature range is -40°C to 125°C, making it suitable for industrial and automotive environments.
The LT3745IUJ#PBF is offered in a 40-lead WFQFN package with an exposed pad (6mm x 6mm) for surface-mount assembly. The compact package and high integration reduce board space and simplify thermal management. This component is ideal for applications requiring multiple independent LED strings with accurate current regulation.
| Qty | Low | High |
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| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 42V to 55V.
It is available in a 40-lead WFQFN package with an exposed pad (6mm x 6mm), also referred to as 40-QFN (6x6).
The operating junction temperature range is -40°C to 125°C.
It supports 16 independent LED channels.
It uses PWM dimming.
The switching frequency is adjustable from 200kHz to 1MHz.
Typical LED current matching is ±1% (maximum ±3% at 50mA).