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Overview
| Topology | Buck Converter |
| Input voltage | 44-52 V |
| Switching frequency | 300-4000 kHz |
| Output 1 | 34 V / 0.75 A |
| Output 2 | 34 V / 0.75 A |
| Output 3 | 34 V / 0.75 A |
| Output 4 | 34 V / 0.75 A |
Description
The LT®3966 is an I2C programmable monolithic boost LED driver with four independent channels. Each channelprovides a 60V current mode boost converter with an internal 1.6A DMOS power switch, as well as internal and external analog and PWM dimming features. I2C programmable features include a 13-bit (8192:1) digital PWM generator, 8-bit analog dimming DAC, and flexible fault reporting and handling.
Features
- Four Independent DC/DC Channels
- I2C Programmable
- 8192:1 True Color PWM™ Dimming
- 8-Bit Analog Dimming Pin Scaled by DAC
- 11-Channel, 8-Bit ADC with 2 External Inputs
- 1.6A, 60V Internal DMOS Switches
- Input Voltage: 3V to 60V
- Output Voltage and Current Monitoring to 60V
- High Side PMOS Disconnect and PWM Switch Driver
- Adjustable Frequency: 300kHz to 4MHz with Optional Frequency Synchronization
- Thermally Enhanced 6mm × 6mm 40-Lead QFN Package
- AEC-Q100 Qualification in Progress
Typical applications
- Heads Up Displays
- Backlighting
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74437349680 | SPEC | 8 files | WE-LHMI SMT Power Inductor | 68 | 1.65 | 1.45 | 3.8 | 445 | 3.5 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74437349680 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | Samples |
|---|