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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
- Backlighting
- Heads Up Displays
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74437349680 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LHMI SMT Power Inductor | 68 | 1.65 | 1.45 | 3.8 | 445 | 3.5 | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74437349680 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC max. (mΩ) | fres (MHz) | Mount | Samples |
|---|