LT3952AEFE#PBF
Active60V LED DRIVER WITH 4A SWITCH CURRENT
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LT3952AEFE#PBF
Active60V LED DRIVER WITH 4A SWITCH CURRENT
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Technical Specifications
Parameters and characteristics for this part
| Specification | LT3952AEFE#PBF |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 4 A |
| Dimming | Analog, PWM |
| Frequency [Max] | 3 MHz |
| Frequency [Min] | 215 kHz |
| Grade | Automotive |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | Exposed Pad, 28-TSSOP |
| Package / Case [custom] | 4.4 mm |
| Package / Case [x] | 0.173 in |
| Supplier Device Package | 28-TSSOP-EP |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 60 V |
| Voltage - Supply (Max) [Max] | 42 V |
| Voltage - Supply (Min) [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 10.09 | |
| 10 | $ 7.01 | |||
| 25 | $ 6.22 | |||
| 100 | $ 5.33 | |||
| 250 | $ 4.91 | |||
| 500 | $ 4.64 | |||
| 1000 | $ 4.43 | |||
Description
General part information
LT3952A Series
The LT3952A is a current mode step-up DC/DC converter with an internal, 60V, 80mΩ DMOS power switch. The LT3952A is specifically designed to drive high power LEDs in multiple configurations. It combines input and output current regulation loops with output voltage regulation to operate as a flexible current/voltage source.Programmable switching frequency with optional spread-spectrum modulation provides EMI reduction, while still allowing optimization of the external components for efficiency or component size. The LED current is programmable with an external sense resistor, and can be adjusted from zero to full scale with a voltage at the CTRL pin. The external PWM input provides LED ON/OFF control and 4000:1 dimming ratio, and an internal PWM generator delivers the efficiency of PWM dimming to standalone or I/O limited applications. The LT3952A is available in the thermally enhanced 28-lead TSSOP package.ApplicationsDisplay BacklightingAutomotive and Avionic LightingAccurate Current-Limited Voltage Regulators
Documents
Technical documentation and resources