Product Details
| DESCRIPTION LED Driver with Integrated Schottky Diode The LT®3519/LT3519-1/LT3519-2 are fi xed frequency step-up DC/DC converters designed to drive LEDs. They feature an internal 45V, 750mA low side switch and Schottky diode. Combining a traditional voltage feedback and a unique rail-to-rail current sense feedback allows these converters to operate as a constant-voltage source or constant-current source. Internal compensation simplifies applications. FEATURES ■ Up to 3000:1 True Color PWM™ Dimming ■ Wide Input Voltage Range Operation from 3V to 30V Transient Protection to 40V ■ Rail-to-Rail LED Current Sense from 0V to 45V ■ 45V, 750mA Internal Switch ■ Internal Schottky Diode ■ Constant-Current and Constant-Voltage Regulation ■ Boost, SEPIC, Buck-Boost Mode or Buck Mode Topology ■ Open LED Protection and Open LED Status Pin ■ Programmable Undervoltage Lockout with Hysteresis ■ Fixed Frequency: 400kHz (LT3519), 1MHz (LT3519-1), 2.2MHz (LT3519-2) ■ Internal Compensation ■ CTRL Pin Provides Analog Dimming ■ Low Shutdown Current: <1μA ■ 16-Lead MSOP Package APPLICATIONS ■ Automotive ■ Industrial ■ Constant Current Source ■ Current Limited Constant Voltage Source |
Product Description
| TYPE | DESCRIPTION |
| ANSC PART# | ANSC - LT3519IMS-1#PBF |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| LED Drivers | |
| Manufacturer | Original |
| Series | - |
| Packaging | Tube |
| Part Status | Active |
| Type | DC DC Regulator |
| Topology | SEPIC, Step-Down (Buck), Step-Up (Boost) |
| Internal Switch(s) | Yes |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 3V |
| Voltage - Supply (Max) | 30V |
| Voltage - Output | - |
| Current - Output / Channel | 750mA (Switch) |
| Frequency | 1MHz |
| Dimming | Analog, PWM |
| Applications | Lighting |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 16-TFSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 16-MSOP |
| Base Product Number | LT3519 |
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