LT3491ESC8

LT3491ESC8 is an 8-pin, high-voltage, constant-current LED driver from Linear Technology (Analog Devices) designed to drive one LED string from a higher-voltage supply. It is a buck-type regulator that uses an external inductor, diode, and sense resistor to set and regulate LED current. The LED current is programmed by the sense resistor; a separate DIM or CTRL input allows PWM or analog dimming. It provides protections such as shorted/open LED, overtemperature, and undervoltage. The ESC8 suffix denotes the package/reel code (8-pin MSOP/SOIC). Typical apps: automotive lighting, display backlighting, LED stacks that require precise current with high input voltage. External components: one inductor, one diode, one sense resistor, plus input/output capacitors. The device integrates the control circuitry and high-voltage switch; the rest is external passive components to set current and regulate the LED string. For exact electrical specs, dimming range, and recommended application circuit, consult the LT3491 datasheet and the ESC8 package variant documentation.

LT3491ESC8 is an LED driver in an 8-pin package. Key features (typical for LT3491 family):
- High-efficiency constant-current LED drive
- External sense resistor sets LED current (programmable)
- PWM dimming input plus analog dimming capability
- Wide input voltage range (suitable for battery/single- to multi-cell supplies)
- Protection: open/short LED protection, overcurrent protection, thermal shutdown
- Soft-start and current-limit for smooth operation
- High switching frequency for small external components
- Small 8-pin package (ESC8 variant suitable for compact designs)
Note: exact electrical specs (range, current, frequency) can vary by variant. For precise numbers, please refer to the LT3491ESC8 datasheet.

LT3491ESC8 comes in an 8-pin MSOP package (MSOP-8).

- Pin count: 8 pins (MSOP-8/DFN-8 package, LT3491ESC8 suffix).
- Function: High-efficiency switched-mode LED driver (constant-current LED driver) used to drive LED strings from a supply, typically via a boost/buck-boost DC-DC topology.

- Manufacturer: Analog Devices, Inc. (the LT3491 line originated from Linear Technology, which Analog Devices acquired in 2017).
- Company type: An American multinational semiconductor company that designs and manufactures analog, mixed‑signal, and power‑management integrated circuits.

LT3491ESC8 is a three-channel high-voltage LED driver with an integrated DC-DC converter. Applications: LCD backlighting (TVs/monitors), signage and architectural lighting, automotive interior/exterior lighting, portable/battery-powered LED lighting, and RGB/color-tunable or decorative LED lighting.