仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Applications | Photoflash Capacitor Charger |
| Current-Supply | 5.5mA |
| Voltage-Supply | 4.75V ~ 24V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 20-TSSOP (0.173, 4.40mm Width) Exposed Pad |
概要
Description
LT3751EFE#TRPBF is a high‑voltage, constant‑current LED driver controller from Linear Technology (now Analog Devices). It drives LED strings from a wide input source by regulating current through an external N‑channel MOSFET in boost, buck, or buck‑boost configurations, using a sense resistor to set the LED current.
Key features: wide input range, current‑mode control, adjustable LED current via RSENSE, soft‑start, PWM or DC dimming, and protections (overvoltage, overcurrent, undervoltage lockout, thermal shutdown). It supports single‑string or multi‑string LED applications with good efficiency.
The suffix 'EFE' denotes the device/package option; '#TRPBF' indicates Tape‑and‑Reel, Pb‑free packaging.
Typical uses: LED backlighting, signage, and auxiliary LED drivers in automotive and industrial equipment.
For exact electrical specs, pinout, and reference designs, refer to the LT3751 datasheet and the product page for the EFE/TRPBF variant.
Key features: wide input range, current‑mode control, adjustable LED current via RSENSE, soft‑start, PWM or DC dimming, and protections (overvoltage, overcurrent, undervoltage lockout, thermal shutdown). It supports single‑string or multi‑string LED applications with good efficiency.
The suffix 'EFE' denotes the device/package option; '#TRPBF' indicates Tape‑and‑Reel, Pb‑free packaging.
Typical uses: LED backlighting, signage, and auxiliary LED drivers in automotive and industrial equipment.
For exact electrical specs, pinout, and reference designs, refer to the LT3751 datasheet and the product page for the EFE/TRPBF variant.
Features
Key features of LT3751EFE#TRPBF (high‑voltage LED driver)
- High-voltage, buck/boost (constant-current) LED driver for automotive/battery apps
- Wide input range and flexibility to drive LED strings from varying sources
- LED current set by an external sense resistor; constant-current regulation
- Requires external MOSFET switch; efficient switching topology
- Dimming: supports PWM dimming and additional analog/dimming control
- Fast protection: undervoltage/overvoltage protection, overcurrent protection
- Thermal shutdown protection for safe operation
- Open‑LED protection with hiccup fault behavior
- Fault/status indication and enable/disable control
- Suitable packaging: 8‑lead device with RoHS/TRPBF options (Tape-and-Reel)
Note: For exact electrical limits (input range, LED current range, dimming specifics) refer to the datasheet.
- High-voltage, buck/boost (constant-current) LED driver for automotive/battery apps
- Wide input range and flexibility to drive LED strings from varying sources
- LED current set by an external sense resistor; constant-current regulation
- Requires external MOSFET switch; efficient switching topology
- Dimming: supports PWM dimming and additional analog/dimming control
- Fast protection: undervoltage/overvoltage protection, overcurrent protection
- Thermal shutdown protection for safe operation
- Open‑LED protection with hiccup fault behavior
- Fault/status indication and enable/disable control
- Suitable packaging: 8‑lead device with RoHS/TRPBF options (Tape-and-Reel)
Note: For exact electrical limits (input range, LED current range, dimming specifics) refer to the datasheet.
Pinout
- Pin count: 16 pins
- Function: High-voltage, current‑mode switching regulator/LED driver controller that drives an external MOSFET to regulate LED current (buck/boost capable), with feedback, enable, and dimming controls.
- Function: High-voltage, current‑mode switching regulator/LED driver controller that drives an external MOSFET to regulate LED current (buck/boost capable), with feedback, enable, and dimming controls.
Manufacturer
- Manufacturer: Analog Devices, Inc. (ADI). The LT37xx family originally came from Linear Technology, which ADI acquired in 2017.
- What kind of company: A global semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits (e.g., power management, data converters, op-amps, etc.).
- What kind of company: A global semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits (e.g., power management, data converters, op-amps, etc.).
Application
Applications areas for LT3751EFE#TRPBF:
- High-voltage DC-DC controllers using external MOSFETs (buck, boost, and buck-boost topologies)
- Automotive power electronics (on-board DC-DC converters, battery charging, load-dump ruggedized supplies)
- Industrial power supplies and rugged PV/energy systems
- LED lighting drivers (constant-current)
- Solar/off-grid front-ends and energy-storage chargers
- Telecom/datacom and other high-efficiency DC-DC converters
- High-voltage DC-DC controllers using external MOSFETs (buck, boost, and buck-boost topologies)
- Automotive power electronics (on-board DC-DC converters, battery charging, load-dump ruggedized supplies)
- Industrial power supplies and rugged PV/energy systems
- LED lighting drivers (constant-current)
- Solar/off-grid front-ends and energy-storage chargers
- Telecom/datacom and other high-efficiency DC-DC converters
Package
LT3751EFE#TRPBF comes in a 16‑lead TSSOP package (Pb‑free). The suffix TRPBF indicates Tape‑and‑Reel, Pb‑Free packaging.
