Overview
The HVLED007TR is a current-mode Power Factor Correction (PFC) controller designed by STMicroelectronics for isolated high power factor flyback converters operated in transition mode (also known as quasi-resonant operation). This IC is specifically tailored for both indoor and outdoor solid-state lighting applications, offering extended temperature range operation down to -40 °C with guaranteed electrical specifications.
The key feature of the HVLED007TR is its proprietary Input Current Shaper (ICS) circuit, which enables the flyback converters to draw a theoretically sinusoidal input current from the power line, resulting in low Total Harmonic Distortion (THD) of the input current. The IC also includes protection features for overload, short-circuit, and overvoltage conditions, making it an excellent solution for EN61000-3-2 compliant Switch-Mode Power Supplies (SMPS) up to 100 W.
Key Specifications
| Parameter | Test Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | Operating range | 10.5 | - | 22.5 | V |
| Turn-on Threshold (VCCon) | Positive-going | 11.7 | 12.5 | 13.3 | V |
| Turn-off Threshold (VCCoff) | Negative-going | 9.5 | 10 | 10.5 | V |
| Start-up Current (Istart-up) | Before turn-on, Vcc = 11 V | - | - | 60 | μA |
| Quiescent Current (Iq) | After turn-on, VMULT = 1 V, VCOMP = VCOMPsat.hi, VO = VOL | 2.5 | 3.9 | - | mA |
| Gate Driver Output Current | Source/Sink | -600/+800 | - | - | mA |
| Operating Temperature Range | - | -40 | - | 150 | °C |
| Package | - | - | - | SO-8 | - |
Key Features
- Transition-mode (quasi-resonant) control of flyback PFC pre-regulators
- Proprietary input current shaper for minimum THD of line current
- Control input for isolated feedback and optocoupler driving
- Output overvoltage protection
- Overload and short-circuit protection
- Low start-up current (≤ 60 μA) and low quiescent current (≤ 4 mA)
- Digital leading-edge blanking on current sense
- Totem-pole gate driver with UVLO pull-down and voltage clamp (-600/+800 mA)
- SO8 package
Applications
- AC-DC LED drivers for domestic, commercial, and industrial lighting
- Street lighting
- EN61000-3-2 compliant SMPS up to 100 W
Q & A
- What is the primary function of the HVLED007TR?
The HVLED007TR is a current-mode PFC controller designed for isolated high power factor flyback converters operated in transition mode.
- What is the significance of the Input Current Shaper (ICS) circuit?
The ICS circuit enables the flyback converters to draw a theoretically sinusoidal input current from the power line, resulting in low Total Harmonic Distortion (THD) of the input current.
- What are the protection features included in the HVLED007TR?
The IC includes protection features for overload, short-circuit, and overvoltage conditions.
- What is the operating temperature range of the HVLED007TR?
The operating temperature range is from -40 °C to 150 °C.
- What is the package type of the HVLED007TR?
The package type is SO-8.
- What are the typical applications of the HVLED007TR?
Typical applications include AC-DC LED drivers for domestic, commercial, and industrial lighting, as well as street lighting and EN61000-3-2 compliant SMPS up to 100 W.
- What is the maximum gate driver output current of the HVLED007TR?
The gate driver output current is -600/+800 mA.
- How does the HVLED007TR achieve low THD?
The IC achieves low THD through its proprietary Input Current Shaper (ICS) circuit, which ensures a sinusoidal input current.
- Can the HVLED007TR be used in both primary and secondary regulated voltage loops?
- What is the quiescent current of the HVLED007TR?
The quiescent current is ≤ 4 mA.
