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LC5200 Series: LED Drivers (PDF)
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LC5200 Series: Allegro MicroSystems Introduces New Off-Line LED Driver IC Series
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LC5200 Series
LED Drivers
Features
- Supply voltage, VBB, 450 V maximum, 25 to 400 V recommended; Note: lowest voltage can vary depending on LED loads
- Output current IO(max) options:
- 0.5 A, LC5205D
- 1.0 A, LC5210D
- Constant current control circuit:
- Fixed off-time PWM constant current control, off-time adjustable by external components
- Externally adjustable output current by input voltage to REF pin
- Output current dimming by external PWM signal; low signal to TOFF pin shuts off output current, and PWM signal input to that pin enables dimming
- Undervoltage lockout protection (UVLO)
- Overcurrent protection (OCP); latched in response to the short-to-GND condition
- Thermal Shutdown protection (TSD); protects IC from damage due to excess temperature, auto-restart when temperature drops below threshold
Description
LC5200 series is an off-line LED driver IC which includes both a main controller integrated circuit (MIC) and a power MOSFET. Its high voltage capability allows direct connection to a wide range of supply voltages ranging from 25 to 400 V (recommended). The LC5200 uses constant current mode to drive LEDs. The package is a standard 8-pin DIP, with pin 7 removed for greater creepage distance from the supply pin.
Functional Block Diagram
| Part Number | Package Type | RoHS Compliant |
Part Composition/ RoHS Data |
Temperature | Comments | Distributor Stock | Samples |
|---|---|---|---|---|---|---|---|
| LC5205D | 7-pin DIP | Yes | -- | -40 °C to 105 °C | new |
Contact Local Sales Representative or check distributor stock |
|
| LC5210D | 7-pin DIP | Yes | -- | -40 °C to 105 °C | new |
Contact Local Sales Representative or check distributor stock |
Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.