Microchip MIC2287YD5-TR
Manufacturer No:
MIC2287YD5-TR
Manufacturer:
Package:
SOT-23-5 Thin, TSOT-23-5
Description:
White LED Driver w/ 34V OVP
Quantity:
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MIC2287YD5-TR Information
Microchip MIC2287YD5-TR technical specifications, attributes, parameters and parts with similar specifications to Microchip MIC2287YD5-TR.
- Type
- Parameter
- Topology
- Boost
- +Vin min (V)
- 2.5
- +Vin max (V)
- 10
- Output Current
- 2A BJT
- Dimming
- PWM / Analog
- Package
- TSOT, VDFN
- Product Type
- LED Backlight
- VOUT
- 34
- llim Typ (A)
- 0.75
- llim Max (A)
- 0
- Type
- Parameter
- lq Typ
- 2.5mA
- Vfb (V)
- 0.095
- Tol Typ %
- ±5
- Duty Cycle Max
- 0.9
- Freq (Hz)
- 1.2M
- OVP
- Yes
- VEN (V)
- 1.5
- EN
- Yes
- Soft Start
- Yes
- UVLO Typ (V)
- 2.1
Download datasheets and manufacturer documentation for Microchip MIC2287YD5-TR.
Data Sheets:
The MIC2287 is a 1.2MHz pulse width modulated (PWM), boost-switching regulator that is optimized for constant-current, white LED driver applications. With a maximum output voltage of 34V and a switch current of over 500mA, the MIC2287 easily drives a string of up to eight white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors.
The MIC2287 implements a constant frequency, 1.2MHz PWM control scheme. The high frequency PWM operation saves board space by reducing external component sizes. The added benefit of the constant frequency PWM scheme as opposed to variable frequency topologies is much lower noise and input ripple injected back to the battery source.
To optimize efficiency, the feedback voltage is set to only 95mV. This reduces the power dissipation in the current set resistor and allows the lowest total output voltage, hence minimal current draw from the battery.
The MIC2287 is available with three levels of overvoltage protection, 15V, 24V, and 34V. This allows designers to choose the smallest possible external components with the appropriate voltage ratings for their applications.
The MIC2287 has a junction temperature range of -40°C to +125°C.
- 2.5V to 10V input voltage
- Output voltage up to 34V
- Over 500mA switch current
- 1.2 MHz PWM operation
- 95mV feedback voltage
- Output over voltage protection (OVP)
- Options for 15V, 24V, and 34V OVP
- <1% line and load regulation
- <1µA shutdown current
- Over-temperature protection
- UVLO
- Low profile Thin SOT-23-5 package option
- -40°C to +125°C junction temperature range
MIC2287YD5-TR Relevant information
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