購(gòu)物車0
The MIC2287C 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 MIC2287C easily drives a string of up to eight white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors.
The MIC2287C 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 MIC2287C 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 MIC2287C is available in low profile Thin SOT-23 5-lead and an 8-lead 2mm x 2mm MLF??package options. The MIC2287C 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
Over-temperature protection
UVLO
Low profile Thin SOT-23-5 package option
8-lead 2mm x 2mm MLF?package option
-40°C to +125°C junction temperature range
For higher performance specifications see the MIC2287

MIC2287C 封裝圖

MIC2287C 封裝圖
| 型號(hào) | 制造商 | 描述 | 購(gòu)買 |
|---|---|---|---|
| MIC2287C-34YML-TR | CBI | BC846PN BB | 立即購(gòu)買 |
| MIC2287C-24YML-TR | Hynix | H5AN8G6NCJR-VKC | 立即購(gòu)買 |
| MIC2287C-15YML-TR | TXGA | FWF20017-D12B22W5B | 立即購(gòu)買 |
| MIC2287CYD5-TR | Vishay Sprague | 鉭電容 軸向 | 立即購(gòu)買 |
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