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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MIC3202 датащи(PDF) 3 Page - Micrel Semiconductor |
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MIC3202 датащи(HTML) 3 Page - Micrel Semiconductor |
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3 / 19 page  Micrel, Inc. MIC3202 September 2010 3 M9999-091710-A Absolute Maximum Ratings (1, 2) VIN to PGND .................................................. −0.3V to +42V VLX to PGND........................................ −0.3V to (VIN + 0.6V) VCS to PGND ....................................... −0.3V to (VIN + 0.3V) VEN to AGND ....................................... −0.3V to (VIN + 0.3V) VDIM to AGND ...................................... −0.3V to (VIN + 0.3V) VCC to PGND ................................................ −0.3V to +6.0V PGND to AGND .......................................... −0.3V to + 0.3V Junction Temperature ................................................ 150 °C Storage Temperature Range .................... −60°C to +150°C Lead Temperature (Soldering, 10sec) ....................... 260 °C Operating Ratings (3) Supply Voltage (VIN).......................................... 6.0V to 37V Enable Voltage (VEN) .............................................. 0V to VIN Dimming Voltage (VDIM).................................................................0V to VIN Junction Temperature (TJ) ........................ −40°C to +125°C Junction Thermal Resistance SOIC ( θJA)..........................................................41°C/W SOIC ( θJC).......................................................14.7°C/W Electrical Characteristics (4) VIN = VEN = VDIM = 12V; CVCC = 1.0µF; TJ = 25°C, bold values indicate −40°C ≤ TJ ≤ +125°C; unless noted. Symbol Parameter Condition Min. Typ. Max. Units Input Supply VIN Input Voltage Range (VIN) 6.0 37.0 V IS Supply Current LX Pin = open 1.2 1.75 mA ISD Shut Down Current VEN = 0V; TJ = from -40ºC to 85ºC 0.05 5 µA UVLO VIN UVLO Threshold VIN Rinsing 3.2 4 4.5 V UVLOHYS VIN UVLO Hysteresis 500 mV VCC Supply VCC VCC Output Voltage VCS = VIN = 12V, ICC = 10mA 4.5 5 5.5 V Current Limit VCS(MAX) Current-Sense Upper Threshold VCS(MAX ) = VIN − VCS 199 212 225 mV VCS(MIN) Current-Sense Lower Threshold VCS(MIN ) = VIN − VCS 165 177 189 mV VCS Hysteresis 35 mV VCS Rising 60 Current-Sense Response Time VCS Falling 40 ns VCSHYS Current-Sense Input Current VIN - VCS = 200mV 3 µA Frequency FMAX Maximum Switching Frequency 1 MHz Dithering (MIC3202) VDITH VCS Hysteresis Dithering Range (5) ±6 mV FDITHER Frequency Dithering Range (5) % of Switching Frequency ±12 % Enable Input ENHI EN Logic Level High 2.0 V EN Logic Level Low 0.4 V VEN = 12V 30 60 EN Bias Current VEN = 0V 0.1 1 µA ENLO Start-up Time From EN Pin going high to LX going low 30 µs |
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