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MIC2590B-2YTQ Datasheet(PDF) 8 Page - Micrel Semiconductor |
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MIC2590B-2YTQ Datasheet(HTML) 8 Page - Micrel Semiconductor |
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Micrel, Inc. MIC2590B September 2008 8 M9999-091808 Symbol Parameter Condition Min Typ Max Units ILIM(AUX) Regulated Current after Transient From end of ISC(TRAN) to CFILTER Time Out 0.375 0.7 1.35 A RDISCH R(12V) R(12MV) R(3V) R(5V) R(3VAUX) Output Discharge Resistance 12VOUT[A/B] 12MVOUT[A/B] 3VOUT[A/B] 5VOUT[A/B] 3VAUX[A/B] 12VOUT[A/B] = 6.0V 12MVOUT[A/B] = –6.0V 3VOUT[A/B] = 1.65V 5MVOUT[A/B] = 2.5V 5VOUT[A/B] = 1.65V 1600 600 150 150 430 Ω Ω Ω Ω Ω tOFF(3) tOFF(5) Current Limit Response Time for 3.3V and 5V Outputs, Figure 2 MIC2590B-2 with CGATE = 10nF, VIN – VSENSE = 200mV 1 µs TSC(TRAN) VAUX Current Limiter Response Time, Figure 5 VAUX[A/B] = 0V, Note 5 33 µs tOFF(12) 12V Current Limit Response Time, Figure 3 12VOUT[A/B] = 0V, Note 5 1 µs tOFF(12M) –12V Current Limit Response Time, Figure 3 12MVOUT[A/B] = 0V, Note 5 1 µs TPROP(3VFAULT) Delay from 3V[A/B] overcurrent-limit to FAULT Output MIC2590B-2, VSENSE – VTHLIMIT = 200mV, CFILTER = open 1 µs TPROP(5VFAULT) Delay from 5V[A/B] overcurrent-limit to FAULT Output MIC2590B-2, VSENSE – VTHLIMIT = 200mV, CFILTER = open 1 µs tW ON[A/B], AUXEN[A/B] Pulse Width Note 5 100 ns tPOR MIC2590B Power-On Reset Time after VSTBY becomes valid Note 5 500 µs 8-Bit Analog to Digital Converter Total Unadjusted Error Voltage, All Outputs Current, 3VOUT[A/B]/5VOUT [A/B] Current, VAUX[A/B], 12VOUT[A/B], 12MVOUT [A/B] Measured as voltage across corresponding external RSENSE –3 –3 ±3 +3 +3 % % % tCONV Conversion Time 60 100 ms VAUXA VAUXB Resolution Specifications: Full Scale Voltage LSB of Voltage Full Scale Current LSB of Current 3.85 15.1 375 1.47 V mV mA mA 3VOUTA 3VOUTB Full Scale Voltage LSB of Voltage Full Scale Current LSB of Current External RSENSE = 6.00mΩ 3.85 15.1 11.6 45.5 V mV A mA 5VOUTA 5VOUTB Full Scale Voltage LSB of Voltage Full Scale Current LSB of Current External RSENSE = 6.00mΩ 5.89 23.1 6.96 27.3 V mV A mA |
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