поискавой системы для электроныых деталей |
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MIC2172 датащи(PDF) 3 Page - Micrel Semiconductor |
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MIC2172 датащи(HTML) 3 Page - Micrel Semiconductor |
3 / 17 page April 2005 3 M9999-042205 MIC2172/3172 Micrel, Inc. Electrical Characteristics MIC2172 Note 1, 3. Unless otherwise specified, V IN = 5V. Parameter Conditions Min Typ Max Units Reference Section Pin 2 tied to pin 3 Feedback Voltage (V FB) 1.220 1.240 1.264 V 1.214 1.274 V Feedback Voltage 3V ≤ VIN ≤ 40V 0.03 %/V Line Regulation Feedback Bias Current (I FB) 310 750 nA 1100 nA Error Amplifier Section Transconductance (∆ICOMP/∆VFB) ∆ICOMP = ±25µA 3.0 3.9 6.0 µA/mV 2.4 7.0 µA/mV Voltage Gain (∆VCOMP/∆VFB) 0.9V ≤ VCOMP ≤ 1.4V 500 800 2000 V/V Output Current V COMP = 1.5V 125 175 350 µA 100 400 µA Output Swing High Clamp, V FB = 1V 1.8 2.1 2.3 V Low Clamp, V FB = 1.5V 0.25 0.35 0.52 V Compensation Pin Duty Cycle = 0 0.8 0.9 1.08 V Threshold 0.6 1.25 V Output Switch Section ON Resistance I SW = 1A, VFB = 0.8V 0.76 1 Ω 1.1 Ω Current Limit Duty Cycle = 50%, T J ≥ 25°C 1.25 3 A Duty Cycle = 50%, T J < 25°C 1.25 3.5 A Duty Cycle = 80% Note 2 1 2.5 A Breakdown Voltage (BV) 3V ≤ VIN ≤ 40V 65 75 V I SW = 5mA Absolute Maximum Ratings MIC2172 Input Voltage ................................................................. 40V Switch Voltage .............................................................. 65V Sync Current .............................................................. 50mA Feedback Voltage (Transient, 1ms) ........................... ±15V Operating Temperature Range 8-pin PDIP ................................................. –40 to +85°C 8-pin SOIC ................................................ –40 to +85°C Junction Temperature .............................. –55°C to +150°C Thermal Resistance θJA 8-pin PDIP .................................................130°C/W θJA 8-pin SOIC .................................................120°C/W Storage Temperature ............................... –65°C to +150°C Soldering (10 sec.) .................................................. +300°C |
Аналогичный номер детали - MIC2172_05 |
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Аналогичное описание - MIC2172_05 |
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