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MC34262DR2G Scheda tecnica(PDF) 2 Page - ON Semiconductor |
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MC34262DR2G Scheda tecnica(HTML) 2 Page - ON Semiconductor |
2 / 19 page MC34262, MC33262 http://onsemi.com 2 MAXIMUM RATINGS Rating Symbol Value Unit Total Power Supply and Zener Current (ICC + IZ) 30 mA Output Current, Source or Sink (Note 1) IO 500 mA Current Sense, Multiplier, and Voltage Feedback Inputs Vin −1.0 to +10 V Zero Current Detect Input High State Forward Current Low State Reverse Current Iin 50 −10 mA Power Dissipation and Thermal Characteristics P Suffix, Plastic Package, Case 626 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction−to−Air D Suffix, Plastic Package, Case 751 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction−to−Air PD RqJA PD RqJA 800 100 450 178 mW °C/W mW °C/W Operating Junction Temperature TJ +150 °C Operating Ambient Temperature (Note 3) MC34262 MC33262 TA 0 to + 85 − 40 to +105 °C Storage Temperature Tstg − 65 to +150 °C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. ELECTRICAL CHARACTERISTICS (VCC = 12 V (Note 2), for typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies (Note 3), unless otherwise noted.) Characteristic Symbol Min Typ Max Unit ERROR AMPLIFIER Voltage Feedback Input Threshold TA = 25°C TA = Tlow to Thigh (VCC = 12 V to 28 V) VFB 2.465 2.44 2.5 − 2.535 2.54 V Line Regulation (VCC = 12 V to 28 V, TA = 25°C) Regline − 1.0 10 mV Input Bias Current (VFB = 0 V) IIB − − 0.1 − 0.5 mA Transconductance (TA = 25°C) gm 80 100 130 mmho Output Current Source (VFB = 2.3 V) Sink (VFB = 2.7 V) IO − − 10 10 − − mA Output Voltage Swing High State (VFB = 2.3 V) Low State (VFB = 2.7 V) VOH(ea) VOL(ea) 5.8 − 6.4 1.7 − 2.4 V OVERVOLTAGE COMPARATOR Voltage Feedback Input Threshold VFB(OV) 1.065 VFB 1.08 VFB 1.095 VFB V MULTIPLIER Input Bias Current, Pin 3 (VFB = 0 V) IIB − − 0.1 − 0.5 mA Input Threshold, Pin 2 Vth(M) 1.05 VOL(EA) 1.2 VOL(EA) − V 1. Maximum package power dissipation limits must be observed. 2. Adjust VCC above the startup threshold before setting to 12 V. 3. Tlow =0°C for MC34262 Thigh = +85°C for MC34262 = −40 °C for MC33262 = +105 °C for MC33262. |
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