Datenblatt-Suchmaschine für elektronische Bauteile |
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UC2836D Datenblatt(PDF) 3 Page - Texas Instruments |
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UC2836D Datenblatt(HTML) 3 Page - Texas Instruments |
3 / 10 page UC1835 UC1836 UC2835 UC2836 UC3835 UC3836 PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNITS Regulating Voltage and Error Amplifier (UC1836 Family Only) Regulating Level at VOUT Sense (VREG) Driver Current = 10mA, TJ = 25°C 2.47 2.5 2.53 V Over Temperature 2.45 2.55 V Line Regulation +VIN = 5.2V to 35V 6.0 20 mV Load Regulation Driver Current = 0 to 250mA 3.0 15 mV Bias Current at VOUT Sense VOUT Sense =2.5V -1.0 -0.2 µA Error Amp Transconductance ±100µA at Compensation/Shutdown Pin 0.8 1.3 2.0 mS Maximum Compensation Output Current Sink or Source, Driver Source Open 90 200 260 µA Driver Maximum Current 250 500 mA Saturation Voltage Driver Current = 250mA, Driver Sink 2.0 2.8 V Pull-Up Current at Driver Sink Compensation/Shutdown=0.45V 140 250 300 µA Driver Sink Leakage In UVLO 10 µA In Reverse Voltage (UC1835 Family Only) 10 µA Thermal Shutdown 165 °C Foldback Current Limit Current Limit Levels at Sense Resistor Out VOUT Sense = (0.99) VREG 2.2 2.5 2.8 A VOUT Sense = (0.5) VREG 1.3 1.5 1.7 A VOUT Sense = 0V 0.25 0.4 0.55 A Current Limit Amp Tansconductance ±100µA at Compensation/Shutdown, VOUT Sense = (0.9) VREG 12 24 42 mS Limiting Voltage at Current Limit (-) (Note 2) VOUT Sense = (0.9) VREG Volts Below +VIN, TJ = 25°C 80 100 140 mV Sense Resistor Value (Note 3) VOUT Sense = (0.9) VREG, IOUT = IA, TJ = 25°C 40 m Ω Note 2: This voltage has a positive temperature coefficient of approximately 3500ppm/°C. Note 3: This resistance has a positive temperature coefficient of approximately 3500ppm/°C. The total resistance from Pin 1 to Pin 8 will include an additional 60 to 100m Ω of package resistance. ELECTRICAL CHARACTERISTICS: Unless otherwise stated, specifications hold for TA = 0°C to + 70°C for the UC3835/6, –25°C to + 85°C for the UC2835/6, and –55°C to +125°C for the UC1835/6, +VIN = 6V, Driver Source= 0V, Driver Sink = 5V, TA = TJ. UC 1835 − Typical configurations for a 2A, Low Dropout 5V Regulator UC1836 − Typical Configuration for a 2A, Low Dropout Adjustable Regulator Note 4: Suggested Pass devices are TIP 32B. (Dropout Voltage ≤0.75V) or, D45H, (Dropout Voltage ≤0.5V), or equivalents. APPLICATION AND OPERATION INFORMATION 3 |
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Ähnliche Beschreibung - UC2836D |
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