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UC1835J Scheda tecnica(PDF) 2 Page - Texas Instruments |
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UC1835J Scheda tecnica(HTML) 2 Page - Texas Instruments |
2 / 10 page UC1835 UC1836 UC2835 UC2836 UC3835 UC3836 SOIC-16 (TOP VIEW) DW Package CONNECTION DIAGRAMS PACKAGE PIN FUNCTION FUNCTION PIN N/C 1 +VIN 2 +VIN 3 N/C 4 Compensation/ Shutdown 5 N/C 6 Ground 7 N/C 8 N/C 9 Driver Source 10 N/C 11 VOUT Sense 12 N/C 13 N/C 14 Driver Sink 15 N/C 16 Current Limit (-) 17 N/C 18 Sense Resistor Out 19 Sense Resistor Out 20 DIL-8, SOIC-8 (TOP VIEW) N or J Package, D Package PLCC-20, LCC-20 (TOP VIEW) Q, L Packages Input Supply Voltage (+VIN) . . . . . . . . . . . . . . . . –1.0V to + 40V Driver Output Current (Sink or Source) . . . . . . . . . . . . . 600mA Driver Source to Sink Voltage . . . . . . . . . . . . . . . . . . . . . + 40V Maximum Current Through Sense Resistor. . . . . . . . . . . . . . 4A VOUT Sense Input Voltage . . . . . . . . . . . . . . . . . . –.3V to + 40V Power Dissipation at TA = 25°C (Note 2) . . . . . . . . . . . 1000mW Power Dissipation at TC = 25°C (Note 2) . . . . . . . . . . . 2000mW Operating Junction Temperature . . . . . . . . . . . -55°C to +150°C Storage Temperature . . . . . . . . . . . . . . . . . . . . -65°C to +150°C Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . 300°C Note 1: Voltages are referenced to ground, (Pin 3). Currents are positive into, negative out of, the specified terminals. Consult Packaging Section of Databook for thermal considerations and limitations of packages. 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. PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNITS Input Supply Supply Current +VIN = 6V 2.75 4.0 mA +VIN = 40V 3.75 6.0 mA UVLO Threshold +VIN Low to High, VOUT Sense = 0V 3.9 4.4 4.9 V Threshold Hysteresis 0.1 0.35 V Reverse Current +VIN = -1.0V, Driver Sink Open 6.0 20 mA Regulating Voltage and Error Amplifier (UC1835 Family Only) Regulating Level at VOUT Sense (VREG) Driver Current = 10mA, TJ = 25°C 4.94 5.0 5.06 V Over Temperature 4.9 5.1 V Line Regulation +VIN = 5.2V + 35V 15 40 mV Load Regulation Driver Current = 0 to 250mA 6.0 25 mV Bias Current at VOUT Sense VOUT Sense = 5.0V 75 125 210 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 ABSOLUTE MAXIMUM RATINGS (Note 1) 2 |
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