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UC1846DW Datasheet(PDF) 2 Page - Texas Instruments |
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UC1846DW Datasheet(HTML) 2 Page - Texas Instruments |
2 / 10 page 2 UC1846/7 UC2846/7 UC3846/7 PACKAGE PIN FUNCTION FUNCTION PIN N/C 1 C/L SS 2 VREF 3 C/S- 4 C/S+ 5 N/C 6 E/A+ 7 E/A- 8 Comp 9 CT 10 N/C 11 RT 12 Sync 13 A Out 14 Gnd 15 N/C 16 VC 17 B Out 18 VIN 19 Shutdown 20 DIL-16, SOIC-16 (TOP VIEW) J or N Package, DW Package CONNECTION DIAGRAMS ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply for TA=-55°C to +125°C for UC1846/7; -40°C to +85°C for the UC2846/7; and 0°C to +70°C for the UC3846/7; VIN=15V, RT=10k, CT=4.7nF, TA=TJ.) UC1846/UC1847 UC3846/UC3847 PARAMETER TEST CONDITIONS UC2846/UC2847 MIN. TYP. MAX. MIN. TYP. MAX. UNITS Reference Section Output Voltage TJ=25°C, IO=1mA 5.05 5.10 5.15 5.00 5.10 5.20 V Line Regulation VIN=8V to 40V 5 20 5 20 mV Load Regulation IL=1mA to 10mA 3 15 3 15 mV Temperature Stability Over Operating Range, (Note 2) 0.4 0.4 mV/°C Total Output Variation Line, Load, and Temperature (Note 2) 5.00 5.20 4.95 5.25 V Output Noise Voltage 10Hz ≤ f ≤10kHz, TJ=25°C (Note 2) 100 100 µV Long Term Stability TJ=125°C, 1000 Hrs. (Note 2) 5 5 mV Short Circuit Output Current VREF=0V -10 -45 -10 -45 mA Supply Voltage (Pin 15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V Collector Supply Voltage (Pin 13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V Output Current, Source or Sink (Pins 11, 14) . . . . . . . . . . . . . . . . . . . . . . . 500mA Analog Inputs (Pins 3, 4, 5, 6, 16). . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +VIN Reference Output Current (Pin 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30mA Sync Output Current (Pin 10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5mA Error Amplifier Output Current (Pin 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5mA Soft Start Sink Current (Pin 1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Oscillator Charging Current (Pin 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Power Dissipation at TA=25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000mW Power Dissipation at TC=25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000mW Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C Lead Temperature (soldering, 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . +300°C ABSOLUTE MAXIMUM RATINGS (Note 1) Note 1. All voltages are with respect to Ground, Pin 13. Currents are positive into, negative out of the speficied terminal. Consult Packaging Section of Databook for thermal limitations and considerations of packages. Pin numbers refer to DIL and SOIC packages only. PLCC-20, LCC-20 (TOP VIEW) Q, L Packages |
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