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UC1846J883B Folha de dados(PDF) 5 Page - Texas Instruments |
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UC1846J883B Folha de dados(HTML) 5 Page - Texas Instruments |
5 / 24 page UC1846, UC1847, UC2846 UC2847, UC3846, UC3847 www.ti.com SLUS352C – JANUARY 1997 – REVISED DECEMBER 2015 6.5 Electrical Characteristics 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=15 V, RT=10k, CT=4.7 nF, TA=TJ (unless otherwise noted) UC1846/7 UC3846/7 UC2846/7 PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX REFERENCE Output Voltage TJ = 25°C, IO = 1 mA 5.05 5.10 5.15 5.00 5.10 5.20 V Line Regulation VIN = 8 V to 40 V 5 20 5 20 mV Load Regulation IL = 1 mA to 10 mA 3 15 3 15 mV Over Operating Temperature Stability 0.4 0.4 mV/°C Range, (1) Line, Load, and Total Output Variation 5.00 5.20 4.95 5.25 V Temperature (1) 10 Hz ≤ f ≤10 kHz, TJ Output Noise Voltage 100 100 µV = 25°C(1) TJ = 125°C, 1000 Long Term Stability 5 5 mV Hrs(1) Short Circuit Output Current VREF = 0 V –10 –45 –10 –45 mA OSCILLATOR Initial Accuracy TJ = 25°C 39 43 47 39 43 47 kHz Voltage Stability VIN =8 V to 40 V –1% 2% –1% 2% Over Operating Temperature Stability –1% –1% Range (1) Sync Output High Level 3.9 4.35 3.9 4.35 V Sync Output Low Level 2.3 2.5 2.3 2.5 V Sync Input High Level Pin 8 = 0 V 3.9 3.9 V Sync Input Low Level Pin 8 = 0 V 2.5 2.5 V Sync Voltage = 3.9 V, Sync Input Current 1.3 1.5 1.3 1.5 mA Pin 8 = 0 V ERROR AMPLIFIER Input Offset Voltage 0.5 5 0.5 10 mV Input Bias Current –0.6 –1 –0.6 –2 µA Input Offset Current 40 250 40 250 nA Common Mode Range VIN = 8 V to 40 V 0 VIN - 2 V 0 VIN - 2 V V ΔVO = 1.2 to 3 V, VCM Open Loop Voltage Gain 80 105 80 105 dB = 2 V Unity Gain Bandwidth TJ = 25°C (1) 0.7 1.0 0.7 1.0 MHz VCM = 0 V to 38 V, CMRR 75 100 75 100 dB VIN = 40 V PSRR VIN = 8 V to 40 V 80 105 80 105 dB VID = –15 mV to -5 V, Output Sink Current 2 6 2 6 mA VPIN7 = 1.2 V VID = 15 mV to -5 V, Output Source Current –0.4 –0.5 –0.4 –0.5 mA VPIN7 = 2.5 V High Level Output Voltage RL = (Pin 7) 15 kΩ 4.3 4.6 4.3 4.6 V Low Level Output Voltage RL = (Pin 7) 15 kΩ 0.7 1 0.7 1 V CURRENT SENSE AMPLIFIER VPIN 3 = 0 V, Pin 1 Amplifier Gain 2.5 2.75 3.0 2.5 2.75 3.0 V Open(2), (3) (1) These parameters, although ensured over the recommended operating conditions, are not 100% tested in production. (2) Parameter measured at trip point of latch with VPIN 5 = VREF, VPIN 6 = 0 V. (3) Amplifier gain defined as: G = ΔVPIN7 / ΔVPIN4; VPIN4 = 0 to 1.0 V Copyright © 1997–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: UC1846 UC1847 UC2846 UC2847 UC3846 UC3847 |
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