LT1950EGN Linear Technology, LT1950EGN Datasheet
LT1950EGN
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LT1950EGN Summary of contents
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... An accurate shutdown pin with programmable hysteresis is available for undervoltage lockout and shut- down. The LT1950 is available in a small 16-Pin SSOP package. , LTC and LT are registered trademarks of Linear Technology Corporation 47µH MBRB20200 V ...
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... OSC V .................................................................... –10mA REF Operating Junction Temperature Range LT1950EGN/LT1950IGN (Notes 2, 5) ... – 40°C to 125°C Storage Temperature Range ..................–65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are 0.1µF, SHDN = V , BLANK = 0V, I ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are 0.1µF, SHDN = V , BLANK = 0V SENSE specified. PARAMETER Error Amplifier FB Reference Voltage FB Input Bias Current Open Loop Voltage Gain Unity Gain Bandwidth COMP ...
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... Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LT1950EGN is guaranteed to meet performance specifications from 0°C to 125°C operating junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LT1950IGN is guaranteed over the full – ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS BLANK Override Threshold – I Maximum Threshold vs SENSE Temperature 100 125 –50 – TEMPERATURE (°C) 1950 G07 SHDN Input Current *(–1) ...
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LT1950 W U TYPICAL PERFOR A CE CHARACTERISTICS BOOST Switch Off Time vs Temperature 700 600 500 400 300 –50 – 100 125 TEMPERATURE (°C) 1950 G16 CTIO S COMP (Pin ...
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CTIO S BLANK (Pin 9): The BLANK pin is used to adjust the leading edge blanking period of the current sense amplifier during FET turn-on. Shorting the BLANK pin to ground provides a default blanking ...
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LT1950 W BLOCK DIAGRA 1.23V + – 1.32V 3µA 7 SHDN SYNC OSC SLOPE 5 ERROR AMPLIFIER 1.23V VOLTAGE GAIN = 85dB + – OPERATIO The LT1950 is a constant frequency, ...
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U OPERATIO increases the range of MOSFETs that can be selected and allows applications requiring high gate drive with a large swing in V voltage. When V exceeds 8V, the GATE IN IN2 output driver is enabled. The GATE switches ...
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LT1950 U U APPLICATIO S I FOR ATIO LT1950 Input Supplies, V Output and GATE Enable REF V is the main input supply for the LT1950 input supply for the LT1950 output driver. V provided by shorting the ...
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U U APPLICATIO S I FOR ATIO Shutdown and Undervoltage Lockout Figure 4 shows how to program undervoltage lockout (UVLO) for the V supply. Typically, UVLO is used in IN situations where the input supply is current limited, or has ...
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LT1950 U U APPLICATIO S I FOR ATIO N-channel power MOSFET even though V low. High GATE drive voltage reduces MOSFET R improves efficiency and increases the range of MOSFETs that can be selected. A small switching regulator at the ...
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U U APPLICATIO S I FOR ATIO Synchronizing The SYNC pin is used to synchronize the LT1950 main oscillator to an external clock. The SYNC pin can be driven directly from a logic level output, requiring less than 0.8V for ...
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LT1950 U U APPLICATIO S I FOR ATIO Programming Leading Edge Blank Time For PWM controllers driving external MOSFETs, noise can be generated during GATE rise time due to various para- sitic effects. This noise can disturb the input to ...
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U U APPLICATIO S I FOR ATIO ability of the V pin to follow input voltage and control SEC maximum switch duty cycle. Forward Converter Applications The LT1950 provides sophisticated control of the simplest forward converter topology (single primary switch, ...
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LT1950 U U APPLICATIO S I FOR ATIO 10V +V IN COMP 470k LT1950 4.7k 18k 1 16 COMP V SEC R17, 210k BOOST OSC 4 13 SYNC ...
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U U APPLICATIO S I FOR ATIO High Efficiency, Isolated 26V 5A Output, Nonsynchronous Forward Converter Figure 13 illustrates a nonsynchronous forward converter based on the LT1950 to provide a highly efficient, 26V 5A isolated output from 48V input. The ...
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LT1950 U U APPLICATIO S I FOR ATIO +V OUT C1 2200pF R1 10.5k R4 133k R2 1.21k R6 35.7k Figure 14 36V Input, 12V/1.5A Automotive SEPIC Converter 3.3V BIAS C3 R3 LT1950 4.7µF 18k ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... LTC1871 Wide Input Range LT1910 Protected High Side MOSFET Driver LTC3440 Micropower Buck-Boost DC/DC Converter LTC3704 Positive-to-Negative DC/DC Controller trademark of Linear Technology Corporation. SENSE Linear Technology Corporation 20 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● COMMENTS Reduces Conducted and Radiated EMI, Low Switching Harmonics, 20kHz to 250kHz Switching Frequency 1.9V ≤ ...