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LM3407 Datasheet(PDF) 4 Page - Texas Instruments |
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LM3407 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 22 page LM3407 SNVS553B – JANUARY 2008 – REVISED MAY 2013 www.ti.com ELECTRICAL CHARACTERISTICS VIN = 12V unless otherwise indicated. Typical and limits appearing in plain type apply for TA = TJ = 25°C (Note 4). Limits appearing in boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are specified by design, test, or statistical analysis. Parameter Test Conditions Min Typ Max Units SYSTEM PARAMETERS IIN Operating Input Current 4.5V ≤ VIN ≤ 30V 0.58 0.78 0.98 mA VEN = 5V, VPWM = 5V, LX = open IQ Quiescent Input current 4.5V ≤ VIN ≤ 30V 0.20 0.27 0.39 mA VEN = 5V, VPWM = 0V ISHUT Shutdown Input Current VEN = 0V 36 48 60 µA VUVLO Input Under Voltage Lock-out Threshold VIN Rising 3.6 4.5 V VUVLO-HYS UVLO Hysteresis VIN Falling 200 mV VEN_H EN pin HIGH Threshold VEN Rising 1.9 2.4 V VEN_L EN pin LOW Threshold VEN Falling 1.3 1.75 V VDIM_H DIM pin HIGH Threshold VDIM Rising 1.9 2.4 V VDIM_L DIM pin LOW Threshold VDIM Falling 1.3 1.75 V fSW Switching Frequency RT = 80 kΩ 500 kHz RT = 40 kΩ 1000 tON-MIN Minimum On-time 200 ns TSD Thermal Shutdown Threshold 165 °C TSD-HYS Thermal Shutdown Hysteresis 25 °C INTERNAL VOLTAGE REGULATOR VCC VCC Regulator Output Voltage (1) VIN = 12V 4.5 V N-MOSFET DRIVER RDS(ON) Main Switch ON Resistance Isink = 80mA 0.77 1.45 Ω CONTROL LOOP AEA Error Amp Open Loop Gain 60 dB (1) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading to the pin. 4 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LM3407 |
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