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LM3492HCMH Scheda tecnica(PDF) 7 Page - Texas Instruments |
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LM3492HCMH Scheda tecnica(HTML) 7 Page - Texas Instruments |
7 / 29 page LM3492HC-Q1, LM3492HC www.ti.com SNVS797B – MARCH 2012 – REVISED OCTOBER 2015 Electrical Characteristics (continued) over operating free-air temperature range, VIN = 12 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT COMM PIN COMM goes LOW during VIOUT VIOUT-OV IOUT pin overvoltage threshold 5.6 6.7 7.8 V rising, other VIOUT = 1.2 V VCOMM-LOW COMM pin at LOW 5 mA into COMM 0.7 V ILEAK-FAULT COMM pin open leakage VCOMM = 5 V 5 µA THERMAL PROTECTION TOTM Overtemperature indication TJ rising 135 °C Over-temperature indication TOTM-HYS TJ falling 15 °C hysteresis TSD Thermal shutdown temperature TJ rising 165 °C Thermal shutdown temperature TSD-HYS TJ falling 20 °C hysteresis 7.6 Typical Characteristics Unless otherwise specified the following conditions apply: TJ = 25°C, VIN = 12 V with configuration in typical application circuit for ILED = 250 mA shown in this data sheet. Figure 1. Quiescent Current vs Input Voltage Figure 2. VCC Voltage vs VCC Ouput Current Figure 3. VCC Voltage vs Input Voltage Figure 4. Switching Frequency vs Input Voltage Copyright © 2012–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM3492HC-Q1 LM3492HC |
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