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MAX14575AL Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX14575AL Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 11 page  3 Maxim Integrated 250mA to 2.5A Adjustable Current-Limit Switches MAX14575A/MAX14575AL/ MAX14575B/MAX14575C ELECTRICAL CHARACTERISTICS (continued) (VIN = +2.3V to +5.5V and TA = -40NC to +85NC, unless otherwise noted. Typical values are at VIN = +3.3V, CIN = 1FF, COUT = 1FF, RSETI = 100kI, TA = +25°C.) (Note 2) Note 2: All devices are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by design; not production tested. Note 3: Blanking time and retry time are generated by the same internal oscillator. The ratio of RETRY BLANK t t is a constant value of 32. Figure 1. Timing Diagram for Measuring Turn-On Time (tSS) and Turn-Off Time (tOFF). tSS tOFF VOUT 10% VIN 90% VIN EN(EN)* *() THE POLARITY OF THE SIGNAL IS REVERSED FOR THE MAX14575AL ONLY. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS EN, EN INPUT EN, EN Input Leakage ILEAK EN, EN = IN or GND -1 +1 F A EN, EN Input Logic-High Voltage VIH 1.6 V EN, EN Input Logic-Low Voltage VIL 0.4 V FLAG OUTPUT FLAG Output Logic-Low Voltage ISINK = 1mA 0.4 V FLAG Output Leakage Current VIN = VFLAG = 5.5V, FLAG deasserted 1 F A TIMING CHARACTERISTICS Turn-On Time tSS Time from ENABLE signal to VOUT = 90% of VIN, Figure 1 600 F s Turn-Off Time tOFF Time from DISABLE signal to VOUT = 10% of VIN, RL = 1kI, COUT = 0, Figure 1 100 F s Current-Limit Reaction Time tLIM Output high and then short circuit applied 3 F s Blanking Time tBLANK Figures 2 and 3 (Note 3) 10 15 25 ms Retry Time tRETRY MAX14575A/MAX14575AL Figure 2 (Note 3) 320 500 875 ms THERMAL PROTECTION Thermal Shutdown +160 N C Thermal Shutdown Hysteresis 20 N C |
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