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TPS51285ARUKR датащи(PDF) 6 Page - Texas Instruments |
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TPS51285ARUKR датащи(HTML) 6 Page - Texas Instruments |
6 / 32 page TPS51285A TPS51285B SLVSBX0 – APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS over operating free-air temperature range, VVIN = 12 V, VVO1 = 5 V, VVFB1 = VVFB2 = 2 V, VEN1 = VEN2 = 3.3 V, VCLK: 200 Ω to GND (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT SUPPLY CURRENT TA = 25°C, No load, VVO1 = 0 V, IVIN1 VIN supply current-1 84 μA VVFB1 = VVFB2 = 2.06V IVIN2 VIN supply current-2 TA = 25°C, No load, VVFB1 = VVFB2 = 2.06 V 10 μA IVO1 VO1 supply current TA = 25°C, No load, VVFB1 = VVFB2 = 2.06 V 70 μA TPS51285A 25 TA = 25°C, No load, VVO1 = 0 V, IVIN(STBY) VIN stand-by current μA VEN1= VEN2= 0 V TPS51285B 28 INTERNAL REFERENCE TA = 25°C 1.99 2 2.01 V VFBx VFB regulation voltage 1.98 2 2.02 V IFBx VFB Leakage Current TA = 25°C 0.1 µA VREG5 OUTPUT TA = 25°C, No load, VVO1 = 0 V 4.9 5 5.1 VVIN > 7 V , VVO1= 0 V, IVREG5 < 100 mA 4.85 5 5.1 VVREG5 VREG5 output voltage V VVIN > 5.5 V , VVO1= 0 V, IVREG5 < 35 mA 4.85 5 5.1 VVIN > 5 V, VVO1= 0 V, IVREG5 < 20 mA 4.55 4.75 5.1 IVREG5 VREG5 current limit VVO1 = 0 V, VVREG5= 4.5 V, VVIN = 7 V 100 140 mA RV5SW 5-V switch resistance TA = 25°C, VVO1= 5 V, IVREG5= 50 mA 1.8 Ω VREG3 OUTPUT VVIN > 7 V , VVO1= 0 V, IVREG3 < 100 mA 3.217 3.3 3.383 VVIN > 5.5 V , VVO1= 0 V, IVREG3 < 35 mA 3.234 3.3 3.366 0°C ≤ TA ≤ 85°C, VVIN > 5.5 V, VVO1= 0 V, VVREG3 VREG3 output voltage 3.267 3.3 3.333 V IVREG3 < 35 mA 0°C ≤ TA ≤ 85°C, VVIN > 5.5 V, IVREG3< 35 mA 3.267 3.3 3.333 VVIN > 5 V , VVO1= 0 V, IVREG3 < 35 mA 3.217 3.3 3.366 IVREG3-1 VREG3 current limit-1 VVO1 = 0 V, VVREG3= 3.15 V, VVIN= 7 V 100 200 mA IVREG3-2 VREG3 current limit-2 VVREG3 = 3.15 V, VVIN= 7 V 100 200 DUTY CYCLE and FREQUENCY CONTROL fsw1 CH1 frequency(1) TA = 25°C, VVIN= 20 V 400 kHz fSW2 CH2 frequency(1) TA = 25°C, VVIN= 20 V 475 kHz tOFF(MIN) Minimum off-time TA = 25°C 200 300 400 ns MOSFET DRIVERS Source, IDRVH = –50 mA, (VVBST – VSW) = 5 V 3 RDRVH DRVH resistance Ω Sink, IDRVH = 50 mA, (VVBST – VSW) = 5 V 1.9 Source, IDRVL = –50 mA, VVREG5 = 5 V 3 RDRVL DRVL resistance Ω Sink, IDRVL = 50 mA, VVREG5= 5 V 0.9 DRVH-off to DRVL-on 12 tD Dead time ns DRVL-off to DRVH-on 20 INTERNAL BOOT STRAP SWITCH RVBST (ON) Boost switch on-resistance TA = 25°C, IVBST = 10 mA 13 Ω IVBSTLK VBST leakage current TA = 25°C 1 µA CLOCK OUTPUT VCLK on-resistance (pull-up) TA = 25°C, VCLK: Open 10 RVCLK Ω VCLK on-resistance (pull-down) TA = 25°C, VCLK: Open 10 fCLK Clock frequency TA = 25°C, VCLK: Open 256 kHz (1) Specified by design. Not production tested. 6 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: TPS51285A TPS51285B |
Аналогичный номер детали - TPS51285ARUKR |
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Аналогичное описание - TPS51285ARUKR |
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