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TPS53315RGFR Datasheet(PDF) 5 Page - Texas Instruments |
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TPS53315RGFR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 30 page TPS53315 www.ti.com SLUSAE6 – DECEMBER 2010 ELECTRICAL CHARACTERISTICS Over recommended free-air temperature range, VDD = 12 V (Unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LOGIC THRESHOLD AND SETTING CONDITIONS Enable 1.8 V VEN EN voltage threshold Disable 0.6 IEN EN input current VEN = 5 V 1.0 µA RRF = 0 Ω to GND, TA = 25°C (1) 200 250 300 RRF = 187 kΩ to GND, TA = 25°C (1) 250 300 350 RRF = 619 kΩ to GND, TA = 25°C (1) 350 400 450 RRF = Open, TA = 25°C (1) 450 500 550 fSW Switching frequency kHz RRF = 866 kΩ to VREG, TA = 25°C (1) 580 650 720 RRF = 309 kΩ to VREG, TA = 25°C (1) 670 750 820 RRF = 124 kΩ to VREG, TA = 25°C (1) 770 850 930 RRF = 0 Ω to VREG, TA = 25°C (1) 880 970 1070 PROTECTION: CURRENT SENSE ITRIP TRIP source current VTRIP = 1 V, TA = 25°C 9.4 10.0 10.6 µA TCITRIP TRIP current temperature coefficent On the basis of 25°C(2) 4700 ppm/°C VTRIP Current limit threshold setting range VTRIP-GND voltage 0.2 1.2 V VTRIP = 1.2 V 140 150 160 VOCL Current limit threshold VTRIP = 0.2 19 26 33 mV VTRIP = 1.2 V –160 –150 –140 VOCLN Negative current limit threshold VTRIP = 0.2 V –33 –26 –19 Positive 3 15 VAZCADJ Auto zero cross adjustable range mV Negative –15 –3 PROTECTION: UVP and OVP VOVP OVP trip threshold OVP detect 115% 120% 125% tOVPDEL OVP propagation delay time VFB delay with 50-mV overdrive 1 µs VUVP Output UVP trip threshold time UVP detect 65% 70% 75% tUVPDEL Output UVP propagation delay time 0.8 1 1.2 ms tUVPEN Output UVP enable delay time from EN to UVP workable, RMODE = 39 kΩ 2.0 2.6 3.2 ms UVLO Wake up 4.00 4.20 4.32 VUVVREG VREG UVLO threshold V Hysteresis 0.25 THERMAL SHUTDOWN Shutdown temperature(2) 145 TSDN Thermal shutdown threshold °C Hysteresis(2) 10 (1) Not production tested. Test condition is VIN = 12 V, VOUT= 1.1 V, IOUT= 5 A using application circuit shown in Figure 33. (2) Ensured by design. Not production tested. Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPS53315 |
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