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TPS59650 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS59650 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 50 page TPS51650, TPS59650 www.ti.com SLUSAV7 – JANUARY 2012 ELECTRICAL CHARACTERISTICS (continued) over recommended free-air temperature range, VV5 = VV5DRV = 5.0 V; VV3R3 = 3.3 V; VxGFB = VPGND = VGND, VxVFB = VCORE (Unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CURRENT SENSE: OVERCURRENT, ZERO CROSSING, VOLTAGE POSITIONING AND PHASE BALANCING TPS51650 4.6 7.0 9.2 RxOCP-R = 20 kΩ TPS59650 3.9 7.0 9.2 TPS51650 7.6 10.0 12.1 RxOCP-R = 24 kΩ TPS59650 6.7 10.0 12.1 TPS51650 11.6 14.0 16.2 RxOCP-R = 30 kΩ TPS59650 11.0 14.0 16.2 TPS51650 16.5 19.0 21.2 RxOCP-R = 39 kΩ TPS59650 15.6 19.0 21.2 OCP voltage (valley current VOCPP mV limit) TPS51650 22.3 25.0 27.2 RxOCP-R = 56 kΩ TPS59650 21.2 25.0 27.2 TPS51650 29.2 32.0 34.5 RxOCP-R = 75 kΩ TPS59650 28.3 32.0 34.5 TPS51650 37.1 40.0 42.5 RxOCP-R = 100 kΩ TPS59650 35.6 40.0 42.5 TPS51650 46.1 49.0 51.9 RxOCP-R = 150 kΩ TPS59650 45.6 49.0 51.9 VIMAX_MIN = 133 mV, value of xIMAX, 20 A VIMAX = VREF × IMAX / 255 VIMAX IMAX values both channels VIMAX_MAX = 653mV, value of xIMAX 98 A ICS CS pin input bias current CSPx and CSNx –1.0 0.2 1.0 µA xVFB input bias current, IxVFBDQ End of soft-stop, xVFB = 100 mV 90 125 180 µA discharge TPS51650 486 497 518 Droop amplifier GM-DROOP xVFB = 1 V µS transconductance TPS59650 480 497 518 (VCSP1 – VCSN1) = (VCSP2 – VCSN2) = IBAL_TOL Internal current share tolerance –3% +3% (VCSP3 – VCSN3) = VOCPP_MIN ACSINT Internal current sense gain Gain from CSPx – CSNx to PWM comparator 11.65 12.00 12.30 V/V Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 5 |
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