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TPS40101RGET Datasheet(PDF) 4 Page - Texas Instruments |
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TPS40101RGET Datasheet(HTML) 4 Page - Texas Instruments |
4 / 35 page www.ti.com TPS40101 SLUS726 – SEPTEMBER 2006 ELECTRICAL CHARACTERISTICS (continued) -40 °C ≤ T A = TJ≤ 85°C, VVDD = 12 V, RRT = 182 kΩ, RGM = 232 kΩ, RILIM = 121 kΩ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOLTAGE MARGINING Feedback voltage margin 5% up VMGU ≤ 500 mV 715 725 735 VFBMGU mV Feedback voltage margin 3% up 2 V ≤ V MGU ≤ 3 V 700 711 720 IMGUP Margin-up bias current 60 80 100 µA Feedback voltage margin 5% down VMGD ≤ 500 mV 645 655 665 VFBMGD mA Feedback voltage margin 3% down 2 V ≤ V MGD ≤ 3 V 660 669 680 IMGDN Margin-down bias current 60 80 100 µA tMGDLY Margining delay time(3) 12 30 ms tMGTRAN Margining transition time 1.5 7.0 CURRENT SENSE AMPLIFIER gmCSA Current sense amplifier gain TJ =25°C 300 333 365 µS TCGM Amplifier gain temperature coefficient -2000 ppm/ °C VGMLIN Gm linear range voltage TJ =25°C -50 50 mV IISNS Bias current at ISNS pin VVO = VISNS = 3.3 V 250 nA 0 6 VGMCM Input voltage common mode V 4.5 V ≤ V IN ≤ 5.5 V 0 3.6 CURRENT LIMIT VILIM ILIM pin voltage to trip overcurrent 1.44 1.48 1.52 V tILIMDLY Current limit comparator propagation delay HDRV transition from on to off 70 140 ns DRIVER SPECIFICATIONS tRHDRV HIgh-side driver rise time(4) CLOAD = 4.7 nF 57 ns tFHDRV HIgh-side driver fall time(4) CLOAD = 4.7 nF 47 IHDRVSRPKS HIgh-side driver peak source current(4) 800 mA IHDRVSRMIL HIgh-side driver source current at 2.5 V(4) VHDRV - VSW = 2.5 V 700 IHSDVSNPK HIgh-side driver peak sink current(4) 1.3 A IHDRVSNMIL High-side driver sink current at 2.5 V(4) VHDRV - VSW = 2.5 V 1.2 RHDRVUP HIgh-side driver pullup resistance IHDRV = 300 mA 2.4 4.0 Ω RHDRVDN HIgh-side driver pulldown resistance IHDRV = 300 mA 1.0 1.8 tRLDRV Low-side driver rise time(4) CLOAD = 4.7 nF 57 ns tFLDRV Low-side driver fall time(4) CLOAD = 4.7 nF 47 ILDRVSRPK Low-side driver peak source current(4) 800 mA ILDRVSNMIL Low-side driver source current at 2.5 V(4) VLDRV = 2.5 V 700 ILSDVSNPK Low-side driver peak sink current(4) 1.3 A Low-side driver sink current at 2.5 V(4) VLDRV = 2.5 V 1.2 RLDRVUP Low-side driver pullup resistance ILDRV = 300 mA 2.0 4.0 Ω RLDRVDN Low-side driver pulldown resistance ILDRV = 300 mA 0.8 1.5 ISWLEAK Leakage current from SW pin -1 1 µA POWERGOOD VLPGD Powergood low voltage IPGD= 2 mA 30 100 mV tPGD Powergood delay time 15 25 35 µs VVDD = OPEN, 10-kΩ pullup to external VLPGDNP Powergood low voltage , no device power 1.00 1.25 V 5-V supply VOV Power good overvoltage threshold, VFB 765 mV VUV Power good undervoltage threshold, VFB 615 (3) Margining delay time is the time delay from an assertion of a margining command until the output voltage begins to transition to the margined voltage. (4) Ensured by design. Not production tested. 4 Submit Documentation Feedback |
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