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TPS40131 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS40131 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 46 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS40131 SLVS635 – FEBRUARY 2007 T A = -40°C to 85°C, VIN = 5.0 V, VDD = 12.0 V, RRT = 64.9 kΩ, TJ = TA (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN5 INPUT SUPPLY VIN Operating voltage range, VIN5 4.5 5.0 5.8 V IIN Shutdown current, VIN5 EN/SYNC = GND 5 µA Operating current Outputs switching, No load 1.0 2.0 mA BP5 INPUT SUPPLY Operating voltage range 4.3 5.0 5.5 V IBP5 Operating current Outputs switching, no external FETs 3 5 mA Turn-on BP5 rising 3.90 4.25 4.45 V Turn-off hysteresis(1) 150 mV VDD INPUT SUPPLY 4.5 28 V BP8VBP8 Output Voltage Internal load < 1 mA, No external load 7.5 V OSCILLATOR/SYNCHRONIZATION RT = 64.9 kΩ 355 400 455 Phase frequency accuracy RT = 64.9 kΩ, 0°C ≤ TJ≤ 85°C 360 400 440 kHz Phase frequency set range(1) 100 1200 Synchronization frequency 800 9600 range(1) Synchronization input VBP5/2 V threshold(1) EN/SYNC Enable threshold Pulse width > 50 ns 0.8 1.0 1.5 V Voltage capability(1) VBP5 PWM Maximum duty cycle per 87.5% channel(1) Minimum duty cycle per 0 channel(1) VREF Voltage reference ILOAD = 100 uA 0.687 0.700 0.709 V ERROR AMPLIFIER Voltage feedback, trimmed VFB 0.691 0.700 0.705 (including differential amplifier) Voltage feedback, without V VFB 0.687 0.700 0.710 differential amplifier CMRR Input common mode range(1) 0.0 0.7 2.0 Input bias current VFB = 0.7 V 55 200 nA Input offset voltage 0 V ISRC Output source current VCOMP = 1.1 V, VFB = 0.6 V 1 2 mA ISINK Output sink current VCOMP = 1.1 V, VFB =VBP5 1 2 VOH High-level output voltage ICOMP = -1 mA 2.5 2.9 V VOL low-level output voltage ICOMP = 1 mA 0.5 0.8 GBW Gain bandwidth(1) 3 5 MHz AVOL Open loop gain(1) 60 90 dB (1) Ensured by design. Not production tested. 4 Submit Documentation Feedback |
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