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STD Fiches technique(PDF) 3 Page - Texas Instruments |
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STD Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 9 page Vin EN Vout Iout www.ti.com Operation • Connect a 0-A to 100-mA load between an OUT pin at connector J4, and a GND pin at connector J3. • Disable the output by connecting the jumper on JP1 from the EN pin to the OFF pin. 3 Operation • Turn on the input power supply. For initial operation, set the input power supply, VIN – J1, to 10 V • Enable the output by reconnecting the jumper on JP1 from the EN pin to the ON pin. • Vary the respective loads and VIN voltages as necessary for test purposes. 4 Test Results This section provides typical performance waveforms for the TPS7A1601EVM-046 printed-circuit board. 4.1 Turnon Sequence Figure 1 shows the turnon/off characteristic where VIN is preset to 10 V, the output drives full load, and the EN turnon is stepped to 10 V (C2, red). The output soft start (C1, yellow) shows a monotonic rise time of approximately 60 ms. The output voltage start-up ramp is not load dependant. Figure 1. Turnon Sequence 4.2 Output Load Transient Figure 2 shows the load transient response (OUT – C1, yellow) for a full-load step transient from 10 mA to 100 mA (C4, green). VIN is set at 10 V. 3 SLVU549 – December 2011 TPS7A1601EVM-046 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated |
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