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TPS2420RSAR Fiches technique(PDF) 8 Page - Texas Instruments |
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TPS2420RSAR Fiches technique(HTML) 8 Page - Texas Instruments |
8 / 29 page ( ) ( ) AD _ IN max IMON LOAD max 63k V R I W ´ = OUT IN OUT V V 0.04 I = - ´ TPS2420 SLUS903E – JANUARY 2009 – REVISED MAY 2013 www.ti.com VIN: Input voltage to the TPS2420. The recommended operating voltage range is 3 V to 18 V. All VIN pins should be connected together and to the power source. VOUT: Output connection for the TPS2420. When switched on the output voltage will be approximately: (5) All VOUT pins should be connected together and to the load. LTCH: When pulled low the 2420 will attempt to restart after a fault. If left floating or pulled high the TPS2420 will latch off after a fault. This pin is internally clamped at 3 V and is pulled to the internal 3-V supply by diode in series with a 100-k Ω resistor. PG: Active low, Open Drain output, Power Good indicates that there is no fault condition and the output voltage is within 0.5 V of the input voltage. PG becomes operational before UV, whenever VIN is greater than 1 V. IMON: This is a scaled analog output of IVIN. Select RIMON based on the maximum allowed A/D input voltage (VAD_FS) and the desired full-scale current in VIN (IVIN_FS) per the following equation (6) This pin is clamped at 2.5 V to protect A/D converters. It is reccomended that IMON be ignored until after PG asserts because the IMON output is accurate only after VOUT > 3 V. 8 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated Product Folder Links: TPS2420 |
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Description similaire - TPS2420RSAR |
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