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TPSM846C23 датащи(PDF) 6 Page - Texas Instruments |
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TPSM846C23 датащи(HTML) 6 Page - Texas Instruments |
6 / 82 page 6 TPSM846C23 SLVSDF3C – MARCH 2017 – REVISED AUGUST 2017 www.ti.com Product Folder Links: TPSM846C23 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.5 Thermal Information THERMAL METRIC(1) TPSM846C23 UNIT MOL (QFN) 59 PINS RθJA Junction-to-ambient thermal resistance 8.7 °C/W ψJT Junction-to-top characterization parameter 0.9 °C/W ψJB Junction-to-board characterization parameter 4.3 °C/W (1) Output voltage is set by the VOUT_COMMAND PMBus command. (2) Specified by design. (3) While the PMBus permits setting the output voltage higher than 2.0 V, this product is not designed to be operated beyond this limit. (4) The stated limit of the set-point tolerance includes the tolernace of both the internal voltage reference and the internal adjustment resistor. The overall output voltage tolerance will be affected by the tolerance of the external RSET resistor. 6.6 Electrical Characteristics Over –40°C to 105°C free-air temperature range, VIN = 12 V, VOUT = 1.2 V, IOUT = IOUT max, ƒSW = 500 kHz, CIN1 = 4 × 22-µF, 25-V, 1210 ceramic; CIN2 = 2 × 330-µF, 25-V, electrolytic bulk; COUT1 = 4 × 47-µF, 6.3-V, 1210 ceramic; COUT2 = 2 × 470-µF, 6.3-V polymer bulk (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT VOLTAGE (VIN) VIN Input voltage Over IOUT range 4.5 15 V IVIN Input operating current Non-switching supply current 7.7 12 mA OUTPUT VOLTAGE (VOUT) VOUT Factory default setting RSET = Not loaded, VOUT_SCALE_LOOP = 1.0 600 mV RSET = 10 kΩ, 1%, VOUT_SCALE_LOOP = 0.5 1.20 V VOUT programmable range(1) (2) RSET = Not loaded, VOUT_SCALE_LOOP = 1.0 0.35 1.65 V RSET = 10 kΩ, 1%, VOUT_SCALE_LOOP = 0.5 0.7 2(3) V VOUT programmable step size RSET = Not loaded, VOUT_SCALE_LOOP = 1.0 1.953 mV RSET = 10 kΩ, 1%, VOUT_SCALE_LOOP = 0.5 3.906 mV Set-point voltage tolerance RSET = Not loaded, TJ = 25°C, IOUT = 0A –1.0% 1.0% RSET = 10 kΩ, 1%, TJ = 25°C, IOUT = 0A (4) –1.5% 1.5% Temperature variation 0°C < TJ < 85°C, IOUT = 0 A (2) –0.5% 0.5% –40°C < TJ < 125°C, IOUT = 0 A (2) –1.0% 1.0% Line regulation 4.5 V < VIN < 15 V, IOUT = 0 A ±0.05% Load regulation Over IOUT range, using remote sense ±0.2% VOUT ripple Output voltage ripple 20 MHz bandwidth 13 mV OUTPUT CURRENT IOUT Output current Natural Convection. See SOA graph for derating over temperature. 0 35 A IOCF Overcurrent fault threshold Factory default setting 42 A Programmable range 5 52 IOCWF Overcurrent warning threshold Factory default setting 37 A Programmable range 4 50 IOCF(acc) Overcurrent fault accuracy IOUT ≥ 20 A –15% 15% ISH(acc) Output current share accuracy (IOUT1 – IOUT2) ÷ ITOTAL, IOUT ≥ 20 A per module (2) –15% 15% (IOUTx – ITOTAL) ÷ 2, IOUT < 20 A per module (2) –3 3 A |
Аналогичный номер детали - TPSM846C23 |
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Аналогичное описание - TPSM846C23 |
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