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UC3625QG4 Scheda tecnica(PDF) 4 Page - Texas Instruments |
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UC3625QG4 Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 25 page UC1625 UC2625 UC3625 SLUS353C – NOVEMBER 2003 – REVISED JUNE 2013 www.ti.com ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for: TA = 25°C; Pwr VCC = VCC = 12 V; ROSC = 20 kΩ to VREF; COSC = 2 nF; RTACH = 33 kΩ; CTACH = 10 nF; and all outputs unloaded. TA = TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Overall Supply current 14.5 30.0 mA VCC turn-on threshold Over operating range 8.65 8.95 9.45 V VCC turn-off threshold 7.75 8.05 8.55 Overvoltage/Coast OV-COAST inhibit threshold 1.65 1.75 1.85 OV-COAST restart threshold 1.55 1.65 1.75 V Over operating range OV-COAST hysteresis 0.05 0.10 0.15 OV-COAST input current -10 -1 0 μA Logic Inputs H1, H2, H3 low threshold 0.8 1.0 1.2 Over operating range V H1, H2, H3 high threshold 1.6 1.9 2.0 H1, H2, H3 input current Over operating range, to 0 V -400 -250 -120 μA QUAD SEL, dir thresholds Over operating range 0.8 1.4 2.0 V QUAD SEL hysteresis 70 mV DIR hysteresis 0.6 V QUAD SEL input current -30 50 150 μA DIR input current -30 -1 30 PWM Amp/Comparator E/A IN(+), E/A IN(–) input current To 2.5 V -5.0 -0.1 5.0 μA PWM IN input current To 2.5 V 0 3 30 Error amp input offset 0 V < VCOMMON-MODE < 3 V -10 10 mV Error amp voltage gain 70 90 dB E/A OUT range 0.25 3.50 V Pull-up current To 0 V -16 -10 -5 μA SSTART Discharge current To 2.5 V 0.1 0.4 3.0 mA Restart threshold 0.1 0.2 0.3 V Current Amp ISENSE1 = 0.3 V, ISENSE2 = 0.5 V to Gain 1.75 1.95 2.15 V/V 0.7 V Level shift ISENSE1 = 0.3 V, ISENSE2 = 0.3 V 2.4 2.5 2.65 Peak current threshold 0.14 0.20 0.26 V ISENSE1 = 0 V, force ISENSE2 Over current threshold 0.26 0.30 0.36 ISENSE1, ISENSE2 input current -850 -320 0 To 0 V μA ISENSE1, ISENSE2 offset current ±2 ±12 Range ISENSE1, ISENSE2 -1 2 V Tachometer/Brake TACH-OUT high level 4.7 5 5.3 Over operating range, 10 k Ω to 2.5 V V TACH-OUT low level 0.2 On time 170 220 280 μs On time change with temp Over operating range 0.1% RC-BRAKE input current To 0 V -4.0 -1.9 mA Threshold to brake, RC-brake Over operating range 0.8 1.0 1.2 V Brake hysteresis, RC-brake 0.09 SPEED-IN threshold Over operating range 220 257 290 mV SPEED-IN input current -30 -5 30 μA 4 Submit Documentation Feedback Copyright © 2003–2013, Texas Instruments Incorporated Product Folder Links: UC1625 UC2625 UC3625 |
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