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UCC2884 Datasheet(PDF) 5 Page - Texas Instruments |
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UCC2884 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 12 page  UCC2884 UCC3884 www.ti.com............................................................................................................................................. SLUS160C – AUGUST 1999 – REVISED NOVEMBER 2008 ELECTRICAL CHARACTERISTICS (continued) Unless otherwise specified, these specifications apply for TA = -40°C to 85°C for the UCC2884, and 0°C to 70°C for the UCC3884, CT = 220 pF, RON = 53 kΩ, ROFF = 38 kΩ, VOUT = VREF, VVS = 0 V, CSS = 2.5 nF, VDD = 11 V, Output no load, TA = TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Volt Second Clamp VVS = 1.4 V, TA = 40°C to 85°C 50% 60% 70% VVS = 1.4 V, TA = 0°C to 70°C 52% 57% 67% Duty cycle VVS = 3.6 V, TA = –40°C to 85°C 20.5% 22.0% 25.5% VVS = 3.6 V, TA = 0°C to 70°C 20.5% 22.0% 23.5% IB VVS = 3.7 V –1 1 µA Output Stage Output low saturation IOUT = 100 mA 0.5 0.9 IOUT = –50 mA 0.5 0.9 Output low saturation V IOUT = 200 mA (2) 1.9 UVLO output low saturation IOUT = 20 mA, VDD = 0 V 0.7 1.2 Rise time CL = 1 nF 50 70 ns Fall time CL = 1 nF 30 50 Undervoltage Lockout Turn-on threshold voltage 8.4 8.9 9.4 V Hysteresis 200 600 1000 mV Startup Regulator Regulated VDD voltage 9.5 10 10.5 V VDD override threshold 10.7 Overall VDD range 14.5 V IDD (run) f = 400 kHz 2 5 10 mA IDD startup current VDD = 5.4 V 100 250 µA VDD clamp IDD = 10 mA 12 13.5 15 V (2) Specified by design. Not 100% tested in production. Copyright © 1999–2008, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): UCC2884 UCC3884 |
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