UCC3882PWTR-1G4 ,Average Current Mode Synchronous Buck Controller with 5-Bit DAC 28-TSSOP 0 to 70This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated cir ..
UCC3882PWTR-1G4 ,Average Current Mode Synchronous Buck Controller with 5-Bit DAC 28-TSSOP 0 to 70 SLUS294C –MARCH 1999–REVISED FEBRUARY 2010AVERAGE CURRENT MODE SYNCHRONOUSCONTROLLER WITH 5-BIT DA ..
UCC3884D ,Frequency Foldback Current Mode PWM ControllerMAXIMUM RATINGSVALUE UNITSupply voltage 15 VOutput sink current 1AOutput source current 0.5All othe ..
UCC3889 ,Off-Line Power Supply ControllerFEATURES DESCRIPTION• Transformerless Off-line The UCC1889 controller is optimized for use as an of ..
UCC3889D ,Off-Line Power Supply ControllerELECTRICAL CHARACTERISTICSUCC3889, -40°C to +85°C for the UCC2889, and -55°C to +125°C for the UCC1 ..
UCC3889D ,Off-Line Power Supply ControllerMAXIMUM RATINGS CONNECTION DIAGRAMICC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
UPB1502GR ,1.7 GHz/ 2.0 GHz LOW-POWER TWO-MODULUS PRESCALER DIVIDED-BY-64/65, 128/129applications for example 0.8-1.9 GHz cellular and cordless telephones. The ICs operate on low power ..
UPB1505GR ,3GHz INPUT DIVIDE BY 256, 128, 64 PRESCALER IC FOR ANALOG DBS TUNERSBLOCK DIAGRAMVCC21INPUT1 / 64 1 / 2 1 / 2 Buff.BYPASS 8 4 OUTPUT5, 7 36GND SW1 SW2PIN DESCRIPTIONSP ..
UPB1505GR-E1 ,3.0 GHz PRESCALER DIVIDED BY 256, 128, 64 FOR BS/CS TUNERDATA SHEETBIPOLAR DIGITAL INTEGRATED CIRCUITμPB1505GR3.0 GHz PRESCALER DIVIDED BY 256, 128, 64FOR ..
UPB1506GV-E1 ,3GHz INPUT DIVIDE BY 256, 128, 64 PRESCALER IC FOR ANALOG DBS TUNERSFEATURESx High toggle frequency : fin = 0.5 GHz to 3.0 GHzx High-density surface mounting : 8-pin p ..
UPB1507GV ,3GHz INPUT DIVIDE BY 256, 128, 64 PRESCALER IC FOR ANALOG DBS TUNERSapplications. These ICs divide-by-256, 128 and 64 contribute to produce analog DBS tuners with kit ..
UPB1507GV-E1 ,3GHz INPUT DIVIDE BY 256, 128, 64 PRESCALER IC FOR ANALOG DBS TUNERSDATA SHEETBIPOLAR DIGITAL INTEGRATED CIRCUITSP PPB1506GV, P PPB1507GVP P P P3GHz INPUT DIVID ..
UCC3882DW-1-UCC3882PWTR-1-UCC3882PWTR-1G4
Average Current Mode Synchronous Buck Controller with 5-Bit DAC
UCC3882/-1 www.ti.com SLUS294C –MARCH 1999–REVISED FEBRUARY 2010 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER WITH 5-BIT DAC Check for Samples: UCC3882/-1 1 FEATURES DESCRIPTION • Combined DAC/Voltage Monitor and PWM With Synchronous Rectification Functions The UCC3882 combines high precision reference and voltage monitoring circuitry with average current • 5-Bit Digital-to-Analog (DAC) Converter mode PWM synchronous rectification controller • 1% DAC/Reference Combined Accuracy circuitry to power high-end microprocessors with a • Compatible with 5 V and 12 V Systems and 12 minimum of external components. The UCC3882 V-Only Systems converts 5 V or 12 V to an adjustable output ranging from 1.8VDC to 2.05VDC in 50 mV steps and • Low Offset Current Sense Amplifier 2.1VDC to 3.5VDC in 100 mV steps with 1% DC • Programmable Oscillator Frequency Practical system accuracy. to 700 kHz • Foldback Current Limiting • Overvoltage and Undervoltage Fault Windows • 2-Ω Totem Pole Outputs with Programmable Dead Times to Eliminate Cross-Conduction • Chip Disable Function BLOCK DIAGRAM CAM CAO 4 6 OVP OVP (+ 17.5%) OV OV (+ 9%) PWRGD 2 VSNS 1 UV Current 3 V Amplifier UV (−9%) Voltage Amplifier VDRVHI 19 VFB 15 Turn S Q GATEHI On 18 Delay R PGND 12 RT COMP 16 Anti Cross Condition Foldback 6 ISOUT Current VDRVLO 10 Current Sense Limit 1.37 V Turn Amplifier On 11 GATELO 8 IS− Delay X16 VSNS RT IS+ 7 Output Offset EN 17 5 V REF 4.3 V/4.2 V D0 27 VIN D/C Converter UVLO D1 26 OSC 2 V − 3.5 V, 100 mV VIN 9 or D2 24 1.3 V − 2.05 V, 50 mV 10.5 V/10 V D3 23 5 V VREF 21 REF D4 22 GND 28 13 20 14 UDG−97047−1 COMMAND CT RT 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 1999–2010, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
