UCC28C43-EP Series

Enhanced Product Bicmos Low-Power Current-Mode Pwm Controller

Catalog

Enhanced Product Bicmos Low-Power Current-Mode Pwm Controller

Part	Output Configuration	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Topology	Function	Output Type	Number of Outputs	Duty Cycle (Max) [Max]	Control Features	Package / Case	Package / Case [y]	Package / Case [x]	Mounting Type	Operating Temperature [custom]	Frequency - Switching [Max]	Output Phases	Supplier Device Package	Package / Case	Package / Case	Voltage - Input [Min]	Voltage - Input [Max]	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications
Texas Instruments UCC28C43DG4	Positive	18 V	7.6 V	Boost Flyback Forward Converter	Step-Up Step-Up/Step-Down	Transistor Driver	1	96 %	Frequency Control	8-SOIC	3.9 mm	0.154 in	Surface Mount	-40 °C 105 °C	1 MHz	1	8-SOIC
Texas Instruments UCC28C43P	Positive	18 V	7.6 V	Boost Flyback Forward Converter	Step-Up Step-Up/Step-Down	Transistor Driver	1	96 %	Frequency Control	8-DIP			Through Hole	-40 °C 105 °C	1 MHz	1	8-PDIP	0.3 in	7.62 mm
Texas Instruments UCC28C43D	Positive	18 V	7.6 V	Boost Flyback Forward Converter	Step-Up Step-Up/Step-Down	Transistor Driver	1	96 %	Frequency Control	8-SOIC	3.9 mm	0.154 in	Surface Mount	-40 °C 105 °C	1 MHz	1	8-SOIC
Texas Instruments UCC28C43DRG4	Positive	18 V	7.6 V	Boost Flyback Forward Converter	Step-Up Step-Up/Step-Down	Transistor Driver	1	96 %	Frequency Control	8-SOIC	3.9 mm	0.154 in	Surface Mount	-40 °C 105 °C	1 MHz	1	8-SOIC
Texas Instruments UCC28C43MDREP										8-SOIC	3.9 mm	0.154 in	Surface Mount				8-SOIC			-3 V	6.3 V	2.3 mA	125 °C	-55 °C	18 V	7.6 V	PWM Controller

Catalog

Enhanced Product Bicmos Low-Power Current-Mode Pwm Controller

Key Features

• Controlled BaselineOne Assembly/Test Site, One Fabrication SiteExtended Temperature Performance of -55°C to 125°CEnhanced Diminishing Manufacturing Sources (DMS) SupportEnhanced Product-Change NotificationQualification Pedigree(1)Enhanced Replacements for UC2842A Family With Pin-to-Pin Compatibility1 MHz Operation50 µA Standby Current, 100 µA MaximumLow Operating Current of 2.3 mA at 52 kHzFast 35 ns Cycle-by-Cycle Overcurrent Limiting±1 A Peak Output CurrentRail-to-Rail Output Swings With 25 ns Rise and 20 ns Fall Times±1% Initial Trimmed 2.5 V Error Amplifier ReferenceTrimmed Oscillator Discharge CurrentNew Undervoltage Lockout VersionsMSOP-8 Package Minimizes Board SpaceAPPLICATIONSSwitch Mode Power SuppliesDC-to-DC ConvertersBoard Mount Power Modules(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.Controlled BaselineOne Assembly/Test Site, One Fabrication SiteExtended Temperature Performance of -55°C to 125°CEnhanced Diminishing Manufacturing Sources (DMS) SupportEnhanced Product-Change NotificationQualification Pedigree(1)Enhanced Replacements for UC2842A Family With Pin-to-Pin Compatibility1 MHz Operation50 µA Standby Current, 100 µA MaximumLow Operating Current of 2.3 mA at 52 kHzFast 35 ns Cycle-by-Cycle Overcurrent Limiting±1 A Peak Output CurrentRail-to-Rail Output Swings With 25 ns Rise and 20 ns Fall Times±1% Initial Trimmed 2.5 V Error Amplifier ReferenceTrimmed Oscillator Discharge CurrentNew Undervoltage Lockout VersionsMSOP-8 Package Minimizes Board SpaceAPPLICATIONSSwitch Mode Power SuppliesDC-to-DC ConvertersBoard Mount Power Modules(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

Description

The UCC28C4x family are high performance current mode PWM controllers. They are enhanced BiCMOS versions with pin-for-pin compatibility to the industry standard UC284xA family and UC284x family of PWM controllers. In addition, lower startup voltage versions of 7 V are offered as UCC28C40 and UCC28C41. Providing necessary features to control fixed frequency, peak current mode power supplies, this family offers several performance advantages. These devices offer high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and low operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1 A peak output current capability with improved rise and fall times for driving large external MOSFETs directly. The UCC28C4x family is offered in 8-pin package SOIC (D). The UCC28C4x family are high performance current mode PWM controllers. They are enhanced BiCMOS versions with pin-for-pin compatibility to the industry standard UC284xA family and UC284x family of PWM controllers. In addition, lower startup voltage versions of 7 V are offered as UCC28C40 and UCC28C41. Providing necessary features to control fixed frequency, peak current mode power supplies, this family offers several performance advantages. These devices offer high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and low operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1 A peak output current capability with improved rise and fall times for driving large external MOSFETs directly. The UCC28C4x family is offered in 8-pin package SOIC (D).