Datasheet Texas Instruments UCC38C40DR — 数据表

制造商	Texas Instruments
系列	UCC38C40
零件号	UCC38C40DR

BiCMOS低功耗电流模式PWM控制器8-SOIC 0至70

数据表

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PDF, 3.8 Mb, 修订版: G, 档案已发布: Jan 10, 2017

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价格

状态

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	No

打包

Pin	8
Package Type	D
Industry STD Term	SOIC
JEDEC Code	R-PDSO-G
Package QTY	2500
Carrier	LARGE T&R
Device Marking	38C40
Width (mm)	3.91
Length (mm)	4.9
Thickness (mm)	1.58
Pitch (mm)	1.27
Max Height (mm)	1.75
Mechanical Data	下载

参数化

Control Method	Peak Current Mode
Duty Cycle(Max)	100 %
Frequency(Max)	1000 kHz
Frequency(Min)	26 kHz
Gate Drive(Typ)	1 A
Operating Temperature Range	0 to 70 C
Package Group	SOIC
Rating	Catalog
Special Features	Error Amplifier,Multi-topology
Topology	Boost,Buck,Buck-Boost,Flyback,Forward
UVLO Thresholds On/Off	7/6.6 V
Vin(Max)	400 V
Vin(Min)	7 V

生态计划

RoHS

Compliant

应用须知

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UCC38C44 12-V Isolated Bias Supply (Rev. A)
PDF, 324 Kb, 修订版: A, 档案已发布: Oct 9, 2008
This reference design describes a discontinuous, peak current-mode flyback converter whose input voltage is generated from the output of a universal power factor correction circuit. The converter is designed to operate at a switching frequency of 225 kHz, requires minimal parts, and supports an isolated 12-V, 3-W output and a non-isolated 12-V, 1-W output ideally suited for chip bias and voltage f
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UCC38C42 25-W Forward Converter
PDF, 320 Kb, 档案已发布: Sep 6, 2002
This reference design presents a self-resonant reset forward converter using the UCC38C42 BiCMOS Low-Power Current-Mode PWM Controller. The input voltage for this converter is compatible with the telecom input voltage range of 36 VDC to 72 VDC. The converter is designed to operate at a switching frequency of 525 kHz, requires minimal parts, and supports an isolated 2.5-V 10-A output. The complete
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UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers
PDF, 280 Kb, 档案已发布: Feb 7, 2002
Since their introduction in the mid 1980?s the bipolar UC3842 family of Pulse width modulation (PWM)controllers has grown to become the most widely-used control strategy in the power supply industry. [1] The reasons for success are quite clear the devices feature an elegantly simple yet very effective control architecture they use only 8 pins they can drive MOSFET gates directly and they offer
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U-111 Practical Considerations in Current Mode Power Supplies
PDF, 787 Kb, 档案已发布: Sep 5, 1999
This application note explains the numerous PWM functions and ways to maximize their usefulness. It covers practical circuit design considerations such as slope compensation gate drive circuitry external control functions synchronization and paralleling current-mode controlled modules. Circuit diagrams and simplified equations are included.
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DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802
PDF, 42 Kb, 档案已发布: Sep 5, 1999
The UCC3802 offers numerous advantages that allow the power supply design engineer to meet requirements for lower power for battery-operated equipment higher switching frequencies for reduced magnetics size higher levels of circuit integration for improved reliability and lower cost. The UCC3802 family of devices is pin-out compatible with the UC3842 and UC3842A families; however it is not plu
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Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps
PDF, 61 Kb, 档案已发布: Mar 23, 2000
The switch-mode power supply primary current is often sensed using a power resistor. Using an op amp to amplify the current-sense signal can reduce cost and improve noise performance and efficiency. This report reviews the advantages of using an op amp circuit and analyzes the design criteria needed to choose the proper op amp.
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Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A)
PDF, 363 Kb, 修订版: A, 档案已发布: May 28, 2002

模型线

系列: UCC38C40 (6)

UCC38C40D UCC38C40DGK UCC38C40DGKR UCC38C40DR UCC38C40DRG4 UCC38C40P

制造商分类

Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller