Datasheet Texas Instruments UCC38502N — 数据表

制造商	Texas Instruments
系列	UCC38502
零件号	UCC38502N

BiCMOS PFC / PWM组合控制器20-PDIP 0至70

数据表

下载

PDF, 1.1 Mb, 修订版: C, 档案已发布: Nov 8, 2001

从文件中提取

价格

状态

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

打包

Pin	20
Package Type	N
Industry STD Term	PDIP
JEDEC Code	R-PDIP-T
Package QTY	20
Carrier	TUBE
Device Marking	UCC38502N
Width (mm)	6.35
Length (mm)	24.33
Thickness (mm)	4.57
Pitch (mm)	2.54
Max Height (mm)	5.08
Mechanical Data	下载

参数化

Control Method	CCM
Device Type	PFC+PWM
Operating Supply Current	4 mA
Operating Supply(Max)	18 V
Operating Temperature Range	0 to 70 C
Package Group	PDIP
Package Size: mm2:W x L	See datasheet (PDIP) PKG
Peak Output Sink Current Gate Drive	1.2 A
Peak Output Source Current Gate Drive	-1.2 A
Practical Operating Frequency(Max)	0.2 MHz
Rating	Catalog
Special Features	< 150W Applications,Average Current Mode,Enable,OVP
Startup Current	0.15 mA
UVLO Thresholds On/Off	16/10 V

生态计划

RoHS

Compliant

设计套件和评估模块

Evaluation Modules & Boards: UCC38500EVM
UCC38500EVM Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
- 下载

应用须知

下载
A New Synchronization Circuit for Power Converters (Rev. A)
PDF, 209 Kb, 修订版: A, 档案已发布: Apr 21, 2010
The synchronization of multiple PWM and PFC controllers is desirable for many reasons. The most common reason is that it keeps all the noise at one particular frequency and makes it easier to filter. The circuit described changes the slope of the ramp to lock the converterвЂ™s switching frequency to an applied signal by a phase locked loop turning it into a voltage controlled oscillator. Furthermore
下载
Startup Current transient of the Leading Edge Triggered PFC Controllers
PDF, 43 Kb, 档案已发布: Jun 30, 2004
下载
Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C)
PDF, 57 Kb, 修订版: C, 档案已发布: Apr 13, 2011
This application note applies to the TI average current mode, leading edge modulation PFC controllers. See Applicable Device Table for part numbers.
下载
DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)
PDF, 80 Kb, 修订版: A, 档案已发布: Nov 6, 2001
下载
Accurate PWM Duty Cycle Clamp
PDF, 58 Kb, 档案已发布: Jan 25, 2002
Power supply applications using current sense transformers require a duty cycle clamp on the pulse width modulator (PWM) to ensure transformer reset. Not all PWMs come with a duty cycle clamp presenting a problem for the power supply designer. This application note shows how to implement a duty cycle clamp by using a simple delay circuit.

模型线

系列: UCC38502 (5)

UCC38502DW UCC38502DWG4 UCC38502DWTR UCC38502N UCC38502NG4

制造商分类

Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction