CS51221 datasheet(1/14 Pages) ONSEMI

部品番号	CS51221

部品情報	Enhanced Voltage Mode PWM Controller

PDF	14 Pages

Scroll/Zoom	100%

メーカー	ONSEMI [ON Semiconductor]

ホームページ	http://www.onsemi.com

Logo

1 / 14 page

September, 2005 − Rev. 8

1

Publication Order Number:

CS51221/D

CS51221

Enhanced Voltage Mode

PWM Controller

The CS51221 fixed frequency feed forward voltage mode PWM

controller contains all of the features necessary for basic voltage mode

operation. This PWM controller has been optimized for high

frequency primary side control operation. In addition, this device

includes such features as: Soft−Start, accurate duty cycle limit control,

less than 50

mA startup current, over and undervoltage protection, and

bidirectional synchronization. The CS51221 is available in a 16 lead

SOIC narrow surface mount package.

Features

• 1.0 MHz Frequency Capability

• Fixed Frequency Voltage Mode Operation, with Feed Forward

• Thermal Shutdown

• Undervoltage Lock−Out

• Accurate Programmable Max Duty Cycle Limit

• 1.0 A Sink/Source Gate Drive

• Programmable Pulse−By−Pulse Overcurrent Protection

• Leading Edge Current Sense Blanking

• 75 ns Shutdown Propagation Delay

• Programmable Soft−Start

• Undervoltage Protection

• Overvoltage Protection with Programmable Hysteresis

• Bidirectional Synchronization

• 25 ns GATE Rise and Fall Time (1.0 nF Load)

• 3.3 V 3% Reference Voltage Output

• Pb−Free Packages are Available*

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

VFB

ISET

1

16

COMP

RTCT

SS

OV

LGND

UV

VREF

FF

VCC

SYNC

PGND

ISENSE

VC

GATE

PIN CONNECTIONS AND

MARKING DIAGRAM

1

16

http://onsemi.com

Device

Package

Shipping†

ORDERING INFORMATION

CS51221ED16

SOIC−16

48 Units / Rail

CS51221EDR16

SOIC−16 2500 Tape & Reel

CS51221EDR16G

SOIC−16

(Pb−Free)

2500 Tape & Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

CS51221ED16G

SOIC−16

(Pb−Free)

48 Units / Rail

CS51221EDTB16G

TSSOP−16

(Pb−Free)

96 Units / Rail

CS51221EDTB16R2G TSSOP−16

(Pb−Free)

SOIC−16

D SUFFIX

CASE 751B

1

16

TSSOP−16

DTB SUFFIX

CASE 948F

CS51221= Specific Device Code

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W = Work Week

G

= Pb−Free Package

1

16

2500 Tape & Reel

同様の部品番号 - CS51221

メーカー	部品番号	データシート	部品情報
Cherry Semiconductor Co...	CS51221	164Kb / 12P	Enhanced Voltage Mode PWM Controller Rev. 3/26/99
ON Semiconductor	CS51221	3Mb / 4P	AC-DC Offline Switching Controllers/Regulators Rev.0, Jun-2005
ON Semiconductor	CS51221	178Kb / 14P	Enhanced Voltage Mode PWM Controller September, 2005 ??Rev. 8
Cherry Semiconductor Co...	CS51221ED16	164Kb / 12P	Enhanced Voltage Mode PWM Controller Rev. 3/26/99
ON Semiconductor	CS51221ED16	178Kb / 14P	Enhanced Voltage Mode PWM Controller September, 2005 ??Rev. 8

More results

同様の説明 - CS51221

メーカー	部品番号	データシート	部品情報
Semtech Corporation	SC1103	97Kb / 8P	VOLTAGE MODE PWM CONTROLLER
Cherry Semiconductor Co...	CS51021	170Kb / 9P	Enhanced Current Mode PWM Controller
Cherry Semiconductor Co...	CS51221	164Kb / 12P	Enhanced Voltage Mode PWM Controller Rev. 3/26/99
Microsemi Corporation	LX1684	294Kb / 12P	Voltage-Mode PWM Controller
Taiwan Semiconductor Co...	TS494	138Kb / 7P	Voltage Mode PWM Controller
ON Semiconductor	CS51021A	130Kb / 11P	Enhanced Current Mode PWM Controller February, 2006 ??Rev. 8
	NCP1294	229Kb / 13P	Enhanced Voltage Mode PWM Controller July, 2009 ??Rev. 0
	CS51221	178Kb / 14P	Enhanced Voltage Mode PWM Controller September, 2005 ??Rev. 8
	CS51221	178Kb / 14P	Enhanced Voltage Mode PWM Controller September, 2005 ??Rev. 8
Shaoxing Devechip Micro...	SDC7500	308Kb / 10P	Voltage Mode PWM Controller