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IRS27951S の電気的特性と機能

IRS27951SのメーカーはInternational Rectifierです、この部品の機能は「RESONANT HALF-BRIDGE CONVERTER CONTROL IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 IRS27951S
部品説明 RESONANT HALF-BRIDGE CONVERTER CONTROL IC
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IRS27951S Datasheet, IRS27951S PDF,ピン配置, 機能
IRS27951S
IRS27952(4)S
RESONANT HALF-BRIDGE CONVERTER CONTROL IC
Features
Simple primary-side control solution for fixed and variable
frequency DC-DC resonant converters.
Max 500kHz per channel output with 50% duty cycle
Floating channel bootstrap operation up to +600Vdc
Programmable minimum and maximum switching frequency
Programmable soft start frequency and soft start time
Programmable dead time
Micropower start-up & ultra low quiescent current
Over-current protection using low side MOSFET Rds(on)
User initiated micropower “Sleep mode”
Under-voltage Lockout
Simple design with minimal component count.
Lead-free
Product Summary
Topology
VOFFSET
VOUT
IO+ & IO- (typical)
Dead-time
(programmable)
Package Options
Typical Application
LCD & PDP TV
Telecom SMPS, PC SMPS
Home Audio Systems
IRS27951S/IRS27952S
Half-Bridge
600 V
VCC
300 mA & 900 mA
200ns~2us
14-lead SOIC
IRS279524S
Ordering Information
Base Part Number
Package Type
IRS27951
SOIC8N
IRS27952
SOIC8N
IRS279524
SOIC14N
Standard Pack
Form
Quantity
Tube/Bulk
95
Tape and Reel
2500
Tube/Bulk
95
Tape and Reel
2500
Tube/Bulk
55
Tape and Reel
2500
Complete Part Number
IRS27951SPBF
IRS27951STRPBF
IRS27952SPBF
IRS27952STRPBF
IRS279524SPBF
IRS279524STRPBF
1 www.irf.com © 2012 International Rectifier
November 8th, 2012
Free Datasheet http://www.datasheet4u.com/

1 Page





IRS27951S pdf, ピン配列
Table of Contents
Ordering Information
Typical Application Diagram
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Functional Block Diagram
Input/Output Pin Equivalent Circuit Diagram
Lead Definitions
Lead Assignments
State Diagram
Application Information and Additional Details
Package Details
Tape and Reel Details
Part Marking Information
Qualification Information
IRS27951S
IRS27952(4)S
Page
1
2
5
5
6
8
9
10
10
12
13
23
25
27
28
3 www.irf.com © 2012 International Rectifier
November 8th, 2012
Free Datasheet http://www.datasheet4u.com/


3Pages


IRS27951S 電子部品, 半導体
IRS27951S
IRS27952(4)S
Electrical Characteristics
VCC=VBS=15V, VS=0V, CVCC=CBS=0.1uF, CLO=CHO=1nF, RT=50.5k, CT=200pF and TA = 25°C unless
otherwise specified. The output voltage and current (VO and IO) parameters are referenced to COM and are
applicable to the respective HO and LO output leads.
Symbol
Definition
Low Voltage Supply Characteristics
VCCUV+
VCCUV-
VCC turn on threshold
VCC turn off threshold
(Under Voltage Lock Out)
VCCUVHYS VCC undervoltage lockout hysteresis
ICCSTART VCC startup current
ISLEEP
Sleep mode VCC supply current
IQCC Quiescent VCC supply current
ICC46KHz VCC operating current @ fosc = 46KHz
ICC285KHz VCC operating current @ fosc = 285KHz
Floating Supply Characteristics
VBSUV+
VBSUV-
VBS turn on threshold
VBS turn on threshold
(Under Voltage Lock Out)
VBSUVHYS VBS undervoltage lockout hysteresis
ILKVS
VS Offset supply leakage current
IBSSTART VBS startup current
IQBS Quiescent VBS supply current
IBS46KHz VBS operating current @ fosc = 46KHz
IBS285KHz VBS operating current @ fosc = 285KHz
Oscillator I/O Characteristics
fSW Oscillator frequency
VCT+
VCT-
ICTSTART
VRT
CM
D
tDT
Upper CT ramp voltage threshold
Lower CT ramp voltage threshold
CT/SD pin startup current
Voltage reference at RT pin
Current mirror ratio
Output duty cycle (LO and HO)
High/low output dead time
Min Typ Max Units Test Conditions
10.1 11 11.9
8.1 9 9.9
V
N/A
--- 2 ---
--- 50 100
µA
VCC = VCCUV+
-0.1V
--- 150 200
VCT/SD<VEN2, VBS=0V
--- 2 2.5
VEN1 < VCT/SD < 4.5V
--- 3.1 4.5 mA
RT=50.5k
--- 8.7 11
RT=7.32k
7.6 8.5 9.4
7 7.9 8.8
V
N/A
--- 0.6 ---
--- --- 50
VB = VS = 600 V
--- 50 100 µA VBS VBSUV+ - 0.1V
--- 50 100
VEN1 < VCT/SD < 4.5V
--- 1 1.5
mA
--- 5.7
7
RT=50.5k
RT=7.32k
44.3 46.6 48.9
kHz
271 285 299
--- 5.0 ---
--- 3.0 ---
V
--- 10 --- µA
1.92 2.0 2.08 V
--- 1 --- A/A
--- 50 ---
170 210 250
%
ns
CT=200pF,
RT=50.5k
CT=200pF,
RT=7.32k
GBD
VCT/SD < VEN1
CT=200pF
6 www.irf.com © 2012 International Rectifier
November 8th, 2012
Free Datasheet http://www.datasheet4u.com/

6 Page



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部品番号部品説明メーカ
IRS27951S

RESONANT HALF-BRIDGE CONVERTER CONTROL IC

International Rectifier
International Rectifier


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