參數(shù)資料
型號: ISL6742
廠商: Intersil Corporation
英文描述: Octal Buffers/Drivers With 3-State Outputs 20-SSOP -40 to 85
中文描述: 先進的雙端PWM控制器
文件頁數(shù): 1/18頁
文件大?。?/td> 422K
代理商: ISL6742
1
FN9183.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL6742
Advanced Double-Ended PWM Controller
The ISL6742 is a high-performance double-ended PWM
controller with advanced synchronous rectifier control and
current limit features. It is suitable for both current- and
voltage-mode control methods.
The ISL6742 includes complemented PWM outputs for
synchronous rectifier (SR) control. The complemented
outputs may be dynamically advanced or delayed relative to
the main outputs using an external control voltage.
Its advanced current sensing circuitry employs sample and
hold methods to provide a precise average current signal.
Suitable for average current limiting, a technique which
virtually eliminates the current tail-out common to peak
current limiting methods, it is also applicable to current
sharing circuits and average current mode control.
This advanced BiCMOS design features an adjustable
oscillator frequency up to 2MHz, internal over-temperature
protection, precision deadtime control, and short
propagation delays. Additionally, Multi-Pulse Suppression
ensures alternating output pulses at low duty cycles where
pulse skipping may occur.
Features
Synchronous Rectifier Control Outputs with Adjustable
Delay/Advance
Adjustable Average Current Signal
3% Tolerance Cycle-by-Cycle Peak Current Limit
Fast Current Sense to Output Delay
Adjustable Oscillator Frequency Up to 2MHz
Adjustable Deadtime Control
Voltage- or Current-Mode Operation
Separate RAMP and CS Inputs for Voltage Feed Forward
or Current-Mode Applications
Tight Tolerance Error Amplifier Reference Over Line,
Load, and Temperature
175
μ
A Start-up Current
Supply UVLO
Adjustable Soft-Start
70ns Leading Edge Blanking
Multi-Pulse Suppression
Internal Over Temperature Protection
Pb-free and ELV, WEEE, RoHS Compliant
Applications
Half-Bridge, Full-Bridge, Interleaved Forward, and Push-
Pull Converters
Telecom and Datacom Power
Wireless Base Station Power
File Server Power
Industrial Power Systems
Ordering Information
PART NUMBER
TEMP. RANGE
(°C)
PACKAGE
PKG. DWG.
#
ISL6742AAZA
(See Note)
-40 to 105
16 Ld QSOP
(Pb-free)
M16.15A
Add -T suffix to part number for tape and reel packaging
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are RoHS compliant and compatible
with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Pinout
ISL6742 (QSOP)
TOP VIEW
CT
CS
OUTB
OUTA
RTD
VDD
FB
VADJ
SS
VREF
IOUT
GND
1
2
4
3
5
6
7
8
9
10
11
12
13
14
15
16
VERR
OUTBN
OUTAN
RAMP
Data Sheet
July 25, 2005
相關PDF資料
PDF描述
ISL6742AAZA-T Advanced Double-Ended PWM Controller
ISL6742AAZA Octal Buffers/Drivers With 3-State Outputs 20-SSOP -40 to 85
ISL6744 Octal Buffers/Drivers With 3-State Outputs 20-SOIC -40 to 85
ISL6744AB Octal Buffers/Drivers With 3-State Outputs 20-SOIC -40 to 85
ISL6744ABZ Octal Buffers/Drivers With 3-State Outputs 20-SOIC -40 to 85
相關代理商/技術參數(shù)
參數(shù)描述
ISL6742AAZA 功能描述:IC REG CTRLR PWM CM/VM 16-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:75 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.3 V ~ 13.5 V 降壓:是 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:0°C ~ 70°C 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:管件 產品目錄頁面:1051 (CN2011-ZH PDF) 其它名稱:296-2543-5
ISL6742AAZA-T 功能描述:IC REG CTRLR PWM CM/VM 16-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR)
ISL6744AABZ 功能描述:IC REG CTRLR PWM VM 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR)
ISL6744AABZ-T 功能描述:IC REG CTRLR PWM VM 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR)
ISL6744AAUZ 功能描述:IC REG CTRLR PWM VM 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR)