參數(shù)資料
型號(hào)： ISL6845IRZ-T
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： Improved Industry Standard Single-Ended Current Mode PWM Controller
中文描述： 1 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO8
封裝： 2 X 3 MM, ROHS COMPLIANT, PLASTIC, DFN-8
文件頁(yè)數(shù)： 1/9頁(yè)
文件大?。?/td> 264K
代理商： ISL6845IRZ-T
1
FN9124.1
ISL6842, ISL6843, ISL6844, ISL6845
Improved Industry Standard Single Ended
Current Mode PWM Controller
The ISL6842, ISL6843, ISL6844, ISL6845 family of
adjustable frequency, low power, pulse width modulating
(PWM) current mode controllers is designed for a wide range
of power conversion applications including boost, flyback,
and isolated output configurations. Peak current mode
control effectively handles power transients and provides
inherent over-current protection.
This advanced BiCMOS design is pin compatible with the
industry standard 384x family of controllers and offers
significantly improved performance. Features include low
operating current, 60
μ
A start-up current, adjustable
operating frequency to 2MHz, and high peak current drive
capability with 20ns rise and fall times.
Features
1A MOSFET gate driver
60
μ
A startup current, 100
μ
A maximum
30ns propagation delay current sense to output
Fast transient response with peak current mode control
Adjustable switching frequency to 2MHz
20ns rise and fall times with 1nF output load
Trimmed timing capacitor discharge current for accurate
deadtime/maximum duty cycle control
High bandwidth error amplifier
Tight tolerance voltage reference over line, load, and
temperature
Tight tolerance current limit threshold
Applications
Telecom and Datacom Power
Wireless Base Station Power
File Server Power
Industrial Power Systems
PC Power Supplies
Isolated Buck and Flyback Regulators
Boost Regulators
Pinout
ISL6842, ISL6843, ISL6844, ISL6845
(8-PIN SOIC, MSOP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG.
DWG. #
ISL6842IB
-40 to 105
8 Ld SOIC
M8.15
ISL6842IU
-40 to 105
8 Ld MSOP
M8.118
ISL6843IB
-40 to 105
8 Ld SOIC
M8.15
ISL6843IU
-40 to 105
8 Ld MSOP
M8.118
ISL6844IB
-40 to 105
8 Ld SOIC
M8.15
ISL6844IU
-40 to 105
8 Ld MSOP
M8.118
ISL6845IB
-40 to 105
8 Ld SOIC
M8.15
ISL6845IU
-40 to 105
8 Ld MSOP
M8.118
NOTE: Add -T to part number for Tape and Reel packaging.
PART NUMBER
RISING UVLO
MAX. DUTY CYCLE
ISL6842
14.4V
100%
ISL6843
8.4V
100%
ISL6844
14.4V
50%
ISL6845
8.4V
50%
COMP
FB
RTCT
VREF
VDD
OUT
GND
1
2
3
4
8
CS
7
6
5
Data Sheet
October 2003
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
相關(guān)PDF資料
PDF描述
ISL6845IU Octal Buffers/Drivers With 3-State Outputs 20-SO -40 to 85
ISL6845IBZ Improved Industry Standard Single-Ended Current Mode PWM Controller
ISL6845IUZ Improved Industry Standard Single-Ended Current Mode PWM Controller
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ISL72991RHVF Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6845IU 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無(wú) 升壓:無(wú) 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁(yè)面:1316 (CN2011-ZH PDF)
ISL6845IU-T 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無(wú) 升壓:無(wú) 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁(yè)面:1316 (CN2011-ZH PDF)
ISL6845IUZ 功能描述:電流型 PWM 控制器 CUR MODE PWM 50% DUT CYCLE 8.4V UVLO 8LD RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
ISL6845IUZ-T 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 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)
ISL6881CAZ-T 制造商:Intersil Corporation 功能描述:
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