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參數資料
| 型號： | ISL8840A |
| 廠商： | Intersil Corporation |
| 英文描述： | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| 中文描述： | 高性能的行業標準單端電流模式PWM控制器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 313K |
| 代理商： | ISL8840A |
1
FN6320.3
ISL8840A, ISL8841A, ISL8842A,
ISL8843A, ISL8844A, ISL8845A
High Performance Industry Standard
Single-Ended Current Mode PWM
Controller
The ISL884xA is a high performance drop-in replacement for
the popular 28C4x and 18C4x PWM controllers suitable for a
wide range of power conversion applications including
boost, flyback, and isolated output configurations. Its fast
signal propagation and output switching characteristics
make this an ideal product for existing and new designs.
Features include 30V operation, low operating current, 90
μ
A
start-up current, adjustable operating frequency to 2MHz,
and high peak current drive capability with 20ns rise and fall
times.
Pinout
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
(8 LD SOIC, MSOP)
TOP VIEW
Features
1A MOSFET gate driver
90
μ
A start-up current, 125
μ
A maximum
35ns propagation delay current sense to output
Fast transient response with peak current mode control
30V operation
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
1.5MHz bandwidth error amplifier
Tight tolerance voltage reference over line, load and
temperature
±3% current limit threshold
Pb-free plus anneal available
and ELV, WEEE, RoHS
Compliant
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
PART NUMBER
RISING UVLO
MAX. DUTY CYCLE
ISL8840A
7.0
100%
ISL8841A
7.0
50%
ISL8842A
14.4V
100%
ISL8843A
8.4V
100%
ISL8844A
14.4V
50%
ISL8845A
8.4V
50%
COMP
FB
RTCT
VREF
VDD
OUT
GND
1
2
3
4
8
CS
7
6
5
Data Sheet
April 18, 2007
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, 2006, 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
相關PDF資料 |
PDF描述 |
|---|---|
| ISL8840AABZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8840AAUZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8840AMBZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8840AMUZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8841A | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL8840AABZ | 功能描述:電流型 PWM 控制器 CUR MODE PWM 100% DC 7.0V UVLO 8LD RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL8840AABZ-T | 功能描述:IC REG CTRLR BST FLYBK ISO 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 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: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) |
| ISL8840AAUZ | 功能描述:電流型 PWM 控制器 CUR MODE PWM 100% DC 7.0V UVLO 8LD RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL8840AAUZ-T | 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 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: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) |
| ISL8840AMBEP | 制造商:Intersil Corporation 功能描述:CURRENT MODE PWM CNTRLR 1A 8SOIC N - Rail/Tube |
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