参数资料
型号: ISL8845AMBZ
厂商: Intersil
文件页数: 1/15页
文件大小: 0K
描述: IC REG CTRLR BST FLYBK ISO 8SOIC
标准包装: 980
PWM 型: 电流模式
输出数: 1
频率 - 最大: 2MHz
占空比: 50%
电源电压: 9 V ~ 30 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -55°C ~ 125°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
?
ISL8840A, ISL8841A, ISL8842A,
ISL8843A, ISL8844A, ISL8845A
Data Sheet
April 18, 2007
FN6320.3
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.
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
PART NUMBER
ISL8840A
ISL8841A
ISL8842A
ISL8843A
ISL8844A
ISL8845A
RISING UVLO
7.0
7.0
14.4V
8.4V
14.4V
8.4V
MAX. DUTY CYCLE
100%
50%
100%
100%
50%
50%
? 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
Pinout
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
(8 LD SOIC, MSOP)
TOP VIEW
? Wireless base station power
? File server power
? Industrial power systems
? PC power supplies
COMP 1
FB 2
8 VREF
7 VDD
? Isolated buck and flyback regulators
? Boost regulators
CS 3
RTCT 4
1
6 OUT
5 GND
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.
相关PDF资料
PDF描述
GCC40DREF CONN EDGECARD 80POS .100 EYELET
ISL8845AMUZ IC REG CTRLR BST FLYBK ISO 8MSOP
GSC19DRAN CONN EDGECARD 38POS R/A .100 SLD
ISL8843AABZ IC REG CTRLR BST FLYBK ISO 8SOIC
GMC19DRAN CONN EDGECARD 38POS R/A .100 SLD
相关代理商/技术参数
参数描述
ISL8845AMBZ-T 功能描述:IC REG CTRLR BST FLYBK ISO 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR)
ISL8845AMUZ 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR)
ISL8845AMUZ-T 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR)
ISL88550AEVAL1 功能描述:EVALUATION BOARD 1 ISL88550A RoHS:否 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像,彩色(RGB) 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
ISL88550AEVAL1Z 功能描述:EVALUATION BOARD 1 ISL88550A RoHS:是 类别:编程器,开发系统 >> 评估板 - DC/DC 与 AC/DC(离线)SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC,步升 输出及类型:1,非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969