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参数资料
| 型号： | ISL6845IUZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST FLYBK ISO 8MSOP |
| 标准包装： | 2,500 |
| 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 ~ 16 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
ISL6840, ISL6841, ISL6842,
ISL6843, ISL6844, ISL6845
Data Sheet
February 23, 2012
FN9124.11
Improved Industry Standard Single-Ended
Current Mode PWM Controller
The ISL6840, ISL6841, 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 overcurrent 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, 60μA 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
? 60μA Start-up Current, 100μA Maximum
? 25ns 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
PART NUMBER
RISING UVLO (V) MAX. DUTY CYCLE (%)
? Tight Tolerance Current Limit Threshold
ISL6840
ISL6841
ISL6842
ISL6843
ISL6844
ISL6845
7.0
7.0
14.4
8.4
14.4
8.4
100
50
100
100
50
50
? Pb-Free Available (RoHS Compliant)
Applications
? Telecom and Datacom Power
? Wireless Base Station Power
? File Server Power
? Industrial Power Systems
Pinouts
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
(8 LD SOIC, MSOP)
TOP VIEW
? PC Power Supplies
? Isolated Buck and Flyback Regulators
? Boost Regulators
COMP 1
FB 2
CS 3
RTCT 4
8 VREF
7 VDD
6 OUT
5 GND
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
(8 LD DFN)
TOP VIEW
COMP
FB
CS
RTCT
1
2
3
4
8
7
6
5
VREF
VDD
OUT
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2004, 2005, 2007, 2008, 2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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| ISL6882IAZ | 功能描述:IC CTRLR CCFL CHIPSET 20-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 显示器驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 显示器类型:真空荧光 (VF) 配置:5 x 7（矩阵） 接口:串行 数字或字符:- 电流 - 电源:3.5mA 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商设备封装:16-QSOP 包装:带卷 (TR) |
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