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| 型号： | ISL97656IRTZ-TK |
| 厂商： | Intersil |
| 文件页数： | 8/9页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 4A 10TDFN |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 5 V ~ 25 V |
| 输入电压： | 2.3 V ~ 6 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 640kHz，1.2MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 产品目录页面： | 1248 (CN2011-ZH PDF) |
| 其它名称： | ISL97656IRTZ-TKDKR |
ISL97656
Cascaded MOSFET Application
A 24V N-Channel MOSFET is integrated in the boost regulator. For
the applications where the output voltage is greater than 24V, an
external cascaded MOSFET is needed as shown in Figure 16. The
voltage rating of the external MOSFET should be greater than
VIN.
DC PATH BLOCK APPLICATION
There is a DC path in the boost converter from the input to the
output through the inductor and diode. In the non-synchronous
topology, although the system is still in shutdown mode, the
output voltage will be the input voltage minus the forward
voltage diode drop of the Schottky diode. If this voltage is not
desired, the following circuit (see Figure 17) can be used between
VIN
INTERSIL
ISL97656
LX
FB
VOUT
input and inductor to disconnect the DC path when the ISL97656
is in shutdown mode.
INPUT
TO INDUCTOR
EN
FIGURE 17. CIRCUIT TO DISCONNECT THE DC PATH OF BOOST
CONVERTER
FIGURE 16. CASCADED MOSFET TOPOLOGY FOR HIGH OUTPUT
VOLTAGE APPLICATIONS
Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted
in the quality certifications found at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
8
FN6439.6
July 19, 2012
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| ISL97671AIRZ | 功能描述:IC LED DVR PWM CTRL 6CH 20QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
| ISL97671AIRZ-T | 功能描述:IC LED DRVR 6-CH BACKLIGHT 20QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
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