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BD2270HFV PDF预览

BD2270HFV

更新时间: 2024-01-06 13:04:36
品牌 Logo 应用领域
罗姆 - ROHM 驱动器MOSFET驱动器驱动程序和接口接口集成电路光电二极管控制器
页数 文件大小 规格书
13页 282K
描述
Controller ICs for High Side NMOSFET

BD2270HFV 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOF
包装说明:SSOP-5针数:5
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:9 weeks
风险等级:1.17高边驱动器:YES
接口集成电路类型:CCD DRIVERJESD-30 代码:R-PDSO-F5
长度:1.6 mm功能数量:1
端子数量:5最高工作温度:85 °C
最低工作温度:-25 °C封装主体材料:PLASTIC/EPOXY
封装代码:VSOF封装等效代码:FL6,.047,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED电源:3/5 V
认证状态:Not Qualified座面最大高度:0.6 mm
子类别:MOSFET Drivers最大供电电压:5.5 V
最小供电电压:2.7 V标称供电电压:3 V
表面贴装:YES温度等级:OTHER
端子形式:FLAT端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
断开时间:60 µs接通时间:750 µs
宽度:1.2 mmBase Number Matches:1

BD2270HFV 数据手册

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Technical Note  
BD2270HFV  
Functional Description  
The BD2270HVF is a driver IC to use an N-channel MOSFET as a high side load switch. This IC incorporates the following  
functions.  
1. GATE drive  
A voltage to drive the gate of N-channel MOSFET is generated by a built-in charge pump in the BD2270HFV. The  
built-in charge pump in the BD2270HFV generates a voltage three times as high as the power supply voltage at the  
GATE terminal. In addition, since this IC has a built-in capacitor for the charge pump, it needs no external parts.  
The charge pump operates when the AEN is set to High. When the AEN is set to Low, the GATE terminal voltage is  
fixed to the GND level.  
2. Output discharge circuit  
The output discharge circuit is enabled when the AEN is set to Low. When the discharge circuit is activated, the  
200(Typ.) MOSFET switch located between the DISC terminal and the GND terminal turns ON. Connecting between  
the DISC terminal and the source side (load side) of the N-channel MOSFET makes it possible to immediately  
discharge capacitive load.  
3. Soft start function  
When the AEN terminal input voltage reaches the High level, the built-in charge pump in the BD2270HFV charges the  
gate of the N-channel MOSFET. The turn-on time of the N-channel MOSFET is determined by the GATE capacity. In  
addition, connecting a capacitor to the GATE terminal makes it possible to slow the rise of turn-on time of the  
N-channel MOSFET, thus achieving reduction of the inrush current to a large capacitive load.  
4. Analog control input terminal  
The AEN input of the BD2270HFV is connected to the built-in hysteresis comparator. Consequently, even analog  
signals can control the BD2270HFV, thus facilitating the control of the switch ON-OFF sequence.  
VCC  
V
IN_SWITCH  
VAEN  
VGATE  
VOUT_SWITCH  
放電回路  
Discharge circuit  
ON  
OFF  
ON  
Fig. 34 Operation Timing  
* To turn ON the power supply (VCC, VIN_SWITCH), set the AEN to Low.  
www.rohm.com  
© 2011 ROHM Co., Ltd. All rights reserved.  
2011.05 - Rev.B  
7/12  

BD2270HFV 替代型号

型号 品牌 替代类型 描述 数据表
BD2270HFV-TR ROHM

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