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参数资料
| 型号： | BD5244G |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | ROHS COMPLIANT, SSOP-5 |
| 文件页数： | 7/10页 |
| 文件大小： | 269K |
| 代理商： | BD5244G |
Technical Note
6/9
BD52
□□G, BD52□□FVE, BD53□□G, BD53□□FVE series
www.rohm.com
2009.06 - Rev.B
2009 ROHM Co., Ltd. All rights reserved.
Circuit Applications
1) Examples of a common power supply detection reset circuit
Application examples of BD52
□□G/FVE series (Open
Drain output type) and BD53
□□G/FVE series (CMOS
output type) are shown below.
CASE1: the power supply of the microcontroller (VDD2)
differs from the power supply of the reset detection
(VDD1).
Use the open drain output type (BD52
□□G/FVE) attached
a load resistance (RL) between the output and VDD2. (As
shown Fig.15)
CASE2: the power supply of the microcontroller (VDD1) is
same as the power supply of the reset detection (VDD1).
Use CMOS output type (BD53
□□G/FVE) or open drain
output type (BD52
□□G/FVE) attached a load resistance
(RL) between the output and Vdd1. (As shown Fig.16)
When a capacitance CL for noise filtering is connected to
the VOUT pin (the reset signal input terminal of the
microcontroller), please take into account the waveform of
the rise and fall of the output voltage (VOUT).
2) The following is an example of a circuit application in which an OR connection between two types of detection voltages
resets the microcontroller.
When there are many power supplies of the system, power supplies VDD1 and VDD2 are being monitored separately, and it is
necessary to reset the microcomputer, it is possible to use an OR connection on the open drain output type BD52
□□G/FVE
series to pull-up to the desired voltage (VDD3) as shown in Fig.17 and make the output “High” voltage matches the power
supply voltage VDD3 of the microcontroller.
VDD1
BD52□□□
VDD2
GND
Microcontroller
CL
（Noise-filtering
Capacitor）
）
CT
RL
Fig.18 Open Collector Output Type
CL
（Noise-filtering
Capacitor）
VDD1
BD53□□□
Microcontroller
CT
GND
Fig.19 CMOS Output Type
VDD1
VDD3
GND
RST
microcontroller
CT
RL
VDD2
CT
BD52□□□
NO.1
BD52□□□
NO.2
Fig.20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD5244G/FVE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:VOLTAGE DETECTOR IC with adjustable delay time |
| BD5244G-TR | 功能描述:电压监测器/监控器 CMOS DETEC VOLT 4.4V RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| BD5245 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:VOLTAGE DETECTOR IC with adjustable delay time |
| BD5245FVE | 制造商:ROHM 制造商全称:Rohm 功能描述:Voltage Detector IC with Adjustable Output Delay |
| BD5245FVETR | 制造商:ROHM Semiconductor 功能描述: |
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