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参数资料
| 型号： | BD45485G |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | SSOP-5 |
| 文件页数： | 5/9页 |
| 文件大小： | 733K |
| 代理商： | BD45485G |
5/8
●Circuit Applications
1）Examples of a common power supply detection reset circuit.
Application examples of BD45□□□G series (Open Drain output
type) and BD46□□□G 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 (BD45□□□G) attached a load
resistance (RL) between the output and VDD2. (As shown Figure
18)
CASE2: the power supply of the microcontroller (VDD1) is same
as the power supply of the reset detection (VDD1).
Use CMOS output type (BD46□□□G) or open drain output type
(BD45□□□G) attached a load resistance (RL) between the
output and Vdd1. (As shown Figure 19)
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 BD45□□□G series to pull-up to the
desired voltage (VDD3) as shown in Fig. 20 and make the output “High” voltage matches the power supply voltage VDD3 of the
microcontroller.
VDD2
VDD1
VDD3
GND
microcontroller
RL
BD45□□□
No.1
ER
VOUT
ER
VOUT
BD45□□□
No.2
RST
VDD1
VDD2
GND
BD45□□□
Microcontroller
CL
（
Noise-filtering
Capacitor）
RL
Fig.18 Open Collector Output Type
CL
（
Noise-filtering
Capacitor）
VDD1
GND
BD46□□□
Microcontroller
Fig.19 CMOS Output Type
Fig.20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD45485G-TR | 功能描述:电压监测器/监控器 RESET DETEC VOLT 2.3V 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 |
| BD45E231 | 制造商:ROHM 制造商全称:Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
| BD45E231G-MTR | 制造商:ROHM 制造商全称:Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
| BD45E232 | 制造商:ROHM 制造商全称:Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
| BD45E232G-MTR | 制造商:ROHM 制造商全称:Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
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