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參數(shù)資料
| 型號(hào)： | BD45485G |
| 元件分類(lèi)： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | SSOP-5 |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 733K |
| 代理商： | BD45485G |
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●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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BD45485G-TR | 功能描述:電壓監(jiān)測(cè)器/監(jiān)控器 RESET DETEC VOLT 2.3V RoHS:否 制造商:Texas Instruments 監(jiān)測(cè)電壓數(shù):2 監(jiān)測(cè)電壓:Adjustable 輸出類(lèi)型:Open Drain 欠電壓閾值: 過(guò)電壓閾值: 準(zhǔn)確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風(fēng)格:SMD/SMT |
| BD45E231 | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
| BD45E231G-MTR | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
| BD45E232 | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
| BD45E232G-MTR | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Counter Timer Built-in CMOS Voltage Detector IC |
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