BD4860FVE-TR

更新时间： 2024-01-21 14:02:16

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
10页	259K
描述
Power Supply Support Circuit, Fixed, 1 Channel, +6VV, CMOS, PDSO5, ROHS COMPLIANT, VSOF-5

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技术参数
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BD4860FVE-TR 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：	SSOP
包装说明：	ROHS COMPLIANT, SSOP-5	针数：	5
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	7 weeks
风险等级：	0.73	Base Number Matches：	1

BD4860FVE-TR 数据手册

Technical Note

BD48□□G, BD48□□FVE, BD49□□G, BD49□□FVE series

 Circuit Applications

1) Examples of a common power supply detection reset circuit.

Application examples of BD48□□G/FVE series (Open

Drain output type) and BD49□□G/FVE series (CMOS

output type) are shown below.

VDD1

VDD2

Microcontroller

CASE1: the power supply of the microcontroller (VDD2)

differs from the power supply of the reset detection

(VDD1).

BD48□□□

Use the open drain output type (BD48□□G/FVE) attached

a load resistance (RL) between the output and VDD2. (As

shown Fig.15)

（Noise-filtering

Capacitor）

GND

Fig.15 Open Collector Output Type

CASE2: the power supply of the microcontroller (VDD1) is

same as the power supply of the reset detection (VDD1).

Use CMOS output type (BD49□□G/FVE) or open drain

output type (BD48□□G/FVE) attached a load resistance

(RL) between the output and Vdd1. (As shown Fig.16)

VDD1

BD49□□□

Microcontroller

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).

(Noise-filtering

Capacitor）

GND

Fig.16 CMOS Output Type

2) The following is an example of a circuit application in which an OR connection between two types of detection voltages

resets the microcontroller.

VDD1

VDD2

VDD3

Microcontroller

RST

BD48□□□

GND

Fig.17

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

BD48□□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.

www.rohm.com

2009.04 - Rev.A

6/9

1...3 4 567 8 9 10

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