Datasheet > BU46K254G-TL

BU46K254G-TL

更新时间： 2025-09-18 19:47:27

品牌	Logo	应用领域
罗姆 - ROHM		监控
页数	文件大小	规格书
17页	1017K
描述
监控器推挽式/图腾柱1通道3-SSOP

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BU46K254G-TL 数据手册

Datasheet

Voltage Detector IC Series

Counter Timer Built-in

CMOS Voltage Detector IC

BU45Kxxxx, BU46Kxxxx, BU45Lxxxx series

Key Specifications

◼ Detection voltage:

●General Description

2.3V, 2.4V, 2.6V, 2.9V, 3.0V,

3.3V, 3.6V, 4.0V, 4.2V (Typ.)

ROHM’s BU45xxxxx and BU46xxxxx series are highly

accurate, low current consumption voltage detector IC

series. Because the counter timer delay circuit is built-in,

an external capacitor for the delay time setting is

unnecessary. Two output types are available (Nch open

drain and CMOS output) and detection voltages are

2.3V, 2.4V, 2.6V, 2.9V, 3.0V, 3.3V, 3.6V, 4.0V, 4.2V with

fixed delay time of 200ms and 400ms, that may be

selected according to application.

◼ High accuracy detection voltage:

◼ Low current consumption:

±1.0%

2.3µA (Typ.)

-40°C to +105°C

200ms

◼ Operating temperature range:

◼ Two internal, fixed delay time:

400ms

●Package

●Features

SSOP3

2.92mm x 2.80mm x 1.25mm

◼ Counter Timer Built-in

◼ No delay time setting capacitor required

◼ Low current consumption

●Applications

◼ Two output types (Nch open drain and CMOS output)

◼ Package SSOP3 is similar to SOT-23-3 (JEDEC)

Circuits using microcontrollers or logic circuits that require

a reset

●Typical Application Circuit

DD1

DD2

DD1

Micro

controller

Micro

controller

BD46 xxxxx

BU45 xxxxx

Noise-filtering

（

Noise-filtering

（

Capacitor

）

Capacitor

）

GND

（Open Drain Output Type）

（CMOS Output Type）

BU45xxxxx series

BU46xxxxx series

●Connection Diagram

●Pin Descriptions

BU45KxxxG / BU46KxxxG

SSOP3

PIN No.

Symbol

Function

GND

VDD

GND

VOUT

VDD

GND

Reset Output

Power Supply Voltage

TOP VIEW

BU45LxxxG

PIN No.

Symbol

VOUT

VDD

Function

Reset Output

Power Supply Voltage

GND

VOUT

VDD

GND

VOUT

BU45KxxxG

BU46KxxxG

BU45LxxxG

GND

○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays.

TSZ02201-0R7R0G300130-1-2

02.Sep.2021 Rev.006

･

TSZ22111 14 001

1/14

12 3 4 5 6 7...17

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