BU46K484G
Voltage Detector with Fixed Delay Time

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 range from 2.3V to 4.8V in increments of 0.1V with fixed delay time of 200ms and 400ms, that may be selected according to application.

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Product Detail

 
Part Number | BU46K484G-TL
Status | Recommended
Package | SSOP3 (GND 1pin)
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Under Voltage Detection Voltage [V] (typ.)

4.8

VDET Precision [%]

±1

Reset Active Voltage Range [V]

0.6 to 6

Output Types

CMOS

Reset Delay Timer

Fixed Delay (400msec)

Reset Active State

Low

Manual Reset

No

Watchdog Timer

No

Auto Motive

No

Circuit Current (ON) [µA]

2.3

Circuit Current (OFF) [µA]

2.8

Hysteresis Voltage [V]

VDET x 0.05

L Output Current (LowVol) [mA]

2

L Output Current (HighVol) [mA]

8.5

Comment

1pin GND (PIN rotated)

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

105

Package Size

2.92 x 2.80 (t=1.25)

Features:

・ Counter Timer Built-in
・ No delay time setting capacitor required
・ Low current consumption
・ Two output types (Nch open drain and CMOS output)
・ Package SSOP3 is similar to SOT-23-3 (JEDEC)
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Design Resources

 

Documents

White Paper

  • ISO 26262: Functional Safety Standard for Modern Road Vehicles

Technical Articles

Schematic Design & Verification

  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Tools

Models

  • BU46K484G SPICE Model

2D/3D/CAD

  • SSOP3 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)