White Paper
- ISO 26262: Functional Safety Standard for Modern Road Vehicles
BU45K474G
BU45K474G
延遲時間固定型電壓檢測器
ROHM的BU45xxxxx、BU46xxxxx系列，是採用了CMOS製程的高精度、低耗電流的RESET IC系列。通過內建計數器定時器延遲電路，無需外接延遲時間設定用電容。為保證客戶可根據應用進行選擇，備有Nch漏極開路輸出BU45xxxxx和CMOS輸出BU46xxxxx兩個系列的產品。檢測電壓可在2.3V～4.8V之間按0.1V階躍選擇，固定延遲時間可按200ms、400ms進行選擇。
Data Sheet
* 本產品是標準級的產品。
本產品不建議使用的車載設備。
本產品不建議使用的車載設備。
Product Detail
規格:
Under Voltage Detection Voltage [V] (typ.)
4.7
VDET Precision [%]
±1
Reset Active Voltage Range [V]
0.6 to 6
Output Types
Open drain
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
2.9x2.8 (t=1.45)
功能:
・ 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)
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
- What Is Thermal Design
- Basics of Thermal Resistance and Heat Dissipation
- Method for Calculating Junction Temperature from Transient Thermal Resistance Data
- Thermal Resistance
Tools
Models
- BU45K474G 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)