ROHM Product Detail

BD87B34FVM-C

車電用附看門狗計時器電壓檢測器
Data Sheet 購買

BD87B34FVM-C
車電用附看門狗計時器電壓檢測器

Data Sheet 購買
Data Sheet 購買
料號 | BD87B34FVM-CTR
狀態 | 推薦品
封裝 | MSOP8
包裝形式 | Taping
單位數量 | 3000
最小包裝數量 | 3000
RoHS | Yes

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Description

BD87B34FVM-C整合了監控微電腦輸入電壓的重置(RESET)功能，以及監控微電腦時脈訊號的看門狗計時器(WDT)。即使輸入電壓高達20V，也維持低靜態電流，有助於提高各種系統的冗餘性，同時保持低電流消耗。RESET偵測電壓可透過調整外部電阻來選擇固定或可變類型。此外，RESET延遲時間和看門狗監控時間可透過外部電容進行調整。

Product Detail

Specifications
Functional Safety

Specifications

Under Voltage Detection Voltage [V] (typ.)

3.4

VDET Precision [%]

±2.0

Reset Active Voltage Range [V]

2 to 20

Output Types

Open drain

Reset Active State

Low

Manual Reset

No

Watchdog Timer

Yes

SENSE Pin

No

Auto Motive

Yes

Circuit Current (ON) [µA]

4.5

Circuit Current (OFF) [µA]

3

Hysteresis Voltage [V]

VDET×0.036

WDT Active Voltage Range [V]

VDET+VRHY to 20

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Package

MSOP8

Reference Code

VSSOP-8

Package Size

4.0x2.9 (t=0.9)

Common Standard

AEC-Q100 (Automotive Grade)

Features

  • 符合AEC-Q100標準 (Grade 1)
  • 支援功能安全車用產品
  • 符合車電應用標準
  • 整合Power ON與欠壓偵測重置
  • 整合看門狗計時器
  • 可透過外部電容調整重置延遲時間和看門狗監控時間
類別 : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.
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