車電用 多輸入開關監控IC - BD3375KV-C

BD3375KV-C是22通道的開關輸入監控IC。可監控連接於各通道的機械開關的狀態變化,並使MCU產生中斷。使用序列介面,可讀取中斷原因和向內部寄存器進行寫入。22通道的開關輸入分為VPUB和VPUA兩種電源系統,可分為電池系統和電源控制系統來區分使用。工作模式有正常模式和休眠模式兩種。每種模式均可通過寄存器的設置,來設置開關引腳的始終監控和間歇監控。當設置為間歇監控時,可按一定週期監控開關狀態的變化,功耗更低。另外,通過設置為按電源系統分類的序列工作或所有開關統一序列工作,可實現低雜訊運行。

料號 | BD3375KV-CE2
狀態 | 可購買
封裝 | VQFP48C
單位數量 | 1500
最小包裝數量 | 1500
包裝形式 | Taping
RoHS | Yes
Functional Safety | FS supportive

規格:

Common Standard

AEC-Q100 (Automotive Grade)

Fully Functional Voltage(Min.)[V]

8.0

Fully Functional Voltage(Max.)[V]

26.0

VDDI Supply Voltage(Min.)[V]

3.1

VDDI Supply Voltage(Max.)[V]

5.25

Switch Input Number

22

Switch Input Voltage(Min.)[V]

-14.0

Switch Input Voltage(Max.)[V]

40.0

Wetting Current (Min)

1mA, 3mA, 5mA, 10mA, 15mA

Wetting Current Type

Pull up / Pull down

Intermittent Monitoring Current [µA]

100

Control Interface

SPI

Clock Frequency (Max)[MHz]

4.4

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

功能:

  • AEC-Q100 Qualified (Grade 1)
  • Operational Voltage Range: 3.9V to 8V
  • Uses 3.3/5.0V SPI protocol in communicating with the MCU
  • Serial communication error checking through 8bit-CRC
  • Thermal Shutdown Protection (TSD)
  • Power on Reset (POR)
  • Selectable source/sink current levels through register settings
  • Wetting current timer capability
  • 8 source or sink input terminals
  • 14 source input terminals
  • Separable Power Supply
    VPUA: 16ch (INA&INZ), VPUB: 6ch (INB)
  • Interrupt notification upon switch status change
  • 1 to 6 times matched LPF that eliminates input terminal noise
  • Low current consumption (Intermittent monitoring)
  • Status display of selected terminal at DMUX terminal