新产品 (1)

概览

优势和特点

  • High Voltage Dual SPST, Current Sharing Allowed
  • 5% Accurate Analog Current Monitor Outputs
  • Adjustable Circuit Breaker Thresholds to 1.2A
  • Filtered (50μs) Primary OC Threshold
  • Fast (2μs) Secondary OC Threshold
  • 75mΩ Integrated Switches
  • Automatic Inrush Control
  • Short-Circuit Protection
  • Precision Enable Inputs
  • Open-Drain, Ready Status Outputs
  • 16-Lead 3mm × 3mm LQFN and 12-Lead (Skipped Lead) 3mm × 4mm LQFN

产品详情

The LTC4249 dual electronic circuit breaker (ECB) provides independent overcurrent protection to a pair of loads. Each channel has a precision enable input, current monitor output and ready status output. A single resistor configures the ECB threshold. If either channel detects an overcurrent condition, the corresponding breaker disconnects the input from the load.

After a circuit breaker event, the open-drain RDY status output pulls low and the ECB latches off. Toggling the enable input turns the ECB back on after a 1 second cooloff period. The cool-off timer, overtemperature sensor, short-circuit detector and inrush controller prevent operation outside the safe operating area of the circuit breakers.

Precision enable inputs, ready outputs and analog current monitor outputs permit voltage sequencing and closed loop bias current control applications. ECB channels may be paralleled as needed. Load isolation and reverse current detection applications are also possible.

APPLICATIONS

  • 5G mMIMO PA Array Protection
  • Industrial Safety
  • Condition Monitoring
  • Relay Replacement
  • Load Switching

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所示报价为单片价格。所列的美国报价单仅供预算参考,指美元报价(每片美国离岸价),如有修改恕不另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。