Linear Technology Corporation introduces the LTC4261, a negative high voltage Hot Swap™ controller. It features an onboard 10-bit ADC and I2C compatible interface, allowing sophisticated power monitoring by measuring card voltages and currents as well as recording past and present fault conditions. Information in the ADC's registers can be queried via the I2C bus and then used to determine if a card is actually using its allocated power, or operating abnormally. This advanced power monitoring, combined with a wide input voltage range of – 12 to – 100 V and Hot Swap capabilities, make the LTC4261 suited for high availability telecom/network equipment, such as AdvancedTCA systems. The active current limiting results in a controlled rise in voltage across the card capacitance and protects the backplane supply from voltage drops. The inrush and overcurrent limits, as well as the undervoltage/overvoltage thresholds and hysteresis are independently adjustable, giving maximum flexibility and accuracy to proprietary designs.
Linear Technology Corporation
Linear Technology Corporation
1630 McCarthy Blvd.
Milpitas, CA, 95035
