LTC2960IDC-1#TRMPBF

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Power management integrated circuits (PMICs) are widely used in a variety of applications. PMICs can be used to provide power management solutions for a single integrated circuit, or for large multi-chip systems. PMICs can provide a wide range of voltage and current sources, as well as a variety of supervisors, controllers, and other control functions.

The LTC2960IDC-1#TRMPBF is a power management integrated circuit (PMIC) supervisor from Linear Technology. It is a dual-channel, low-quiescent current, wide-input voltage range supervisor with a fixed two-threshold window. This device is designed for monitoring two separate power supplies and providing power-on reset (POR), power cycle reset, and power good status outputs.

The LTC2960IDC-1#TRMPBF is a pin-compatible upgrade of the LTC2960APS-2. The LTC2960IDC-1#TRMPBF provides higher reliability due to its improved diagnostic capabilities and voltage tracking accuracy over temperature. It also adds a wide temperature range of −40°C to +125°C.

Applications

The LTC2960IDC-1#TRMPBF supervisor is designed to monitor power supplies and provide power-on reset (POR), power cycle reset, and power good status outputs. It can be used in automotive, industrial, consumer, and other applications. Applications include automotive transceiver communications, radar, microwave, and optical transceiver systems, factory automation systems, motor drives, and consumer electronics.

The LTC2960IDC-1#TRMPBF offers over-temperature protection, undervoltage lockout, overvoltage lockout, and active current source for pull-up current. The POR output provides a valid logic-low output for system power-on reset. The PWRGND output provides an early warning of supply collapse to prevent system corruption. The supervisor provides an adjustable active-low power good output, turning off when the supply voltage drops below the threshold voltage.

Working Principle

The LTC2960IDC-1#TRMPBF is a dual-channel, low-quiescent current, wide-input voltage range supervisor. It is designed for monitoring two separate power supplies and providing power-on reset (POR), power cycle reset, and power good status outputs. The LTC2960IDC-1#TRMPBF has a fixed two-threshold window that provides active-low POR, active-low power good (PWRGND) and active-low power good (PWRGD) outputs. The supervisor monitors both supplies and disables the outputs if either voltage drops below the preset thresholds.

The low-power quiescent current consumption of the LTC2960IDC-1#TRMPBF helps reduce system standby power consumption. The supervisor also provides an over-voltage, under-voltage and over-temperature warning for system-level protection. The adjustable active-low power good output (PWRGD) turns off when the supply voltage drops below the threshold voltage, alerting the system to a fault condition.

The LTC2960IDC-1#TRMPBF has an active high reset (RESET) output, which is activated when either supply voltage drops below its preset threshold. The RESET output remains active as long as the supply voltage is below the threshold. The supervisor can be used to disable reset outputs, boost reset outputs and detect specific fault conditions.

Conclusion

The LTC2960IDC-1#TRMPBF is a PMIC supervisor designed to monitor dual power supplies and provide power-on-reset (POR), power cycle reset and power good status outputs. It has low quiescent current consumption, wide input voltage range and a fixed two-threshold window. The supervisor provides an over-voltage, under-voltage, and over-temperature warning to protect the system against faults. The adjustable active-low power good output (PWRGD) turns off when the supply voltage drops below the preset threshold voltage.

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