UC1825A-DIE Texas instruments

UC1825A-DIE

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UC1825A-DIE

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Описание

The UC1825A-DIE PWM controller is an improved version of the standard UC1825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Startup supply current, typically 100 μA, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the startup current specification. In addition each output is capable of 2-A peak currents during transitions.

Rad-Tolerant: 30 kRad (Si) TID⁽¹⁾
Compatible With Voltage-Mode or Current-Mode Control Methods
Practical Operation at Switching Frequencies
50-ns Propagation Delay to Output
High-Current Dual Totem Pole Outputs
Trimmed Oscillator Discharge Current
Low 100-µA Startup Current
Pulse-by-Pulse Current Limiting Comparator
Latched Overcurrent Comparator With Full Cycle Restart

⁽¹⁾ Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

Die or wafer type	Tested Die
Rating	Space
Operating temperature range (°C)	25 to 25