LTC1041CN8#PBF

LTC1041 is a monolithic CMOS BANG-BANG controller manufactured using Linear Technology’s enhanced LTCMOS™ silicon gate process. BANG-BANG loops are characterized by turning the control element fully ON or fully OFF to regulate the average value of the parameter to be controlled. The SET POINT input determines the average control value and the DELTA input sets the dead band. The dead band is always 2 x DELTA and is centred around the SET POINT. Independent control of the SET POINT and dead band, with no interaction, is made possible by the unique sampling input structure of the device. An external RC connected to the OSC pin sets the sampling rate. At the start of each sample, internal power to the analogue section is switched on for 80µs. During this time, the analogue inputs are sampled and compared. After the comparison is complete, power is switched off. It is used in application such as temperature control (thermostats), motor speed control, battery charger, any ON-OFF control loop.

• Wide supply voltage range is 2.8V to 16V
• Wide input voltage range V+ to ground
• Two independent ground-referred control inputs
• TTL outputs with 5V supply
• Set point error is ±0.3mV typ at (V+ = 2.8V to 6V)
• Dead band error is ±0.6mV typ at (V+ = 2.8V to 6V)
• Input current is ±0.3nA typ at (TA = 25°C)
• Sampling frequency is 5Hz typ at (V+ = 5V, TA = 25°C)
• Operating temperature is -40°C to 85°C
• Package style is 8-lead PDIP

Notes

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