Regulator ICs
Switching regulator for electronic tuning
BA6161N / BA6161F
The BA6161N and BA6161F are switching regulat...
Regulator ICs
Switching
regulator for electronic tuning
BA6161N / BA6161F
The BA6161N and BA6161F are switching
regulators that contain a temperature compensation circuit. They can be used for electronic tuning DC-DC converters. FApplications Electronic tuners in televisions and other electronic equipment that requires high voltage (30X45V). FFeatures 1) Output changes are small against input voltage variations. 2) Temperature compensation circuit provides stable output. FBlock diagram
3) Reduced number of attached parts.
FPin descriptions
261
Regulator ICs
FAbsolute maximum ratings (Ta = 25_C)
BA6161N / BA6161F
FElectrical characteristics (unless otherwise noted, Ta = 25_C and Vin = 9.0V)
FMeasurement circuit
262
Regulator ICs
FCircuit operation A zener diode on the feedback pin provides reference voltage and compensates for temperature changes. Feedback current is fed from the zener diode to the oscillator.
BA6161N / BA6161F
Blocking oscillation is provided by connecting the external coil L between the oscillator drive pin and the VIN pin. The potential at the oscillator drive pin can be raised by using this oscillation. The output voltage is constant because the feedback current is always supplied to the oscillation circuit.
FApplication example
FOperation notes (1) When an output voltage greater than the reference output voltage (33.3V) is required, use a variable resistor (Murata RVG6P02-104M or equivalent product) with good temperature characteristics as s...