B

D

2.5mA

40mA

D

C

NPN

S

S

E

E

PNP

C

B

Application Information

1. Recommended Operating Conditions

The

resistor having 0 to 200

Ω is to be used.

Both the temperature coefficients for the transistor and the diodes are matched under the above conditions.

of the transistors is subject to the compensation. One PN junction diode in the NPN and five Schottky

barrier diodes in the PNP are built-in, and the total six diodes are operating as the temperature compensation.

The temperature coefficient of the total diodes (its variable value) becomes smaller with a larger forward

current (approximately – 0.2mV/

°C to 1mA), and the coefficient of the total transistors (its variable value)

also becomes smaller with a larger idling current (approximately – 0.1mV/

°C to 10mA), but the both variable

values are small.

Thus, the distortion of the temperature coefficient caused by the different current is small, so the thermal

runaway may not be occurred due to the changes of the recommended ratings; however, the actual operation

is to be confirmed by using an experimental equipment or board.

External variable

resistor (VR)

(0 to 200

Ω)