Typical Performance Characteristics

To generate these curves the LM45 was mounted to a printed circuit board as shown in

Figure 3

Junction to Air

Thermal Resistance

Thermal Time Constant

with Heat Sink (

Figure 3 )

Thermal Response in Still Air

with Heat Sink

in Stirred Oil Bath

Thermal Response

vs Temperature

Start-Up Voltage

(In Circuit of

Figure 1 )

vs Temperature

Quiescent Current

(In Circuit of

Figure 2 )

vs Temperature

Quiescent Current

(Guaranteed)

Accuracy vs Temperature

Noise Voltage

vs Supply Current

Supply Voltage

Start-Up Response

TLH11754 – 23

FIGURE 3 Printed Circuit Board Used

for Heat Sink to Generate All Curves

Square Printed Circuit Board

with 2 oz Foil or Similar

TLH11754 – 5

3