TOP242-250
PI-3652-031904
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
Scaling Factor:
TOP245P: 1.1
200
180
160
140
120
100
80
60
0.2
-250
40
-200
-150
-100
-50
0
IM (µA)
Figure 55a. Current Limit vs. MULTI-FUNCTION Pin Current (TOP245P only).
PI-3651-031804
1.1
1.0
0.9
0.8
Scaling Factor:
TOP245P: 1.1
200
180
160
140
120
100
80
Refer to MULTIFUNCTION (M) Pin
Operation section
0.7
0.6
Typical
0.5
0.4
Measured at 25 °C.
0.3
60
0.2
40
45K
0
5K
10K
15K
20K
25K
30K
35K
40K
External Current Limit Resistor RIL (Ω)
Figure 55b. Current Limit vs. External Current Limit Resistance (TOP245P only).
1.25
1.20
1.15
0 °C
1.10
1.05
1.00
.95
25 °C
.90
.85
.80
.75
.70
100 °C
0
5K
10K
15K
20K
25K
30K
35K
40K
45K
External Current Limit Resistor RIL (Ω)
Figure 55c. External Current Limit vs. External Current Limit Resistance at 0 °C, 25 °C and 100 °C Junction
Temperature (TOP245P only).
M
12/04
41
POWERINT [ Power Integrations ]
