TOP242-250
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
-250
-200
-150
-100
IM (µA)
Figure 56a. Current Limit vs. MULTI-FUNCTION Pin Current (TOP246P only).
PI-3724-012704
Scaling Factor:
TOP246P: 1.35
200
180
160
140
120
100
80
60
40
-50
0
1.1
PI-3725-031804
Scaling Factor:
1.0
TOP246P: 1.35
200
0.9
180
0.8
160
0.7
Refer to MULTIFUNCTION (M) Pin
Operation section
140
0.6
120
0.5
Typical
100
0.4
80
0.3 Measured at 25 °C.
60
0.2
0
40
5K
10K
15K
20K
25K
30K
35K
40K
45K
External Current Limit Resistor RIL (Ω)
Figure 56b. Current Limit vs. External Current Limit Resistance (TOP246P only).
1.25
1.20
1.15
0 °C
1.10
1.05
1.00
.95
.90
25 °C
.85
.80
100 °C
.75
.70
0
5K
10K
15K
20K
25K
30K
35K
40K
45K
External Current Limit Resistor RIL (Ω)
Figure 56c. External Current Limit vs. External Current Limit Resistance at 0 °C, 25 °C and 100 °C Junction
Temperature (TOP246P only).
42 M
12/04