NCV33163 Datasheet, PDF (4/16 Pages) ON Semiconductor – 2.5 A, Step-Up/Down/ Inverting Switching Regulators

NCV33163
100 _{VCC = 15 V}
T_A = 25°C
1) t_on, R_DT = ∞
2) t_on, R_DT = 20 k
3) t_on, t_off, R_DT = 10 k
1
4) t_off, R_DT = 20 k
5) t_off, R_DT = ∞
10
2
3
4
5
1.0
0.1
1.0
10
C_T, OSCILLATOR TIMING CAPACITOR (nF)
Figure 2. Output Switch On-Off Time
versus Oscillator Timing Capacitor
2.0
V_CC = 15 V
C_T = 620 pF
0
− 2.0
− 4.0
− 6.0
− 55
− 25
0
25
50
75
T_A, AMBIENT TEMPERATURE (°C)
100 125
Figure 3. Oscillator Frequency Change
versus Temperature
140
V_CC = 15 V
V_FB1 = 5.05 V
120
100
80
60
− 55
− 25
0
25
50
75 100 125
T_A, AMBIENT TEMPERATURE (°C)
Figure 4. Feedback Comparator 1 Input Bias
Current versus Temperature
1300
1280 ^{VCC = 15 V}
V_th Max = 1275 mV
1260
V_th Typ = 1250 mV
1240
V_th Min = 1225 mV
1220
125
1200
− 55
− 25
0
25 50 75 100
T_A, AMBIENT TEMPERATURE (°C)
Figure 5. Feedback Comparator 2 Threshold
Voltage versus Temperature
2.8
V_CC = 15 V
Pin 16 = V_CC + 5.0 V
2.4
2.0
1.6
1.2
− 55
− 25
0
25
50
75 100 125
T_A, AMBIENT TEMPERATURE (°C)
Figure 6. Bootstrap Input Current
Source versus Temperature
7.6
I_Z = 25 mA
7.4
7.2
7.0
125
6.8
− 55
− 25
0
25
50
75 100
T_A, AMBIENT TEMPERATURE (°C)
Figure 7. Bootstrap Input Zener Clamp
Voltage versus Temperature
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