HV9120 Supertex, Inc., HV9120 Datasheet - Page 5

• Manufacturer Part Number: HV9120
• Description: High-voltage Current-mode Pwm Controller
• Manufacturer: Supertex, Inc.

Typical Performance Curves
Fig. 1
Fig. 2
Fig. 3
100
-10
-20
-30
-40
-50
-60
-70
-80
10
10
10
10
10
10
10
.1
0
1
1
6
5
4
3
2
100
110
10
5
PSRR — Error Amplifier and Reference
Error Amplifier Output Impedance (Z
V
DD
100
= 10V
1K
Bias Resistance (Ω)
Frequency (Hz)
Frequency (Hz)
10K
V
1K
DD
= 12V
10
6
100K
10K
100K
1M
0
)
10M
10
1M
7
5
Fig. 4
Fig. 5
Fig. 6
100k
10k
-10
10
10
10
1M
80
70
60
50
40
30
20
10
0
10k
100
4
3
2
10
-1
10
R
0
Output Switching Frequency
DISCHARGE
1K
vs. Oscillator Resistance
Open Loop Gain/Phase
10
1
Frequency (Hz)
R
Error Amplifier
HV9120
R
DISCHARGE
10
OSC
10K
vs. t
2
100 k
(Ω)
OFF
10
R
R
3
(9123 only)
(Ω)
100K
OSC
OSC
= 100K
= 1K
10
HV9123
R
4
OSC
HV9120/HV9123
= 10K
10
1M
5
1M
10
6
-120
-180
180
120
-60
60
0