HV9120/HV9123
Electrical Characteristics
(Unless otherwise specified, V
DD
= 10V, +V
IN
= 48V, Discharge = -V
IN
= 0V, R
BIAS
= 390KΩ, R
OSC
= 330KΩ,T
A
= 25°C.)
Symbol Parameters
Min
Typ
Max
Unit
Conditions
Reference
V
REF
Output Voltage
3.92
3.84
Z
OUT
I
SHORT
∆V
REF
Output Impedance
1
Short Circuit Current
Change in V
REF
with Temperature
1
15
4.00
4.00
30
125
0.25
4.08
4.16
45
250
KΩ
µA
mV/°C
V
REF
= -V
IN
T
A
= -55°C to 125°C
V
R
L
= 10MΩ
R
L
= 10MΩ,
T
A
= -55°C to 125°C
Oscillator
f
MAX
f
OSC
∆V
OSC
TC
OSC
Oscillator Frequency
Initial Accuracy
2
1.0
80
160
Voltage Stability
Temperature Coefficient
1
170
3.0
100
200
120
240
15
%
ppm/°C
MHz
KHz
R
OSC
= 0Ω
R
OSC
= 330KΩ
R
OSC
= 150KΩ
9.5V < V
DD
<13.5V
T
A
= -55°C to 125°C
PWM
D
MAX
Maximum Duty Cycle
1
HV9120
HV9123
Deadtime
1
D
MIN
Minimum Duty Cycle
Minimum Pulse Width
Before Pulse Drops Out
1
80
HV9123
49.0
95
49.4
97
225
0
125
49.6
99
nsec
%
nsec
%
Current Limit
V
lim
t
d
Maximum Input Signal
Delay to Output
1
1.0
1.2
80
1.4
150
V
ns
V
FB
= 0V
V
SENSE
= 1.5V, V
COMP
≤
2.0V
Error Amplifier
V
FB
I
IN
V
OS
A
VOL
GB
Z
OUT
I
SOURCE
I
SINK
PSRR
Feedback Voltage
Input Bias Current
Input Offset Voltage
Open Loop Voltage Gain
1
Unity Gain Bandwidth
1
Output Impedance
1
Output Source Current
Output Sink Current
Power Supply Rejection
1
-1.4
0.12
60
1.0
3.92
4.00
25
4.08
500
V
nA
V
FB
Shorted to Comp
V
FB
= 4.0V
nulled during trim
80
1.3
see fig. 1
-2.0
0.15
see fig. 2
dB
MHz
Ω
mA
mA
dB
V
FB
= 3.4V
V
FB
= 4.5V
Notes:
1. Guaranteed by design. Not subject to production test.
2. Stray C on OSC IN pin must be
≤5pF.
2
SUPERTEX [ Supertex, Inc ]
