HV9123 Supertex, Inc., HV9123 Datasheet - Page 2

• Manufacturer Part Number: HV9123
• Description: Switchmode PWM Controller
• Manufacturer: Supertex, Inc.

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