VIPER50/SP STMICROELECTRONICS [STMicroelectronics], VIPER50/SP Datasheet - Page 5

• Manufacturer Part Number: VIPER50/SP
• Description: SMPS PRIMARY I.C.
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

VIPer50/SP - VIPer50A/ASP
ELECTRICAL CHARACTERISTICS (continued)
OSCILLATOR SECTION
ERROR AMPLIFIER SECTION
PWM COMPARATOR SECTION
SHUTDOWN AND OVERTEMPERATURE SECTION
5/23
V
V
V
I
V
Symbol
Symbol
I
Symbol
Symbol
COMPLO
V
V
COMPHI
t
V
COMPLO
COMPoff
COMPHI
I
on(min)
COMPth
t
V
A
G
Dpeak
T
F
DISsu
OSCih
DDreg
T
H
OSCil
G
DDreg
VOL
hyst
t
t
SW
BW
tsd
d
b
ID
m
Oscillator Frequency
Total Variation
Oscillator Peak Voltage
Oscillator Valley Voltage
V
Total Variation
Unity Gain Bandwidth
Open Loop Voltage Gain
DC Transconductance
Output Low Level
Output High Level
Output Low Current
Capability
Output High Current
Capability
V
Peak Current Limitation
Current Sense Delay to
Turn-Off
Blanking Time
Minimum On Time
Restart Threshold
Disable Set Up Time
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
V
DD
COMP
COMP
Regulation Point
Parameter
Parameter
Parameter
Parameter
Offset
/ I
DPEAK
R
V
with R
(see fig. 6 and fig. 9)
I
T
From Input =V
COMP pin is open
COMP pin is open
V
I
I
V
V
V
I
V
I
(see fig. 4)
(see fig. 4)
(See fig. 8)
(See fig. 8)
COMP
COMP
COMP
DPEAK
D
j
t
DD
COMP
COMP
COMP
COMP
DD
=0 to 100°C
=0.5A
=8.2K ; C
=9 to 15V;
=12V; COMP pin open
=0mA
= -400µA; V
=400µA; V
t
± 1%;
=10mA
=2.5V
=2.5V; V
=2.5V; V
=1 to 3 V
Test Conditions
Test Conditions
Test Conditions
Test Conditions
t
=2.4nF
C
DD
DD
DD
t
± 5%
DD
to Output = V
DD
=14V
=12V
=12V
=14V
(see fig. 10)
(see fig. 10)
(see fig. 1)
(see fig. 1)
COMP
12.6
Min
Min
Min
Min
140
1.1
1.4
1.5
90
45
-600
Typ
Typ
Typ
Typ
100
150
600
250
250
350
170
7.1
3.7
1.5
0.2
4.5
0.5
0.5
1.7
13
52
40
2
2
2
1200
Max
Max
13.4
Max
Max
110
360
1.9
2.6
2.7
5
mA/V
Unit
Unit
Unit
Unit
kHz
kHz
V/A
dB
µA
µA
°C
°C
ns
ns
ns
µs
V
V
V
V
V
V
A
V