Datasheet

VIPer50/SP - VIPer50A/ASP
5/23
ELECTRICAL CHARACTERISTICS (continued)
OSCILLATOR SECTION
ERROR AMPLIFIER SECTION
PWM COMPARATOR SECTION
SHUTDOWN AND OVERTEMPERATURE SECTION
Symbol Parameter Test Conditions Min Typ Max Unit
F
SW
Oscillator Frequency
Total Variation
R
t
=8.2KΩ; C
t
=2.4nF
V
DD
=9 to 15V;
with R
t
± 1%; C
t
± 5%
(see fig. 6 and fig. 9)
90 100 110 kHz
V
OSCih
Oscillator Peak Voltage 7.1 V
V
OSCil
Oscillator Valley Voltage 3.7 V
Symbol Parameter Test Conditions Min Typ Max Unit
V
DDreg
V
DD
Regulation Point I
COMP
=0mA (see fig. 1) 12.6 13 13.4 V
∆V
DDreg
Total Variation T
j
=0 to 100°C 2 %
G
BW
Unity Gain Bandwidth
From Input =V
DD
to Output = V
COMP
COMP pin is open (see fig. 10)
150 kHz
A
VOL
Open Loop Voltage Gain COMP pin is open (see fig. 10) 45 52 dB
G
m
DC Transconductance V
COMP
=2.5V (see fig. 1) 1.1 1.5 1.9 mA/V
V
COMPLO
Output Low Level I
COMP
= -400µA; V
DD
=14V 0.2 V
V
COMPHI
Output High Level I
COMP
=400µA; V
DD
=12V 4.5 V
I
COMPLO
Output Low Current
Capability
V
COMP
=2.5V; V
DD
=14V -600 µA
I
COMPHI
Output High Current
Capability
V
COMP
=2.5V; V
DD
=12V 600 µA
Symbol Parameter Test Conditions Min Typ Max Unit
H
ID
∆V
COMP
/ ∆I
DPEAK
V
COMP
=1 to 3 V 1.422.6V/A
V
COMPoff
V
COMP
Offset I
DPEAK
=10mA 0.5 V
I
Dpeak
Peak Current Limitation V
DD
=12V; COMP pin open 1.5 2 2.7 A
t
d
Current Sense Delay to
Turn-Off
I
D
=0.5A 250 ns
t
b
Blanking Time 250 360 ns
t
on(min)
Minimum On Time 350 1200 ns
Symbol Parameter Test Conditions Min Typ Max Unit
V
COMPth
Restart Threshold (see fig. 4) 0.5 V
t
DISsu
Disable Set Up Time (see fig. 4) 1.7 5 µs
T
tsd
Thermal Shutdown
Temperature
(See fig. 8) 140 170 °C
T
hyst
Thermal Shutdown
Hysteresis
(See fig. 8) 40 °C