VIPER100BSP Ver la hoja de datos (PDF) - STMicroelectronics
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VIPER100BSP Datasheet PDF : 20 Pages
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VIPER100B/BSP
ELECTRICAL CHARACTERISTICS (continued)
OSCILLATOR SECTION
S ymb ol
FSW
V OSC ih
VOSCi l
Parameter
Oscillator Frequency
Total Variation
Oscillator Peak Voltage
Oscillator Valley Voltage
Test Conditions
RT = 8.2 KΩ
CT =2.4 nF
VDD = 9 to15 V
with RT ± 1%
CT ± 5%
(see fig. 6 and fig. 9)
Min.
90
Typ .
100
Max.
110
Un it
KHz
7.1
V
3.7
V
ERROR AMPLIFIER SECTION
S ymb ol
VDDr e
∆VDDreg
GBW
P a ra m et er
Vg Regulation Point
Total Variation
Unity Gain Bandwidth
A VOL
Gm
V COMPL O
V C OM PHI
ICOMPLO
I CO MP HI
Open Loop Voltage
Gain
DC Transconductance
Output Low Level
Output High Level
Output Low Current
Capability
Output High Current
Capability
Test Conditions
ICOMP = 0 mA (see fig.1)
TJ = 0 to 100 oC
From Input = VDD t o Out put = VCOMP
CO MP pin is open (see fig. 10)
CO MP pin is open (see fig. 10)
VCOMP = 2.5 V (see fig. 1)
ICOMP = -400 µA
VDD = 14 V
ICOMP = 400 µA
VDD = 12 V
VCOMP = 2.5 V
VDD = 14 V
VCOMP = 2.5 V
VDD = 12 V
Min.
12.6
45
1.1
Typ .
13
2
150
52
1.5
0.2
4.5
-600
600
Max.
13.4
Unit
V
%
KHz
dB
1.9 mA/V
V
V
µA
µA
PWM COMPARATOR SECTION
S ymb ol
HID
VCOMPo f f
IDpeak
td
tb
ton( mi n)
P a ra m et er
Test Conditions
∆VCOMP /∆IDpea k
VCOMP = 1 t o 3 V
VCOMP offset
IDpeak = 10 mA
Peak Current Limitation VDD = 12 V COMP pin open
Current Sense Delay
to turn-off
ID = 1 A
Blanking Time
Minimum on Time
Min.
0.35
6
Typ .
0.5
0.5
8
250
Max.
0.65
11
Unit
V/A
V
A
ns
250 360
ns
350
ns
SHUTDOWN AND OVERTEMPERATURE SECTION
S ymb ol
V COMP th
tDI Ss u
Ttsd
Thyst
P a ra m et er
Restart threshold
Disable Set Up Time
Thermal Shutdown
Temperature
Thermal Shutdown
Hy s t e r es is
Test Conditions
(see fig. 4)
(see fig. 4)
(see fig. 8)
(see fig. 8)
Min.
140
Typ .
0.5
1.7
170
Max.
5
Unit
V
µs
oC
40
oC
5/20
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