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VIPER31SP Datasheet(PDF) 4 Page - STMicroelectronics

Part # VIPER31SP
Description  BATTERY CHARGER PRIMARY I.C.
PDF  16 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VIPER31SP Datasheet(HTML) 4 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (TJ =25
oC, VCC = 12 V, unless otherwise specified)
POWER SECTION
Symb ol
Parameter
Test Cond ition s
Mi n.
Typ .
Max.
Un it
BVDSS
Drain-Source Voltage
ID =1 mA
VCOMP = 0 V
600
V
IDSS
Of f-St ate Drain Current VDS =500 V
VCOMP =0 V
1
mA
RDS(on)
St atic Drain Source on
Resistance
ID =0.3 A
VSENSE =0 V
TJ =25
oC
TJ = 100
oC
6.5
10
Ω
Ω
tf
Fall Time
ID = 0.3 A
Vin = 300 V (1)
(see f ig. 1)
250
ns
tr
Rise Time
ID =0.3 A
Vin = 300 V (1)
(see f ig. 1)
TBD
ns
COSS
Output Capacit ance
VDS =25 V
TBD
pF
(1) On Inductive Load, Clamped.
SUPPLY SECTION
Symb ol
Parameter
Test Cond ition s
Mi n.
Typ .
Max.
Un it
ICCch
St art-up Charging
Current
VDD =0 to VDDon
VDS = 250 V
(see f ig. 2)
-1. 5
mA
ICC0
Operating Supply
Current
FSW =0 KHz
(see f ig. 2)
10
mA
ICC1
Operating Supply
Current
FSW =100 KHz
TBD
mA
ICC2
Operating Supply
Current
FSW =200 KHz
TBD
mA
VDDo ff
Undervoltage
Shutdown
(see f ig. 2)
6
V
VDDo n
Undervoltage Reset
(see f ig. 2)
8
V
VDDhyst
Hysteresis St art -up
(see f ig. 2)
TBD
2
V
VDDreg
Output Voltage
(see f ig. 2)
TBD
T BD
V
VDO
Drop O ut Volt age
VCC =9 V
IDD =T BD mA
(see f ig. 2)
TBD
mV
IDDsc
Short Circuit Current
VDD =0 V
T BD
mA
OSCILLATOR SECTION
Symb ol
Parameter
Test Cond ition s
Mi n.
Typ .
Max.
Un it
FSW1
Oscillat or Frequency
Initial Accuracy
RT =8.2 K
Ω
CT = 3300 pF
TJ =25
oC(see fig.3)
TBD
50
T BD
KHz
FSW2
Oscillat or Frequency
Total Variation
RT =8.2 K
Ω
CT = 3300 pF
VDD =7 to10 V
TBD
50
T BD
KHz
VOSC HI
Oscillat or Peak Voltage (1)
6.2
V
VOSC LO
Oscillat or Valley
Voltage
(1)
2.5
V
(1) The peak and valley voltages are used internally by the voltage mode PWM. The sawtooth generated by the oscillator is compared to
the COMP pin voltage to limit the duty cycle of the power mosfet switch. See block diagram on page 1.
VIPer31SP
4/16



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