DPA425 View Datasheet(PDF) - Power Integrations, Inc
Part Name
Description
MFG CO.
DPA425
Power Integrations, Inc
'DPA425' PDF : 34 Pages View PDF
DPA422-426
Parameter
Symbol
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
See Figure 33
(Unless Otherwise Specified)
Line-Sense (L) and External Current Limit (X) Inputs (cont.)
LINE-SENSE Pin
Short-Circuit Current
IL(SC)
X Pin Short-Circuit
Current
IX(SC)
VX = 0 V
VL = VC
VL = 0 V
Normal Mode
Remote OFF Using L Pin
Line Pin Voltage
(Positive Current)
VL
X Pin Voltage
(Negative Current)
VX
Maximum Duty Cycle
Reduction Onset
IL(DC)
Threshold Current
IL = IUV
IL = IOV
IX = -50 mA
IX = -150 mA
TJ = 25 °C
Remote OFF DRAIN
Supply Current
LINE-SENSE Pin
Voltage Turn-On
Threshold in
Synchronous Mode
ID(RMT)
VL(TH)
VD = 40 V
VX = 0 V
VL = Floating
VL = VC
On-Time Pulse Width
for Synchronization
tON(SYNC)
Off-Time Pulse Width
for Synchronization
Synchronous
Turn-On Delay
Frequency (F) Input
FREQUENCY Pin
Threshold Voltage
tOFF(SYNC)
tDELAY(SYNC)
VF
FREQUENCY Pin Input
Current
IF
FREQUENCY Pin
Delay Time
Circuit Protection
tDELAY(VF)
fOSC = 400 kHz
fOSC = 300 kHz
From Synchronous On to Drain Turn-On
VF = 0 V
VF = VC
DPA422 di/dt = 225 mA/ms
Self Protection
Current Limit
(See Note B)
DPA423 di/dt = 300 mA/ms
ILIMIT
TJ = 25 °C DPA424 di/dt = 600 mA/ms
DPA425 di/dt = 1.25 A/ms
DPA426 di/dt = 1.75 A/ms
Min
175
-230
-270
-105
2.05
2.1
0.6
120
120
0.25
1.1
0.86
1.16
2.32
4.65
6.50
Typ
240
-170
-230
-85
2.35
2.5
1.35
1.25
55
0.6
0.9
1
-0.38
17
0.935
1.25
2.50
5.00
7.00
Max
380
-185
-65
2.6
2.9
1.1
1.5
1.4
2250
3080
7.7
250
4
120
2
1.0
1.34
2.68
5.35
7.50
Units
mA
mA
V
mA
mA
V
ns
ms
ns
V
mA
ms
A
www.powerint.com
23
Rev. T 12/12
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