DPA422-426
Absolute Maximum Ratings(1,5)
DRAIN Voltage .....................................................-0.3 V to 220 V Storage Temperature-65 °C to 150 °C
DRAIN Peak Current:
DPA422......................................1.31 A Operating Junction Temperature(2)....................-40 °C to 150 °C
DPA423......................................1.75 A Lead Temperature(3) ....................................................... 260 °C
DPA424....................................... 3.5 A Notes:
DPA425...........................................7 A 1. All voltages referenced to SOURCE, TA = 25 °C.
DPA426....................................... 9.6 A 2. Normally limited by internal circuitry.
CONTROL Voltage ................................................ -0.3 V to 9 V 3. 1/16” from case for 5 seconds.
CONTROL Current .........................................................100 mA 4. Maximum ratings specified may be applied, one at a time,
LINE SENSE Pin Voltage ...................................... -0.3 V to 9 V
EXTERNAL CURRENT LIMIT Pin Voltage ........ -0.3 V to 9 V
FREQUENCY Pin Voltage ....................................... -0.3 V to 9 V
without causing permanent damage to the product.
Exposure to Absolute Maximum Rating conditions for
extended periods of time may affect product reliability.
Thermal Resistance
Thermal Resistance: P or G Package:
(qJA) ........................... 70 °C/W(1); 60 °C/W(2)
(q )(3) ............................................11 °C/W
JC R Package:
Notes:
1. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (610 g/m2) copper clad.
2. Soldered to 1 sq. in. (645 mm2), 2 oz. (610 g/m2) copper clad.
3. Measured on pin 7 (SOURCE) close to plastic interface.
4. Soldered to 1 sq. in. (645 mm2), 2 oz. (610 g/m2) copper clad.
5. Soldered to 3 sq. in. (1935 mm2), 2 oz. (610 g/m2) copper clad.
6. Measured at the back surface of tab.
(qJA).................................................40 °C/W(4)
(qJA).................................................30 °C/W(5)
(qJC)(6) ................................................2 °C/W
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
See Figure 33
Parameter
Symbol
Min
Typ
Max
Units
(Unless Otherwise Specified)
Control Functions
FREQUENCY Pin
Connected to SOURCE
375
282
400
300
4
425
317
6
Switching
Frequency
fOSC
TJ = 25 °C
kHz
FREQUENCY Pin
Connected to CONTROL
Duty Cycle (Prior to
Cycle Skipping)
DCMIN
DCMAX
%
%
VL = 0 V
71
52
32
75
62
79
71
Maximum Duty Cycle
IC = ICD1
IL = 80 µA
IL = 115 µA
42
57
DPA422
6.3
7.2
8.2
10.0
11.5
2.5
2.8
3.5
4.8
5.7
8.0
9.0
10.0
12.0
14.0
3.1
3.5
4.4
6.0
7.1
DPA423
DPA424
DPA425
DPA426
DPA422
DPA423
DPA424
DPA425
DPA426
Control Current at
Start of Cycle Skipping
IC(SKIP)
TJ = 25 °C; fOSC = 400 kHz
mA
mA
1.8
2
External Bias
Current
IB
TJ = 25 °C; fOSC = 400 kHz
2.5
3.6
4.4
21
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Rev. T 12/12
POWERINT [ Power Integrations ]
