dpa422 Power Integrations, Inc., dpa422 Datasheet - Page 21

• Manufacturer Part Number: dpa422
• Description: Highly Integrated Dc-dc Converter Ics For Power Over Ethernet & Telecom Applications
• Manufacturer: Power Integrations, Inc.

www.powerint.com
Absolute Maximum Ratings
DRAIN Voltage .....................................................-0.3 V to 220 V
DRAIN Peak Current:
CONTROL Voltage ................................................ -0.3 V to 9 V
CONTROL Current .........................................................100 mA
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
Theraml Impedance
Thermal Impedance: P or G Package:
Switching
Frequency
Duty Cycle (Prior to
Cycle Skipping)
Maximum Duty Cycle
Control Current at Start
of Cycle Skipping
External Bias
Current
Control Functions
Parameter
(θ
(θ
(θ
(θ
(θ
JA
JC
JA
JA
JC
) ........................... 70 °C/W
) .................................................40 °C/W
) .................................................30 °C/W
)
)
(3)
R Package:
(6)
............................................11 °C/W
................................................2 °C/W
DPA426....................................... 9.6 A
DPA422......................................1.31 A
DPA423......................................1.75 A
DPA424....................................... 3.5 A
DPA425...........................................7 A
Symbol
DC
(1,5)
DC
I
C(skip)
f
OSC
I
B
MAX
MIN
T
J
T
T
SOURCE = 0 V; T
I
C
J
J
= 25 °C
= 25 °C; f
= 25 °C; f
= I
(Unless Otherwise Specifi ed)
(1)
CD1
; 60 °C/W
See Figure 33
OSC
OSC
Conditions
Connected to CONTROL
Connected to SOURCE
= 400 kHz
= 400 kHz
(2)
FREQUENCY Pin
FREQUENCY Pin
(4)
(5)
J
= -40 to 125 °C
I
I
L
L
Storage Temperature-65 °C to 150 °C
Operating Junction Temperature
Lead Temperature
Notes:
1. All voltages referenced to SOURCE, T
2. Normally limited by internal circuitry.
3. 1/16” from case for 5 seconds.
4. Maximum ratings specifi ed may be applied, one at a time,
Notes:
1. Soldered to 0.36 sq. in. (232 mm
2. Soldered to 1 sq. in. (645 mm
3. Measured on pin 7 (SOURCE) close to plastic interface.
4. Soldered to 1 sq. in. (645 mm
5. Soldered to 3 sq. in. (1935 mm
6. Measured at the back surface of tab.
V
= 115 μA
= 80 μA
L
= 0 V
without causing permanent damage to the product.
Exposure to Absolute Maximum Rating conditions for
extended periods of time may affect product reliability.
DPA422
DPA423
DPA424
DPA425
DPA426
DPA422
DPA423
DPA424
DPA425
DPA426
(3)
....................................................... 260 °C
Min
375
282
1.8
2.5
3.6
4.4
71
52
32
2
(2)
2
2
2
), 2 oz. (610 g/m
), 2 oz. (610 g/m
), 2 oz. (610 g/m
.................... -40 °C to 150 °C
2
10.0
11.5
), 2 oz. (610 g/m
Typ
400
300
6.3
7.2
8.2
2.5
2.8
3.5
4.8
5.7
75
62
42
DPA422-426
4
A
= 25 °C.
Max
10.0
12.0
14.0
425
317
8.0
9.0
3.1
3.5
4.4
6.0
7.1
79
71
57
6
2
2
2
) copper clad.
) copper clad.
2
) copper clad.
) copper clad.
Units
Rev. S 12/07
kHz
mA
mA
%
%
21