DPA424 Power Integrations, Inc., DPA424 Datasheet - Page 20

• Manufacturer Part Number: DPA424
• Description: Highly Integrated DC-DC Converter Ics For Distributed Power Architectures
• Manufacturer: Power Integrations, Inc.

20
Switching
Frequency
Duty Cycle (Prior
to Cycle Skipping)
Maximum Duty
Cycle
Control Current at
Start of Cycle
Skipping
External Bias
Current
Softstart Time
Thermal Impedance: R Package (θ
........................................................................... 30 °C/W
DPA423-426
CONTROL FUNCTIONS
DRAIN Voltage ............................................ -0.3 to 220 V
DRAIN Peak Current: DPA423 ............................... 1.75 A
CONTROL Voltage .......................................... -0.3 to 9 V
CONTROL Current ............................................... 100 mA
LINE SENSE Pin Voltage ................................ -0.3 to 9 V
EXTERNAL CURRENT LIMIT Pin Voltage .. -0.3 to 9 V
FREQUENCY Pin Voltage ............................... -0.3 to 9 V
Parameter
J
5/03
DPA424 ................................. 3.5 A
DPA425 .................................... 7 A
DPA426 ................................. 9.6 A
Symbol
DC
DC
I
f
C(skip)
t
OSC
SOFT
I
B
MAX
MIN
(θ
JC
JA
)
) ............... 40 °C/W
ABSOLUTE MAXIMUM RATINGS
(3)
................. 2 °C/W
T
T
T
SOURCE = 0 V
J
J
J
I
= 25 °C; f
= 25 °C; f
C
= 25 °C
(Unless Otherwise Specified)
= I
THERMAL IMPEDANCE
T
CD1
J
= 25 °C; DC
Conditions
See Figure 30
OSC
OSC
Connected to CONTROL
Connected to SOURCE
= 400 kHz
= 400 kHz
(1)
(2)
;
FREQUENCY Pin
FREQUENCY Pin
T
Notes:
1. Soldered to 1 sq. inch (645 mm
2. Soldered to 3 sq. inch (1935 mm
3. Measured at the back surface of tab.
J
I
= -40 to 125 °C
I
L
MIN
L
V
Storage Temperature ..................................... -65 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 specified may be applied, one at a time,
= 115 µA
= 80 µA
L
to DC
= 0 V
without causing permanent damage to the product.
Exposure to Absolute Maximum Rating conditions for
extended periods of time may affect product reliability.
DPA423
DPA424
DPA425
DPA426
DPA423
DPA424
DPA425
DPA426
MAX
(3)
(1, 4)
Min
............................................... 260 °C
375
282
3.6
4.4
71
52
32
2.5
2
2
), 2 oz. (610 gm/m
2
), 2 oz. (610 gm/m
Typ
10.0
11.5
400
300
7.2
8.2
4.8
5.7
75
62
42
2.8
3.5
(2)
4
5
............... -40 to 150 °C
Max
10.0
12.0
14.0
425
317
9.0
3.5
4.4
6.0
7.1
7.2
79
71
57
A
6
= 25 °C.
2
) copper clad.
2
) copper clad.
Units
kHz
mA
mA
ms
%
%