DPA423 Power Integrations, Inc., DPA423 Datasheet - Page 21

• Manufacturer Part Number: DPA423
• Description: Highly Integrated DC-DC Converter Ics For Distributed Power Architecturesthe Dpa-switch ic Family Introduces a Highly Integratedsolution For DC-DC Conversion Applications in The 16-75 Vdcinput Range.dpa-switch Uses The Same Proven Topology as Topswit
• Manufacturer: Power Integrations, Inc.

Switching
Frequency
Duty Cycle (Prior
to Cycle Skipping)
Maximum Duty
Cycle
Control Current at
Start of Cycle
Skipping
External Bias
Current
Thermal Impedance: P or G Package:
............................................................................ 30 °C/W
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
(θ
(θ
(θ
(θ
JA
JA
JC
JC
) ...................... 70 °C/W
)
) ......................................... 40 °C/W
)
R Package:
(3)
(6)
......................................... 11 °C/W
........................................... 2 °C/W
DPA424 ................................. 3.5 A
DPA425 .................................... 7 A
DPA426 ................................. 9.6 A
Symbol
DC
DC
I
f
C(skip)
OSC
I
B
MAX
MIN
ABSOLUTE MAXIMUM RATINGS
T
T
T
SOURCE = 0 V
J
J
J
I
= 25 °C; f
= 25 °C; f
C
= 25 °C
(Unless Otherwise Specified)
= I
(1)
THERMAL IMPEDANCE
; 60 °C/W
CD1
Conditions
See Figure 32
OSC
OSC
Connected to CONTROL
Connected to SOURCE
= 400 kHz
= 400 kHz
(2)
(4)
(5)
;
FREQUENCY Pin
FREQUENCY Pin
T
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. inch (645 mm
5. Soldered to 3 sq. inch (1935 mm
6. Measured at the back surface of tab.
J
I
= -40 to 125 °C
I
L
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
= 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
(3)
(1, 4)
Min
............................................... 260 °C
375
282
3.6
4.4
71
52
32
2.5
2
2
2
), 2 oz. (610 g/m
), 2 oz. (610 g/m
2
), 2 oz. (610 g/m
Typ
10.0
11.5
2
400
300
7.2
8.2
4.8
5.7
), 2 oz. (610 g/m
75
62
42
2.8
3.5
(2)
4
............... -40 to 150 °C
DPA423-426
Max
10.0
12.0
14.0
425
317
9.0
3.5
4.4
6.0
7.1
79
71
57
A
6
2
= 25 °C.
2
) copper clad.
2
) copper clad.
) copper clad.
2
) copper clad.
Units
4/04
kHz
mA
mA
L
%
%
21