DAK-71A Power Integrations, DAK-71A Datasheet - Page 25

• Manufacturer Part Number: DAK-71A
• Description: KIT DESIGN ACCELERATOR DC-DC
• Manufacturer: Power Integrations
• Series: DPA-Switch®r

Specifications of DAK-71A

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Isolated
• Voltage - Output: 3.3V
• Current - Output: 2A
• Voltage - Input: 36 ~ 72V
• Regulator Topology: Flyback
• Frequency - Switching: 400kHz
• Board Type: Bare (Unpopulated) and Fully Populated
• Utilized Ic / Part: DPA423, DPA424, DPA425
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 596-1009

NOTES:
A.
B.
C.
D.
www.powerint.com
Supply Voltage Characteristics
DRAIN Supply Voltage
Shunt Regulator
Voltage
Shunt Regulator
Temperature Drift
CONTROL Supply/
Discharge Current
For specifi cations with negative values, a negative temperature coeffi cient corresponds to an increase in magnitude with increas-
ing temperature, and a positive temperature coeffi cient corresponds to a decrease in magnitude with increasing temperature.
For externally adjusted current limit values, please refer to Figure 35 (Current Limit vs. External Current Limit Resistance) in the
Typical Performance Characteristics section.
Breakdown voltage may be checked against minimum BV
exceeding minimum BV
It is possible to start up and operate DPA-Switch at DRAIN voltages well below 16 V. However, the CONTROL pin charging
current is reduced, which affects start-up time, auto-restart frequency, and auto-restart duty cycle. Refer to Figure 45, the
characteristic graph on CONTROL pin charge current (I
Parameter
DSS
Symbol
.
V
C(SHUNT)
I
I
CD1
CD2
MOSFET Enabled
SOURCE = 0 V; T
f
OSC
V
(Unless Otherwise Specifi ed)
Output
= 400 kHz
L
I
C
= 0 V;
Output MOSFET Disabled
V
= (I
L
= 0 V; f
C(skip)
I
C
See Figure 33
Conditions
See Note D
= (I
C
) vs. DRAIN voltage for low voltage operation characteristics.
+ I
C(skip)
DSS
OSC
B
)/2; T
J
specifi cation by ramping the DRAIN pin voltage up to but not
= 400 kHz
+ I
= -40 to 125 °C
B
J
)/2
= 25 °C
DPA422
DPA423
DPA424
DPA425
DPA426
Min
5.6
1.6
1.9
2.6
3.7
4.8
0.4
16
5.85
0.73
Typ
±50
2.0
2.3
3.0
4.3
5.4
DPA422-426
Max
6.0
2.4
2.7
3.4
4.8
1.2
6
PPM/°C
Units
Rev. S 12/07
mA
V
V
25