ADDC02828SAKV datasheet(2/16 Pages) AD

Nome de Peças	ADDC02828SAKV

Descrição Electrónicos	28 V/100 W DC/DC Converter with Integral EMI Filter

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Fabricante Electrônico	AD [Analog Devices]

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ADDC02828SA–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

Case

Test

ADDC02828SA

Parameter

Temp

Level

Conditions

Min

Typ

Max

Units

INPUT CHARACTERISTICS

Steady State Operating Input Voltage Range

1

Full

VI

IO = 0.36 A to 3.6 A

18

28

40

V

Abnormal Operating Input Voltage Range

(Per MIL-STD-704D)

1

Full

VI

IO = 0.36 A to 2.9 A

16

50

V

Input Overvoltage Shutdown

+25

°C

I

50

52.5

55

V

No Load Input Current

+25

°C

VI

85

100

mA

Disabled Input Current

+25

°CVI

1

5

mA

OUTPUT CHARACTERISTICS2, 3

Output Voltage (VO)

+25

°CI

IO = 0.36 A to 3.6 A, VIN = 18 V to 40 V dc

27.44 28.00

28.56 V

Full

VI

IO = 0.36 A to 3.6 A, VIN = 18 V to 40 V dc

26.88

29.12 V

Full

VI

IO = 0.36 A to 2.9 A, VIN = 16 V to 50 V dc

26.88

29.12 V

Line Regulation

+25

°CVI

IO = 3.6 A, VIN = 18 V to 40 V dc

10

60

mV

Load Regulation

+25

°CVI

VIN = 28 V dc, IO = 0.36 A to 3.6 A

15

45

mV

Output Ripple/Noise4

+25

°CI

IO = 3.6 A, 5 kHz – 2 MHz BW

50

100

mV p-p

Output Current (IO)

Full

VI

VIN = 18 V to 40 V dc

0.36

3.6

A

Output Overvoltage Protection

+25

°CV

IO = 3.6 A, Open Remote Sense Connection

125

% VO Nom

Output Current Limit

+25

°CV

VO = 90% VOUT Nom

130

% IO max

Output Short Circuit Current

+25

°CI

11

A

ISOLATION CHARACTERISTICS

Isolation Resistance

+25

°C

I

Input to Output or Any Pin to Case at 500 V dc

100

M

Ω

DYNAMIC CHARACTERISTICS

4

Maximum Output Voltage Deviation Due to

Step Change in Load

+25

°CI

IO = 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/µs

1.8

V

Response Time Due to Step Change in Load

+25

°CI

IO = 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/µs

150

µs

Time for VOUT to Return within 2% of Final Value

Soft Start Turn-On Time

5

+25

°CI

IO = 3.6 A, From Inhibit High to Status High

15

20

ms

THERMAL CHARACTERISTICS

Efficiency

+25

°CI

IO = 2.2 A

81

85

%

Full

VI

IO = 2.2 A

80

%

+25

°CI

IO = 3.6 A

81

85

%

Full

VI

IO = 3.6 A

80

%

Hottest Junction Temperature

6

+90

°CV

IO = 3.6 A

110

°C

CONTROL CHARACTERISTICS

Clock Frequency

Full

VI

IO = 0.36 A

0.85

0.99

MHz

ADJUST (Pin 3) V ADJ

+25

°C

I

5.5

5.6

5.7

V

STATUS (Pin 4)

VOH

+25

°CI

IOH = 400 µA

2.4

4.0

V

VOL

+25

°CI

IOL = 1 mA

0.15

0.7

V

VAUX (Pin 5)

VO (nom)

+25

°CI

IAUX = 5 mA, Load Current = 3.6 A

12.85 13.1

13.35 V

INHIBIT (Pin 6)

VIL

+25

°CI

0.5

V

IIL

+25

°CI

VIL = 0.5 V

1.2

mA

VI (Open Circuit)

+25

°CI

15

V

SYNC (Pin 7)

7

VIH

+25

°C

I

4.0

V

IIH

+25

°CI

VIH = 7.0 V

150

µA

ISHARE (Pin 8)

+25

°CI

IO = 3.6 A

2.70

2.80

2.90

V

TEMP (Pin 9)

+25

°C

V

3.90

V

NOTES

150 V dc upper limit rated for transient condition of up to 50 ms. 16 V dc lower limit rated for continuous operation during emergency condition. Steady state and

abnormal input voltage range require source impedance sufficient to ensure input stability at low line. See sections entitled System Instability Considerations and

Input Voltage Range.

2Measured at the remote sense points.

3Unit regulates output voltage to zero load.

4C

LOAD = 0.

5Output is fully loaded into a constant resistive load.

6Refer to Thermal Characteristics section for more information.

7Unit has internal pull-down; refer to section entitled Pin 7 (SYNC).

Specifications subject to change without notice.

REV. 0

–2–

(TC = +25 C, VIN = 28 V dc

0.5 V dc, unless otherwise noted; full temperature range is

–55 C to +90 C; all temperatures are case and TC is the temperature measured at the center of the package bottom.)

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