ADDC02812DA_15 datasheet(3/20 Pages) AD

Part #	ADDC02812DA

Description	28 V/100 W DC/DC Converters with Integral EMI Filter

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Manufacturer	AD [Analog Devices]

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OBSOLETE

Case

Test

ADDC02812DA

ADDC02815DA

Parameter

Temp

Level Conditions

Min

Typ

Max

Min

Typ

Max

Units

DYNAMIC CHARACTERISTICS

5

Output Voltage Deviation Due to Step

+25

°CI

IO = ± 2.08 A to ± 4.17 A

0.850

1.30

V

Change in Load (12 V)

or

±4.17 A to ±2.08 A

Output Voltage Deviation Due to Step

+25

°CI

IO = ± 1.67 A to ± 3.34 A

0.850

1.50

V

Change in Load (15 V)

or

±3.34 A to ±1.67 A

Response Time Due to Step

+25

°CI

IO = ± 2.08 A to ± 4.17 A

150

225

µs

Change in Load (12 V)

or

±4.17 A to ±2.08 A

di/dt = 0.5 A/

µs, Measured

to Within 2% of Final Value

Response Time Due to Step Change

+25

°CI

IO = ± 1.67 A to ± 3.34 A or

150

225

µs

in Load (15 V)

±3.34 A to ±1.67 A,

di/dt = 0.5 A/

µs, Measured

to Within 2% of Final Value

Soft Start Turn-On Time (12 V)

+25

°CI

IO = ± 4.17 A, from Inhibit

6

15

ms

High to Status High

Soft Start Turn-On Time (15 V)

+25

°CI

IO = ± 3.34 A, from Inhibit

6

15

ms

High to Status High

THERMAL CHARACTERISTICS

Efficiency (12 V)

+25

°CI

IO = ± 2.5 A

81

85

%

Full

VI

IO = ± 2.5 A

80

%

+25

°CI

IO = ± 4.17 A

81

85

%

Full

VI

IO = ± 4.17 A

80

%

Efficiency (15 V)

+25

°CI

IO = ± 2.0 A

81

85

%

Full

VI

IO = ± 2.0 A

80

%

+25

°CI

IO = ± 3.34 A

81

85

%

Full

VI

IO = ± 3.34 A

80

%

Hottest Junction Temperature

6 (12 V)

+90

°CV

IO = ± 4.17 A

110

°C

Hottest Junction Temperature6 (15 V)

+90

°CV

IO = ± 3.34 A

110

°C

CONTROL CHARACTERISTICS

Clock Frequency (12 V)

Full

VI

IO = ± 0.42 A

0.85

1.00

MHz

Clock Frequency (15 V)

Full

VI

IO = ± 0.34 A

0.85

1.00

MHz

Adjust (Pin 3) VADJ (12 V)

+25

°C I

4.7

4.8

4.9

V

Adjust (Pin 3) VADJ (15 V)

+25

°C I

5.9

6.0

6.1

V

Status (Pin 4)

VOH

+25

°CI

IOH = 400 µA

2.4

4.0

2.4

4.0

V

VOL

+25

°CI

IOL = 1 mA

0.15

0.7

0.15

0.7

V

VAUX (Pin 5)

VO (nom) (12 V)

+25

°CI

IAUX = 5 mA, Load

13.25

13.5

13.75

V

Current =

±4.17 A

VAUX (Pin 5)

VO (nom) (15 V)

+25

°CI

IAUX = 5 mA, Load

13.65

13.9

14.5

V

Current =

±3.34 A

Inhibit (Pin 6)

VIL

+25

°C I

0.5

V

IIL

+25

°CI

VIL = 0.5 V

1.2

mA

VI (Open Circuit)

+25

°C I

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) (12 V)

+25

°C I

Load Current =

±4.17 A

2.65

2.75

2.85

V

ISHARE (Pin 8) (15 V)

+25

°C I

Load Current =

±3.34 A

2.65

2.75

2.85

V

Temp (Pin 9)

+25

°C V

3.90

V

NOTES

1Military subgroups apply only to military qualified devices.

250 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 insure input stability at low line. See sections entitled System Instability Considerations and

Input Voltage Range.

3Measured at the remote sense points.

4Output characteristics tested with balanced loads on each output; however, unit operates with unbalanced loads up to 90%/10% split.

5C

LOAD = 0.

6Refer to section entitled Thermal Characteristics for more information.

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

Specifications subject to change without notice.

REV. 0

–3–

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