ALQ15AF48 [ASTEC]

Industry Standard  Brick: 36V-75V Input / 60W Output Power; 行业标准砖： 36V - 75V输入/ 60W输出功率


型号：	ALQ15AF48
厂家：	Astec America, Inc
描述：	Industry Standard  Brick: 36V-75V Input / 60W Output Power 行业标准砖： 36V - 75V输入/ 60W输出功率
文件：	总19页 (文件大小：1772K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

ALQ15 Dual Output Open-Frame DC-DC Converter Module

Industry Standard ¼ Brick: 36V-75V Input / 60W Output Power

The ALQ15 series is Astec's latest dual output; high-density converter offering that comes in an industry standard ¼ brick

open-frame package. With its independently controlled output rails, the module effectively minimizes cross regulation, which

has been an issue to most dual converters available in the market. The ALQ15 series has been designed to deliver 60W of

clean, well-regulated, low noise DC power for today's demanding loads at respectable efficiency levels: 3.3V-2.5V

combination @ 87.5% (60W output power). Output combinations currently available are 5.0V/3.3V - 3.3V/2.5V - 3.3V/1.8V -

2.5V/1.5V, with each output rail able to deliver 15A max (5V@12A). The module comes with standard feature sets such as

output enable with positive or negative options; output voltage-adjust; over current, over voltage and over temperature

protection. In addition, it is also being offered at both 5mm (std) and 3.7mm pin lengths.

Electrical Parameters

Input

Input Range

Input Surge

Efficiency

36-75 VDC

100V / 100ms

5.0V/3.3V @ 89.5% (Typ at 60W)

3.3V/2.5V @ 87.7%

3.3V/1.8V @ 86.5%

2.5V/1.5V @ 84.0%

Control

Enable

TTL compatible

(Positive and Negative Enable Options)

Output

Special Features

Load Current

15A max per channel (60W max)

5V @ 12A max

Line/Load Regulation < 1% V_O(Typ)

Tight Regulation

Ripple and Noise

Output Voltage

Adjust Range

Transient Response 3% V_Odeviation max (3.3V)

50% to 75% Load Change

220 msec typical settling time

(for 3.3V)

30mV_PK-PK

Low Ripple and Noise at < 30mV_PK-PK

Industry Standard ¼ Brick Footprint

Positive and Negative Enable Options

Regulation to Zero Load

High Capacitive Load Start-up

Fixed Switching Frequency

Output Trim

±10% Vo

Input Under-Voltage Lockout

Basic Insulation

Over Current

Protection

130% I_O,maxtypical

Safety

Environmental Specifications

UL + cUL 60950, Recognized

EN60950 through TUV-PS

CB Report

-40ºC to 85ºC Operating Temperature

-55ºC to 125ºC Storage Temperature

Designed for > 1 million hours MTBF

MODEL: ALQ15 SERIES

SHEET 1 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

ALQ15 SERIES

MODEL NAME

ALQ15AF48

ALQ15FG48

ALQ15FG48N-6D*

ALQ15FY48

CONSTRUCTION

Open Frame

V_OUT/ I_OUT

5.0V-12A / 3.3V-15A

3.3V-15A / 2.5V-15A

3.3V-15A / 1.8V-15A

2.5V-15A / 1.5V-15A

Open Frame

ALQ15GM48

OPTIONS:

SUFFIX

Negative Enable:

"N"

Positive Enable:

3.7mm (nominal) Pin Length:

No suffix

"-6"

* Check Part Numbering Scheme on Table 2 and the corresponding external trim

function on Table 1-D

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 2 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Electrical Specifications

STANDARD TEST CONDITION on a single module unless otherwise specified.

TA:

+V_IN:

ENABLE:

-V_IN:

+V_OUT2

-V_OUT

25ºC (Ambient Air)

48V ± 2V

PIN 1

PIN 2

PIN 3

PIN 4

PIN 5

PIN 6

PIN 7

Open (Positive Enable)

Return Pin for +VIN

Connect to Load 2

Return Pin for Load 1 & 2

Open

TRIM:

+V_OUT1

Connect to Load 1

Airflow

Refer to the appropriate derating curve

ABSOLUTE MAXIMUM RATINGS

Stresses in excess of the absolute maximum ratings can cause permanent damage to the converter. Functional

operation of the device is converter is not implied at these or any other conditions in excess of those given in the

operational section of the specs. Exposure to absolute maximum ratings for extended period can adversely affect

device reliability.

Parameter

Device

Symbol

Min

Typ

Max

Unit

Input Voltage:

Continuous

All

V_IN

V_{I N, trans}

100

Vdc

Transient(100ms) :

Operating Ambient Temperature¹

Storage Temperature

Operating Humidity

All

T_A

-40

-55

+85

125

ºC

T_STG

I/O Isolation

1500

Vdc

Maximum Enable Voltage

NOTE: 1. Power Derating applies. Refer to Figures 15 to 18.

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 3 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Electrical Specifications (continued)

INPUT SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

All

V_IN

V_DC

Maximum Input Current²

Conditions: V_IN= between 0 to V_IN,min

P_O= P_O,max; T_A= 25 ºC

I_IN,max

2.20

2.27

Input Reflected Ripple Current³

Conditions: P_O= P_O,max; T_A= 25 ºC

All

I_I1/ I_I2

mA_PK-PK

Standing Loss

All

3.0

Condition: V_IN= V_IN,nom; T_A= 25 ºC

NOTE: 2. The power module is not internally fused. An input line fuse (e.g. Littelfuse Type 312003. 3A, 250V) is

recommended.

3. See Figure 1 for Input Reflected Ripple Current Test Setup.

OUTPUT SPECIFICATIONS

Parameter

Device

Symbol

Min

Typ

Max

Unit

Voltage Setpoint

V_O1/ V _O2

4.93 / 3.25 5.00 / 3.30

3.25 / 2.46 3.30 / 2.50 3.35 / 2.54

3.25 / 1.76 3.30 / 1.80

2.46 / 1.47 2.50 / 1.50

5.08 / 3.35

Vdc

Conditions: V_I= V_IN,nom; T_A= 25 ºC;

V_O1: I_O1= I_O,max; P_O= 60W

V_O2: I_O2= I_O,max; P_O= 60W

3.35 / 1.84

2.54 / 1.53

Load Current

5.0V

3.3V

2.5V

1.8V

1.5V

I_O1/I_O2

12.0

15.0

Combined Output Power

P_O= P_O1+ P_O2

P_O

Line Regulation:

Conditions: V_IN= V_{IN, min}to V_{IN, max}

5.0V

3.3V

2.5V

1.8V

1.5V

0.06

0.03

0.15

0.10

%Vo

;

I_O1= I_{O, max}, I_O2= I_{O, min}

V_IN= V_{IN, min}to V_{IN, max}

I_O1= I_{O, min}, I_O2= I_{O, max}

;

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 4 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Electrical Specifications (continued)

OUTPUT SPECIFICATIONS

Parameter

Device

Symbol

Min

Typ

Max

Unit

Load Regulation⁴

Conditions: I_O= 1A to I_O,max

5.0V

3.3V

2.5V

1.8V

1.5V

0.06

0.12

0.20

0.26

0.33

0.40

0.60

0.70

0.90

1.00

%Vo

;

V_IN=V_IN,nom

Cross Regulation⁴

All

0.20

%Vo

Conditions: V_IN= V_IN,nom, I_O= I_O,max

Temperature

Conditions: T_A= -40 ºC to +65 ºC;

V_IN= V_IN,nom; I_O= I_O,max

All

1.50

%Vo

Output Ripple and Noise:

Peak-to-Peak⁵

Conditions: I_O= I_O,max; V_IN=V_IN,nom

5.0

3.3

2.5

1.8

1.5

mV_PK-PK

;

BW = 20 MHz;

T_A=25 ^oC

External Load Capacitance⁶

All

10000

Over Current Limit Inception

Conditions: Vo = 90% V_O,nom

I_O2= I_O,min;V_IN= V_IN,nom

Characteristics: Hiccup mode,

auto-recovery

;

All

5.0V

I_O,OCP

16.5

13.2

Output Short Circuit

Conditions: V_IN= V_IN,nom; I_O2= 0A

T_A= 25 ºC

All

I_OPK

I_ORMS

I_ODC

I_INS

A_PK

A_RMS

150

Efficiency

89.0

87.0

86.0

83.0

89.5

87.7

86.5

84.0

90.5

88.5

87.5

85.0

Conditions: V_IN= V_IN,nom; T_A= 25 ºC

P_O= P_O,max, balanced

current loading

Switching Frequency

All

300

375

KHz

Note: Can be determined from output

ripple waveform

NOTE: 4. Channel under test shall follow the specified conditions while the other channel is set to min load, 0A.

5. Channel under test shall be set to full load with the other channel set to I_{O, min}- See Fig 2 for the

recommended output ripple and noise test setup.

6. Refer to YSC plots on Fig 19 and 20 to determine loop stability at various output load impedance.

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 5 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Electrical Specifications (continued)

OUTPUT SPECIFICATIONS

Parameter

Dynamic Response⁷

Conditions: DI_O/Dt = 0.15A/ms ;

V_IN= V_IN,nom; T_A= 25°C

Device

Symbol

Min

Typ

Max

Unit

%Vo

msec

5.0V

3.3V

2.5V

1.8V

1.5V

0.8

1.3

1.6

2.3

2.8

2.0

3.0

5.0

Peak Voltage Deviation

Load Change: I_O= 50% to 75% or

75% to 50% I_O,max

Transient Settling Time

Note: V_O,nom(ref.)

5.0V

3.3V

2.5V

1.8V

1.5V

360

220

210

145

136

500

300

(from ref. to 0.1DV_PK)

Turn-On Time

Conditions: V_IN= V_IN,min;I_O1= I_O,max

msec

%V_O

I_O2= I_O,min; T_A= 25°C

Note: V_O1within 1%

Output Voltage Overshoot

Conditions: V_IN= V_IN,nom; T_A= 25°C;

5.0V

3.3V

2.5V

1.8V

1.5V

P_O= 0W

NOTE: 7. Dynamic response tested with 10uF-aluminum and 1uF-tantalum capacitors across the load.

FEATURE SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Undervoltage Lockout

Turn-on Point

All

35.0

34.0

36.0

Turn-off Point

Output Voltage Adjustment Range

Conditions: V_IN= V_IN,nom; T_A= 25°C

V_O1: I_O1= I_O,max, I_O2= I_O,min

V_O2:I_O1= I_O,min; I_O2= I_O,max

Note: Tolerance = ± 1%

All

110

%V_O

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 6 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Electrical Specifications (continued)

FEATURE SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Enable Pin Voltage

POSITIVE LOGIC

w/o N-

Suffix

Logic Low: Module OFF

Logic High: Module ON

V_ENABLE

1.5

2.2

5.0

NEGATIVE LOGIC

N-

Logic Low: Module ON

Logic High: Module OFF

Suffix

V_ENABLE

1.5

2.2

5.0

Enable Pin Current

Logic Low

Logic High: (I_LKGat V_ENABLE= 5V)

All

I_ENABLE

1.0

Module Output Voltage

N-

V_O

1.2

at Logic High (Negative Enable)

Suffix

w/o N-

Suffix

at Logic Low (Positive Enable)

Output Over Voltage Clamp

Conditions: V_IN= V_IN,nom; T_A= 25°C

Characteristics: Hiccup mode;

auto-tracking wrt Vout

trim

5.0V

3.3V

2.5V

1.8V

1.5V

V_O,CLAMP

5.7

3.8

2.8

2.0

1.7

6.0

3.9

3.0

2.2

1.8

6.5

4.3

3.4

2.4

2.1

Over-Temperature Shutdown

Note: 1. T_comp(max)< 140 °C

2. Measured in the vicinity

of pin 3 and R29

All

T_B

110

115

120

°C

ISOLATION SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Isolation Capacitance

All

680

Isolation Resistance

All

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 7 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

SAFETY APPROVAL

The ALQ15 series have been certified through:

UL + cUL 60950, Third Edition - Recognized

EN 60950 through TUV-PS

CB Report

Basic Insulation

TO OSCILLOSCOPE

Vi(+)

Vi(-)

Ltest

12 uH

Cs 220 uF

33 uF

ESR < 0.7 OHM

@ 20 ºC, 100 kHz

BATTERY

ESR < 0.1 OHM

@ 20 ºC, 100 kHz

Note: Measure the input reflected ripple current with a simulated source

inductance (Ltest) of 12uH. Capacitor Cs offsets possible battery/

source impedance. Measure current as shown above.

Figure 1. Input Reflected Ripple Current Measurement Setup.

COPPER STRIP

Vo(+)

RESISTIVE

LOAD

SCOPE

1 uF

10 uF

Vo(-)

Note: Use a 1mF 50V X7R ceramic capacitor and a 10mF 25V tantalum cap.

Scope measurement should be made using a BNC probe socket positioned

about 76mm (3 in.) away from the module’s output terminals. The ext.

capacitors should be placed between the BNC socket and the module’s

output terminals, with a minimum distance of 51mm (2in.) from the latter.

Figure 2. Peak to Peak Output Noise Measurement Setup.

MODEL: ALQ15 SERIES

SHEET 8 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Basic Operation and Features

INPUT UNDER VOLTAGE LOCKOUT

To prevent any instability to the converter that may affect and consequently damage the end system, the ALQ15 series have

been designed to turn-on once V_INis in the voltage range of 35-36 VDC. Likewise, it has also been programmed to turn-off

when V_INdrops down to 32-34 VDC.

OUTPUT VOLTAGE ADJUST/TRIM

The converter comes with a TRIM pin (PIN 6), which is used to adjust both outputs simultaneously by as much as 90% to

110% of its set point. This is achieved by connecting an external resistor as described below.

To INCREASE the output voltages, external R_TRIM-UPresistor should be connected between TRIM PIN (Pin6) and RTN PIN

(Pin 5). Please refer to Figure 3 for the resistor configuration and Table 1 for the required resistor values in attaining the

desired output adjustment

To DECREASE the output voltages, external R_TRIM-DOWNresistor should be connected between TRIM PIN (Pin 6) and V_OUT1

(Pin 7). This trim configuration is true for the AF, FG, FY and GM standard versions. Please refer to Figure 4 for the resistor

configuration and Table 1 for the required resistor values in attaining the desired output adjustment. For ALQ15FG48N-6D,

R_TRIM-DNresistor is connected between the TRIM PIN and V_OUT2(2.5V output pin).

Figure 3. External Trim resistor setup to increase output for

all versions.

Figure 4. External Trim resistor setup to decrease output for

AF; FG; FY and GM standard versions only.

TABLE 1-A

TABLE 1-B

ALQ15AF48 (5V / 3.3V)

ALQ15FG48 / ALQ15FY48

? [%}

R_TRIM-UP[kO]

32.45

13.66

7.83

? [%} R_TRIM-DOWN[kO]

? [%}

R_TRIM-UP[kO]

12.42

5.26

? [%} R_TRIM-DOWN[kO]

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

32.39

15.09

8.95

5.80

3.89

2.60

1.67

0.98

0.44

0.00

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

12.58

5.86

3.47

2.25

1.51

1.01

0.65

0.38

0.17

0.00

3.02

1.93

1.28

0.85

0.55

0.32

0.14

0.00

4.99

3.31

2.20

1.41

0.82

0.36

0.00

+10

MODEL: ALQ15 SERIES

SHEET 9 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Basic Operation and Features (continued)

TABLE 1-C

TABLE 1-D

ALQ15GM48 (2.5V / 1.5V)

ALQ15FG48N-6D*

? [%}

R_TRIM-UP[kO]

70.46

29.65

17.00

10.83

7.18

? [%} R_TRIM-DOWN[kO]

? [%}

R_TRIM-UP[kO]

? [%} R_TRIM-DOWN[kO]

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

70.31

32.75

19.42

12.58

8.43

5.64

3.63

2.12

0.94

46.84

20.82

12.14

7.81

5.20

3.47

2.23

1.30

0.58

0.00

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

66.47

27.32

15.55

9.87

6.53

4.34

2.78

1.62

0.72

0.00

4.77

3.06

1.78

0.79

+10

0.00

* DI/DT’s QD48T025033 Trim Equivalent

ALQ15 standard trim utilizes approximately similar range of trim resistors for both RTRIM-UP and RTRIM-DOWN to adjust

the outputs. This facilitates ease of resistor selection and contributes to a decreased number of parts for customer inventory if

the TRIM pin is being utilized.

OUTPUT ENABLE

The ALQ15 comes with an Enable pin (PIN 2), which is primarily used to turn ON/OFF the converter. Both a Positive (no part

number suffix required) and a Negative (suffix “N” required) Enable Logic options are being offered. Please refer to Table 2

for the Part Numbering Scheme.

For Positive Enable, the converter is turned on when the Enable pin is at logic HIGH or left open. The unit turns off when the

Enable pin is at logic LOW or directly connected to -V_IN. On the other hand, the Negative Enable version turns on when the

Enable pin is at logic LOW or directly connected to -V_IN. The unit turns off when the Enable pin is at Logic HIGH.

OUTPUT OVER VOLTAGE PROTECTION (OVP)

The Over Voltage Protection circuit will shut down the entire converter if any of the two output voltages exceeds the OVP

threshold limits. The converter will automatically recover once the fault is removed.

OVER CURRENT PROTECTION (OCP)

The Over Current Protection circuit will shutdown the converter if any of the load current of either output reaches the OCP

threshold limits. The unit will automatically recover once the over current condition is removed. See Figure 12 for typical

output characteristic under an over current condition.

OVER TEMPERATURE PROTECTION (OTP)

The Over Temperature Protection circuit will shutdown the converter once the sensed location reaches the OTP range. This

feature prevents the unit from overheating and consequently going into thermal runaway, which may further damage the

converter and the end system. Such overheating may be an effect of operation outside the given power thermal derating

conditions. Restart is possible once the temperature of the sensed location drops to less than 110°C.

MODEL: ALQ15 SERIES

SHEET 10 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Performance Curves

ALQ15FG48

3.3V/2.5V Efficiency @ Balanced Current

3.3V/2.5V Efficiency @ P_O1= P_O2

36Vin

48Vin

75Vin

36Vin

48Vin

75Vin

10 15 20 25 30 35 40 45 50 55 60

TOTAL OUTPUT POWER [W]

LOAD CURRENT I_O1= I_O2[A]

Figure 5. Efficiency at balanced power (P_O1= P_O2) for Figure 6. Efficiency curve for balanced output current

various input voltages; taken at T_A=25ºC with the (I_O1= I_O2) at various input voltages; taken at T_A=25ºC

converter mounted vertically and with 200LFM airflow with the converter mounted vertically and with 200LFM

directed from Pin 3 to Pin 1.

airflow directed from Pin 3 to Pin 1.

Figure 7. Start-up characteristic of Vo1 (CH1) and Vo2

(CH2) at balanced load current; V_IN= 48V.

Figure 8. Typical output current waveform under an Over

Current Condition. Output current scale at 0.5A/ mV.

MODEL: ALQ15 SERIES

SHEET 11 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Performance Curves (continued)

ALQ15AF48 (5.0V / 3.3V) SERIES

5V/3.3V Efficiency @ P_O1= P_O2

5V/3.3V Efficiency @ Balanced Current

36Vin

48Vin

75Vin

36Vin

48Vin

75Vin

10 15 20 25 30 35 40 45 50 55 60

TOTAL OUTPUT POWER [W]

LOAD CURRENT I_O1= I_O2[A]

Figure 9. Efficiency at balanced power (P_O1= P_O2) for Figure 10. Efficiency curve for balanced output current

various input voltages; taken at T_A=25ºC with the (I_O1= I_O2) at various input voltages; taken at T_A=25ºC

converter mounted vertically and with 100LFM airflow with the converter mounted vertically and with 100LFM

directed from Pin 3 to Pin 1.

airflow directed from Pin 3 to Pin 1.

ALQ15FY48 (3.3V / 1.8V) SERIES

3.3V/1.8V Efficiency @ Balanced Current

3.3V/1.8V Efficiency @ P_O1= P_O2

36Vin

48Vin

75Vin

36Vin

48Vin

75Vin

10 15 20 25 30 35 40 45 50 55 60

TOTAL OUTPUT POWER [W]

LOAD CURRENT I_O1= I_O2[A]

Figure 11. Efficiency at balanced power (P_O1= P_O2) for Figure 12. Efficiency curve for balanced output current

various input voltages; taken at T_A=25ºC with the (I_O1= I_O2) at various input voltages; taken at T_A=25ºC

converter mounted vertically and with 300LFM airflow with the converter mounted vertically and with 300LFM

directed from Pin 3 to Pin 1.

airflow directed from Pin 3 to Pin 1.

MODEL: ALQ15 SERIES

SHEET 12 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Performance Curves (continued)

ALQ15GM48 (2.5V / 1.5V) SERIES

2.5V/1.5V Efficiency @ Balanced Current

2.5V/1.5V Efficiency @ P_O1= P_O2

36Vin

48Vin

75Vin

36Vin

48Vin

75Vin

10 15 20 25 30 35 40 45 50 55 60

TOTAL POWER [W]

LOAD CURRENT I_O1= I_O2[A]

Figure 13. Efficiency at balanced power (P_O1= P_O2) for

various input voltages; taken at T_A=25ºC with the

converter mounted vertically and with 400LFM airflow

directed from Pin 3 to Pin 1.

Figure 14. Efficiency curve for balanced output current

(I_O1= I_O2) at various input voltages; taken at T_A=25ºC

with the converter mounted vertically and with 400LFM

airflow directed from Pin 3 to Pin 1.

MODEL: ALQ15 SERIES

SHEET 13 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Performance Curves (continued)

CURRENT VS. TEMPERATURE CURVES

Output Power VS Ambient Temperature (5V/3.3V)

Figure 15. Total Output Power (balanced load:

I_O1= I_O2) vs. Ambient Temperature Curves for

ALQ15AF48 version taken at various airflow

conditions (converter mounted horizontally with

airflow direction from PIN 3 to PIN1; V_IN= 48V

nominal).

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

Ambient Temperature (^oC)

Output Power VS. Ambient Temperature (3.3V/2.5V)

Figure 16. Total Output Power (balanced load:

I_O1= I_O2) vs. Ambient Temperature Curves for

ALQ15FG48 version taken at various airflow

conditions (converter mounted horizontally with

airflow direction from PIN 3 to PIN1; V_IN= 48V

nominal).

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

500 LFM

600 LFM

Ambient Temperature (^oC)

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 14 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Performance Curves (continued)

CURRENT VS. TEMPERATURE CURVES

Output Power VS. Ambient Temperature (3.3V/1.8V)

Figure 17. Total Output Power (balanced load:

I_O1= I_O2) vs. Ambient Temperature Curves for

ALQ15FY48 version taken at various airflow

conditions (converter mounted horizontally with

airflow direction from PIN 3 to PIN1; V_IN= 48V

nominal).

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

500 LFM

600 LFM

Ambient Temperature (^oC)

Figure 18. Total Output Power (balanced load:

I_O1= I_O2) vs. Ambient Temperature Curves for

ALQ15GM48 version taken at various airflow

conditions (converter mounted horizontally with

airflow direction from PIN 3 to PIN1; V_IN= 48V

nominal).

Output Power VS. Ambient Temperature (2.5V/1.5V)

0 LFM

100 LFM

200 LFM

300 LFM

400 LFM

500 LFM

600 LFM

Ambient Temperature (^oC)

MODEL: ALQ15 SERIES

MARCH 4, 2004 - REVISION 01

SHEET 15 OF 19

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Young’s Stability Curves

ALQ15 3.3 volt channel

ALQ15 2v5 volt channel

0.1

0.01

1 10

_______15°

_______30°

_______45°

_______60°

_______75°

_______90°

100

1 10

100

1 10

frequency Hz

100

1 10

100

1 10

frequency Hz

Figure 19. YSC Plots of 3V3 and 2V5 Output Channels.

MODEL: ALQ15 SERIES

SHEET 16 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Young’s Stability Curves (continued)

ALQ15 1v5 volt channel

ALQ15 1v8 volt channel

0.1

0.01

1 10

100

1 10

_______15°

_______30°

_______45°

_______60°

_______75°

_______90°

100

1 10

frequency Hz

100

1 10

100

1 10

frequency Hz

Figure 20. YSC Plots of 1V8 and 1V5 Output Channels.

MODEL: ALQ15 SERIES

SHEET 17 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Mechanical Specifications

Parameter

Device

Symbol

Min

Typ

Max

Unit

Dimension

All

2.30 [58.4]

1.48 [37.6]

0.50 [12.6]

in [ mm ]

Weight

TBD

g [oz]

PIN ASSIGNMENT

+V_IN

ENABLE

-V_IN

Secondary Return/ Ground

TRIM

+V_O1

+V_O2

NOTE: Pin diameters at Æ = 0.04" [1.02 mm] nominal.

Pin placement tolerance ± 0.005 [0.127]

Mechanical tolerance ± 0.02 [0.5]

TOP

PIN SIDE DOWN

FRONT

SIDE

PIN SIDE UP

Figure 21. ALQ15 series mechanical outline ( inches [(mm ]).

MODEL: ALQ15 SERIES

SHEET 18 OF 19

MARCH 4, 2004 - REVISION 01

Technical Reference Notes

ALQ15XX48X Series

(Open Frame Dual Output Quarter Brick)

Mechanical Specifications (continued)

SOLDERING CONSIDERATIONS

The ALQ15 series converters are compatible with standard wave soldering techniques. When wave soldering, the

converter pins should be preheated for 20-30 seconds at 110°C and wave soldered at 260°C for less than 10 seconds.

When hand soldering, the iron temperature should be maintained at 425°C and applied to the converter pins for less

than 5 seconds. Longer exposure can cause internal damage to the converter. Cleaning can be performed with cleaning

solvent IPA or with water.

PART NUMBERING SCHEME FOR ORDERING

OUTPUT

VOLTAGE VOLTAGE

OUTPUT

SPECIAL

FEATURE

PIN LENGTH

OPTION

ENABLE LOGIC

ALQ15

A = 5.0V

F = 3.3V

G = 2.5V

F = 3.3V

G = 2.5V

Y = 1.8V

M = 1.5V

“Blank” = Positive

"N" = Negative

“Blank”= 5mm (Std) “D” – Special

“-6” = 3.7mm

Trim function

TABLE 2. Part Numbering information.

Please call 1-888-41-ASTEC for further inquiries

or visit us at www.astecpower.com

MODEL: ALQ15 SERIES

SHEET 19 OF 19

MARCH 4, 2004 - REVISION 01

ALQ15AF48 [ASTEC]

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