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Technical Reference Notes AEH/ALH80 Series
AEH/ALH80 Single Output Baseplate/Open-Frame DC-DC Converter Module Industry Standard 1/2 Brick: 36V-75V Input / 80A Output Current
The AEH/ALH80 series is part of Astec's next generation single output, high-density industry standard half bricks. It operates from a 36V to 75V DC Bus and comes in three different Isolated Logic Output voltages (ILO) well suited for DPA applications. It's designed to handle 80A maximum output current for 1.8V, 1.5V and 1.2V at high levels of efficiency. It provides tight regulation and exhibits clean and monotonic output start up characteristics. The AEH/ALH80 comes with industry standard features such as Input UVLO, OCP, OVP, OTP, output Trim, differential output Sense pins. It comes either with baseplate or open frame construction, with double pair or single pair (option) output pins.
Electrical Parameters
Input
Input Range Input Surge Efficiency 36-75 VDC 100V / 100ms 1.8V @ 87.0% 1.5V @ 85.5% 1.2V @ 83.0%
Control
Enable TTL compatible (Positive and Negative Enable Options)
Output
Special Features
* * * * * * * * * Industry Standard 1/2 Brick Footprint Positive and Negative Enable Options Regulation to Zero Load High Capacitive Load Start-up Fixed Switching Frequency at 400kHz Output Trim Input Under-Voltage Lockout Low profile / open-frame Double pair or single pair output pins option
Load Current Line/Load Regulation Ripple and Noise Output Voltage Adjust Range Transient Response
80A max < 1% VO 50mVPK-PK (Typ) 10% VO <5% VO deviation (Typ) 50% to 75% Load Change 250sec settling time (Typ) +10%VO 120% IO,MAX
Remote Sense Over Current Protection
Environmental Specifications
* * * -40C to 85C Operating Temperature -40C to 125C Storage Temperature MTBF > 1 million hours
Safety
UL + cUL 60950, Recognized EN60950 through TUV-PS CB Test Report
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Technical Reference Notes AEH/ALH80 Series
AEH/ALH80 Series MODEL NAME AEH80Y48 AEH80M48 AEH80K48 ALH80Y48 ALH80M48 ALH80K48 CONSTRUCTION Baseplate adapted Baseplate adapted Baseplate adapted Open Frame; Low Profile Open Frame; Low Profile Open Frame; Low Profile VOUT / IOUT 1.8V / 80A 1.5V / 80A 1.2V / 80A 1.8V / 80A 1.5V / 80A 1.2V / 80A
OPTIONS: Negative Enable: Positive Enable (Default): Single Pair Output Pins: Redundant Output Pins (Default):
SUFFIX "N" No suffix "-3" No suffix
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Technical Reference Notes AEH/ALH80 Series
Electrical Specifications
STANDARD TEST CONDITION on a single module unless otherwise specified.
TA Airflow +VIN Enable -VIN -VOUT -Sense Trim +Sense +Vout
PIN 1 PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 PIN 7 PIN 8
25C (Ambient Air) Refer to Figures 21 to 24 Return pin for +VIN Dependent on model series 48V 2V Connected to Load Connected to +VOUT Open Connected to -VOUT Connected to Load (return)
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 Input Voltage1 Continuous Transient (100ms) Isolation Voltage Input to Output Input to Case Output to Case Operating Ambient Temperature Storage Temperature Operating Humidity Maximum Enable Voltage Max Output Power Device All All All AEH ALH AEH All All All Y (1.8V) M (1.5V) K (1.2V) TA TC TSTG PO PO PO Symbol VIN VI N, trans Min 0 0 Typ Max 75 100 1500 1500 1500 +85 100 125 85 25 144 120 96 Unit Vdc Vdc Vdc Vdc Vdc C C % Vdc W W W
-40 -40 -55 -
-
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Technical Reference Notes AEH/ALH80 Series
Electrical Specifications (continued)
INPUT SPECIFICATION Parameter Device Symbol Min Typ Max Unit Operating Input Voltage All VIN 36 48 75 VDC Input Under-Voltage Lock-out All T_ON Threshold 34.0 34.8 35.5 Vdc T_OFF Threshold 32.5 33.5 34.5 Maximum Input Current1 Y (1.8V) IIN,max 5.2 A Conditions: VIN =VIN,min M (1.5V) 4.4 IO = IO,max; TA = 25 C K (1.2V) 3.6 Max PDISS @ IO = 0A (VIN = VIN,NOM) All 5 W All II1/ II2 15 mAPK-PK Input Reflected Ripple Current2 Conditions: PO = PO,max; TA = 25 C BW: 5Hz to 20MHz Note: 1. An input line fuse is recommended for use (e.g. Littlefuse type 3AB 314, 8A/250V or equivalent). 2. External input capacitance required. See Input Ripple Current test measurement setup on Fig 1.
OUTPUT SPECIFICATIONS Parameter Output Voltage Set point VIN = VIN, min to VIN, max; IO =IO,Max Output Regulation Line: VIN = VIN, Min to VIN, Load: IO = IO, Min to IO, Max Temperature: Ta = -40 C to +85C Ripple and Noise3 Peak-to-Peak: (5Hz to 20MHz) Output Current4 External Load Capacitance Capacitor ESR Output Current-limit Inception VOUT = 90% VO,SET5 Over Voltage Protection Range6 Over Temperature Range7
(AVG PCB TEMPERATURE)
Device 1V8 (Y) 1V5 (M) 1V2 (K)
Max
Symbol VO,SET
Min 1.770 1.475 1.180 -
Typ 1.800 1.500 1.200 0.3 0.1 0.1 0.3 -
Max 1.830 1.525 1.220 0.6 0.4 0.4 0.7 1.0
Unit Vdc Vdc Vdc %Vo
All 1V8 (Y) All 1V2 (K) All
All All All All 1V8 (Y) 1V5 (M) 1V2 (K) All 1V8 (Y) 1V5 (M) 1V2 (K)
IO IO
0 4 83 2.20 1.80 1.44 110
50 2.40 1.90 1.50 87.0 85.5 83.0
100 80 50,000 100 2.90 2.50 2.10 120 -
mVp-p A F m A
V
C % % %
Efficiency VIN = VIN-NOM; IO = IO,MAX TA=25C

86.0 84.5 82.0
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Technical Reference Notes AEH/ALH80 Series
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS Parameter Turn-On Response Time IO = IO,MAX, VO within 1% Switching Frequency Dynamic Response: IO/t=0.1A / uS CO = 0uF Load Change from IO = 50% to 75% of IO, Max: Peak Deviation Settling Time to VO, SET tolerance Load Change from IO = 50% to 25% of IO, Max: Peak Deviation Settling Time to VO, SET tolerance Output Overshoot at T-on / T-off Passive Resistive Full Load Output Enable ON/OFF Negative Enable ("N" suffix) Enable Pin voltage for Module ON Module OFF Positive Enable (No suffix) Enable Pin voltage for Module ON Module OFF Output Voltage Remote Sensing8,10 Output Voltage Trim Range9,10 Note: Device All All Symbol Min 360 Typ 4 400 0.1 Max 10 440 Unit ms KHz A/s mV s mV s %Vo
All
-
-
0
200 500 200 500 4
All
-
All
-
N suffix
-
-0.7 2.95
-
1.2 10.0
V V
No suffix All All
-
2.95 -0.7 90
-
10.0 1.2 10 110
V %VO %VO
3. See Figure 2 for Ripple and Noise test measurement setup. Output ripple may exceed max limits at high line condition. 4. Appropriate Thermal Derating applies. See Figures 17 to 22 for the Thermal Derating Curves 5. In an event of an over current condition - the converter will be latched off. Restart is possible either by cycling the input voltage or toggling the Enable signal for 100ms. Consult factory for Auto restart option. 6. The OVP mode is latching. The converter will be latched off once the sensed voltage across the output pins exceeds the threshold limits. Restart is possible by either cycling the input voltage or toggling the Enable signal for 100ms. For testing purposes, output current should be derated so as not to exceed maximum output power. 7. Output of the module will be terminated once the operating temp reaches the OTP range. Normal operation resumes once the temperature falls below the OTP range. 8. The sense pins can be used to compensate for any voltage drops (per indicated max limits) that may occur along the connection between the output pins to the load. Pin 9 (+Sense) and Pin 7 (-Sense) should be connected to Pin 10/11 (+Vout) and Pin 5/6 (Return) respectively at the point where regulation is desired. 9. Refer to Equation (1) and (2) and Figures 3 and 4 for the Output Trim Adjust configuration. 10. The combination of remote sense and Trim adjust cannot exceed 110% of VO, NOM.
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Technical Reference Notes AEH/ALH80 Series
Electrical Specifications (continued)
SAFETY APPROVAL The AEH80/ALH80 series have been certified through: * UL + cUL 60950, Third Edition - Recognized (PENDING) * EN 60950 through TUV-PS (PENDING) * Meets Basic Insulation
TO OSCILLOSCOPE
Ltest 12 uH BATTERY Cs 220 uF ESR < 0.1 OHM @ 20 C, 100 kHz 33 uF ESR < 0.7 OHM @ 20 C, 100 kHz
Vi(+)
Vi(-)
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(+) 0.1 uF 1 F Vo(-) 10 uF SCOPE RESISTIVE LOAD
Note: Use a 0.1F 50V X7R ceramic capacitor and a 10F 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.
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Technical Reference Notes AEH/ALH80 Series
Basic Operation and Features
INPUT UNDER VOLTAGE LOCKOUT To prevent any instability to the converter, which may affect the end system, the AEH/ALH80 series have been designed to turn-on once VIN is in the voltage range of 34-35.5 VDC. Likewise, it has also been programmed to turn-off when VIN drops down to 32.5-34.5 VDC.
OUTPUT VOLTAGE ADJUST/TRIM The converter comes with a TRIM pin (PIN 8), which is used to adjust the output 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, external Radj_up resistor should be connected between TRIM PIN (Pin8) and +SENSE PIN (Pin 7). Please refer to Equation (1) for the required external resistance and output adjust relationship. 1.8V / 1.5V Equation (1a): Vo(100 + %) - 100 - 2 k Radj_up % 1.225 % 1.2V Equation (1b):
-Vin Case
-Vout -Sense Vadj
Radj_up Rload
Enable +Vin
+Sense +Vout
5.1 Vo(100 + %) - 510 - 6.1 k Radj_up 0.6 % %
To DECREASE the output, external Radj_down resistor should be connected between TRIM PIN (Pin 8) and -SENSE PIN (Pin 9). Please refer to Equation (2) for the required external resistance and output adjust relationship. 1.8V / 1.5V Equation (2a) 100 Radj_down - 2 k % 1.2V Equation (2b):
Radj_down
Figure 3. External resistor configuration to increase the output.
-Vin Case
-Vout -Sense
Radj_down
Vadj Enable +Vin +Sense +Vout
Rload
510 - 6.1 k %
Figure 4. External resistor configuration to decrease the output.
Where: Radj = resistance in kohms ? % = percent change in the output
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Technical Reference Notes AEH/ALH80 Series
Basic Operation and Features (continued)
OUTPUT ENABLE The AEH/ALH80 series 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 -VIN. On the other hand, the Negative Enable version turns unit on when the Enable pin is at logic LOW or directly connected to -VIN. The unit turns off when the Enable pin is at Logic HIGH.
OUTPUT OVER VOLTAGE PROTECTION (OVP) The Over Voltage Protection circuit comes in latching mode. The converter is latched off if the output voltage exceeds the OVP threshold limits. The OVP latch is reset either by cycling the input voltage or toggling the Enable signal for 100ms.
OVER CURRENT PROTECTION (OCP) The Over Current Protection circuit comes in latching mode. The converter is latched off if the load current on the output reaches the OCP threshold limit. The OCP latch can be reset either by cycling the input voltage or toggling the Enable signal for 100ms. Consult factory for Auto-restart option.
OVER TEMPERATURE PROTECTION (OTP) The Over Temperature Protection circuit will shutdown the converter once the average PCB temperature 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 110C.
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Technical Reference Notes AEH/ALH80 Series
Performance Curves
1.8V SERIES
Efficiency vs. Load Current, T A = 25C 95% 90% 85% Efficiency 80% 75% 70% 65% 60% 55% 50% 0 10 20 30 40 50 60 Output Current (Amps) 70 80
Vin = 36Vdc Vin = 48Vdc Vin = 75Vdc
Power Dissipation vs. Load Current, T A = 25C 25 Power Dissipation (Watts)
Vin = 36 Vdc
20 15 10 5 0 0 10
Vin = 48 Vdc Vin = 75 Vdc
20
30
40
50
60
70
80
Output Current (Amps)
Figure 5. Efficiency vs. Load Current Curves at TA=25C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Figure 6. Power Dissipation vs. Load Current Curves at TA=25C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Efficiency vs. Load Current, T A = 85C 95% 90% 85% Efficiency 80% 75% 70% 65% 60% 55% 50% 0 10 20 30 40 50 60 Output Current (Amps) 70 80
Vin = 36 Vdc Vin = 48 Vdc Vin = 75 Vdc
Power Dissipation vs. Load Current, T A = 85C 30 Power Dissipation (Watts)
Vin = 36 Vdc
25 20 15 10 5 0 0 10
Vin = 48 Vdc Vin = 75 Vdc
20 30 40 50 60 Output Current (Amps)
70
80
Figure 7. Efficiency vs. Load Current Curves at TA=85C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Figure 8. Power Dissipation vs. Load Current at TA=85C for different input voltages with 300LFM airflow directed from Pins 4 to 1.
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Technical Reference Notes AEH/ALH80 Series
Performance Curves (continued)
1.5V SERIES
Efficiency vs. Load Current, T A = 25C 95% Power Dissipation (Watts) 90% 85% Efficiency 80% 75% 70% 65% 60% 55% 50% 0 10 20 30 40 50 60 Output Current (Amps) 70 80
Vin = 36Vdc Vin = 48Vdc Vin = 75Vdc
Power Dissipation vs. Load Current, T A = 25C 25
Vin = 36 Vdc
20 15 10 5 0 0
Vin = 48 Vdc Vin = 75 Vdc
10
20 30 40 50 60 Output Current (Amps)
70
80
Figure 9. Efficiency vs. Load Current Curves at TA=25C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Figure 10. Power Dissipation vs. Load Current at TA=25C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Efficiency vs. Load Current, TA = 85C 95% Power Dissipation (Watts) 90% 85% Efficiency 80% 75% 70% 65% 60% 55% 50% 0 10 20 30 40 50 60 Output Current (Amps) 70 80
Vin = 36 Vdc Vin = 48 Vdc Vin = 75 Vdc
Power Dissipation vs. Load Current, T A = 85C 30
Vin = 36 Vdc
25 20 15 10 5 0 0
Vin = 48 Vdc Vin = 75 Vdc
10
20 30 40 50 60 Output Current (Amps)
70
80
Figure 11. Efficiency vs. Load Current Curves at TA=85C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Figure 12. Power Dissipation vs. Load Current at TA=85C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
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Technical Reference Notes AEH/ALH80 Series
Performance Curves (continued)
1.2V SERIES
Efficiency vs. Load Current, T A = 25C 95% Power Dissipation (Watts) 90% 85% Efficiency 80% 75% 70% 65% 60% 55% 50% 0 10 20 30 40 50 60 Output Current (Amps) 70 80
Vin = 36Vdc Vin = 48Vdc Vin = 75Vdc
Power Dissipation vs. Load Current, T A = 25C 25
Vin = 36 Vdc
20 15 10 5 0 0
Vin = 48 Vdc Vin = 75 Vdc
10
20
30
40
50
60
70
80
Output Current (Amps)
Figure 13. Efficiency vs. Load Current Curves at TA=25C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Figure 14. Power Dissipation vs. Load Current at TA=25C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Efficiency vs. Load Current, TA = 85C 90% 85% 80% Efficiency 75% 70% 65% 60%
Vin = 36 Vdc
Power Dissipation vs. Load Current, T A = 85C 30 Power Dissipation (Watts)
Vin = 36 Vdc
25 20 15 10 5 0
Vin = 48 Vdc Vin = 75 Vdc
55% 50% 45% 0 10 20 30 40 50 60 Output Current (Amps)
Vin = 48 Vdc Vin = 75 Vdc
70
80
0
10
20 30 40 50 60 Output Current (Amps)
70
80
Figure 15. Efficiency vs. Load Current Curves at TA=85C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
Figure 16. Power Dissipation vs. Load Current at TA=85C for different input voltages with 300 LFM airflow directed from Pins 4 to 1.
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Technical Reference Notes AEH/ALH80 Series
Performance Curves (continued)
CURRENT VS. TEMPERATURE CURVES
AEH80Y48 O/P Current vs. Ambient Tem p 80 70 Output Current [A] Output Current [A] 60 50 40 30 20 10 0 25 35 45 55 65 75 Ambient Temperature [C] 85
0 LFM 100 LFM 200 LFM 400 LFM
ALH80Y48 O/P Cutrrent vs. Ambient Temp 80 70 60 50 40 30
0 LFM
20 10 0 25
200 LFM 200 LFM 400 LFM
35
45 55 65 75 Ambient Temparature [C]
85
Figure 17. 1.8V Output Derating Curves (100C Baseplate) at various airflow conditions directed across PIN 4 to 1 with the module mounted vertically.
Figure 18. 1.8V Output Derating Curves (125C Junction) at various airflow conditions directed across PIN 4 to 1 with the module mounted vertically.
AEH80M48 O/P Current vs. Ambient Tem p 80 70 60 50 40 30
0 LFM
ALH80M48 O/P Current vs. Ambient Temp 80 70 Output Current [A] 60 50 40 30 20 10 0
0 LFM 100 LFM 200 LFM 400 LFM
Output Current [C]
20 10 0 25
100 LFM 200 LFM 400 LFM
35
45
55
65
75
85
25
35
45
55
65
75
85
Ambient Temperature [C]
Ambient Temperature [C]
Figure 19. 1.5V Output Derating Curves (100C Baseplate) at various airflow conditions directed across PIN 4 to 1 with the module mounted vertically.
Figure 20. 1.5V Output Derating Curves (125C Junction) at various airflow conditions directed across PIN 4 to 1 with the module mounted vertically.
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Technical Reference Notes AEH/ALH80 Series
Performance Curves (continued)
CURRENT VS. TEMPERATURE CURVES
AEH80K48 O/P Current vs. Ambient Tem p 80 70 Output Current [A]
ALH80K48 O/P Current vs. Ambient Tem p 80 70 Output Current [A] 60 50 40 30
0 LFM
60 50 40 30 20 10 0 25 35 45 55 65 75 85 Ambient Temperature [C]
0 LFM 100 LFM 200 LFM 400 LFM
20 10 0 25
100 LFM 200 LFM 400 LFM
35
45
55
65
75
85
Ambient Temperature [C]
Figure 21. 1.2V Output Derating Curves (100C Baseplate) at various airflow conditions directed across PIN 4 to 1 with the module mounted vertically.
Figure 22. 1.2V Output Derating Curves (125C Junction) at various airflow conditions directed across PIN 4 to 1 with the module mounted vertically.
Figure 23. 1.8V Start-up characteristic at VIN = 48Vdc, full load condition at TA = 25C.
Figure 24. 1.8V transient load response for a 25% IO,MAX (40-60-40A) load change at VIN = 48Vdc, TA = 25C.
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Technical Reference Notes AEH/ALH80 Series
Performance Curves (continued)
Figure 25. 1.5V Start-up characteristic at VIN = 48Vdc, full load condition at TA = 25C.
Figure 27. 1.2V Start-up characteristic at VIN = 48Vdc, full load condition at TA = 25C.
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Technical Reference Notes AEH/ALH80 Series
Mechanical Specifications
Parameter Dimension Device All AEH ALH AEH ALH Symbol L W H H Min Typ 2.40 [60.9] 2.30 [58.4] 0.50 [12.7] 0.42 [10.6] 130 [4.6] 110 [3.9] 7 8 9 10 11 Max Unit in [ mm ] in [ mm ] in [ mm ] in [ mm ] g [oz] g [oz]
Weight PIN ASSIGNMENT 1 2 3 4 5 6
+VIN Enable (On/Off) Case -VIN -Vo -Vo [Optional Pin]
-SENSE TRIM +SENSE +VO [Optional Pin] +Vo
0.20 [5.1]
1.90 [48.3]
M3 X0.5 MOUNTING HOLE 4 PLACES
0.50 [12.7] 0.20 [5.1]
0.20 [5.1]
+ Vin
+ Output
0.08O[2.0O] 4 PLACES
0.04O [1.0O] 7 PLACES
2.00 [50.8] 2.40 [61.0]
- Vin
-Output
0.47 [11.9]
0.50 [12.7]
PIN SIDE DOWN
0.50 [12.7]
SIDE VIEW
PIN ASSIGNMENT
0.70 [17.7] 0.90 [22.9] 1.20 [30.5] 1.50 [38.1] 1.70 [43.1] 1.90 [48.3]
11 10 9 8 7 6 5
1 2
0.90 [22.8]
1.50 [38.1] 1.90 [48.3]
3 4
1 + Vin 2 Enable (On/Off) 3 CASE 4 - Vin 5-6 -Output 7 -Sense 8 Trim 9 + Sense 10-11 + O utput NOTES: ALL DIMENSIONS ARE IN INCHES (MILLIMETERS) PIN PLACEMENT TOLERANCE : 0.005(0.127) MECHANICAL TOLERANCE .002(0.5) RECOMMENDED SCREW TORQUE SETTING FOR MOUNTING INTO CUSTOMER BOARD MUST BE 5-6 LB/IN
0.20 [5.1] 1.90 [48.3]
PIN SIDE UP
Figure 25. AEH80 Series (Baseplate) Mechanical Outline Drawing.
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Technical Reference Notes AEH/ALH80 Series
Mechanical Specifications (continued)
2.30 [58.4] 0.42 [10.6] 0.20 [5.1] 1.90 [48.3] 0.23 [5.9]
-Output
- Vin
2.40 [60.9] 2.00 [50.8]
0.08O[2.0O] 4 PLACES
0.04O [1.0O] 7 PLACES
+ Output
+ Vin
PIN SIDE DOWN
0.50 [12.7] 0.50 [12.7]
SIDE VIEW
PIN ASSIGNMENT
0.70 [17.8] 0.90 [22.9] 1.20 [30.5] 1.50 [38.1] 1.70 [43.2] 1.90 [48.3]
11 10 9 8 7 6 5
0.90 [22.8]
1
1.50 [38.1]
2
1.90 [48.3]
3 4
1 + Vin 2 Enable (On/Off) 3 CASE 4 - Vin 5-6 -Output 7 -Sense 8 Trim 9 + Sense 10-11 + Output NOTES: ALL DIMENSIONS ARE IN INCHES (MILLIMETERS) PIN PLACEMENT TOLERANCE : 0.005(0.127) MECHANICAL TOLERANCE .002(0.5)
0.20 [5.1]
PIN SIDE UP
Figure 26. ALH80 Series (Open Frame) Mechanical Outline Drawing.
SOLDERING CONSIDERATIONS The AEH/ALH80 series converters are compatible with standard wave soldering techniques. When wave soldering, the converter pins should be preheated for 20-30 seconds at 110C and wave soldered at 260C for less than 10 seconds. When hand soldering, the iron temperature should be maintained at 425C 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.
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Technical Reference Notes AEH/ALH80 Series
Mechanical Specifications (continued)
PART NUMBERING SCHEME FOR ORDERING OUTPUT VOLTAGE VIN ENABLE LOGIC OUTPUT PIN OPTION
AwH80
E = Baseplate L = Open Frame
x
Y = 1.8V M = 1.5V K = 1.2V
48
y
N = Negative Enable "Blank" = Positive Enable (Default)
z
"-3" = Single pair of output pins (delete Pins 6 and 10) "Blank" = 4 output pins (Pins 5, 6, 10, 11 present)
Please call 1-888-41-ASTEC for further inquiries or visit us at www.astecpower.com
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