AA05E_07 ASTEC | Alldatasheet

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Technical Reference Notes (TRN) AA05E Series

36 Vdc to 75 Vdc Inputs, 5 W

ASTEC POWER - Andover 1 of 8 REV Description Date Approved A Initial Release 2/4/00 TECHNICAL REFERENCE NOTES (TRN) AA05E SERIES DC-DC CONVERTER ASTEC POWER ANDOVER, MA

  1. General Description and Scope

This specification covers the requirements for AA05E-048L-XXXS switching DC-DC converter. This module operates off a 36 – 75V DC bus and provides both a single and dual isolated output. Six output options are available in the family as shown below. Table 1. Device Part Numbers

  1. Electrical Specifications

2.1 Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. to absolute maximum ratings for extended periods can adversely affect device reliability.

2.2 Input Specifications

Table 2. Input Specifications impedance: TA = 25 ºC.) See Figure 1. CAUTION: This power module is not internally fused. An input line fuse must always be used.

2.3 Output Specifications

Table 3. Output Specifications

Table 3. Output Specifications (continued)

2.4 Isolation Specifications

Table 4. Isolation Specifications

2.5 General Specifications

Table 5. General Specifications

2.6 Test Configurations

Cs offsets possible battery impedance. Measure current as shown above. Figure 1. Input Reflected-ripple Test Setup. the load between 51 mm and 76 mm (2 in. and 3 in. ) from module. Figure 2. Peak-to-Peak Output Noise Measurement Test Setup.

3.0 Thermal Considerations

radiation to the surrounding environment. the natural convection condition represents airflow rates of approximately 0.25 m/s (50 ft/min).

Determine Pd from Figure 5: Pd = 1.6 W. Determine Airflow from Figure 3: v = 2.0 m/s (400 ft/min). Figure 3. Forced Convection Power Derating. Figure 4. 033S Power Dissipation Figure 5. 050S Power Dissipation

Figure 6. 120S Power Dissipation Figure 7. 150S Power Dissipation Figure 8. 120D Power Dissipation Figure 9. 150D Power Dissipation

4.0 Input Fusing Considerations

Technical Reference Notes (TRN) AA05E Series ASTEC POWER - Andover 8 of 8

5.0 Outline Diagram

Figure 10 . AA05E Unit Outline – Pin View Pin Assignment Single Output Dual Output Pins 2 & 3: -Vin Pins 2 & 3: -Vin Pins 22 & 23: +Vin Pins 22 & 23: +Vin Pin 14: +Vout Pin 14: +Vout Pin 16: Com Pins 9 & 16: Com Remaining pins NC Pin 11: -Vout Remaining pins NC 0.40 [10.2] 0.18 [4.6] 0.10 [2.54] 0.60 [15.24] 0.02 [0.50] 1.27 [32.2] 0.60 [15.24] 0.80 [20.3] 0.10 [2.54] 0.010 [0.25] 2 3 9 10 11 1415162423