1. General Operating Considerations & Document References

️· The datasheet is part of a larger context. Users are directed to read "Application Note 1" for basic stability, supply, heat sinking, current limits, SOA interpretation and specification details.
️· Apex provides design tools on their website to aid in calculations (stability, power dissipation, current limit, heat sink selection, etc.).

2. Safe Operating Area (SOA) – Crucial for Proper Usage

️· SOA Combinations: SOA curves represent combined limits of all factors influencing the amplifier's performance.
️· Transient Loads: Pay special attention to capacitive and inductive loads.
️· Capacitive Load Limits:
- 18V Supply: Max. 2mF capacitor
- 15V Supply: Max. 10mF capacitor
- 10V Supply: Max. 25mF capacitor
️· Inductive Load Limits:
- 18V Supply, Ilim = 5A: Max. 0.7mH inductor
- 15V Supply, Ilim = 5A: Max. 0.7mH inductor
- 10V Supply, Ilim = 5A: Max. 5H inductor
️· EMF and Reactive Loads/Short Circuits: Specific current limits are provided to prevent damage in scenarios of short circuits to supply rails or common ground.
- Short to ±V S (18V): .5A current limit
- Short to ±V S (15V): .7A current limit
- Short to ±V S (10V): 1.6A current limit
- Short to Common (18V): 1.7A current limit
- Short to Common (15V): 2.8A current limit
- Short to Common (10V): 4.2A current limit

3. Current Limiting

️· Use two current limit resistors (as shown in an external connection diagram - not provided in this text).
️· Minimum value for R_CL is 0.12 ohms, but a higher value is recommended for reliability. Refer to the "General Operating Considerations" section of the handbook for adjustment details.

4. Device Mounting

️· The case is electrically isolated (floating).
️· Directly mount to a heat sink with thermal compound.
️· Use screws with Belleville spring washers to maintain clamping pressure.
️· Connect the case to common or another suitable AC ground potential.

Important Notes/Cautions (based on the text):

️· Always refer to Application Note 1: This document provides crucial context.
️· SOA is critical: Careful attention to load characteristics (capacitive, inductive, EMF) is vital.
️· Current limits are important: Use appropriate values and adjust as needed.
️· Proper heat sinking is essential: Proper mounting with thermal compound and Belleville washers is required to ensure proper thermal performance.