External junction temperature protection for the Q1 pass transistor. Since Q1's internal junction temperature can't be directly measured, it must be inferred from power dissipation, junction to ambient thermal resistance, and ambient temperature. If it to
| Authors | Stephen Woodward |
| Main Document | Article «Programmable current source with overtemperature shutoff» |
| Description | Figure 2 |
| File Format / Size | PDF / 22 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «Programmable current source with overtemperature shutoff»
- Figure 1. An improved efficiency precision current source has no overtemperature protection. With no protection, if the Q1 heatsink is inadequate, high power or ambient temperature might destroy it
- Figure 2. External junction temperature protection for the Q1 pass transistor. Since Q1's internal junction temperature can't be directly measured, it must be inferred from power dissipation, junction to ambient thermal resistance, and ambient temperature. If it to