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HTB28XXS

(185°C, 28V Input, Single Output)

Figure 1. Block Diagram

Notes for Electrical Performance Characteristics Table

1.

Parameter guaranteed and measured should be during line and load regulation tests.

2.

Parameter tested with 10MHz bandwidth.

3.

Capacitive load may be any value from 0 to the maximum limit without compromising DC performance. A

capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation

of the load fault detection circuitry, appearing as a short circuit during turn-on.

4.

Parameter shall be tested as part of design characterization and after design or process changes.

5.

An overload is that condition of load in excess of rated load but less than that necesary to trigger the short

circuit protection and is the condition of maximum power dissipation.

6.

Load step transition time between 2 and 10 microseconds.

7.

50% load.

8.. Input step transition time between 2 and 10 microseconds.

9.

Turn-on delay time measurement is for either a step application of power at the input or the removal of a ground

signal from the Inhibit pin (pin 3) while power is applied to the input.

10. Subgroup 1, 4 electrical characteristics are measured at +25°C, subgroup 2, 5 at +185°C and subgroup 3, 6 at

-35°C. Subgroups 1, 2 and 3 are static tests. Subgroups 4, 5 and 6 are dynamic tests.

11. Parameter tested with resistive load.

full load.