STHS237x

Summary description

7/20

1.1

Pin descriptions

1.1.1

1.1.2

Classification (CLASS)

For classification resistor values, see Table 3 on page 8.

1.1.3

Detection resistor (DET)

Connect a 24.9k

Device properly.

1.1.4

This is the return power line on the PSE side (negative).

1.1.5

Return (RTN)

This is the return power output on the load side, negative rail.

1.1.6

Power Good output (PG)

This pin indicates that the STHS power MOSFET is fully on and works in normal operation

mode (Power Good). Open drain, high impedance means that the power is good; in all other

cases, the impedance is low (referenced to RTN).

1.1.7

Undervoltage Lockout Input (UVLO, STHS2376A/L only)

(see Figure 6 on page 10).

Note: STHS2376A/L only, for all other devices, this is No Connect.

1.1.8

This is the Power Input/Output, positive rail.