IPS2050HQ datasheet(3/32 Pages) STMICROELECTRONICS

3 / 32 page

Pin connection

Figure 2. Pin connections (top through view)

Table 1. Pin descriptions

Pin no.

Name

Description

PSSO24

QFN48L

exposed pad

VCC

Supply voltage

IN2

Channel 2 input

IPD2

Channel 2 initial current duration / level selector.

Connect to GND by a capacitor to set duration of IPKH-2 (see

Section 7.3 and Table 9 / Table 10).

Connect to IN2 by a 220 kΩ resistor to disable initial IPKH-2 threshold on

channel 2 (the over-current limit for channel 2 is only IPKL-2).

Connect to GND by a 10 kΩ resistor to disable IPKL-2 on channel 2 (the

over-current threshold for channel 2 is only IPKH-2).

FLT2

Fault (Overload or Over-temperature) diagnostic pin for channel 2

5 to 12

17 to 24

OUT2

Channel 2 power stage output

13 to 20

35 to 42

OUT1

Channel 1 power stage output

FLT1

Fault (Overload or Over-temperature) diagnostic pin for channel 1

IPD1

Channel 1 initial current duration / level selector.

Connect to GND by a capacitor to set duration of IPKH-1 (see

Section 7.3 and Table 9 / Table 10).

Connect to IN1 by a 220 kΩ resistor to disable initial IPKH-1 threshold on

channel 1 (the over-current limit for channel 1 is only IPKL-1).

Connect to GND by a 10 kΩ resistor to disable IPKL-1 on channel 1 (the

over-current threshold for channel 1 is only IPKH-1).

IN1

Channel 1 input

GND

Device ground

Note:

Leaving IPDX floating is equivalent to a 1 µs duration for IPKH-X.

IPS2050H, IPS2050H-32, IPS2050HQ, IPS2050HQ-32

Pin connection

DS13779 - Rev 3

page 3/32

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