iW1788 Product Summary

High Power Pump Express™ Plus-Compatible

Digital PWM AC/DC Controller

Rev. 1.0

iW1788

© 2016 Dialog Semiconductor (UK) Ltd.

Product Summary

4 of 8

4.0 Pinout Description

Pin #

Name

Type

Pin Description

1

Analog Input Auxiliary voltage sense (used for primary regulation).

2

SD/OTP

Analog Input External shutdown control. Used for external over-temperature protection

(OTP) by connecting an NTC resistor from this pin to Ground.

3

CDC/OVP

Analog Input Used for external cable drop compensation (CDC) configuration and

supplemental over-voltage protection (OVP).

4

ASU

Output

Control signal for active start-up device (BJT or depletion mode NFET).

5

Analog Input Primary current sense. Used for cycle-by-cycle peak current control and

limit.

6

OUTPUT

Output

Gate drive for external MOSFET switch.

7

GND

Ground

Ground.

8

Power Input Power supply for control logic.

iW1788

SD/OTP

CDC/OVP

ASU

GND

OUTPUT

1

2

3

8

7

6

4

5

Figure 4.1 : 8-Lead SOIC-8 Package