

Picor Corporation · picorpower.com

PI2211

Rev 1.1, Page 2 of 26

PI2211



Pin Descriptions

Pin Name

Pin

Number

Description

BUS

7

Bus input power.

VCC

6

Positive supply input. Derived internally from BUS for voltages > 4.5Vdc, externally from VAUX for

lower BUS voltages.

UV/EN

20

BUS voltage sense for under-voltage fault. An enable or disable for the controller.

OV

19

BUS voltage sense for over-voltage fault.

CSP

8

Current sense positive location input.

CSN

10

Current sense negative location input.

DRN

9

MOSFET drain sense .

SRC

12

MOSFET source sense.

GDR

11

MOSFET gate drive.

PWRGD

21

Power good indicator.

GND

13, 14, 15

Controller ground reference.

SEL

16

Programming option for SOA programming with external resistors.

RACC

24

Internal current programming resistor.

TIMER

23

Programmable delay timer to inhibit the start of the controller.

SOAS

22

SOA current programming resistor.

SOAR

4

SOA thermal programming resistor.

SOAT

3

SOA transient response programming resistor.

-

1, 2, 5, 17,

18

No connects, pins are to be left floating.

TAB

TAB

electrically connected to PI2211 GND only.

Ordering Information

Part Number

Description

PI2211-00-QAIG

24 lead QFN package