ISL8200AMM

3

FN8287.1

November 27, 2012

Pin Configuration

ISL8200AMMREP

(23 LD QFN)

TOP VIEW

(22) PGOOD

(23) N.C.

(12) EN

(13) VIN

(17) PVIN

(14) PVCC

(15) PGND1

(18) PGND

(16) PHASE

(20) OCSET

(19) VOUT

(21) VCC

PD1

PD3

PD2

PD4

Pin Descriptions

PIN #

PIN NAME

PIN DESCRIPTION

1

VOUT_SET

with respect to VSEN_REM- is 500k

Ω. The voltage input typ. is 0.6V.

2

VSEN_REM-

Analog Voltage Input - This pin is the negative input of standard unity gain operational amplifier for differential remote sense

connecting a resistor from this pin to the VOUT_SET pin.

3

ISFETDRV

Digital Output - This pin is used to drive an optional NFET, which will connect ISHARE with the system ISHARE bus upon

completing a pre-bias startup. The voltage output range is 0V to 5V.

4, 15

PGND1

Normal Ground - All voltage levels are referenced to this pad. This pad provides a return path for the low side MOSFET drives

and internal power circuitries as well as all analog signals. PGND and PGND1 should be connected together with a ground

plane.

5

ISET

Analog Current Output - This pin sources a 15µA offset current plus Channel 1’s average current. The voltage (VISET) set by

an external resistor (RISET) represents the average current level of the local active module. For full-scale current, RISET

should be ~10k

Ω. The output current range is 15µA to 126µA typ.

The ISET and ISHARE pins are used for current sharing purposes with multiple ISL8200AMMREP modules. In the single

module configuration, this pin can be tied to the ISHARE pin. In multi-phase operation, if noise is a concern, add an additional

10pF capacitor to the ISET line.