PM6652 datasheet(10/53 Pages) STMICROELECTRONICS

10 / 53 page

Pin settings

PM6652

10/53

Doc ID 16867 Rev 5

VDAC

Internal DAC reference output. Bypass to GND with a 10 nF capacitor.

IMON

Current monitor output. Bypass to remote ground through R-C network.

IMONFB

Current monitor gain setting pin. Connect to

VOUT through a resistor in the

range 0.47 k

Ω to 7 kΩ.

SSTART

Soft-start programming pin and mode of operation selection input.

ILIM

Current limit input. Connect ILIM to GND with a resistor to set the current limit

threshold.

OSC

Frequency selection pin. Connect this pin to the input power supply rail

through a resistor.

PWRGD

Power good signal (open drain output). High when VCC_GFX output voltage is

within +200 mV/-300 mV of the programmed VDAC value.

DPRSLPVR

Render suspend state enter and render suspend exit mode control input.

Pulse-skipping or forced PWM working mode selection for IMVP6.5 CPU and

VR11 mode.

PGND

Power ground.

LGATE

Low-side gate driver output.

PVCC

+5 V supply for internal driver supply.

CLKEN#

CLOCK ENABLE open drain output (active low) and mode of operation

selection pin.

BOOT

Bootstrap capacitor connection. Input for the supply voltage of the high-side

gate driver.

HGATE

High-side gate driver output.

PHASE

Switch node connection and return path for the high-side gate driver.

COREON

Switching regulator ON/OFF control input.

VID0

VIDs bits of the controller voltage programming DAC input. They allow

programming of the no load output voltage, depending on the selected mode

of operation. VID0 is the LSB and VID6 the MSB. Connect VIDx to a voltage

<0.33 V to program a ‘0’; connect VIDx to a voltage >0.77 V to program a ‘1’.

VID1

VID2

VID3

VID4

VID5

VID6

Exposed pad. Connect to SGND.

Figure 5.

Pin functions (continued)

Pin n°

Name

Description

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