MP8796B datasheet(45/52 Pages) MPS

45 / 52 page

MP8796B – 16V, 30A, SYNCHRONOUS STEP-DOWN CONVERTER WITH PMBUS

MP8796B Rev. 1.0

www.MonolithicPower.com

1/19/2020

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

MFR_CTRL_OPS (D2h)

The MFR_CTRL_OPS command sets the switching frequency and light-load operation mode of the

MP8796B.

Bits

Name

Access

Behavior

Default

Description

[7:3]

RESERVED

00000

[2:1]

SWITCHING_

FREQUENCY

R/W

Live

00: Set fSW to 400kHz

01: Set fSW to 600kHz

10: Set fSW to 800kHz

11: Set fSW to 1000kHz

[0]

SKIP_CCM

(SYNC)

R/W

Live

0: Pulse-skip mode at light load

1: Forced CCM at light load

The default value of D2h is 0x05.

MFR_ADDR_PMBUS (D3h)

Command

MFR_ADDR_PMBUS

Format

Direct

Bit

Access

R/W

Function

Enable

ADDR

Default Value

Bit[7] (enable bit):

1: The address is decided by MFR_ADDR_PMBUS [6:0]

0: The address is decided by the ADDR pin

The default value of D3h is 0xB0.

MFR_VOUT _OVP_FAULT_LIMIT (D4h)

This MFR_VOUT _FAULT_LIMIT command sets the thresholds for UVP and OVP.

Bits

Name

Access

Behavior

Default

Description

[7:4]

RESERVED

0000

[3:2]

OV_EXIT_

R/W

Live

Sets the OVP exit threshold.

00: 10% of VREF

01: 50% of VREF

10: 80% of VREF

11: 102.5% of VREF

[1:0]

OV_TH

R/W

Live

Sets the OVP entry threshold.

00: 115% of VREF

01: 120% of VREF

10: 125% of VREF

11: 130% of VREF

The above thresholds are relative values of the reference voltage. The default value of D4h is 0x0E.

MP8796B Datasheet(PDF) 45 Page - Monolithic Power Systems

MP8796B Datasheet(HTML) 45 Page - Monolithic Power Systems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

Datasheet Download

Link URL