NCP81233MNTXG Datasheet NCP81233MNTXG | P25-P27

NCP81233

www.onsemi.com

TABLE 7. STANDARD COMMAND CODES (PART 1) (continued)

Command

Code

Comment

Bytes

DescriptionDefaultR/W

0x20 R 0x20 Vout_Mode 1 The NCP81233 supports VID mode for programming the output

voltage.

0x21 R/W 0x0000 Vout_Command 2 Sets the output voltage using VID in low byte.

0x24 R/W 0x00FF Vout_Max 2 Sets maximum output voltage (VID data format).

(Reserved for future use.)

0xA4 R/W 0x0000 Vout_Min 2 Sets minimum output voltage (VID data format).

(Reserved for future use.)

0x60 R/W 0x0000 TON_DELAY 2 Sets the delay time, in ms, from the end of system reset until the

output voltage starts to rise. The lowest 4 bits of the high byte is

valid, i.e.

0x0000 = 0ms

0x0100 = 1ms

0x0200 = 2ms

…

0x0F00 = 15ms

0x78 R 0x00 STATUS BYTE 1

Bit Name Description

7 BUSY A fault was declared because

the NCP81233 was busy and

unable to respond

6 OFF This bit is set whenever the

NCP81233 is not switching

5 VOUT_OV This bit gets set whenever the

NCP81233 goes into OVP (Abs

OVP and/or Normal OVP) mode.

4 IOUT_OC This bit gets set whenever the

NCP81233 turns off due to an

over current event.

3 VIN_UV Not supported.

2 OT This bit gets set whenever the

NCP81233 turns off due to an

over temperature event.

1 CML This bit gets set whenever a

communications or logic fault

has occurred.

0 None of the

Above

A fault has occurred which is not

one of the above.

NCP81233

www.onsemi.com

TABLE 7. STANDARD COMMAND CODES (PART 1) (continued)

Command

Code

Comment

Bytes

DescriptionDefaultR/W

0x79 R 0x0000 STATUS WORD 2

Byte Bit Name Description

Low

7 BUSY A fault was declared because

the NCP81233 was busy and

unable to respond.

6 OFF This bit is set whenever the

NCP81233 is not switching.

5 VOUT

_OV

This bit gets set whenever the

NCP81233 goes into OVP

mode.

4 IOUT_

This bit gets set whenever the

NCP81233 turns off due to an

over current event.

3 VIN_

Not supported.

2 OT This bit gets set whenever the

NCP81233 turns off due to an

over temperature event.

1 CML This bit gets set whenever a

communications or logic fault

has occurred.

0 None

of the

Above

A fault has occurred which is not

one of the above.

High

7 VOUT This bit gets set whenever the

measured output voltage goes

outside its power good limits or

an OVP/UVP event has taken

place. i.e. any bit in Status

VOUT is set.

6 Iout/

Pout

This bit gets set whenever the

measured output current or

power exceeds its warning limit

or goes into OCP. i.e. any bit in

Status IOUT is set.

5 (Reserved for future use.)

4 (Reserved for future use.)

3 POWER

GOOD

The VDD_PWRGD signal is

deasserted. Same as

PowerGood in General Status.

2 (Reserved for future use.)

NCP81233

www.onsemi.com

Table 8. STANDARD COMMAND CODES (PART 2)

Command

Code

R/W Default Description # Bytes Comment

0x7A R 0x00 STATUS

VOUT

Bit Name Description

7 VOUT_OVER

VOLTAGE

FAULT

This bit gets set whenever an OVP event

takes place.

6 VOUT_OVER

VOLTAGE

WARNING

This bit gets set whenever the measured

output voltage goes above its

power-good limit.

(Reserved for future use.)

5 VOUT_

UNDER

VOLTAGE

WARNING

This bit gets set whenever the measured

output voltage goes below its

power*good limit.

(Reserved for future use.)

4 VOUT_UNDE

RVOLTAGE

FAULT

This bit gets set whenever an UVP event

takes place.

3 (Reserved for future use.)

2 (Reserved for future use.)

1 (Reserved for future use.)

0 (Reserved for future use.)

0x7B R 0x00 STATUS

IOUT

Bit Name Description

7 IOUT_OVER

CURRENT

FAULT

This bit gets set if the NCP81233 turns off

due to an OCP Event

6 (Reserved for future use.)

5 IOUT_OVER

CURRENT

WARNING

This bit gets set if IOUT exceeds its

programmed high warning limit.

(Reserved for future use.)

4 (Reserved for future use.)

3 (Reserved for future use.)

2 (Reserved for future use.)

1 (Reserved for future use.)

0 (Reserved for future use.)

0x7E R 0x00 STATUS

CML

Bit Name Description

7 INVALID

COMMAND

Invalid or unsupported command is

received. (Reserved for future use.)

6 INVALID

DATA

Invalid or unsupported data is received.

(Reserved for future use.)

5 PEC_FAULT PEC failed. (Reserved for future use.)

4 (Reserved for future use.)

3 (Reserved for future use.)

2 (Reserved for future use.)

1 OTHERS A communication fault other than the

ones listed has occurred. (Reserved for

future use.)

0 (Reserved for future use.)

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P44

NCP81233MNTXG

Mfr. #:

Buy NCP81233MNTXG

Manufacturer:

ON Semiconductor

Description:

Switching Controllers MULTI-PHASE CONTROLLER WI

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

NCP81233MNTXG