ADM1025ARQZ-REEL7 Datasheet ADM1025AARQ, ADM1025AARQZ, ADM1025ARQ | P19-P21

Preliminary Technical Data

ADM1025/ADM1025A

Rev. P5 | Page 19 of 21| www.onsemi.com

Table 11. Register 41h – Status Register 1 (Power-On Default

<7:0> = 00h)

Bit Name R/

Description

0 +2.5 V_Error Read-

Only

A 1 indicates a high or low limit

has been exceeded.

1 V

CCP

_Error Read-

Only

A 1 indicates a high or low limit

has been exceeded.

2 +3.3 V_Error Read-

Only

A 1 indicates a high or low limit

has been exceeded.

3 +5 V_Error Read-

Only

A 1 indicates a high or low limit

has been exceeded.

4 Local Temp

Error

Read-

Only

A 1 indicates a high or a low

temperature limit has been

exceeded.

5 Remote

Temp Error

Read-

Only

A 1 indicates a high or low

Remote temperature limit has

been exceeded.

6 Reserved

7 Reserved

Table 12. Register 42h – Status Register 2 (Power-On Default

<7:0> = 00h)

Bit Name R/

Description

0 +12 V_Error Read-

Only

A 1 indicates a high or low limit

has been exceeded.

1 V

_Error Read-

Only

A 1 indicates a high or low limit

has been exceeded.

2 Reserved Read-

Only

Undefined

3 Reserved Read-

Only

Undefined

4 Reserved Read-

Only

Undefined

5 Reserved Read-

Only

Undefined

6 Remote

Diode Fault

Read-

Only

A one indicates either a short or

open circuited fault on the

remote thermal diode inputs.

7 Reserved Read-

Only

Undefined

Table 13. Register 47h – VID REGISTER (Power-On Default

= 0000 (VID[3:0]))

Bit Name R/

Description

0–3 VID[3:0] Read-Only The VID[3:0] inputs from

Pentium/PRO power

supplies to indicate the

operating voltage (e.g.,

1.3 V to 2.9 V).

4–5 Reserved Read-Only Undefined

6 Offset

Config

Read/Write Configures offset register

to be used with internal

or external channel. If Bit

0 of Test Register = 1 and

Bit 7 of VID Register = 0,

then setting this bit to 1

configures tHhe Offset

temperature channel.

Clearing this bit

configures the Offset

temperature channel.

(Default = 0.)

RST

ENABLE

Read/Write When set to 1, enables

the

RST

output function

on Pin 16. This bit

defaults to 0 on power-

up. (

RST

Disabled.)

Table 14. Register 49h – VID4 Register (Power-On Default =

1000 000(VID4))

Bit Name R/

Description

0 VID4 Read VID4 Input (If Selected)

(Defaults to 0)

1–7 Reserved Read

ADM1025/ADM1025A

Preliminary Technical Data

Rev. P5 | Page 20 of 21| www.onsemi.com

Table 15. Registers 15h–3Dh – Value and Limit Registers

Address R/

Description

15h Read/Write Manufacturers Test Register

1Fh Read/Write Offset Register

20h Read-Only 2.5 V Reading

21h Read-Only V

CCP

Reading

22h Read-Only 3.3 V Reading

23h Read-Only 5 V Reading

24h Read-Only 12 V Reading

25h Read-Only V

Reading

26h Read-Only Remote Diode Temperature

Reading

27h Read-Only Local Temperature Reading

2Bh Read/Write 2.5 V High Limit

2Ch Read/Write 2.5 V Low Limit

2Dh Read/Write V

CCP

High Limit

2Eh Read/Write V

CCP

Low Limit

2Fh Read/Write 3.3 V High Limit

30h Read/Write 3.3 V Low Limit

31h Read/Write 5 V High Limit

32h Read/Write 5 V Low Limit

33h Read/Write 12 V High Limit

34h Read/Write 12 V Low Limit

35h Read/Write V

High Limit

36h Read/Write V

Low Limit

37h Read/Write Remote Temperature High Limit

38h Read/Write Remote Temperature Low Limit

39h Read/Write Local Temperature High Limit

3Ah Read/Write Local Temperature Low Limit

For the high limits of the voltages, the device is doing a greater-than

comparison. For the low limits, however, it is doing a less-than or equal

comparison.

Table 16. Register 15h – Manufacturers Test Register

Bit Name R/

Description

0 Read/Write Used to select

RST

INT

functions. Refer to

RST

INT

Output section.

1 Read/Write Used to select RST or

INT

functions. Refer to

RST

INT

Output section.

2–7 Reserved Read/Write Reserved. Only values written

to these bits should be zeros.

Table 17. Register 3Eh – Company ID

Value

(Bits

7:0)

Description

0100

0001

Read-

Only

This location contains the company

identification number that may be used by

software to determine the manufacturer’s

device. This register is read-only.

Table 18. Register 3Fh – Stepping

Value (Bits 7:0) R/

Description

0010 [Version] Read-Only Stepping ID Number and

Version

Table 19. NAND Tree Test Vectors

Vector

No. SDA SCL VID0 VID1 VID2 VID3

ADD/

RST

INT

/NTO

1 0 0 0 0 0 0 1

2 0 0 0 0 0 1 0

3 0 0 0 0 1 1 1

4 0 0 0 1 1 1 0

5 0 0 1 1 1 1 1

6 0 1 1 1 1 1 0

7 1 1 1 1 1 1 1

Preliminary Technical Data

ADM1025/ADM1025A

Rev. P5 | Page 21 of 21| www.onsemi.com

OUTLINE DIMENSIONS

Figure 19. 16-Lead Shrink Small Outline Package [QSOP]

(RQ-16)

Dimensions shown in inches

ORDERING GUIDE

Model Temperature Range Package Description Package Option Option

ADM1025ARQ 0°C to 100°C 16-Lead QSOP RQ-16 Integrated 100 kΩ VID Pull-Ups

ADM1025ARQ-REEL 0°C to 100°C 16-Lead QSOP RQ-16 Integrated 100 kΩ VID Pull-Ups

ADM1025ARQ-REEL7 0°C to 100°C 16-Lead QSOP RQ-16 Integrated 100 kΩ VID Pull-Ups

ADM1025ARQZ

0°C to 100°C 16-Lead QSOP RQ-16 Integrated 100 kΩ VID Pull-Ups

ADM1025ARQZ-REEL

0°C to 100°C 16-Lead QSOP RQ-16 Integrated 100 kΩ VID Pull-Ups

ADM1025ARQZ-R7

0°C to 100°C 16-Lead QSOP RQ-16 Integrated 100 kΩ VID Pull-Ups

ADM1025AARQ 0°C to 100°C 16-Lead QSOP RQ-16 Open-Drain VID Inputs

ADM1025AARQZ

0°C to 100°C 16-Lead QSOP RQ-16 Open-Drain VID Inputs

Z = RoHS Compliant Part.

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