LTM4686BEVPBF datasheet(47/130 Pages) AD

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Table 6. LTM4686B MFR_ADDRESS Command Examples

Expressed in 7- and 8-Bit Addressing

DESCRIPTION

HEX DEVICE

ADDRESS BIT

BIT

0 R/W

7 BIT 8 BIT

Rail4

0x5A 0xB4 0

Global4

0x5B 0xB6 0

Default

0x4F 0x9E 0

Example 1

0x40 0x80 0

Example 2

0x41 0x82 0

Disabled2,3

Note 1: This table can be applied to the MFR_RAIL_ADDRESSn command,

but not the MFR_ADDRESS command.

Note 2: A disabled value in one command does not disable the device, nor

does it disable the Global address.

Note 3: A disabled value in one command does not inhibit the device from

responding to device addresses specified in other commands.

Note 4: It is not recommended to write the value 0x00, 0x0C

(7 bit), 0x5A (7 bit), 0x5B (7 bit), or 0x7C (7 bit) to the MFR_RAIL_

ADDRESSn or MFR_ADDRESS commands.

Table 5. ASEL Pin Strapping Look-Up Table to Set the

LTM4686B’s MFR_ADDRESS (Applicable Regardless of

MFR_CONFIG_ALL[6] Setting)

RASEL* (kΩ)

SLAVE ADDRESS

Open

MFR_ADDRESS[6:0]_R/W

32.4

MFR_ADDRESS[6:4]_1111_R/W

22.6

MFR_ADDRESS[6:4]_1110_R/W

18.0

MFR_ADDRESS[6:4]_1101_R/W

15.4

MFR_ADDRESS[6:4]_1100_R/W

12.7

MFR_ADDRESS[6:4]_1011_R/W

10.7

MFR_ADDRESS[6:4]_1010_R/W

9.09

MFR_ADDRESS[6:4]_1001_R/W

7.68

MFR_ADDRESS[6:4]_1000_R/W

6.34

MFR_ADDRESS[6:4]_0111_R/W

5.23

MFR_ADDRESS[6:4]_0110_R/W

4.22

MFR_ADDRESS[6:4]_0101_R/W

3.24

MFR_ADDRESS[6:4]_0100_R/W

2.43

MFR_ADDRESS[6:4]_0011_R/W

1.65

MFR_ADDRESS[6:4]_0010_R/W

0.787

MFR_ADDRESS[6:4]_0001_R/W

MFR_ADDRESS[6:4]_0000_R/W

where:

R/W = Read/Write bit in control byte.

All PMBus device addresses listed in the specification are 7 bits wide

unless otherwise noted.

Note: The LTM4686B will always respond to slave address 0x5A and

0x5B regardless of the NVM or ASEL resistor configuration values.

*RASEL value indicated is nominal. Select RASEL from a resistor vendor

such that its value is always within 3% of the value indicated in the

table. Take into account resistor initial tolerance, T.C.R. and resistor

operating temperatures, soldering heat/IR reflow, and endurance of the

resistor over its lifetime. Thermal shock cycling, moisture (humidity)

and other effects (depending on one’s specific application) could also

affect RASEL’s value over time. All such effects must be taken into

account in order for resistor pin-strapping to yield the expected result

at every SVIN power-up and/or every execution of MFR_RESET or

RESTORE_USER_ALL, over the lifetime of one’s product.

LTM4686B

Rev. 0

For more information www.analog.com

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