ADP1055ACPZ-R7 datasheet(116/140 Pages) AD

116 / 140 page

ADP1055

Data Sheet

Rev. A | Page 116 of 140

Table 199. Register 0xFE57—DOUBLE_UPD_RATE (Requires Use of the GO Bit in Register 0xFE00)

Bits

Bit Name

R/W

Description

Enable duty balance

R/W

0 = disable.

1 = enable.

Enable OCP duty

equalization

R/W

1 = enable OCP duty equalization. When OCP occurs, shut down any OUTx that is high and

generate an equalizing OCP to balance the complementary output. Refer to Register 0xFE56

for the selection of PWM outputs.

[5:4]

Duty balance

averaging time

R/W

These bits control how rapidly the misbalance information is used to correct for imbalance.

Bit 5

Bit 4

Time

Normal value: cycle-by-cycle integral is divided by 8 and applied to OUTx.

2× faster: cycle-by-cycle integral is divided by 4 and applied to OUTx.

4× faster: cycle-by-cycle integral is divided by 2 and applied to OUTx.

8× faster: no averaging; cycle-by-cycle integral is applied on the next cycle

to OUTx.

Reserved

R/W

Set to 0 for proper operation.

[2:1]

Duty balance and VS

balance limit

R/W

To balance OUTA and OUTB, time is added to or subtracted from OUTA and OUTB and added to or

subtracted from OUTC and OUTD, as in VS balance. These bits set the maximum balance value.

Bit 2

Bit 1

Limit (ns)

±160

±80

±40

±20

Enable double update

rate

R/W

0 = disable.

1 = enable.

The VIN_SCALE_MONITOR command sets the gain (KVIN) by which the input sensed voltage at the DUT (VIN_DUT) is scaled to generate

the reading for the READ_VIN command. READ_VIN = VIN_DUT × KVIN, where KVIN = Y × 2N.

Table 200. Register 0xFE58—VIN_SCALE_MONITOR

Bits

Bit Name

R/W

Description

[15:11]

Exponent-N

R/W

Twos complement N-exponent used in linear data format (X = Y × 2N).

[10:0]

Mantissa-Y

R/W

Twos complement Y-mantissa used in linear data format (X = Y × 2N).

The IIN_CAL_GAIN command sets the ratio of the voltage at the input current sense pins to the sensed current (in ohms).

Table 201. Register 0xFE59—IIN_CAL_GAIN

Bits

Bit Name

R/W

Description

[15:11]

Exponent-N

R/W

Twos complement N-exponent used in linear data format (X = Y × 2N).

[10:0]

Mantissa-Y

R/W

Twos complement Y-mantissa used in linear data format (X = Y × 2N).

The TSNS_SETTING command is the temperature sensor current select.

Table 202. Register 0xFE5A—TSNS_SETTING

Bits

Bit Name

R/W

Description

Enable reverse diode

R/W

1 = enable external reverse temperature sensor

[6:5]

Resolution

R/W

11 = 11 bit

10 = 12 bit

01 = 13 bit

00 = 14 bit

Reserved

R/W

Set this bit to 0 for proper operation.

Temperature sense level

shift disable

R/W

0 = enable internal diode level shifter during external TJ sense. This setting is recommended for a

single-ended (PN) diode connected between JTD and AGND.

1 = disable internal diode level shifter during external TJ sense. This setting is recommended for

differential sensing.

[2:0]

Temperature sense

current select

R/W

Set these bits to 0x04 for proper operation (10 μA).

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