ADP1046AACPZ-R7 datasheet(62/88 Pages) AD

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ADP1046A

Data Sheet

Rev. 0 | Page 62 of 88

Table 59. Register 0x3B—Light Load Mode Disable Settings

Bits

Bit Name

R/W

Description

Disable OUTAUX

R/W

Setting this bit means that OUTAUX is also disabled if the load current falls below the light load SR

disable threshold.

Disable OUTD

R/W

Setting this bit means that OUTD is also disabled if the load current falls below the light load SR

disable threshold.

Disable OUTC

R/W

Setting this bit means that OUTC is also disabled if the load current falls below the light load SR

disable threshold.

Disable OUTB

R/W

Setting this bit means that OUTB is also disabled if the load current falls below the light load SR

disable threshold.

Disable OUTA

R/W

Setting this bit means that OUTA is also disabled if the load current falls below the light load SR

disable threshold.

[2:0]

Light load SR

disable

R/W

These bits set the load current limit on the CS2 ADC below which the synchronous rectifier outputs

(SR1 and SR2) are disabled. This value also determines the point at which the power supply goes into

light load mode and the light load mode filter is used. This value is programmable as a percentage of

the CS2 ADC full scale (either 60 mV or 120 mV). The hysteresis and the averaging speed are programmable

in Register 0x7D.

Light Load Threshold as % of Full Scale

Bit 2

Bit 1

Bit 0

37.5 µs

75 µs

150 µs

300 µs

7.81%

3.91%

1.95%

0.98%

15.63%

7.81%

3.91%

1.95%

23.44%

11.72%

5.86%

2.93%

31.25%

15.63%

7.81%

3.91%

39.06%

19.53%

9.77%

4.88%

46.88%

23.44%

11.72%

5.86%

54.69%

27.34%

13.67%

6.84%

ID REGISTERS

Table 60. Register 0x3C—Silicon Revision ID

Bits

Bit Name

R/W

Description

[7:0]

Silicon revision

This register contains the manufacturer’s silicon revision code for the device. This value is used by the

manufacturer for tracking purposes.

Table 61. Register 0x3D—Manufacturer ID

Bits

Bit Name

R/W

Description

[7:0]

Manufacturer ID

code

This register contains the manufacturer’s ID code for the device. It is used by the manufacturer for test

purposes and should not be read from in normal operation. This value is hardwired to 0x41 to

represent the Analog Devices ID code.

Table 62. Register 0x3E—Device ID

Bits

Bit Name

R/W

Description

[7:0]

Device ID code

This register contains the ID code for the device. This value is hardwired to 0x46 to represent the

ADP1046A.

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