ADP5050ACPZ-R7 datasheet(42/60 Pages) AD

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ADP5050

Data Sheet

Rev. 0 | Page 42 of 60

DETAILED REGISTER DESCRIPTIONS

This section describes the bit functions of each register used by

the ADP5050. To reset a register, the internal VDD power-on

reset signals must be low, unless otherwise noted.

ADDRESS 0x01

channel. The on or off status of a channel is controlled by the

CHx_ON bit in this register and the external hardware enable

pin for the channel (logical AND). The default value of the

CHx_ON bit, 1, means that the channel enable is controlled by

the external hardware enable pin. The channel can be disabled

or enabled via the I2C interface only when the ENx pin is high.

Pulling the ENx pin low resets the corresponding CHx_ON bit

to the default value (1) to allow another valid startup when the

ENx pin is high again.

Table 19. Register 1 Bit Assignments

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

CH5_ON

CH4_ON

CH3_ON

CH2_ON

CH1_ON

Table 20. PCTRL Register, Bit Function Descriptions

Bits

Bit Name

Access

Description

[7:5]

Reserved

R/W

Reserved.

CH5_ON

R/W

0 = disable Channel 5 (EN5 pin must be high).

1 = enable Channel 5 (default).

CH4_ON

R/W

0 = disable Channel 4 (EN4 pin must be high).

1 = enable Channel 4 (default).

CH3_ON

R/W

0 = disable Channel 3 (EN3 pin must be high).

1 = enable Channel 3 (default).

CH2_ON

R/W

0 = disable Channel 2 (EN2 pin must be high).

1 = enable Channel 2 (default).

CH1_ON

R/W

0 = disable Channel 1 (EN1 pin must be high).

1 = enable Channel 1 (default).

Table 21. Register 2 Bit Assignments

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Reserved

VID1[4:0]

Table 22. VID1 Register, Bit Function Descriptions

Bits

Bit Name

Access

Description

[7:5]

Reserved

R/W

Reserved.

[4:0]

VID1[4:0]

R/W

These bits set the output voltage for Channel 1. The default value is programmed by factory fuse.

00000 = 0.8 V (adjustable).

00001 = 0.85 V.

00010 = 0.875 V.

00011 = 0.9 V.

…

00111 = 1.0 V.

…

10011 = 1.3 V.

…

11011 = 1.5 V.

…

11110 = 1.575 V.

11111 = 1.6 V.

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