ASL4501SHN datasheet(20/43 Pages) NXP

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ASL4501SHN

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Product data sheet

Rev. 2 — 10 January 2018

20 of 43

NXP Semiconductors

ASL4501SHN

Four-phase boost converter

The calibration result register contains the calibration results based on the selection of the

Calib/Ftrim[4:0] setting in Table 27.

Table 28.

Calib/Ftrim settings

Bit

Symbol

Description

Value

Function

4 to 0

Calib/Ftrim[4:0] frequency trimming

bits

01000

default frequency

 33.33 %

01001

default frequency

 30.56 %

01010

default frequency

 27.78 %

01011

default frequency

 25.00 %

01100

default frequency

 22.22 %

01101

default frequency

 19.44 %

01110

default frequency

 16.67 %

01111

default frequency

 13.89 %

00000

default frequency

 11.11 %

00001

default frequency

 8.33 %

00010

default frequency

 5.56 %

00011

default frequency

 2.78 %

00100

default frequency

00101

default frequency + 2.78 %

00110

default frequency + 5.56 %

00111

default frequency + 8.33 %

11000

default frequency + 11.11 %

11001

default frequency + 13.89 %

11010

default frequency + 16.67 %

11011

default frequency + 19.44 %

11100

default frequency + 22.22 %

11101

default frequency + 25.00 %

11110

default frequency + 27.78 %

11111

default frequency + 30.56 %

10000

default frequency + 33.33 %

10001

default frequency + 36.11 %

others

not allowed

content of calibration

result register (4Ch);

Calib/Ftrim[4:0] select

the content available

in register 4Ch

bit 0 - calibration complete bit:

1 = calibration complete; 0 = calibration ongoing

bits 4 to 0 calibration value REF2

bits 4 to 0 calibration value CAL2

bits 4 to 0 calibration value REF3

bits 4 to 0 calibration value CAL3

bits 4 to 0 calibration value REF4

bits 4 to 0 calibration value CAL4

Table 29.

Calibration result register (address 4Ch)

Bit

Symbol

Description

Value

Function

7 to 0

Calib_value[7:0]

calibration value as selected

per Calib/Ftrim[4:0] setting

read only

calibration info per

Calib/Ftrim[4:0] setting

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