ASL4501SHN datasheet(5/43 Pages) NXP

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ASL4501SHN

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Product data sheet

Rev. 2 — 10 January 2018

5 of 43

NXP Semiconductors

ASL4501SHN

Four-phase boost converter

[1]

For enhanced thermal and electrical performance, the exposed center pad of the package should be

soldered to board ground (and not to any other voltage level).

[2]

VGG1 and VGG2 are connected internally.

[3]

Refer to Figure 4 and Figure 14 for the recommended connections for pin FB1 and pin FB2.

FB2

feedback; to be connected to Vout2[3]

n.c.

not connected

SNL3

phase 3 sense low

SNH3

phase 3 sense high

GND

ground

phase 3 gate driver

VGG2

gate driver supply 2[2]

phase 4 gate driver

GND

ground

SNH4

phase 4 sense high

SNL4

ph3ase 4 sense low

SDI

SPI data input

SCLK

SPI clock

CSB

SPI chip select

enable signal

VCC

external 5 V supply

SDO

SPI data output

GND

chip ground

Table 2.

Pin description[1] …continued

Symbol

Description

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