ASL4501SHN datasheet(3/43 Pages) NXP

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ASL4501SHN

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Product data sheet

Rev. 2 — 10 January 2018

3 of 43

NXP Semiconductors

ASL4501SHN

Four-phase boost converter

Ordering information

Block diagram

Table 1.

Ordering information

Type number

Package

Name

Description

Version

ASL4501SHN

HVQFN32

plastic thermal enhanced very thin quad flat package; no leads; 32 terminals;

body 5

 5  0.85 mm

SOT617-12

Fig 1.

Block diagram

aaa-015300

GND

SDI

MISC, MTP

OSCILLATOR

POR

VDDA

VDDD

VGG

VCC

FB2

FB1

SPI INTERFACE

DIGITAL

CONTROL

LOGIC

PHASE CONTROL LOGIC

VGG2

VGG1

VBAT

UVOV

PHASE 1

GATE DRIVER

Phase 1

Signal

Phase 2

Signal

Phase 3

Signal

Phase 4

Signal

DIFF AMP, COMPARATOR

AND FEEDBACK CONTROL

SCHEME PHASE 1

PHASE 2

GATE DRIVER

DIFF AMP, COMPARATOR

AND FEEDBACK CONTROL

SCHEME PHASE 2

PHASE 3

GATE DRIVER

DIFF AMP, COMPARATOR

AND FEEDBACK CONTROL

SCHEME PHASE 3

PHASE 4

GATE DRIVER

DIFF AMP, COMPARATOR

AND FEEDBACK CONTROL

SCHEME PHASE 4

CSB

SCLK

SDO

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