ADP3212MNR2G(OLD) Просмотр технического описания (PDF) - ON Semiconductor

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ADP3212MNR2G
(Rev.:OLD)

7-Bit, Programmable, 3-Phase, Mobile CPU Synchronous Buck Controller

ON Semiconductor 

ADP3212/NCP3218

FUNCTIONAL BLOCK DIAGRAM

GND

VCC EN RPM RT RAMP VARFREQ

TRDET

COMP

FB

LLINE

SWFB1

TRDET

Generator

UVLO

Shutdown

and Bias

Oscillator

+Σ

REF +

VEA

-

+

CSREF

+Σ _

1.55V

Current

Balancing

Circuit

OVP

Driver

Logic

BST1

DRVH1

SW1

PVCC

DRVL1

PGND

BST2

DRVH2

SWFB2

SW2

SWFB3

PH0

PH1

DAC + 200mV

-

CSREF

+

PWRGD

-

+

DAC - 300mV

PWRGD

Open

Drain

CLKEN

FBRTN

CLKEN

Open

Drain

Precision

Reference

Number of

Phases

OCP

Shutdown

Delay

PWRGD

Start Up

Delay

CLKEN

Start Up

Delay

Current

Limit

Circuit

Soft

Transient

Delay

Delay

Disable

PVCC

PGND

DRVL2

OD3

PWM3

PSI and

DPRSLP

Logic

Current

Monitor

+

-

Thermal

Throttle

Control

PSI

DPRSLP

IMON

CSREF

CSSUM

CSCOMP

ILIM

TTSENSE

VRTT

VID

DAC

DAC

REF

Soft Start

Figure 1.

Rev. SpA | Page 2 of 43

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