Rainbow-electronics MAX1567 Manuel d'utilisateur télécharger pdf (Page 19)

MAX1566/MAX1567

Six-Channel, High-Efficiency, Digital

Camera Power Supplies

______________________________________________________________________________________ 19

2.35V

ONSU

REF

ONSU

REFOK

DIE OVER

TEMP

FAULT

CLK

NORMAL

MODE

STARTUP

OSCILLATOR

INTERNAL

POWER-

100,000-

CLOCK-CYCLE

FAULT TIMER

REF

300ns

ONE-SHOT

SOFT-START

RAMP

GENERATOR

STEP-UP

SOFT-START TIMER

DONE

(SUSSD)

1.25V

REFERENCE

TO INTERNAL

POWER

OSC

CCSU

FBSU

REF

SOFT-START

RAMP

GENERATOR

CCSD

FBSD

ONSD

SUSSD

ON_

SUSSD

REF

SOFT-START

RAMP

GENERATOR

CC_

FB_

FAULT

CURRENT-

MODE

DC-TO-DC

STEP-DOWN

FAULT

1 OF 3

VOLTAGE-MODE

DC-TO-DC

CONTROLLERS

AUX_

PVSD

LXSD

REF

GND

PGND

SDOK

DL_

FLTALL

FAULT

CURRENT-

MODE

DC-TO-DC

STEP-UP

PVSU

LXSU

PGSU

ONSU

FLTALL

FAULT

CURRENT-

MODE

DC-TO-DC

STEP-DOWN

STEP-UP

PVM

SUSD

LXM

PGM

SOFT-START

RAMP

GENERATOR

FBM

TO V

REF

CLK

SUSSD

FLTALL

ONM

AUX1OK

MAX1566

Figure 4. MAX1566 Functional Diagram

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 34 35

MAX1566/MAX1567 1
Camera Power Supplies 1
Reference 26
Oscillator 26
Package Information 35

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Rainbow-electronics MAX1567 Manuel d'utilisateur Page 19

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