Rainbow-electronics MAX1567 Manual de usuario descargar pdf (Pagina 18)

MAX1566/MAX1567

Six-Channel, High-Efficiency, Digital

Camera Power Supplies

18 ______________________________________________________________________________________

+3.3V

200mA

+1.8V

200mA

+5V

100mA

BATT

DL1

FB1

DL2

FB2

FB3L

PVM

LXM

FBM

PVSD

LXSD

FBSD

REF

OSC

ONSD

ON1

ON3 (LED)

ON2

CCSU

CCSD

CCM

CC3

CC1

CC2

PGSD

CURRENT-

MODE

STEP-

DOWN

PWM

CURRENT-

MODE UP

OR DOWN

PWM

PVSU

LXSU

FBSU

CURRENT-

MODE

STEP-UP

PWM

PGSU

PGM

OUTSU

SUSD

FB3H

DL3

OUTSU

SCF

AUX1

PWM

AUX2

INVERTING

PWM

AUX3

PWM

PWR ON

OR FAULT

INDL2

GND

ONSU

10µH

1.4µH

D2–D5

LEDS

-7.5V

40mA

TO REF

BATT

15V

20mA

TO V

BATT

2 AA OR Li+

1.5V TO

4.2V

C15

10µF

C16

10µF

1µF

90.9kΩ

1MΩ

10Ω

0.1µF

47kΩ

100pF

C14

22µF

R19

40.2kΩ

R20

90.9kΩ

C13

10µF

C12

22µF

C11

10µF

R17

150kΩ

R18

90.9kΩ

4.7µH

C10

47µF

R15

274kΩ

R16

90.9kΩ

22µH

C17

1µF

R14

90.9kΩ

R13

549kΩ

R11

1MΩ

R12

90.9kΩ

C18

1µF

1.2µH

R10

ONM

MAX1567

AUX1OK

SDOK

Figure 3. Li+ or Multibattery Input (This power supply accepts inputs from 1.5V to 4.2V, so it can operate from either 2 AA cells or 1

Li+ cell. The 3.3V logic supply and the 1.8V core supply are both stepped down from 5V for true boost-buck operation.)

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Rainbow-electronics MAX1567 Manual de usuario Pagina 18

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