MAX1647 Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

MAX1647

Chemistry-Independent Battery Chargers

Maxim Integrated 

Table 1b. Component Suppliers

MANUFACTURER

AVX

Central Semiconductor

Coilcraft

Coiltronics

Dale

IR

IRC

NIEC

Siliconix

Sprague

Sumida

Zetex

PHONE

(803) 946-0690

(516) 435-1110

(847) 639-6400

(561) 241-7876

(605) 668-4131

(310) 322-3331

(512) 992-7900

(805) 867-2555

(408) 988-8000

(603) 224-1961

(847) 956-0666

(516) 543-7100

FAX

(803) 626-3123

(516) 435-1824

(847) 639-1469

(561) 241-9339

(605) 665-1627

(310) 322-3332

(512) 992-3377

(805) 867-2698

(408) 970-3950

(603) 224-1430

(847) 956-0702

(516) 864-7630

Chemistry-Independent

Battery Chargers

_______________Detailed Description

Output Characteristics

The MAX1647/MAX1648 contain both a voltage-

regulation loop and a current-regulation loop. Both

loops operate independently of each other. The volt-

age-regulation loop monitors BATT to ensure that its

voltage never exceeds the voltage set point (V0). The

current-regulation loop monitors current delivered to

BATT to ensure that it never exceeds the current-limit

set point (I0). The current-regulation loop is in control

as long as BATT voltage is below V0. When BATT volt-

age reaches V0, the current loop no longer regulates,

and the voltage-regulation loop takes over. Figure 5

shows the V-I characteristic at the BATT pin.

R3

R4

C3

R2

C2

R8

R9

R10

R11

C4

REF

VL

THM

MAX1648

CCI

DCIN

C6

DHI

BST

CCV

LX

DLO

PGND

CS

SETI

BATT

SETV

AGND

C5

R5

D2

M1

C7

M2

L1

D1

D4

DC SOURCE

7.5V–28V

D3

C1

T

R1

BATTERY

Figure 4. MAX1648 Typical Operating Circuit

______________________________________________________________________________________ 11

Share Link: