MAX17006A 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX17006A

1.2MHz, Low-Cost, High-Performance Chargers

Maxim Integrated 

1.2MHz, Low-Cost,

High-Performance Chargers

ADAPTER

N3

R9

2MΩ

RACIN1

N4

BATT

LDO

RACIN2

R1

22.6kΩ

R2

R3

PWM SIGNAL

C6

1μF

R4

200kΩ

RS1

Q1a

15mΩ

C7

CIN

0.1μF

10kΩ

DCIN

ACIN

ACOK

IINP

C2

0.1μF

VAA

C3

1μF

AGND

VCTL

ISET

CSSP

MAX17005A

MAX17006A

MAX17015A

CSSN BST

DHI

LX

DLO

PGND

CSIP

CSIN

D1

C4

0.68μF

BATT

R5

3kΩ

CC

C5

0.01μF

LDO

C1

4.7μF

SYSTEM LOAD

Q1b

ADAPTER

R6

200kΩ

CIN = 2 x 4.7μF

N1 COUT = 4.7μF

L1 = 2μH

N2

L1

RS2

10mΩ

COUT

R7

R8

ONLY FOR MAX17015A

BATTERY

Figure 1. Typical Operating Circuit

Detailed Description

The MAX17005A/MAX17006A/MAX17015A include all

the functions necessary to charge Li+, NiMH, and NiCd

batteries. An all n-channel synchronous-rectified step-

down DC-DC converter is used to implement a preci-

sion constant-current, constant-voltage charger. The

charge current and input current-limit sense amplifiers

have low-input offset errors (250μV typ), allowing the

use of small-valued sense resistors.

The MAX17005A/MAX17006A/MAX17015A use a new

thermally optimized high-frequency architecture. With this

new architecture, the switching frequency is adjusted to

control the power dissipation in the high-side

MOSFET. Benefits of the new architecture include:

reduced output capacitance and inductance, resulting in

smaller printed-circuit board (PCB) area and lower cost.

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