MAX7307AUB+T【PDF 1/23 页】IC LED DRIVER LINEAR 10-UMAX

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录341

[1页]2页 3页 4页 5页

ATION

EVALU

AVAILA

19-0836; Rev 1; 8/10

KIT

BLE

SMBus/I 2 C Interfaced 4-Port, Level-Translating

GPIOs and LED Drivers

General Description

Features

The MAX7306/MAX7307

I 2 C-/SMBus ? -compatible,

seri-

? 1.4V to 5.5V I/O Level Translation Port Supply (V LA )

al-interfaced peripherals feature four level-translating

I/Os and operate from a 1.62V to 3.6V power supply.

The MAX7307 features a port supply (V LA ) that allows

level translation on I/O ports to operate from a separate

power supply from 1.4V to 5.5V. The MAX7306 features

an address select input (AD0) to allow up to four unique

slave addresses.

The MAX7306/MAX7307 ports P2, P3, and P4 can be

configured as inputs, push-pull outputs, and open-drain

outputs. Port P1 can be configured as a general-pur-

pose input, open-drain output, or an open-drain INT out-

put. Ports P2 and P3 can be configured as OSCIN and

OSCOUT, respectively. The MAX7306/MAX7307 include

an internal oscillator for PWM, blink, and key debounce,

or to cascade multiple MAX7306/MAX7307s. The exter-

nal clock can be used to set a specific PWM and blink

timing. The RST input asynchronously clears the 2-wire

interface and terminates a bus lockup involving the

MAX7306/MAX7307.

All ports configured as output feature 33-step PWM,

allowing any output to be set from fully off, 1/32 to 31/32

duty cycle, to fully on. All output ports also feature LED

blink control, allowing blink periods of 1/8 second, 1/4

second, 1/2 second, 1, 2, 4, or 8 seconds. Any port can

blink during this period with a 1/16 to 15/16 duty cycle.

The MAX7306/MAX7307 are specified over the -40°C to

+125°C temperature range and are available in 10-pin

μDFN (2mm x 2mm) and 10-pin μMAX ? packages.

Applications

? 1.62V to 3.6V Power Supply

? Four Individually Configurable GPIO Ports

P1 = Open-Drain I/O

P2, P3, P4 = Push-Pull or Open-Drain I/O

? Individual 33-Step PWM Intensity Control

? Blink Controls with 15 Steps on Outputs

? 1kHz PWM Period Provides Flicker-Free LED

Intensity Control

? 25mA (max) Port Output Sink Current (100mA

max Ground Current)

? Inputs Overvoltage Protected Up to 5.5V (V LA )

? Transition Detection with Optional Interrupt Output

? Optional Input Debouncing

? RST Input Clears Serial Interface, Can Restore

Power-Up Default State, and Synchronizes Blink

Timing

? Oscillator Input and Output Enables Cascading

Multiple Devices

? Low 0.75μA (typ) Standby Current

Ordering Information

PART TOP MARK PIN-PACKAGE

MAX7306 ALB+ AAL 10 μDFN (2mm x 2mm)

Note: All devices are specified over the -40°C to +125°C oper-

ating temperature range.

+ Denotes a lead(Pb)-free/RoHS-compliant package.

Ordering Information continued at end of data sheet.

Cell Phones

System I/O Ports

LCD/Keypad Backlights

LED Status Indicators

Pin Configurations appear at end of data sheet.

SMBus is a trademark of Intel Corp.

μMAX is a registered trademark of Maxim Integrated Products, Inc.

Typical Operating Circuit

μ C

+1.8V

V DD

V LA

+4.5V

μ C

V DD

+2.5V

SDA

SCL

RST

SDA

SCL

RST

MAX7307

P2/OSCIN

SDA

SCL

RST

SDA

SCL

RST

MAX7306

P2/OSCIN

INT

P1/INT

P3/OSCOUT

INT

P1/INT

P3/OSCOUT

GND

AD0

GND

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式