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| 型号： | MAX7307ALB+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 10-UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | PWM |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 1.62 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN |
| 供应商设备封装： | 10-uDFN（2x2） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
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
P4
P4
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.
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