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参数资料
| 型号： | MAX7302ATE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/30页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 9 |
| 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： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
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SMBus/I 2 C Interfaced 9-Port,
Level-Translating GPIO and LED Driver with CLA
PORT_ [5]
5-BIT PWM
PORT_ [4:0]
0
I/O
CLOCK
3-BIT PRESCALER
CONFIG26 [4:2]
4-BIT BLINK
PORT_ [3:0]
1
Figure 2. Output Port Structure
SELECT
INPUT
OUTPUT
V+
P1
V LA
PORT P1
SELECT
INPUT
OUTPUT
V+
P2–P9
V LA
PORT
P2–P9
Figure 3. Port I/O Structure
Ports P2–P9 are overvoltage protected to V LA . This is true
even for a port used as an input with a V DD port logic-
input threshold. Port P1 is overvoltage protected to 5.5V,
independent of V DD and V LA (see Figure 3). To mix logic
outputs with more than one voltage swing on a group of
ports using the same port supply, set the port supply volt-
age (V LA ) to be the highest output voltage. Use push-pull
outputs and port P1 for the highest voltage ports, and use
open-drain outputs with external pullup resistors for the
lower voltage ports. When P2–P9 are acting as inputs ref-
erenced to V DD , make sure the V LA voltage is greater
than V DD - 0.3V.
Port Lock Registers
Use the port lock registers to lock any combination of
port I/O register functionality (see Table 8). The port
lock registers are unlocked on power-up or by configur-
ing the RSTPOR bit to reset to POR value. The bits in
the port lock register can only be written to once. After
setting a bit to logic-high, the bit can only be cleared
by powering off the device.
When a bit position in the port lock register is set, the
corresponding port I/O registers cannot change. When a
port I/O register is locked as an output, none of its output
register settings can change. When a port I/O register is
locked as an input, only bits D0 and D1 can change, and
the locked input behaviour options, such as debounce
and transition detection, operate as normal.
Input Debounce
The MAX7302 samples the input ports every 31ms if
input debouncing is enabled for an input port (D2 = 1
of the port I/O register). The MAX7302 compares each
new sample with the previous sample. If the new sam-
ple and the previous sample have the same value, the
corresponding internal register updates.
When the port input is read through the serial interface,
the MAX7302 does not return the instantaneous value
of the logic level from the port because debounce is
active. Instead, the MAX7302 returns the stored
debounced input signal.
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7302EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX7302 EVAL KIT - Boxed Product (Development Kits) |
| MAX7304 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C-Interfaced 16-Port, Level-Translating GPIO and LED Driver with High Level of Integrated |
| MAX7304_12 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C-Interfaced 16-Port,Level-Translating GPIO and LED Driver |
| MAX7304ATG+ | 制造商:Maxim Integrated Products 功能描述:IC-INTERFACED 16-PORT, LEVEL-TRANSLATING GPIO AND LED DRIVER - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC LED DRVR LINEAR 24TQFN |
| MAX7304ATG+T | 制造商:Maxim Integrated Products 功能描述:IC-INTERFACED 16-PORT, LEVEL-TRANSLATING GPIO AND LED DRIVER - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LED DRVR LINEAR 24TQFN |
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