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参数资料
| 型号： | MAX7314ATG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/25页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 接口： | I²C |
| 输入/输出数： | 18 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
MAX7314
Driving Load Currents Higher than 50mA
The MAX7314 can be used to drive loads drawing more
than 50mA, like relays and high-current white LEDs, by
paralleling outputs. Use at least one output per 50mA of
load current; for example, a 5V 330mW relay draws
66mA and needs two paralleled outputs to drive it.
Ensure that the paralleled outputs chosen are controlled
by the same blink phase register, i.e., select outputs
from the P0 through P7 range, or the P8 through P15
range. This way, the paralleled outputs are turned on
and off together. Do not use output O16 as part of a
load-sharing design. O16 cannot be switched at the
same time as any of the other outputs because it is con-
trolled by a different register.
The MAX7314 must be protected from the negative
voltage transient generated when switching off induc-
tive loads, such as relays, by connecting a reverse-
biased diode across the inductive load (Figure 19). The
peak current through the diode is the inductive load’s
operating current.
Power-Supply Considerations
The MAX7314 operates with a power-supply voltage of
2V to 3.6V. Bypass the power supply to GND with at
least 0.047F as close to the device as possible. For
the QFN version, connect the underside exposed pad
to GND.
18-Port GPIO with LED Intensity Control,
Interrupt, and Hot-Insertion Protection
22
______________________________________________________________________________________
Table 14. Output Intensity Registers (continued)
REGISTER DATA
REGISTER
ADDRESS
CODE
(hex)
D7
D6
D5
D4
D3
D2
D1
D0
MSB
LSB
MSB
LSB
OUTPUTS P9, P8 INTENSITY
R/
W
OUTPUT P9 INTENSITY
OUTPUT P8 INTENSITY
Write output P9, P8 intensity
0
Read back output P9, P8 intensity
1
0x14
P9I3
P9I2
P9I1
P9I0
P8I3
P8I2
P8I1
P8I0
MSB
LSB
MSB
LSB
OUTPUTS P11, P10 INTENSITY
OUTPUT P11 INTENSITY
OUTPUT P10 INTENSITY
Write output P11, P10 intensity
0
Read back output P11, P10 intensity
1
0x15
P11I3
P11I2
P11I1
P11I0
P10I3
P10I2
P10I1
P10I0
MSB
LSB
MSB
LSB
OUTPUTS P13, P12 INTENSITY
OUTPUT P13 INTENSITY
OUTPUT P12 INTENSITY
Write output P13, P12 intensity
0
Read back output P13, P12 intensity
1
0x16
P13I3
P13I2
P13I1
P13I0
P12I3
P12I2
P12I1
P12I0
MSB
LSB
MSB
LSB
OUTPUTS P15, P14 INTENSITY
OUTPUT P15 INTENSITY
OUTPUT P14 INTENSITY
Write output P15, P14 intensity
0
Read back output P15, P14 intensity
1
0x17
P15I3
P15I2
P15I1
P15I0
P14I3
P14I2
P14I1
P14I0
OUTPUT O16 INTENSITY
See master, O16 intensity register (Table 13).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7314ATG+ | 功能描述:外围驱动器与原件 - PCI 18-Port GPIO RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX7314ATG+T | 功能描述:接口-I/O扩展器 18-Port GPIO RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| MAX7314ATG-T | 功能描述:外围驱动器与原件 - PCI RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX7314EVKIT+ | 功能描述:外围驱动器与原件 - PCI Evaluation Kit for the MAX7314 RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| MAX7315 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:8-Port I/O Expander with LED Intensity Control and Interrupt |
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