参数资料
| 型号： | MAX13362ATL/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/14页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 1X2 40TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | 4000 |
24-Channel Automotive Switch Monitor
IE_: Interrupt Enable
The IE_ bit programs the switch input channel, IN_, to
be interrupt-enabled or interrupt-disabled (0 = interrupt
disabled, 1 = interrupt enabled). The default value after
power-on is 0.
W_.0 and W_.1: Wetting Current
W_.0 and W_.1 bits set the corresponding switch
channel-wetting current as shown in Table 5.
Table 5. Wetting Current Setting
switches for a preset duration to reduce the power con-
sumption. In shutdown mode, all switch inputs are high
impedance and all circuitry is shutdown.
Continuous Mode Operation (P0–P3 = 0)
In continuous mode, reading of the switch status is initi-
ated by a falling edge on CS . The microcontroller initi-
ates a low pulse on CS to update the MAX13362 switch
status register. If INT remains high, no action needs be
taken by the microcontroller. If INT goes low, the micro-
controller may perform a read operation to read the
W_.1
0
0
1
1
W_.0
0
1
0
1
WETTING CURRENT (mA)
0*
5
10
15
updated switch status. On the rising edge of CS , INT is
updated. To get correct data, the microcontroller must
wait 10μs before initiating a switch status read opera-
tion. (See Figure 4.)
*Default POR value.
CS
LP : Low Quiescent Current Bit
In polling mode, when LP is set to 0, the IC is operating
with the lowest quiescent current. The channels that are
INT
SWITCH
STATUS
CHANGE
INT UPDATED, PERFORM READ OPERATION
not enabled to interrupt have their wetting current dis-
abled and are not monitored. The first pulse of wetting
current after the switch is closed and sampled is 5mA
unless the wetting current for that channel is set to
0mA. The default value of LP after power-on is 0. When
LP is 1, all channels are monitored and the wetting cur-
rent for each channel is set to the value determined by
W_.0 and W_.1. If the MAX13362 is in continuous
mode, LP is ignored.
Operating Modes
The MAX13362 features three modes of operation: con-
tinuous mode, polling mode, and shutdown mode. In
continuous mode, the wetting currents (if enabled) are
continuously applied to the closed switches. In polling
mode, the wetting currents are applied to the closed
Figure 4. Continuous Mode Operation
Polling-Mode Operation
In polling mode (see Figure 5), each switch input is
sampled for a programmable polling active time set by
the PA0–PA2 bits between 64μs and 4ms (see Table 4).
Sampling is repeated at a period set by the P0–P3 bits
(from 4ms to continuous, see Table 3). All switch inputs
are sampled simultaneously at the end of the polling
active time. Wetting currents (if enabled) are applied to
closed switches during the polling active time.
Therefore, the polling mode reduces the current con-
sumption from the VS power supply to some value
dependent on the polling time chosen.
POLLING TIME
POLLING ACTIVE TIME
SWITCH
POSITION
SAMPLED
GROUND-CONNECTED
POLLING
ACTIVE TIME
SWITCH
POSITION
SAMPLED
SWITCH-INPUT
INT
SWITCH OPEN
Figure 5. Switch Sampling in Polling Mode
12
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相关代理商/技术参数 |
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| MAX13362EVKIT+ | 功能描述:界面开发工具 Evaluation Kit for the MAX13362 RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| MAX13366GTE/V+ | 功能描述:板机接口霍耳效应/磁性传感器 Auto Quad 2-Wire Hall Effect Sw Int RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23 |
| MAX13366GTE/V+T | 功能描述:板机接口霍耳效应/磁性传感器 Auto Quad 2-Wire Hall Effect Sw Int RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23 |
| MAX1338ETN | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1338ETN+ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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