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| 型号： | MAX4632ESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPDT 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 开关 |
| 电路： | 2 x SPDT |
| 导通状态电阻： | 85 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 9 V ~ 36 V，±4.5 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
MAX4631/MAX4632/MAX4633
Fault-Protected, High-Voltage,
Dual Analog Switches
10
______________________________________________________________________________________
Transient Fault Response and Recovery
When a fast rising and falling transient on NO_ (or NC_)
exceeds V+ or V-, the output (COM_) follows the input
(IN_) to the supply rail with only a few nanoseconds of
delay. This delay is due to the switch on-resistance and
circuit capacitance to ground. However, when the input
transient returns to within the supply rails, there is a
longer output recovery time delay. For positive and
negative faults, the recovery time is typically 2.5s.
These values depend on the COM_ output resistance
and capacitance, and are not production tested or
guaranteed. The delays are not dependent on the fault
amplitude. Higher COM_ output resistance and capaci-
tance increase recovery times.
Fault-Protection Voltage and Power Off
The maximum fault voltage on the NO_ (or NC_) pins is
±40V when the power is off. For the MAX4631/
MAX4633, with ±15V supplies, the highest voltage on
NO_ (or NC_) can be +36V, and the lowest voltage on
NO (or NC_) can be -36V. For the MAX4632, with ±15V
supplies, the highest voltage on NO_ (or NC_) can be
+25V, and the lowest voltage on NO_ (or NC_) can be
-25V. Exceeding these limits can damage the device.
IN_ Logic-Level Thresholds
The logic-level thresholds are TTL/CMOS compatible
when V+ is +15V. Raising V+ increases the threshold
slightly; when V+ reaches +25V, the level threshold is
about 2.8V—higher than the TTL output high-level mini-
mum of 2.4V, but still compatible with CMOS outputs
(see
Typical Operating Characteristics).
Increasing V- has no effect on the logic-level thresh-
olds, but it does increase the gate-drive voltage to the
signal FETs, reducing their on-resistance.
Failure Modes
The MAX4631/MAX4632/MAX4633 are not lightning
arrestors or surge protectors. Exceeding the fault-pro-
tection voltage limits on NO_ or NC_, even for very short
periods, can cause the device to fail. The failure modes
may not be obvious, and failure in one switch may or
may not affect other switches in the same package.
__________Applications Information
Ground
There is no connection between the analog signal
paths and GND. The analog signal paths consist of an
N-channel and a P-channel MOSFET with their sources
and drains paralleled and their gates driven out of
phase to V+ and V- by the logic-level translators.
V+ and GND power the internal logic and logic-level
translators and set the input logic thresholds. The logic-
level translators convert the logic levels to switched V+
and V- signals to drive the analog switch gates. This
drive signal is the only connection between the power
supplies and the analog signals. GND, IN_, and COM_
have ESD-protection diodes to V+ and V-.
Supply-Current Reduction
When the logic signals are driven rail-to-rail from 0 to
+12V or -15V to +15V, the supply current reduces to
approximately half of the supply current when the logic
input levels are at 0 to +5V.
Power Supplies
The MAX4631/MAX4632/MAX4633 operate with bipolar
supplies between ±4.5V and ±18V. The V+ and V- sup-
plies need not be symmetrical, but their difference can
not exceed the absolute maximum rating of +44V.
These devices operate from a single supply between
+9V and +36V when V- is connected to GND.
INPUT
RANGE
On
Between Rails
POWER
SUPPLIES
(V+, V-)
NC_
On
NO_
Off
OUTPUT
NC_
On
Between Rails
Off
On
NO_
On
Between V+ and (+40V - V+)
On
Off
V+
On
Between V+ and (+40V - V+)
Off
On
V+
On
Between V- and (-40V - V-)
On
Off
V-
On
Between V+ and (-40V - V-)
Off
On
V-
Off
Between Rails
Off
Follows the load
terminal voltage
Table 1. Switch States in Normal and Fault Conditions
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相关代理商/技术参数 |
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| MAX4633CPE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4633CSE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4633CSE+ | 功能描述:模拟开关 IC Fault-Protected Dual Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4633CSE+T | 功能描述:模拟开关 IC Fault-Protected Dual Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4633CSE-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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