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參數(shù)資料
| 型號(hào)： | MAX4625 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 1з, Low-Voltage, Single-Supply SPDT Analog Switches |
| 中文描述： | 1Ω、低電壓、單電源、SPDT模擬開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 6/12頁(yè) |
| 文件大?。?/td> | 169K |
| 代理商： | MAX4625 |
M
1
, Low-Voltage, Single-Supply
SPDT Analog Switches
6
_______________________________________________________________________________________
Pin Description
Detailed Description
The MAX4624/MAX4625 are low-on-resistance (R
ON
),
low-voltage, single-pole/double-throw (SPDT) analog
switches that operate from a +1.8V to +5.5V supply.
The MAX4624 has break-before-make switching, and
the MAX4625 has make-before-break switching. These
devices also have fast switching speeds (t
ON
= 50ns
max, t
OFF
= 50ns max).
When powered from a +5V supply, their 1
max R
ON
allows high continuous currents to be switched in a
variety of applications. In an overcurrent condition,
these switches provide both current-limit and thermal-
shutdown protection.
Current-Limit Protection
The MAX4624/MAX4625 feature current-limit protection
circuitry. When the voltage drop across the on switch
reaches 0.6V typ, the internal circuitry activates. The
current limit is not instantaneous, but rather integrates
over time, so current limiting will not activate when the
switch output charges a small 0.1μF capacitor. For sus-
tained overload conditions, the switch turns off (opens).
The switch turns on after 5ms. If the overload persists,
the switch cycles off and on to produce a pulsed out-
put. A direct short circuit will be detected immediately,
and the switch will pulse on for 1μs, then remain off for
5ms.
Applications Information
Logic Inputs
The MAX4624/MAX4625 logic inputs can be driven up
to +5.5V regardless of the supply voltage. For example,
with a +3.3V supply, IN may be driven low to 0V and
high to 5.5V. Driving IN Rail-to-Rail
minimizes power
consumption.
Analog Signal Levels
Analog signals that range over the entire supply voltage
(V+ to GND) can be passed with very little change in
on-resistance (see
Typical Operating Characteristics
).
The switches are bidirectional, so the NO, NC, and
COM pins can be used as either inputs or outputs.
Power-Supply Sequencing and
Overvoltage Protection
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to the devices.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals, especially if the analog signal is not
current limited. If this sequencing is not possible, and if
the analog inputs are not current limited to <20mA, add
Analog Switch—Common
COM
5
Analog Switch—Normally Open
NO
6
Analog Switch—Normally Closed
NC
4
Ground
GND
3
PIN
Positive Supply Voltage Input
V+
2
Digital Control Input
IN
1
FUNCTION
NAME
POSITIVE SUPPLY
COM
NO
D2
D1
GND
Vg
V+
MAX4624
MAX4625
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4624-MAX4625 | 1з, Low-Voltage, Single-Supply SPDT Analog Switches |
| MAX4624EUT-T | 1з, Low-Voltage, Single-Supply SPDT Analog Switches |
| MAX4625EUT-T | 1з, Low-Voltage, Single-Supply SPDT Analog Switches |
| MAX4631 | Fault-Protected, High-Voltage, Dual Analog Switches |
| MAX4631CPE | Fault-Protected, High-Voltage, Dual Analog Switches |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4625EUT | 制造商:Maxim Integrated Products 功能描述:1OHM LOW-VOLTAGE SINGLE-SUPPLY SP - Rail/Tube |
| MAX4625EUT+ | 制造商:Maxim Integrated Products 功能描述:ANLG SW SGL SPDT 5.5V 6PIN SOT-23 - Rail/Tube |
| MAX4625EUT+T | 功能描述:模擬開(kāi)關(guān) IC 1Ohm Low-V SPDT Analog Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| MAX4625EUT-T | 功能描述:模擬開(kāi)關(guān) IC 1Ohm Low-V SPDT Analog Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| MAX4625EZT | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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