参数资料
| 型号： | MAX1694EUB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/9页 |
| 文件大小： | 0K |
| 描述： | IC USB SWITCH 1X1 10UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | USB 开关 |
| 电路： | 1 x 1:1 |
| 导通状态电阻： | 90 毫欧 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 25µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 管件 |
MAX1693/(MAX1693H)/MAX1694
USB Current-Limited Switches
with Fault Blanking
_______________________________________________________________________________________
7
_______________Detailed Description
The MAX1693/(MAX1693H)/MAX1694 P-channel MOS-
FET power switches limit output current to 0.7A min to
1.0A max. When the output current is increased
beyond the current limit (ILIMIT), the current also
increases through the replica switch (IOUT/6500). The
current-limit error amplifier compares the voltage to the
internal 1.24V reference and regulates the current back
to the ILIMIT.
These switches are not bidirectional; therefore, the
input voltage must be higher than the output voltage.
Continuous Short-Circuit Protection
The MAX1693/(MAX1693H)/MAX1694 are foldback
short circuit-protected switches. In the event of an out-
put short-circuit or current-overload condition, the cur-
rent through the switch is foldback-current limited to
500mA continuous for the MAX1693. For the MAX1694,
if the short circuit lasts longer than 10ms, the switch is
latched off.
Thermal Shutdown
The MAX1693/(MAX1693H)/MAX1694 feature thermal
shutdown. The switch turns off and the FAULT output
goes low immediately (no fault blanking) when the junc-
tion temperature exceeds +165°C. The MAX1694
remains latched with the switch off and the FAULT out-
put low. When the MAX1693/(MAX1693H) cools 20°C,
the switch turns back on. If the fault short-circuit condi-
tion is not removed, the switch will cycle on and off,
resulting in a pulsed output.
FAULT Indicator
The MAX1693/(MAX1693H)/MAX1694 provide a fault
output (FAULT). A 100k
pullup resistor from FAULT to
IN provides a logic control signal. This open-drain out-
put goes low when any of the following conditions
occur:
The input voltage is below the undervoltage-lockout
(UVLO) threshold.
The die temperature exceeds the thermal shutdown
temperature limit of +165°C.
The device is in current limit and the 10ms fault-
blanking period is exceeded.
Pin Description
NAME
FUNCTION
1, 3, 9
IN
Input. P-channel MOSFET source. Connect all IN pins together and bypass with a 1F
ceramic capacitor to ground.
PIN
2, 4, 8, 10
OUT
Switch Output. P-channel MOSFET drain. Connect all OUT pins together and bypass with a
0.1F capacitor to ground.
5
ON (ON)
Active-Low (High) Switch On Input. A logic low (high) turns the switch on.
6
GND
Ground
7
FAULT
Fault-Indicator Output. This open-drain output goes low when the device is in thermal shut-
down, undervoltage lockout, or on a sustained (>10ms) current-limit condition. For the
MAX1694 only, this output latches low when asserted, and the power switch is turned off
until the latch is reset.
MAX1693
(MAX1693H)
P
OUT
GND
1.24V
N
FAULT
ON
CURRENT-LIMIT
AMPLIFIER
REPLICA
AMPLIFIER
ON
HOT
IN
CONTROL
CIRCUITRY
10ms
TIMER
(ON)
Figure 1. MAX1693 Functional Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1694EUB+ | 功能描述:电源开关 IC - USB USB Current-Limited Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1694EUB+T | 功能描述:电源开关 IC - USB USB Current-Limited Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1694EUB-T | 功能描述:电源开关 IC - USB USB Current-Limited Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1694EUB-TG069 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX16950AAUE/V+ | 功能描述:DC/DC 开关控制器 2MHz Step-Down Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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