参数资料
型号: MAX1812EUB+T
厂商: Maxim Integrated Products
文件页数: 7/10页
文件大小: 0K
描述: IC SW USB DUAL W/FB 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: USB,外设
电流 - 电源: 45µA
电源电压: 4 V ~ 5.5 V
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: 带卷 (TR)
Dual USB Switch with Fault Blanking
IN_
FAULTA
ONA
4-MOS
Q-PMP
ILIM
BIAS
UVLO
THERMAL
SHUTDOWN
OUTA
1 μ F
4.0V TO 5.5V
IN_
REF
FAULT
LOGIC
GND
OSC
TIMER
0.1 μ F
25kHz
4-MOS
20ms
ILIM
OUTB
1 μ F
ONB
Q-PMP
IN_
MAX1812
FAULTB
Figure 1. Functional Diagram
FAULT_ goes low when any of the following conditions
occur:
? The input voltage is below the undervoltage-lockout
(UVLO) threshold.
? The switch junction temperature exceeds the thermal
shutdown temperature limit of +160 ° C.
? The switch is in current limit or short-circuit limit
mode and the fault-blanking period is exceeded.
The fault indicators have a latching delay to prevent
short FAULT_ pulses. After the fault-condition is
removed, the FAULT_ output will deassert after a 20ms
delay. Ensure that the MAX1812 has adequate input
bypass capacitance to prevent glitches from triggering
FAULT_ outputs. Input glitches greater than 0.2V/μS
may cause spurious FAULT_ transitions.
_______________________________________________________________________________________
7
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