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AFE3010

更新时间： 2024-09-19 11:09:51
品牌 Logo 应用领域
德州仪器 - TI 断路器
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34页 1439K
描述
具有自检和中性点接地故障检测功能的接地故障断路器 (GFCI)

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AFE3010 数据手册

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AFE3010  
SBFS042 –JUNE 2020  
AFE3010 Ground Fault Circuit Interrupter (GFCI) With Self-Test and Neutral-Ground Fault  
Detection  
1 Features  
3 Description  
The AFE3010 is a precision, low-power, Ground Fault  
Circuit Interrupter (GFCI) controller used for detecting  
ground fault leakage paths in electrical circuits. This  
device is a single IC solution that continuously  
monitors an electrical circuit for multiple fault  
conditions to verify that the system is operating  
correctly.  
1
•
Single-chip GFCI controller to aid in the design of  
UL-943 compliant systems  
–
–
–
Built-in self-test to detect end-of-life, blink the  
LED, and/ or trip the load switch  
Detect ground fault leakage path, and trip the  
load switch  
Detect neutral-ground leakage path, and trip  
the load switch  
In addition to a ground fault leakage detection, the  
AFE3010 can detect a grounded neutral condition  
which can also lead to a harmful shock from a  
•
•
•
•
Protection against single-component failure  
Dual VDD and GND pins for redundancy  
Integrated noise filter to prevent false trips  
connected appliance. The device implements  
a
unique closed-loop grounded neutral detection  
scheme that eliminates the need for component  
resonance tuning, resulting in optimized system  
development time. Periodic self-test is performed  
once in every 180 cycles of the AC power line to  
ensure all the components related to ground fault  
control system are working properly. In case of any  
component failure the device enables an LED light,  
and/ or trips a solenoid to open the load switch. In  
applications where an LED light indicator is not  
needed, the ALARM pin can be configured as a  
secondary SCR driver to drive an additional solenoid  
for redundancy purpose.  
Simultaneously protects against HOT to GND and  
neutral to GND faults  
•
•
Adjustable fault current thresholds through  
external feedback resistors  
Fast response time  
–
–
–
–
150 ms for ±5mA ground fault current  
85 ms for ±10-mA ground fault current  
40 ms for ±30-mA ground fault current  
10 ms for ±50-mA ground fault current  
•
Onboard shunt regulator powers the system  
through passives  
The AFE3010 integrates shunt and LDO regulators to  
directly power from an AC line through a diode bridge  
and passive components.  
•
•
Supports 120-V/ 60-Hz or 220-V/ 50-Hz systems  
Operating temperature range: –40 ºC to 105 ºC  
The AFE3010 offers flexible configurable options to  
implement robust application specific protection  
schemes in different end-equipments such as  
electrical receptacles, circuit breakers, and so forth.  
2 Applications  
•
•
•
•
•
GFCI Outlet Receptacles  
GFCI Circuit Breakers  
Power Cord (In-Line GFCI)  
Hair Dryer  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
AFE3010  
VQFN (16)  
3.00 mm × 3.00 mm  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Dish Washer  
GFCI Application  
HOT  
200:1  
1000:1  
NEUTRAL  
LOAD  
SWITCH  
Solenoid  
C3  
C2  
R5  
R8  
R6  
D2  
R7  
C4  
Q1  
R1  
R2  
C5  
C6  
NG_OUT  
VDD1  
OUT FB  
REF  
R3  
R4  
FT  
PTT  
AFE3010  
VDD2  
C7  
C1  
SEL  
PH  
SW_OPEN  
C9  
GND  
SCR  
SCR_TST  
ALARM  
R9  
SCR  
C8  
C10  
R10  
LOAD  
R11  
R12  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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