Datasheet

6
Operating voltage
Max
Vdd
4.0V
–
Min 2.3V
Current consumption
(in standby mode)
Note 1)
Ave Iw 1μA 2μA 6μA
Ambient temperature: 25
°C
Iout=0
Vdd: 3V
Output current
(during detection period)
Note 2)
Max Iout 100μA
Ambient temperature: 25
°C
VoutV⭌dd-0.5
Output voltage
(during detection period)
Min Vout Vdd·0.5V
Ambient temperature: 25
°C
Open at no detection
Circuit stability time
(when voltage is applied)
Ave
Twu
25 sec –
Ambient temperature: 25
°C
Iout=0
Vdd: 3V
Max 210 sec 10 sec, Note 3)
Power supply voltage
-0.3 to 4.5V
Ambient temperature
-20 to +60°C (No frost, no condensation)
Storage temperature
-20 to +70°C
Items Symbol 1μA type 2μA type 6μA type Conditions
Items Value
Characteristics
i Electrical Characteristics
i Maximum rated values
i 2μA / 6μA type i 1μA type
Timing chart
ON
OFF
ON
OFF
Twu
Detecting target
Power supply
Output voltage
Present
Absent
Present
Absent
Detecting target
ON
OFF
Power supply
Mode
ON
OFF
1
）
Sleep
2
）
Standby
3
）
Mask
Output voltage
Unstable 1
）
2
）
3
）
1
）
2
）
3
）
1
）
2
）
3
）
t1
（
Twu
）
t2
t2
t3
t2
t3
※
2
※
1
Note 1) The total current consumption is equal to the current consumption in standby mode (Iw) plus the output current during detection (Iout). For the 1μA type please note that the average current consumption
is 1μA in sleep mode and 1.9μA in standby mode. Please also refer to the timing chart.
Note 2) Please select an output resistors (pull-down concept) in accordance with Vout so that the output current is lower than or equal to 100μA. If the output current is more than 100μA, this may cause false
alarms.
Note 3) The sensor temperature has to be constant for the time specified.
[Explanation of modes]
1) Sleep mode: When the output is OFF. The electrical current consumption is around 1μA.
2) Standby mode: After the sensor's output has reached ON status, the sensor switches to standby mode. The
electrical current consumption gets close to 1.9μA. When the sensor's output returns to its OFF value
after the "hold time" has expired, the sensor switches again to sleep mode.
3) Mask mode: Time during which the output is forced to OFF status after the end of the standby mode.
(No detection is possible during this period.)
[Explanation of the timing]
t1 (Twu): Circuit stability time: about 25 sec (typ.)
While the circuitry is stabilizing after the power is turned on, the sensor output is not fixed in the ON
or OFF state. This is true regardless of whether or not the sensor has detected anything.
t2: Standby hold time: about 2.6 sec (typ.) after the last detection of a signal. (
L
1)
t3: Mask time: about 1.3 sec (typ.) During this stage, even if the sensor detects something, the output
will not switch to ON. (
L
2)
[Explanation of the timing]
Twu: Circuit stability time: about 25 sec (typ.) for 2μA type, max. 10 sec for 6μA type.
While the circuitry is stabilizing after the power is turned on, the sensor
output is not fixed in the ON or OFF state. This is true regardless of
whether or not the sensor has detected anything.
EKMB seriesEKMC seriesAMN series