PT8A3514A Datasheet, PDF (1/8 Pages) Pericom Semiconductor Corporation – Smart Iron Controller

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PT8A3514/15/16/17/18/19(A/B)
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Smart Iron Controller
Features
Description
 Build in RC oscillator for sensor signal detection
 On chip shunt regulated power supply
 Using AC 60Hz/50Hz as timer clock can select by
Part No.
 Accurate timer with error dropping in ±1%
 Sensitive movement detection
 Powerful immunity of sensor Vibration
 30s time out for IRON in static horizontal position
 8min/10min/15min time out for IRON in static
vertical position
 LED to indicate operation status
 Usable in both 120V and 240V voltage supply
system
 Quick function test mode
 Support buzzer
 Few external components
 System standby mode power dissipation less than
1W (Base on recommended application circuits)
 DIP-8 and SOIC-8 package
 Patent No: ZL 2005 2 0048330.4
Applications
The PT8A3514/15/16/17/18/19(A/B) are high
performance low power and low cost CMOS chips
designed for intelligent electric IRON controller. Their
intelligence mainly results from their sensitive detection
to the movement and static position of electric iron by
using a special sensor. With the sensor, these chips can
detect the vertical/horizontal position and movement
status of IRON.
These chips are equipped with on-chip shunt
regulator, sensor signal processor, build-in oscillator,
timer, logic control, power on reset and output driving
block etc.
Pin Assignment
DISC/BUZ 1
RELAY 2
LED 3
GND 4
8 VCC
7 ACCLK
6 SW
5 TEST
 Electric Iron Controller
Fig1 PT8A351x pin assigment
Pad Description
Pin No. Pin Name I/O
Description
Discharge the external electrolytic cap to stabilize and limit its voltage. Output 4KHz to
1
DISC/BUZ O
driver buzzer when timer is out. Active high.
2
RELAY
O Relay drive output, active high.
With open drain output, it can shut off external LED in parallel with this open-drain
3
LED
O
transistor, active low.
4
GND
- Ground.
5
TEST
I Low for test mode*.
6
SW
I Sensor signal input, input high will be considered horizontal.
7
ACCLK
I AC 60/50Hz signal for clock with Schmitt architecture, internal drop down.
8
VCC
- Power supply.
*Note: Teat mode comparison table:
Real timer
Test timer
30s
8m
10m
15m
3s
9.6s
9.6s
12s
12-07-0006
PT0259-3 07/06/12
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