PT8A2524 Datasheet, PDF (1/10 Pages) Pericom Semiconductor Corporation – Universal Timer Controller

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Features
● Auto-shut off output once time-out
● Button to ON/OFF/RESET timer
● Available timer with high precision same as AC
50/60hz
● Build-in RC oscillator
● Drive external RELAY
● Support 50/60Hz by part
● Quick Test Mode (QTM) for manufacturer
● Available timer of 15/30/45/60/90/120/240/480min
● Buzzer function(PT8A2524/25/34/35/44/45
Optional)
● Low cost lead free package: TO94-4 or DIP-8 or
SOIC-8
Pin Configuration
PT8A2524/5/6A-H
PT8A2534/5/6A-H
TO94-4(Top View)
PT8A2524-26/34-36/44-46
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Universal Timer Controller
Description
Universal timer is a mixed signal CMOS IC
designed for a fixed timer to drive external RELAY to
implement safety power control. It is applied to
120V/240V and 50/60Hz AC power supply. It can
automatically shut-off load in order to prevent undesired
conditions from the system. Internal timer can present
several kinds of different time: 15mins, 30mins, 45mins,
1hr, 1.5hrs, 2hrs, 4hrs and 8hrs, which is decided by part
number.
Applications
• Universal Timer Controller
PT8A2544/5/6
DIP-8 or SOIC-8
(Top View)
Pin Description
PT8A2524/5/6A-H, PT8A2534/5/6A-H
Pin Name
Pin No I/O
Pin Description
GND
1
- Ground
DISC
2
I/O Control output if discharging external capacitor and button input, high active
RELAY
3
I/O RELAY output and button input, high active
VCC
4
- Power supply
PT8A2544/5/6
Pin Name
Pin No.
I/O
Pin Description
TS2
1
I ^{Timer selection pins(TS2 TS1 TS0 from 000~111)}
TS1
2
I
000: 15m, 001: 30m, 010: 45m, 011: 60m,
100: 90m, 101: 120m,110: 240m,111: 480m
TS0
3
I
Default 011 by TS2 internal pull down, TS1&TS0 internal pull up
GND
4
- Ground
DISC
5
I/O Control output if discharging external capacitor and button input, high active
RELAY
6
I/O RELAY output and button input, high active
ACSEL
7
I
50/60Hz selection pin: default is 60Hz by internal pull down; connecting to VCC is
50Hz.
VCC
8
- Power supply
2013-12-0013
PT0266-5
01/03/14
1