PS236 Datasheet, PDF (3/13 Pages) Silicon Touch Technology Inc. – 3-Channel Secondary Monitoring IC With an Additional OCP Channel

Block Diagram
PS236
Vcc / VSx
VS13
VS5
VS33
ISX
IS13
IS5
IS33
159KΩ
VCCI
13 UV
6.5KΩ Vref
14.5KΩ Vref
VCCI
13 OV
64.5KΩ
VCCI
5 UV
6KΩ Vref
19.5KΩ ^Vref
VCCI
5 OV
51KΩ
VCCI
3.3 UV
10KΩ ^Vref
VCCI
3.3 OV
29KΩ Vref
Step Down
to near 2.5V
Iref X 8
Step Down
to near 2.5V
Iref X 8
Step Down
to near 2.5V
Iref X 8
Step Down
to near 2.5V
Iref X 8
VCCI
Vcc OC
VCCI
13 OC
VCCI
5 OC
VCCI
3.3 OC
17uS
De-bounce
POR
SQ
R
1MΩ
FPO/
delay
H : 3mS
L : 4.5uS
1
0
R
QS
73uS
De-bounce
delay
H : 300mS
L : 4.5uS
VCCI
1.13V
VCCI
0.63V
VCCI
1.25V
PGI
VCCI
1MΩ
PGO
delay
H : 2.5mS
L : 4.5uS
Power On
Reset
Internal
Power
POR
VCCI = 4V
Constant Current
Source Iref
RI
Band-Gap
Reference
Vref
1.25V
Clock
Generator
CLK
GND
3-Channel Secondary Monitoring IC
-2-
Version：A.001