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Alternative outputs
DESCRIPTION
The KK1503 is a CMOS LSI LEDs driver circuit.
An automatic cut off function is built in to lower the current consumption.
The metal mask can be modified in order to adjust the flashing rate, the duty cycle and the time of flash to a particular
value.
Besides, two output LEDs can be flashed in phase or alternative by mask selection.
ABSOLUTE MAXIMUM RATINGS
Characteristic
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Symbol
V
DD
- V
SS
V
IN
T
a
T
stg
Value
- 0.3 ~ + 5.0
V
SS
- 0.2 ~ V
DD
+ 0.2
- 10 ~ + 60
- 55 ~ + 125
Unit
V
V
o
o
C
C
ELECTRICAL CHARACTERISTICS
(Ta = 25
o
C; V
DD
= 3.0V; V
SS
= 0V unless otherwise specified)
Characteristic
Operating Voltage
Standby
Current Consumption
Symbol
V
DD
I
DD1
I
DD2
No Playing
Open
Playing
Q1, Q2 Open
Input Current (P)
I
IL
I
IH
Output Current
Oscillating Frequency
Oscillating Start Voltage
(Q1, Q2)
I
OL
F
OSC
V
STR
V
IL
= 0.8V
V
IH
= 3.0V
V
OL
= 0.5V
6
54
2.4
10
0.5
10
76.8
100
50
1
碌A(chǔ)
碌A(chǔ)
mA
KHz
V
50
100
碌A(chǔ)
P
Test Condition
Min
2.4
Typ
3.0
0.1
Max
3.6
2.5
Unit
V
碌A(chǔ)
TIMING DIAGRAM
T = One Duration
1
1
2
