ELECTRICAL CHARACTERISTICS:
( All voltages referenced to Vss. TA = +25˚C unless otherwise specified.)
PARAMETER
Supply Voltage
Supply Current
SYMBOL
VDD
MIN
+6
-
TYP
-
-
MAX
+9.5
1.5
UNIT
V
mA
CONDITIONS
-
Output off,
VDD = +8.0V
IDD
TRIG Sink Current
Vo = VDD - V
IO
IO
-50
-
-
-
-
mA
mA
VDD = +8.0V
VDD = +8.0V
TRIG Source Current
+0.1
Vo = VDD - 0.2V
TRIG Pulse Width
TW
-
-
-
90
110
-
-
µs
µs
RC = 300kW, 60Hz
RC = 360kW, 50Hz
TRIG Pulse Delay
(Medium Brightness)
Td
-
-
4.0
4.8
-
-
ms
ms
Rc = 300kW, 60Hz
Rc = 360kW, 50Hz
CLOCK Resistor
RC
-
-
-
300
360
-
-
kW
kW
60Hz
50Hz
CONTROL Resistor
-
-
-
-
10
1
-
-
MW
µF
-
-
Capacitor
Touch Plate Capacitance
CL
-
-
600
pF
-
6
MODE
SYNC
ZERO-CROSS
DETECTOR
2
OUTPUT
DRIVER
8
TRIG
CLOCK
OSCILLATOR
COUNTER
1
4
DECODER
AGC CIRCUIT
STEPPER
TOUCH
5
CONTROL
FIGURE 3
LS7538/LS7539 BLOCK DIAGRAM
3
7
+V
-V
VDD
VSS
7538/39-041197-3
LSI [ LSI COMPUTER SYSTEMS ]
