1.5A DUAL OPEN-DRAIN
MOSFET DRIVERS
TC4404
TC4405
TYPICAL CHARACTERISTICS (Cont.)
Quiescent Supply Current
vs. Temperature
Pull-Up Output Resistance
Pull-Down Output Resistance
4.0
3.5
3.0
2.5
2.0
25
20
15
25
V
= 18V
DD
BOTH INPUTS = 1
WORST CASE
20
@ T = +150°C
J
WORST CASE
@ T = +150°C
J
15
10
8
10
8
TYP @ +25°C
TYP @ +25°C
5
5
14 16 18
14 16 18
–55 –35 –15
5
25 45 65 85 105 125
4
6
8
10 12
4
6
8
10 12
TEMPERATURE (°C)
V
V
DD
DD
TYPICAL APPLICATIONS
Zero Crossover Current Totem-Pole Switch
Driving Bipolar Transistors
V
V
DD
DD
(4.5V – 18V)
(4.5V–18V)
R
R
T
IB
V
FROM TTL
FROM TTL
OUT
R
TC4405
R
TC4404
IB
T
GND
GND
REACH-UP AND REACH-DOWN DRIVING
Servo Motor Control
+12V
+12V
+24V
+12V
47 kΩ
47 kΩ
SWITCHED
+12V
15V
15V
0.1 µF
0.1 µF
+5V
FROM TTL
GND
+5V
DIRECTION
(TTL LEVEL)
R
R
MOTOR
T
SPEED
(PWM)
TC4404
T
GND
SWITCHED
–12V
I
SENSE
TC4469
TC4404
GND
–12V
–12V
4-224
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
