ALD4303ADB ALD [Advanced Linear Devices], ALD4303ADB Datasheet - Page 6

• Manufacturer Part Number: ALD4303ADB
• Description: QUAD PRECISION MICROPOWER CMOS VOLTAGE COMPARATOR WITH DRIVER
• Manufacturer: ALD [Advanced Linear Devices]

ALD4303A/ALD4303
This circuit eliminates crossover current in the
complementary power transistors. The outputs can
be used to source and sink different loads or tied
together to provide push-pull drive of the same load.
Design & Operating Notes:
1. In order to minimize stray oscillation, all unused inputs must be tied to ground.
2. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1 pA at room
3. The high output sinking current of 60mA for each output offers flexibility in many applications, as a separate buffer or driver would not be
R
temperature. These currents are a function of ambient temperature, and would have to be considered in applications where very high source
impedance or high accuracy are involved.
necessary to drive the intended load. However, as the circuit normally operates close to ambient temperature due to its very low power
consumption, thermal effects caused by large output current transients must be considered in certain applications.
50 K
V
REF
V
IN
+
1/4 ALD4303
PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER
V
+
V
IN
10K
40K
10K
V
V
2
1
+12V
TYPICAL APPLICATIONS
R
TIME DELAY GENERATOR
T
Advanced Linear Devices
C
T
+
+
R
R
R
R
+12V
+12V
F1
F2
F3
F4
V
+
R
1/2 ALD4303
R
+
1/4 ALD4303
+
1/4 ALD4303
1/4 ALD4303
+
+12V
RELAY 1 turns off followed by
RELAY 2 and then RELAY 3 with
fixed sequence and time delays
selectrd by ratios R
and R
P- Channel VP 02
Power MOSFET
N - Channel VN 01
Power MOSFET
2A Source
2A Sink
F4.
RELAY 1
RELAY 3
RELAY 2
F1
, R
F2
, R
F3
RM