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ALD2302A Datasheet(PDF) 6 Page - Advanced Linear Devices

Part No. ALD2302A
Description  DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER
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Maker  ALD [Advanced Linear Devices]
Homepage  http://www.aldinc.com
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ALD2302A Datasheet(HTML) 6 Page - Advanced Linear Devices

   
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ALD2302A/ALD2302
Advanced Linear Devices
6
TYPICAL APPLICATIONS
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.
PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER
+
+
+12V
+12V
+12V
P- Channel VP 02
Power MOSFET
2A Source
2A Sink
N - Channel VN 01
Power MOSFET
+12V
10K
40K
10K
V1
V2
VIN
ALD2302
Design & Operating Notes:
1. As each output sources up to 10mA in the output high state, the output stage of a wired - OR low output circuit must be able to sink this current and still
provide desired output voltage levels. For TTL output levels, this consideration limits the number to a maximum of three ALD2302 outputs wired-OR
together.
2. In order to minimize stray oscillation, all unused inputs must be tied to ground.
3. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1 pA at room
temperature. The 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.
4. The high output sinking current of 60mA for each output offers flexibility in many applications, as a separate buffer or driver would not be 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.
TIME DELAY GENERATOR
+
RF4
V3
1/2 ALD 2302
1/2 ALD 2302
RF3
RF2
V+
RF1
+
1/2 ALD 2302
V2
+
1/2 ALD 2302
V1
RT
CT
+
VIN
V+
VREF


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