ALD4302ASBL 데이터 시트보기 (PDF) - Advanced Linear Devices

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ALD4302ASBL

QUAD PRECISION CMOS VOLTAGE COMPARATOR WITH PUSH-PULL DRIVER

Advanced Linear Devices 

TYPICAL APPLICATIONS (cont'd)

PUSH-PULL COMPLEMENTARY POWER MOSFET DRIVER

+12V

10K

V1

VIN

40K

1/4 ALD4302

+12V

+

+12V

+12V

P- Channel VP 02

Power MOSFET

2A Source

2A Sink

V2

This circuit eliminates crossover current in the

10K

complementary power transistors. The outputs

can be used to source and sink different loads

or tied together to provide push-pull drive.

+

1/4 ALD4302

N - Channel VN 01

Power MOSFET

VREF

VIN

1/4 ALD4302

V+

+

TIME DELAY GENERATOR

RT

CT

V+

RF1

1/4 ALD4302

V1

+

RF2

1/4 ALD4302

V2

+

RF3

1/4 ALD4302

V3

+

RF4

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 ALD4302 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 1pA at room 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.

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.

ALD4302A/ALD4302

Advanced Linear Devices

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