KA3082B Fairchild Semiconductor, KA3082B Datasheet - Page 7

• Manufacturer Part Number: KA3082B
• Description: Motor / Motion / Ignition Controllers & Drivers DC Motor Driver
• Manufacturer: Fairchild Semiconductor
• Type: Bidirectional DC Motor Driverr

Specifications of KA3082B

• Operating Supply Voltage: 7 V to 18 V
• Mounting Style: Through Hole
• Package / Case: SIP-10
• Operating Temperature: - 25 C to + 75 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Application Information
1. Thermal Shut Down Circuit
When Ta = 25 C, Q2 & Q3 are Turn-off and output stage operate normally.
V
V
When Ta = 165 C, Q2 & Q3 become Turn-on and it turn-off the output stage.
0.70V - 0.37V = 330mV (When Q
And temperature coefficient of Q
2. Logic Input & Output Table
Input High is above 2.0V.
Input Low is below 0.7V.
1
2
T.S.D: 330mV / 2mV = 165 C
= I (R1 + R2)
= R2 / (R1 + R2)
Pin #5
High
High
Low
Low
Input
V1 = 0.37V
2
Pin #6
2
= Q
High
High
Low
Low
& Q
3
3
= 2mV/ C
are Turn-on, Vbe
V1
V2
Q1
R1
R2
I
Pin #2
Q2
High
Low
Low
Low
= Vbe
Q2
Q3
Output
= 0.70V)
Q3
Pin #10
High
Low
Low
Low
Forward
Reverse
Motor
Brake
Brake
KA3082
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