DC Brush Motor Products
(1 of 2 tables, see below)

Unitrode Part Number

L293

L293D

UC3637

UC3638 +

UC3717

UC3717A

Output Clamp Diodes

 Y

 Y

Y

Output Current per Output (A)

1

 0.6

0.1

0.1/0.05

0.8

1

Operating Voltage (V)

4.5 - 36

4.5 - 36

5 - 36

 10 - 36

 10 - 45

10 - 46

Differential Current Sense Amplifier

Y

Thermal Shutdown

 Y

 Y

 Y

Y

Current Limit

Y

 Y

 Y

Y

Application/Design Note

DN-53A, U-102,
U-112, U-120

U-120

U-99

U-99

+ New Product

DC Brush Motor Products
(2 of 2 tables)

Unitrode Part Number

UC3770A/B

UC3172A

UC3173A

UC3175B

UC3176/7

UC3178

Lower

Y

Y

Y

Y

Y

Output Current per Output (A)

1.3

1

0.55

0.8

2

0.45

Operating Voltage (V)

10 - 50

4 - 15

4 - 15

4 - 15

3 - 35

3 - 15

Differential Current Sense Amplifier

Y

Y

Y

Y

Y

Thermal Shutdown

Y

Y

Y

Y

Y

Y

Current Limit

Y

Y

Y

Y

Y

Y

3 Phase Brushless
DC Motor Products

Unitrode Part Number

UC3625

UCC3626

Hall Logic

Y

Y

Tachometer

Y

Y

Output Current per Output (A)

0.1

0.01

Operating Voltage

10 - 18

11 - 15

Differential Current Sense Amplifier

Y

Y

Current Limit

Y

Application/Design Note

DN-50, U-115, U-120, U-130

U-120

Unitrode Part Number

L293

L293D

UC3517

UC3717

UC3717A

UC3770A/B

Output Clamp Diodes

Y

Y

Y

Lower

Output Current per Output (A)

1

0.6

0.35

0.8

1

1.3

Operating Voltage (V)

4.5 - 36

4.5 - 36

10 - 40

10 - 45

10 - 46

10 - 50

Thermal Shutdown

Y

Y

Y

Y

Y

Current Limit

Y

Y

Y

Application/Design Note

U-99

U-99

Linear Power
Amplifier Products

Unitrode Part Number

UC3172A

UC3173A

UC3175B

UC3176/7

UC3178

Four Quadrant

 Y

Y

 Y

 Y

Y

Number of Outputs

 2

2

2

2

2

BW (MHz)

2

2

 2

 1

2

Operating Voltage (V)

4 - 15

4 - 15

4 - 15

3 - 35

3 - 15

Output Current per Output (A)

1

0.55

0.8

2

0.45

Thermal Shutdown

 Y

Y

 Y

 Y

Y

Differential Current Sense Amplifier

 Y

Y

 Y

 Y

Y

Phase Locked Frequency
Controller Products

Unitrode Part Number

UC3633

UC3634

UC3635

Internal Oscillator

 Y

Y

Divider Output Provided

Y

External Phase Detector Inputs

Y

2 Phase Drive Logic

Y

Y

Divide Logic Select

4/5 & 2/4/8

2/4/8

2/4

Operating Voltage (V)

8 - 15

8 - 15

8 - 15

Thermal Shutdown

Maximum Frequency (MHz)

10

10

10

Application/Design Note

U-113

U-113

U-113

Power Supply Support Products

Unitrode Part Number

UC3610

UC3611

 UC3612

Description

Dual Schottky Diode Bridge

Quad Schottky Diode Array

Dual Schottky Diode

Application

Eight-diode Array for High Current, Low Duty Cycle Flyback Voltage Clamping for Inductive Loads

Four-diode Array for High Current Bridges and Voltage Clamps

Two-diode Array for High Current, Low Duty Cycle  Flyback Voltage Clamping for Inductive Loads

Key Features

• Monolithic Eight-diode Array
• High Peak Current
• Low Forward Voltage
• Fast Recovery Time

• Matched, Four-diode     Monolithic Array
• High Peak Current
• Low Forward Voltage
• Parallelable for Higher Current or Lower Voltage Drop

• Monolithic Two-diode
  Array
• High Peak Current
• Low Forward Voltage
• Fast Recovery Time