MC34920 datasheet(3/28 Pages) MOTOROLA

Il numero della parte	MC34920

Spiegazioni elettronici	2.8 OHM (Typ) Quad H-Bridge Motor Driver

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Produttore elettronici	MOTOROLA [Motorola, Inc]

Homepage	http://www.freescale.com

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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

34920

3

TERMINAL FUNCTION DESCRIPTION

Terminal

Terminal Name

Formal Name

Definition

1Vb

Output terminal to VVb

Terminal to connect to VVb capacitor.

2

CP2

Capacitor to CP1

Terminal for boost generator switch capacitor.

3

CP1

Capacitor to CP2

Terminal for boost generator switch capacitor.

4

RESET

Reset Output

Active low Reset output.

5VCC

VCC Supply Voltage

VCC power input for internal use. The 34920 accepts

either 3.3 V ±10% or 5.0 V ±5% for its logic voltage.

6, 7, 17, 18, 28,

29, 39, 40

GND

Substrate Ground

Ground connections for digital IC circuitry.

8

V1_FB

V1 Regulator Feedback Input

Voltage feedback for the V1 regulator.

9

DR1_MODE

Mode Select for Driver 1

Selects operational mode of Driver 1; Step = 1/DC = 0.

10

V1_SWITCH

Internal MOSFET Source for V1 Regulator

Switching output for V1 regulator.

11, 15, 16, 23,

30, 31, 35

VB+

VB+ (Bulk) Supply Voltage

High-voltage supply for motors and regulators.

12

DR2A1

Driver 2, Bridge 1, Output A

Motor driver output.

13

DR2SENSE1

Driver 2, Bridge 1, I Sense

Current sense for current mode.

14

DR2B1

Driver 2, Bridge 1, Output B

Motor driver output.

19

DR1A1

Driver 1, Bridge 1, Output A

Motor driver output.

20

DR1SENSE1

Driver 1, Bridge 1, I Sense

Current sense for current mode.

21

DR1B1

Driver 1, Bridge 1, Output B

Motor driver output.

22

DR1PWM

Driver 1 PWM Input

PWM input for Driver 1. Used only when DR1_MODE

terminal = 0.

24

DR2PWM

Driver 2 PWM Input

PWM input for Driver 2. Used only when DR2_MODE

terminal = 0.

25

DR1B2

Driver 1, Bridge 2, Output B

Motor driver output.

DR2SENSE1

DR2A1

VB+

V1_SWITCH

DR1_MODE

V1_FB

GND

30

31

32

33

34

35

36

29

DR2B1

VB+

DR2SENSE2

DR2A2

VB+

V2_SWITCH

DR2_MODE

V2_FB

GND

DR2B2

VB+

37

38

39

16

15

14

13

12

11

10

17

9

8

7

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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