MC34920 データシートの表示（PDF） - Freescale Semiconductor

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MC34920

2.8 Ω (Typ) Quad H-Bridge Motor Driver

Freescale Semiconductor 

PIN CONNECTIONS

PIN CONNECTIONS

GND 29

VB+ 30

VB+ 31

DR2B2 32

DR2SENSE2 33

DR2A2 34

VB+ 35

V2_SWITCH 36

DR2_MODE 37

V2_FB 38

GND 39

17 GND

16 VB+

15 VB+

14 DR2B1

13 DR2SENSE1

12 DR2A1

11 VB+

10 V1_SWITCH

9 DR1_MODE

8 V1_FB

7 GND

Table 1. 34920 Pin Definitions

Figure 3. 34920 Pin Connections

Pin Number Pin Name

Formal Name

Definition

1

VB

2

CP2

3

CP1

4

RESET

5

VCC

Output pin to VVb

Capacitor to CP1

Capacitor to CP2

Reset Output

VCC Supply Voltage

Pin to connect to VVb capacitor.

Pin for boost generator switch capacitor.

Pin for boost generator switch capacitor.

Active low Reset output.

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 Switching output for V1 regulator.

Regulator

11, 15, 16,

VB+

23, 30, 31, 35

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.

Analog Integrated Circuit Device Data

Freescale Semiconductor

34920

3

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