Analog Integrated Circuit Device Data

Freescale Semiconductor

3

17531A

TERMINAL CONNECTIONS

TERMINAL CONNECTIONS

Figure 3. 17531A, 20-Terminal VMFP Connections

Table 1. 17531A, 20-Terminal VMFP Definitions

A functional description of each terminal can be found in the Functional Terminal Description section beginning on page 10.

Terminal

Number

Terminal

Name

Formal Name

Definition

1

VDD

Logic Supply

Control circuit power supply terminal.

2

IN1A

Logic Input Control 1A

Logic input control of OUT1A (refer to Table 6, Truth Table, page 9).

3

IN1B

Logic Input Control 1B

Logic input control of OUT1B (refer to Table 6, Truth Table, page 9).

4

PSAVE

Power Save

Logic input controlling power save mode.

5

OUT2A

H-Bridge Output 2A

Output A of H-Bridge channel 2.

6

PGND1

Power Ground 1

High-current power ground 1.

7

OUT1A

H-Bridge Output 1A

Output A of H-Bridge channel 1.

8

VM1

Motor Drive Power Supply 1

Positive power source connection for H-Bridge 1 (Motor Drive Power Supply).

9

CRES

Predriver Power Supply

Internal triple charge pump output as predriver power supply.

10

C2H

Charge Pump 2H

Charge pump bucket capacitor 2 (positive pole).

11

C1H

Charge Pump 1H

Charge pump bucket capacitor 1 (positive pole).

12

C1L

Charge Pump 1L

Charge pump bucket capacitor 1 (negative pole).

13

C2L

Charge Pump 2L

Charge pump bucket capacitor 2 (negative pole).

14

OUT1B

H-Bridge Output 1B

Output B of H-Bridge channel 1.

15

PGND2

Power Ground 2

High-current power ground 2.

16

OUT2B

H-Bridge Output 2B

Output B of H-Bridge channel 2.

17

VM2

Motor Drive Power Supply 2

Positive power source connection for H-Bridge 2 (Motor Drive Power Supply).

18

IN2B

Logic Input Control 2B

Logic input control of OUT2B (refer to Table 6, Truth Table, page 9).

19

IN2A

Logic Input Control 2A

Logic input control of OUT2A (refer to Table 6, Truth Table, page 9).

20

LGND

Logic Ground

Low-current logic signal ground.

VDD

IN1B

OUT1A

VM1

CRES

C2H

PSAVE

OUT2A

PGND1

IN1A

LGND

VM2

OUT2B

PGND2

OUT1B

C2L

C1L

C1H

IN2A

IN2B

4

5

6

7

8

9

10

2

3

20

18

14

13

12

11

17

16

15

19

1