Analog Integrated Circuit Device Data

Freescale Semiconductor

3

33887

PIN CONNECTIONS

PIN CONNECTIONS

Figure 3. 33887 Pin Connections

Table 1. 33887 HSOP PIN DEFINITIONS

A functional description of each pin can be found in the Functional Pin DescriptionS section, page 21.

Pin

Pin Name

Formal Name

Definition

1

AGND

Analog Ground

Low-current analog signal ground.

2

FS

Fault Status for H-Bridge

Open drain active LOW Fault Status output requiring a pull-up resistor to

5.0 V.

3

IN1

Logic Input Control 1

Logic input control of OUT1 (i.e., IN1 logic HIGH = OUT1 HIGH).

4, 5, 16

V+

Positive Power Supply

Positive supply connections

6, 7

OUT1

H-Bridge Output 1

Output 1 of H-Bridge.

8

FB

Feedback for H-Bridge

Current sensing feedback output providing ground referenced 1/375th

(0.00266) of H-Bridge high-side current.

9–12

PGND

Power Ground

High-current power ground.

13

D2

Disable 2

Active LOW input used to simultaneously tri-state disable both H-Bridge

outputs. When D2 is Logic LOW, both outputs are tri-stated.

14, 15

OUT2

H-Bridge Output 2

Output 2 of H-Bridge.

17

CCP

Charge Pump Capacitor

External reservoir capacitor connection for internal charge pump capacitor.

18

D1

Disable 1

Active HIGH input used to simultaneously tri-state disable both H-Bridge

outputs. When D1 is Logic HIGH, both outputs are tri-stated.

19

IN2

Logic Input Control 2

Logic input control of OUT2 (i.e., IN2 logic HIGH = OUT2 HIGH).

20

EN

Enable

Logic input Enable control of device (i.e., EN logic HIGH = full operation, EN

logic LOW = Sleep Mode).

Tab/Pad

Thermal

Interface

Exposed Pad Thermal

Interface

Exposed pad thermal interface for sinking heat from the device.

Note Must be DC-coupled to analog ground and power ground via very low

impedance path to prevent injection of spurious signals into IC substrate.

EN

AGND

IN2

D1

CCP

V+

OUT2

OUT2

D2

PGND

PGND

FS

V+

OUT1

OUT1

FB

PGND

PGND

IN1

V+

1

2

3

4

5

6

7

8

9

10

20

19

16

15

14

13

12

11

18

17

Tab

Tab