Datasheet > 33887_08

33887_08

更新时间： 2022-12-18 11:41:31

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		/
页数	文件大小	规格书
37页	1638K
描述
5.0 A H-Bridge with Load Current Feedback

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33887_08 数据手册

PIN CONNECTIONS

Transparent Top View of Package

IN2

V+

PGND

AGND

Figure 4. 33887 Pin Connections

Table 2. PQFN PIN DEFINITIONS

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

Pin Name

Formal Name

Definition

No internal connection to this pin.

1, 7, 10, 16,

19, 28, 31

No Connect

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

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

Disable 1

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

IN2

Logic Input Control 2

Enable

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

EN logic LOW = Sleep Mode).

Positive supply connections.

5, 6, 12, 13, 34, 35

V+

AGND

Positive Power Supply

Analog Ground

Low-current analog signal ground.

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

5.0 V.

Fault Status for H-Bridge

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

Output 1 of H-Bridge.

14, 15, 17, 18

IN1

OUT1

Logic Input Control 1

H-Bridge Output 1

Current feedback output providing ground referenced 1/375th ratio of

H-Bridge high-side current.

Feedback for H-Bridge

High-current power ground.

21–26

PGND

Power Ground

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.

Output 2 of H-Bridge.

29, 30, 32, 33

OUT2

CCP

H-Bridge Output 2

External reservoir capacitor connection for internal charge pump

capacitor.

Charge Pump Capacitor

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.

Pad

Thermal

Interface

Exposed Pad Thermal

Interface

33887

Analog Integrated Circuit Device Data

Freescale Semiconductor

1 2 345 6 7...37

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