MC33899 Freescale Semiconductor, MC33899 Datasheet - Page 4

• Manufacturer Part Number: MC33899
• Description: Programmable H-Bridge Power IC
• Manufacturer: Freescale Semiconductor

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Table 1. 33899 Pin Definitions (continued)
4
33899
PIN CONNECTIONS
Pin Number
A functional description of each pin can be found in the Functional Pin Description section beginning on
Tab/Pad
24
25
26
27
28
29
30
Pin Name
Interface /
Thermal
VCCL
CSNS
PWM
FWD
GND
REV
VCC
RS
Exposed Pad Thermal
Slew Rate Control
Current Sense
Formal Name
Reverse Input
Forward Input
PWM Input
3.3 V Input
5.0 V Input
Interface
This input pin is connected to a resistor that sets slew timing.
This input pin is used to set the motor switching and frequency duty cycle.
This input pin, along with the reverse input pin REV, determines the direction of
current flow in the H-Bridge.
This input pin, along with the forward input pin FWD, determines the direction of
current flow in the H-Bridge.
3.3 V input source.
5.0 V input source.
Output of current amplifier.
The exposed pad, a thermal interface for sinking heat from the device, is a high-
current GND connection and must be connected to GND (pins 12 and 19).
Definition
Analog Integrated Circuit Device Data
Freescale Semiconductor
page
12.