Document Number: MC33899
Rev. 4.0, 5/2010
Freescale Semiconductor
Advance Information
Programmable H-Bridge
Power IC
33899
The 33899 is designed to drive a DC motor in both forward and
reverse shaft rotation under pulse-width modulation (PWM) control of
speed and torque. A current mirror output provides an analog
feedback signal proportional to the load current. A serial peripheral
interface (SPI) is used to select slew rate control, current
compensation limits and to read diagnostic status (faults) of the H-
Bridge drive circuits. SPI diagnostic reporting includes open circuit,
short-circuit to VIGNP, short-circuit to ground, die temperature range,
and under-voltage on VIGNP.
PROGRAMMABLE H-BRIDGE POWER IC
Features
• Drives inductive loads in a full H-Bridge configuration
VW SUFFIX (Pb-FREE)
98ASH70693A
•
Current mirror output signal (gain selectable via external resistor)
• Short-circuit current limiting
Thermal shutdown (outputs latched off until reset via the SPI)
30-PIN HSOP
•
• Internal charge pump circuit for the internal high side MOSFETs
• SPI-selectable slew rate control and current limit control
• Over-temperature shutdown
• Outputs can be disabled to high-impedance state
• PWM-able up to 11 kHz @ 3.0 A
ORDERING INFORMATION
Temperature
Device
Package
Range (T )
A
MC33899VW/R2
-40°C to 125°C
30 HSOP
• Synchronous rectification control of the high side MOSFETs
•
Low RDS(ON) outputs at high junction temperature (< 165 mΩ @
TA = 125°C, VIGNP = 6.0 V)
•
Outputs survive shorts to -1.0 V
• Pb-free packaging designated by suffix code VW
VDDL
VIGNP
33899
+5.0 V
VIGNP
VCC
REDIS
CRES
VCCL
S1
VDDQ
CSNS
FWD
REV
PWM
EN1
EN2
CS
S0
MCU
RS
SCLK
DI
D0
LSCMP
GND
Figure 1. 33899 Simplified Application Diagram
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
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