MC33899VW FREESCALE [Freescale Semiconductor, Inc], MC33899VW Datasheet - Page 18

• Manufacturer Part Number: MC33899VW
• Description: Programmable H-Bridge Power IC
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

microprocessor and provides for control of the four MOSFET
outputs. The PWM duty cycle range is 0% to 100%; however,
open load detection circuits require a minimum off-time.
18
33899
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
INTRODUCTION
The PWM input is connected to the system
M2 GATE
M1 GATE
INPUT
PWM
S0
V
IGNP
+ V
R
Figure 12. 33899 Operation in Forward Mode
F
DS(ON)
Current
Dead
Load
Time
* I
LOAD
R
DS(ON)
V
IGNP
* I
either logic [0]s or logic [1]s.
outputs in forward mode operation.
-
LOAD
The 33899 holds all outputs off if both FWD and REV are
M3 is “ON”
M4 is “OFF”
Analog Integrated Circuit Device Data
Figure 12
Freescale Semiconductor
depicts inputs versus