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PC33926

Freescale Semiconductor
Part Number PC33926
Manufacturer Freescale Semiconductor
Description Throttle Control H-Bridge
Published Aug 8, 2007
Detailed Description www.DataSheet4U.com Freescale Semiconductor Product Preview Document Number: MC33926 Rev. 4.0, 12/2006 5.0 A Throttle...
Datasheet PDF File PC33926 PDF File

PC33926
PC33926

Overview
www.
DataSheet4U.
com Freescale Semiconductor Product Preview Document Number: MC33926 Rev.
4.
0, 12/2006 5.
0 A Throttle Control H-Bridge The 33926 is a monolithic H-Bridge Power IC designed primarily for automotive electronic throttle control, but is applicable to any lowvoltage DC servo motor control application within the current and voltage limits stated in this specification.
The 33926 is able to control inductive loads with currents up to 5.
0 A peak.
RMS current capability is subject to the degree of heatsinking provided to the device package.
Internal peak-current limiting (regulation) is activated at load currents above 6.
5 A ± 1.
5 A.
Output loads can be pulse width modulated (PWM-ed) at frequencies up to 20 kHz.
A load current feedback feature provides a proportional (0.
24% of the load current) current output suitable for monitoring by a microcontroller’s A/D input.
A Status Flag output reports undervoltage, overcurrent, and overtemperature fault conditions.
Two independent inputs provide polarity control of two half-bridge totem-pole outputs.
Two independent disable inputs are provided to force the H-Bridge outputs to tri-state (high impedance off-state).
An input invert input changes the IN1 and IN2 inputs to LOW = true logic.
Features 33926 AUTOMOTIVE THROTTLE H-BRIDGE ACTUATOR/ MOTOR EXCITER Bottom SCALE View 2:1 PNB SUFFIX 98ARL10579D 32-PIN PQFN • 8.
0 V to 28 V Continuous Operation (Transient Operation from 5.
0 V to 36 V) • 225 mΩ maximum RDS(ON) @ 150°C (each H-Bridge MOSFET) ORDERING INFORMATION • 3.
0 V and 5.
0 V TTL / CMOS Logic Compatible Inputs Temperature Device Package • Overcurrent Limiting (Regulation) via Internal Constant-OffRange (TA) Time PWM PC33926PNB/R2 - 40°C to 125°C 32 PQFN • Output Short Circuit Protection (Short to VPWR or Ground) • Temperature-Dependant Current-Limit Threshold Reduction • All Inputs have an Internal Source/Sink to Define the Default (Floating Input) States • Sleep Mode with Current Draw < 50 µA (with Inputs Fl...


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