參數(shù)資料
型號(hào)： PC33926PNBR2
廠(chǎng)商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： 5.0 A Throttle Control H-Bridge
中文描述： 5.0甲節(jié)氣門(mén)控制H橋
文件頁(yè)數(shù)： 1/24頁(yè)
文件大小： 378K
代理商： PC33926PNBR2
Document Number: MC33926
Rev. 4.0, 12/2006
Freescale Semiconductor
Product Preview
Freescale Semiconductor, Inc., 2007. All rights reserved.
*This document contains certain information on a product under development. Free-
scale reserves the right to change or discontinue this product without notice
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 low-
voltage 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
8.0 V to 28 V Continuous Operation (Transient Operation from
5.0 V to 36 V)
225 m
maximum R
DS(ON)
@ 150°C (each H-Bridge MOSFET)
3.0 V and 5.0 V TTL / CMOS Logic Compatible Inputs
Overcurrent Limiting (Regulation) via Internal Constant-Off-
Time PWM
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 Floating or Set to Match Default Logic States)
Figure 1. 33926 Simplified Application Diagram
ORDERING INFORMATION
Device
Temperature
Range (T
A
)
Package
PC33926PNB/R2
- 40°C to 125°C
32 PQFN
Bottom View
PNB SUFFIX
98ARL10579D
32-PIN PQFN
33926
AUTOMOTIVE THROTTLE H-BRIDGE
ACTUATOR/ MOTOR EXCITER
SF
FB
IN1
IN2
INV
SLEW
D1
D2
EN
VPWR
CCP
OUT1
OUT2
PGND
AGND
MCU
33926
V
PWR
V
DD
MOTOR
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