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參數資料
| 型號： | PC33926PNBR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 5 A, PQCC32 |
| 封裝： | 8 X 8 MM, 2.10 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MO-251AADDB-1, QFN-32 |
| 文件頁數： | 1/25頁 |
| 文件大?。?/td> | 778K |
| 代理商： | PC33926PNBR2 |
Document Number: MC33926
Rev. 7.0, 6/2007
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
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 40 V)
225 m
maximum RDS(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 A (with Inputs Floating or Set to Match Default Logic States)
Pb-Free Packaging Designated by Suffix Code PNB
Figure 1. 33926 Simplified Application Diagram
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
PC33926PNB/R2
- 40°C to 125°C
32 PQFN
SCALE 2:1
PNB SUFFIX (Pb-FREE)
32-PIN PQFN
Bottom View
33926
AUTOMOTIVE THROTTLE H-BRIDGE
ACTUATOR/ MOTOR EXCITER
98ARL10579D
SF
FB
IN1
IN2
INV
SLEW
D1
D2
EN
VPWR
CCP
OUT1
OUT2
PGND
AGND
MCU
33926
VPWR
VDD
MOTOR
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