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參數(shù)資料
| 型號： | PC33887VWR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, PDSO20 |
| 封裝： | LEAD FREE, PLASTIC, HSOP-20 |
| 文件頁數(shù)： | 1/32頁 |
| 文件大小： | 859K |
| 代理商： | PC33887VWR2 |
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MC33887
Rev 10.0, 07/2005
Freescale Semiconductor
Technical Data
Freescale Semiconductor, Inc., 2005. All rights reserved.
There are no disclaimers required on the Final publication of a data sheet.
5.0 A H-Bridge with Load
Current Feedback
The 33887 is a monolithic H-Bridge Power IC with a load current
feedback feature making it ideal for closed-loop DC motor control.
The IC incorporates internal control logic, charge pump, gate drive,
and low RDS(ON) MOSFET output circuitry. The 33887 is able to
control inductive loads with continuous DC load currents up to 5.0 A,
and with peak current active limiting between 5.2 A and 7.8 A.
Output loads can be pulse width modulated (PWM-ed) at
frequencies up to 10 kHz. The load current feedback feature
provides a proportional (1/375th of the load current) constant-current
output suitable for monitoring by a microcontroller’s A/D input. This
feature facilitates the design of closed-loop torque/speed control as
well as open load detection.
A Fault Status output terminal reports undervoltage, short circuit,
and overtemperature conditions. Two independent inputs provide
polarity control of two half-bridge totem-pole outputs. Two disable
inputs force the H-Bridge outputs to tri-state (exhibit high
impedance).
The 33887 is parametrically specified over a temperature range
of -40
°C ≤ TA ≤ 125°C and a voltage range of 5.0 V ≤ V+ ≤ 28 V. The
IC can also be operated up to 40 V with derating of the
specifications.
Features
5.0 V to 40 V Continuous Operation
120 m
RDS(ON) H-Bridge MOSFETs
TTL/CMOS Compatible Inputs
PWM Frequencies up to 10 kHz
Active Current Limiting (Regulation)
Output Short Circuit Protection (Short to V+ or Short to GND)
Undervoltage Shutdown
Fault Status Reporting
Sleep Mode with Current Draw
≤50 A (Inputs Floating or Set
to Match Default Logic States)
Pb-Free Packaging Designated by Suffix Codes VW and PNB.
Figure 1. 33887 Simplified Application Diagram
33887
5.0 A H-BRIDGE
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33887DH/R2
-40°C to 125°C
20 HSOP
PC33887VW/R2
MC33887PNB/R2
36 PQFN
MC33887DWB/R2
54 SOICW-EP
DH SUFFIX
VW (Pb-FREE) SUFFIX
98ASH70273A
20-TERMINAL HSOP
Bottom View
DWB SUFFIX
98ASA10506D
54-TERMINAL SOICW-EP
PNB (Pb-FREE) SUFFIX
98ASA10583D
36-TERMINAL PQFN
5.0 V
V+
MOTOR
MCU
IN
OUT
OUT2
OUT1
V+
CCP
PGND
AGND
FS
IN1
EN
D1
IN2
D2
FB
A/D
33887
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