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PDF MC34929 Data sheet ( Hoja de datos )
| Número de pieza | MC34929 | |
| Descripción | Brushless DC 1.0 AMP 28 VOLT Motor Driver IC | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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Freescale Semiconductor
Advance Information
Brushless DC 1.0 AMP 28 VOLT
Motor Driver IC
The 34929 Brushless DC (BLDC) Motor Driver IC is a complete
BLDC motor driver system in one chip. It is designed to efficiently drive
three-phase BLDC motors up to 1A and 28V, and has built in protection
features making it ideal for a variety of consumer, portable, and office
applications containing small motors. It incorporates digital I/O, making
it easy to use with an MCU in a closed-loop motor control system. It has
a built-in Hall-effect sensors interface and a Hall sensors voltage
supply, so it can operate BLDC motors as a stand-alone controller/
driver. Its sophisticated analog/mixed-signal state machine
accommodates several modes of operation, including: Forward (CW),
Reverse (CCW), Run/Stop, Braking, Variable Speed (External PWM),
and Torque Limit (maximum-current-limit) modes.
Features
• Single-Supply Operation (8V–28V)
• Built-in Hall Sensors Controlled-Supply (VH)
• 3-Phase Hall Sensors Interface
• Two Tachometer Outputs (1X and 3X Hall Frequency)
• Adjustable Maximum Current Limit (Torque Limiting)
• Adjustable Stalled Rotor Detection and Protection
• Short Circuit Detection and Protection
• Over-Temperature Detection and Thermal Shutdown
• Undervoltage Detection and Shutdown
• Pb-Free Packaging Designated by Suffix Code EP.
CP 34929
V+
Document Number: MC34929
Rev. 7.0, 11/2006
34929
BRUSHLESS DC MOTOR DRIVER
QFN SUFFIX
98ARH99033A
24-PIN QFN (4X4X1)
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC34929EP
-0°C to 85°C
24 QFN
BDLC
MOTOR
MCU
CP+ CP-
PWM
RUN
DIR
3XTACH
TACH
CT
GND
CRES V+
PHC
PHB
PHA
LSS
ISENS
PGND
VH
HAB+
HAB-
HBC+
HBC-
HCA+
HCA-
Figure 1. 34929 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
1 page  
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 2. Maximum Ratings
All voltages are with respect to ground. Exceeding these ratings may cause a malfunction or permanent damage to the device.
Ratings
Symbol
Value
Unit
ELECTRICAL RATINGS
Power Supply Transient Voltage
Signal I/O Pins
Open Drain Outputs (TACH and 3XTACH)
Bridge Output Continuous Current
Bridge Output Peak Current
Bridge Output Voltage
Hall Voltage Supply Current
ESD Voltage (1)
Human Body Model (HBM)
Machine Model (MM)
V+TRANS
VI/O
TACHOUT
IO(CONT)
IO(PK)
VO
IVH
VESD
42
-0.6 to 5.5
42
1.0
1.5
-1.0 to (V+) +1.0
30
2000
200
V
V
V
A
A
V
mA
V
THERMAL RATINGS
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
THERMAL RESISTANCE
Junction to Ambient (2)
Power Dissipation (3)
Peak Package Reflow Temperature During Reflow (4), (5)
TA
TJ-MAX
TSTG
RθJA
PD
TPPRT
-0 to 85
150
-0 to 150
<125
1.0
Note 5
°C
°C
°C
°C/W
W
°C
Notes
1. ESD testing is performed in accordance with the Human Body Model (HBM) (CZAP = 100 pF, RZAP = 1500 Ω), the Machine Model (MM)
(CZAP = 200 pF, RZAP = 0 Ω), and the Charge Device Model (CDM), Robotic (CZAP = 4.0pF).
2. With PCB Layout comparable top copper and vias as shown in Figure 4, and bottom thermal ground plane of > 9 cm2.
3. With specified PCB Layout shown in Figure 4 under forced convection airflow condition.
4. Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
5. Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
Temperature and Moisture Sensitivity Levels (MSL),
> Go to www.freescale.com
> Search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx)]
> Locate your Part Number and in the Details column, select “View”
> Select “Environmental and Compliance Information”
Figure 4. Printed Circuit Board Layout for Maximum Thermal Performance
Analog Integrated Circuit Device Data
Freescale Semiconductor
34929
5
5 Page 
HAB
HBC
HCA
Internal
Reset
RUN
Rotation Detection
HAB
HBC
HCA
RST
Reset
DIR
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAMS
Stall Det.
Latch
Stall_Protect
Relaxation
Oscillator
CT
0.1 µF
Stall_Detect Counter
Count
Reset
Carry
Stall_Detect
Figure 10. Stalled Rotor Detection Logic Diagram
On Off Off
Off On Off
On On Off
PWM = Enabled
PWM = Disabled
Off Off Off
Figure 11. Synchronous Rectification “Slow-Decay Current” Example
Analog Integrated Circuit Device Data
Freescale Semiconductor
34929
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet MC34929.PDF ] | |
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