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부품번호 MC34929 기능
기능 Brushless DC 1.0 AMP 28 VOLT Motor Driver IC
제조업체 Freescale Semiconductor
로고 Freescale Semiconductor 로고


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MC34929 데이터시트, 핀배열, 회로
www.DataSheet4U.com
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.




MC34929 pdf, 반도체, 판매, 대치품
PIN CONNECTIONS
Table 1. 34929 Pin Definitions (continued)
Pin Number Pin Name
19 RUN
20 TACH
21 3XTACH
22 DIR
11 GND
24 PWM
18 ISENS
Pin Function
INPUT
OUTPUT
OUTPUT
INPUT
RETURN
INPUT
INPUT
Formal Name
RUN
TACH OUTPUT
3X TACH OUTPUT
DIRECTION
SIGNAL GROUND
PWM OR ENABLE
CURRENT SENSE
Definition
RUN/STOP CONTROL INPUT (ACTIVE LOW = MOTOR RUNNING)
OPEN-DRAIN-BUFFERED OUTPUT OF SENSOR ‘AB’
OPEN-DRAIN-BUFFERED, EXOR’ED OUTPUT OF ALL THREE
SENSORS
DIRECTION CONTROL INPUT (ACTIVE LOW = CW ROTATION)
SIGNAL GROUND FOR DEVICE
PWM SIGNAL INPUT (ACTIVE LOW = OUTPUTS ENABLED)
CURRENT LIMITING SENSE RESISTOR INPUT
34929
4
Analog Integrated Circuit Device Data
Freescale Semiconductor

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MC34929 전자부품, 판매, 대치품
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 8.0 V VSUP 28 V, -0°C TA 85°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol Min Typ Max Unit
High Side RDS-ON (15)
Low Side RDS-ON (15)
High Side RDS-ON (hot) (16)
Low Side RDS-ON (hot) (16)
H-bridge MOSFETs’ Body-Diode Forward Voltage Drop(17)
Stall Detection Timer Output Current
Stall Detection Timer Detection Voltage
Current Limit Sense Voltage Threshold
Thermal Shutdown Temperature
TSD Hysteresis
RON-T
RON-B
RON-T_REF
RON-B_REF
VF-LD
IO-LDC
V-CTDET
VISENS
TSD
TSD-HYS
0.09
150
0.25
0.25
0.3
0.3
1.2
128
2.5
0.1
165
30
0.5
0.5
0.6
0.6
0.11
180
V
µA
V
V
°C
°C
Notes
15. @ TA = 25°C, 14 V =< V+ =< 28 V, IO = 1.0 A.
16. Typical value (for reference only) @ 85°C =< TJ =< 150°C, 8.0 V =< V+ =< 14 V. Not tested; not guaranteed.
17. @ IF = 1.0 A for each output MOSFET (measured from source to drain).
Analog Integrated Circuit Device Data
Freescale Semiconductor
34929
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