MC34929EPR2 Freescale Semiconductor, MC34929EPR2 Datasheet

IC MOTOR DRIVER BLDC 1A 24-QFN

MC34929EPR2

Manufacturer Part Number
MC34929EPR2
Description
IC MOTOR DRIVER BLDC 1A 24-QFN
Manufacturer
Freescale Semiconductor
Type
Brushless DC Motor Controllerr
Datasheet

Specifications of MC34929EPR2

Applications
DC Motor Driver, Brushless (BLDC), 3 Phase
Number Of Outputs
1
Current - Output
1A
Voltage - Supply
8 V ~ 28 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-QFN
Operating Current
6mA
Operating Temperature Classification
Commercial
Operating Supply Voltage (min)
8V
Operating Supply Voltage (typ)
12V
Operating Supply Voltage (max)
28V
Operating Supply Voltage
12 V
Supply Current
6 mA
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Compliant
Freescale Semiconductor
Advance Information
* 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.
Brushless DC 1.0 AMP 28 VOLT
Motor Driver IC
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
The 34929 Brushless DC (BLDC) Motor Driver IC is a complete
• 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.
MCU
Figure 1. 34929 Simplified Application Diagram
PWM
RUN
DIR
3XTACH
TACH
CT
GND
CP+ CP-
CP
34929
CRES V+
ISENS
PGND
HBC+
HCA+
HAB+
HAB-
HBC-
HCA-
PHC
PHB
PHA
LSS
V+
VH
MC34929EP
Device
BRUSHLESS DC MOTOR DRIVER
ORDERING INFORMATION
24-PIN QFN (4X4X1)
98ARH99033A
QFN SUFFIX
Document Number: MC34929
Temperature
-0°C to 85°C
34929
Range (T
BDLC
MOTOR
A
)
Rev. 7.0, 11/2006
Package
24 QFN

Related parts for MC34929EPR2

MC34929EPR2 Summary of contents

Page 1

... Pb-Free Packaging Designated by Suffix Code EP. MCU 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. BRUSHLESS DC MOTOR DRIVER Device MC34929EP V+ ...

Page 2

... Pump VGHS High Side Gate Drive SC Det Low Side Gate Drive UVLO TLIM V O HAB G Control Logic HBC HCA Stall Det PHC PHB PHA LSS ISENS ILIM PGND VH HAB+ HAB- HBC+ HBC- HCA+ HCA- Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 3

... CT COMPONENT 13 VH OUTPUT 14 PHC OUTPUT 15 PHA OUTPUT 16 LSS RETURN 17 PHB OUTPUT Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS Figure 3. 34929 Pin Connections Formal Name RECEIVES NEGATIVE OUTPUT FROM SENSOR LOCATED HALL CA NEG BETWEEN ‘C’ AND ‘A’ PHASES ...

Page 4

... OPEN-DRAIN-BUFFERED, EXOR’ED OUTPUT OF ALL THREE 3X TACH OUTPUT SENSORS DIRECTION CONTROL INPUT (ACTIVE LOW = CW ROTATION) DIRECTION SIGNAL GROUND FOR DEVICE SIGNAL GROUND PWM SIGNAL INPUT (ACTIVE LOW = OUTPUTS ENABLED) PWM OR ENABLE CURRENT LIMITING SENSE RESISTOR INPUT CURRENT SENSE Definition Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 5

... 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 ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Symbol V+ ...

Page 6

... V 50 300 — mV — -50 — A — 100 — — — mV 0.0 — 3.0 V — 15 — mV -10 — — — (V+) +12 V — 0.1 — F — 0.1 — F — — 0.4 V — — — — (V+) -1.0 V Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 7

... V =< V+ =< 16. Typical value (for reference only) @ 85°C =< 1.0 A for each output MOSFET (measured from source to drain). F Analog Integrated Circuit Device Data Freescale Semiconductor GND = 0 V unless otherwise noted. Typical SUP A = 25°C under nominal conditions unless otherwise noted. A ...

Page 8

... Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 9

... Reset (Internal) Reset X RUN DIR HAB HBC HCA CT Stall_Detect X Stall_Protect X Analog Integrated Circuit Device Data Freescale Semiconductor TIMING DIAGRAMS T WAKE V LV-HYS T T SPND WAIT Figure 6. Timing for Reset on Low V+ Detect Stall ~2 sec @ 0.1 F Figure 7. Stall Detection/Protection Timing ELECTRICAL CHARACTERISTICS TIMING DIAGRAMS ...

Page 10

... TACH 3XTACH HAB 34929 10 HS-ON HS-OFF 90% 90% 10% 10% Output Rise Time = LS-OFFf + HS-ON Output Fall Time = HS-OFF + LS-ON Controlled Brake Reverse Brake T CBRK Figure 9. Controlled Brake Mode Timing T OFF LS-ON 90% 10% Stop CCW Rotation Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 11

... HBC HBC HCA HCA Reset Internal Reset RUN Figure 10. Stalled Rotor Detection Logic Diagram On Off On Off Figure 11. Synchronous Rectification Analog Integrated Circuit Device Data Freescale Semiconductor Rotation Detection RST DIR Stall_Detect Counter Count Relaxation Oscillator Reset CT 0.1 F Off Off On Off PWM = Enabled ...

Page 12

... ELECTRICAL CHARACTERISTICS TIMING DIAGRAMS PWM PWM Phases 34929 12 Figure 12. PWM Switching Waveforms Figure 13. ISENS Current Limit Waveforms T DELAY Figure 14. Propagation Delay Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 13

... Main supply input for device and monitor. SIGNAL GROUND (GND) Signal ground for the device. Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION INTRODUCTION Hall sensors bias supply, it can operate motors either stand- alone (e.g., with pushbutton/switch interface), or under the control of an external MCU ...

Page 14

... HBC, or HCA) have become static (fixed to “H” or “L”). time period. Once placed in T SPND period, before the IC T WAIT threshold -LV before the internal reset T SPND period. (See T WAIT Figure 7): Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 15

... The output will be released ~40 s later. The output will then follow the PWM input once again. Analog Integrated Circuit Device Data Freescale Semiconductor CONTROLLED BRAKE MODE The controlled brake mode prevents high Back-EMF voltages from being created when decelerating the motor to change direction. When the DIR command changes state, all three phases are held low for the time period “ ...

Page 16

... DIR CW CCW; Hall Signals (Hx + < Hx-), H = (Hx + > Hx-); PWM Enable Disable RUN = L, Internal Reset = H, All protections = “L” (Negated). When PWM is Disabled (H), the output will be in slow decay mode on the high-side with Synchronous Rectification. 34929 16 LOGIC COMMANDS AND REGISTERS Hall CA PWM TACH 3XTACH Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 17

... Commanding a “Stop” state from a “Run” state will always result in a transition through the “Controlled Brake” state (to prevent high voltage Back-EMF), before changing to OFF (high-Z). Analog Integrated Circuit Device Data Freescale Semiconductor Current Short Reset ...

Page 18

... Gate Drive ILIM UVLO TLIM V O HAB G Control Logic HBC HCA Stall Det Figure 15. Simple Application Circuit BDLC MOTOR Q5 14 PHC 17 PHB 15 Q6 PHA 16 LSS 18 ISENS V+ PGND 23 1 HAB HAB- 4 HBC+ 3 HBC- 2 HCA+ 1 HCA- Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 19

... For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGING PACKAGE DIMENSIONS QFN SUFFIX 24-PIN PLASTIC PACKAGE 98ARH99033A ISSUE C PACKAGING PACKAGE DIMENSIONS 34929 19 ...

Page 20

... PACKAGING PACKAGE DIMENSIONS 34929 20 QFN SUFFIX 24-PIN PLASTIC PACKAGE 98ARH99033A ISSUE C Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 21

... REVISION DATE DESCRIPTION OF CHANGES • Implemented Revision History page 7/2005 6.0 • Updated to the Freescale format • Changed status to Advance Analog Integrated Circuit Device Data Freescale Semiconductor REVISION HISTORY REVISION HISTORY 34929 21 ...

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... REVISION HISTORY 34929 22 Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 23

... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...

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