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PDF 34920 Data sheet ( Hoja de datos )

Número de pieza 34920
Descripción Quad H-Bridge Motor Driver
Fabricantes Freescale Semiconductor 
Logotipo Freescale Semiconductor Logotipo



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No Preview Available ! 34920 Hoja de datos, Descripción, Manual

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Advance Information
Document Number: MC34920
Rev. 2.0, 1/2007
2.8 (Typ) Quad H-Bridge
Motor Driver
34920
The 34920 is a multifunctional analog ASIC. The 34920 integrates
two circuits, four H-bridge drivers, a reset circuit in a single IC, and
two DC/DC switching voltage regulators. Input voltage is 21 V to 42
V DC.
Each motor of the two driver blocks can be configured as either a
DC motor driver with pulse width modulation (PWM)-control or a
single bipolar step motor driver. In step motor mode, both drivers are
capable of being operated in the quarter step mode.
In DC motor mode, both bridges in a driver are in parallel, providing
2.4 A of drive current. In step motor mode, each bridge in a driver
drives one phase. Each phase is driven with a bipolar current mode
drive.
Features
• Individual Thermal Limit Protection
• User-Selectable Motors: 2 DC Motors (2.4 A/Motor), 2 Step
Motors (W1-2 Phase Control), 1 DC Motor and 1 Step Motor
• 2 Buck Regulators (Switching @ 200 kHz)
• VV2 Output Voltage Is Programmable to 10 V to 15 V DC
(Externally Set)
• Low-Voltage Detection Reset (VV1 and VVB+)
• Pb-Free Packaging Designated by Suffix Code EI
H-BRIDGE MOTOR DRIVERS
FN SUFFIX
EI SUFFIX (PB-FREE)
98ASB42598B
44-PIN PLCC
ORDERING INFORMATION
Device
MC34920FN/R2
MC34920EI/R2
Temperature
Range (TA)
-40°C to 125°C
Package
44 PLCC
VVB+
VV1 VV2
++
MCU
34920
RESET
SDI
SCLK
CS
DR1PWM
DR2PWM
DR1A
DR2A
DR1B
DC
MOTOR
DC
MOTOR
GND CP1 CP2 VB
DR2B
VVB+
+
Figure 1. 34920 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., 2007. All rights reserved.

1 page




34920 pdf
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 2. Maximum Ratings
All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or
permanent damage to the device.
Ratings
Symbol
Value
Unit
ELECTRICAL RATINGS
VB+ Supply Voltage
VCC Voltage
Bridge Output Current
Maximum Voltage on RESET (1)
ESD Voltage (2)
Human Body Model
Machine Model
THERMAL RATINGS
VVB+
VCC(MAX)
IOUT
VMAXRST
VESD1
VESD2
45
7.0
1.5
VCC - 0.5
±1000
±100
V
V
A
V
V
Storage Temperature
TSTG
-40 to 175
°C
Operating Ambient Temperature
TA
0 to 70
°C
Operating Junction Temperature
Power Dissipation (TA = 25° C) (3)
Pin Soldering Temperature (4)
Thermal Resistance, Junction to Ambient (5)
TJ
PD
TSOLDER
RθJA
135
2.0
220
37
°C
W
°C
°C/W
Notes
1. RESET is an open drain (open collector) output with an internal pull-up resistor.
2. ESD testing is performed in accordance with the Human Body Model (HBM) (CZAP = 100 pF, RZAP = 1500 ), the Machine Model (MM)
(CZAP = 200 pF, RZAP = 0 ), and the Charge Device Model (CDM), Robotic (CZAP = 4.0pF).
3. Maximum power dissipation at indicated ambient temperature in free air with no heatsink used.
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. RθJA is dependent on customer application and PCB layout.
Analog Integrated Circuit Device Data
Freescale Semiconductor
34920
5

5 Page





34920 arduino
TtCcSs-S+CSLKCLK
TIMING DIAGRAMS
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAMS
TcstS-CSLKC-CLSK
nCSS
DDaatataLaltachtecdhoendtheornisirnigseindgge eofdSgCeLKof SCLK
SSCCLLKK
SSDDII
tDTSdsUu
TtDenHdD
BBitt 11
LLSSBB
BBiitt 22
BBitt 33
BBit 44 BBitit55 BBiitt66 BBiitt77 BBiitt88
TTiimmee
Biitt99
BBitt 1100 BBitit111 1 BBiitt112 2 BBitit1313*
SDI Stays at Last Value
MMSSBB
*SDI stays at last value
Figure 4. Serial Connectivity Diagram
VCC
VCC
11.0VV
PoPwoweerr OOnn
Trip Level
VTVVrtiV1pTCleCvel
“GlitGclihtch” RReesspponosense
PowPoewreOr Offff
ShSohrotrtggliltictchhbbeelloow VV1T
forVlteVsCsCthfoarnletPssEtRhSanISTT persist
Trip Level
Trip leVvVel1T
VtVCC
RESET
n RESET
Uunnddeefifnineded
uUndnedfienefdined
tDELAY(pT1lud5seTlapy5e1r0s5i-sm5t 0dsmelSay)
(plus tPERSIST)
TperstiPstEdRelaSyIST
tD((pEpTluLdlsueATlsaYpyet11rPs55iE-s5tR0dS5emlI0aSSyT_m) s
t PERSIST
Tpersist delay
Figure 5. RESET GenerAatisosnuTmimeinsgVDBia+gra>m (VAstsVumBe+s dVVuBr+i>nVgVtBh+Te+eDnutriinrge EpnetirreioPderiod)
Analog Integrated Circuit Device Data
Freescale Semiconductor
34920
11

11 Page







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