Freescale Semiconductor
Technical Data
Document order number:
MPC17C724
Rev 2.0, 12/2005
0.4 A Dual H-Bridge Motor
Driver IC
The 17C724 is a compact monolithic dual channel H-Bridge power
IC, ideal for portable electronic applications containing bipolar
stepper motors or brush DC motors such as those used in camera
lenses and shutters.
The 17C724 can operate efficiently with supply voltages from 2.7
V to 5.5 V and can provide continuous motor drive currents of 0.4 A
with low RDS(ON) of 1.0
Ω.
It is easily interfaced to low-cost MCUs
via parallel 3.0 V- or 5.0 V-compatible logic and has built-in shoot-
through current protection circuit and undervoltage detector to avoid
malfunction.
The 17C724 has four output control modes: Forward, Reverse,
Brake, and Tri-State (High Impedance). The H-bridge outputs are
designed to be independently PWM’ed at up to 200 kHz for speed/
torque and current control.
Features
• Manufactured in SMOS7 Process Technology
• Built-In 2-Channel H-Bridge Driver
• Provides 4 Driving Modes (Forward, Reverse, Break, High
Impedance)
• Direct Interface to MCU
• Low ON-Resistance, R
DS(ON)
= 1.0
Ω
(Typical)
• Dual Channel Parallel Drive, R
DS(ON)
= 0.5
Ω
(Typical)
•
•
•
•
•
•
•
17C724
MOTOR DRIVER
EP (Pb-FREE) SUFFIX
SCALE 4:1
98ARL10566D
16-Terminal QFN
ORDERING INFORMATION
Device
MPC17C724EP/R2
Temperature
Range (T
A
)
-20°C to 85°C
Package
16 QFN
Output Current Driver (IDR) is 400 mA (Continuous)
Low Power Consumption
Built-In Shoot-Through Current Prevention Circuit
Built-In Low-Voltage Shutdown Circuit
PWM Control Frequency 200 kHz (Max)
Very Compact Size, Comes in 16-Terminal QFN Package (3 x 3 mm Terminal Pitch: 0.5 mm)
Pb-Free Packaging Designated by Suffix Code EP
3.0 V
17C724
VDD
VM
OUT1A
OUT1B
IN1A
MCU
IN1B
IN2A
IN2B
PSAVE
GND
OUT2A
OUT2B
Bipolar
Step
Motor
S
N
Figure 1. 17C724 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., 2005. All rights reserved.
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VDD
PSAVE-
Low-
Voltage
Shutdown
VM1
IN1A
H-Bridge 1
IN1B
VDD
PSAVE
Control
Logic
Level Shifter
Predriver
OUT1A
OUT1B
PGND1
VM2
IN2A
H-Bridge 2
IN2B
OUT2A
OUT2B
LGND
PGND2
PGND2
Figure 2. 17C724 Simplified Internal Block Diagram
17C724
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
TERMINAL CONNECTIONS
TERMINAL CONNECTIONS
Transparent Top View of Package
PGND1
VDD
LGND
14
16
15
PSAVE
13
12
11
10
9
1N1A
1N1B
OUT1A
VM1
1
IN2A
IN2B
OUT1B
VM2
2
3
4
5
6
7
8
OUT2A
PGND2
Figure 3. 17C724 Terminal Connections
Table 1. 17C724 Terminal Definitions
A functional description of each terminal can be found in the Functional Terminal Description section beginning on
page 8.
Terminal
Number
1
2
3
4
5
6, 7
8
9
10
11
12
13
14
15
16
Terminal
Name
IN1A
IN1B
OUT1A
VM1
OUT2A
PGND2
OUT2B
VM2
OUT1B
IN2B
IN2A
PSAVE
LGND
PGND1
VDD
Terminal
Function
Logic
Logic
Output
Power
Output
Ground
Output
Power
Output
Input
Input
Input
Ground
Ground
Logic
Formal Name
Definition
Logic Input Control 1A Logic input control of OUT1A (refer to
Table 5, Truth Table,
page
7).
Logic Input Control 1B Logic input control of OUT1B (refer to
Table 5, Truth Table,
page
7).
H-Bridge Output 1A
Motor Driver Power
Supply 1
H-Bridge Output 2A
Power Ground 2
H-Bridge Output 2B
Motor Driver Power
Supply 2
H-Bridge Output 1B
Output A of H-Bridge channel 1.
Positive power source connection for H-Bridge 1 (Motor Driver Power
Supply)
(1)
.
Output A of H-Bridge channel 2.
High-current power ground 2
(2)
.
Output B of H-Bridge channel 2.
Positive power source connection for H-Bridge 2 (Motor Driver Power
Supply)
(1)
.
Output B of H-Bridge channel 1.
Logic Input Control 2B Logic input control of OUT2B (refer to
Table 5, Truth Table,
page
7).
Logic Input Control 2A Logic input control of OUT2A (refer to
Table 5, Truth Table,
page
7).
Input Enable Control
Logic Ground
Power Ground 1
Logic Circuit Power
Supply
Logic input enable control of H-Bridges to save power.
Low-current logic signal ground
(2)
.
High-current power ground 1
(2)
.
Positive power source connection for logic circuit.
Notes
1. VM1 and VM2 are internally connected.
2. LGND, PGND1, and PGND2 are internally connected.
PGND2
OUT2B
17C724
Analog Integrated Circuit Device Data
Freescale Semiconductor
3
MAXIMUM RATINGS
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
ELECTRICAL RATINGS
Power Supply Voltage (Motor Driver)
Normal Operation (Steady-State)
Transient Conditions
(3)
Logic Supply Voltage
Input Terminal Voltage
Driver Output Current (Continuous)
(4)
Driver Output Current (Peak)
(5)
ESD Voltage
(6)
Human Body Model
Machine Model
TEMPERATURE RATINGS
Storage Temperature
Operating Temperature
Ambient
Operating Junction Temperature
Thermal Resistance (Junction-to-Ambient)
Single-Layer PCB Mounting
(8)
Multi-Layer PCB (2S2P) Mounting
(9)
Terminal Soldering Temperature
(7)
Notes
3.
4.
5.
6.
7.
8.
9.
R
θJA
R
θJMA
T
SOLDER
169
47
260
°C
°C/W
T
A
T
J
- 20 to 85
150 maximum
°C
°C
T
STG
- 40 to 150
°C
V
ESD1
V
ESD2
± 2000
± 200
V
V
M(SS)
V
M(PK)
V
DD
V
IN
I
O
I
OPK
- 0.3 to 6.0
- 0.3 to 6.5
6.0
- 0.3 to V
DD
+ 0.3
400
800
V
V
mA
mA
V
Symbol
Value
Unit
Transient condition within 500 ms.
Continuous output current must not be exceeded and at operating junction temperature below 150°C.
Peak time is for 10 ms pulse width at 200 ms intervals.
ESD testing is performed in accordance with the Human Body Model (C
ZAP
= 100 pF, R
ZAP
= 1500
Ω),
and
the Machine Model
(C
ZAP
= 200 pF, R
ZAP
= 0
Ω).
Terminal 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.
For cases using SEMI G38-87, JEDEC JESD51-2, JESD51-3, JESD51-5, single layer PCB mounting without thermal vias.
For cases using SEMI JEDEC JESD51-6, JESD51-5, JESD51-7, 2S2P PCB mounting with 4 thermal vias.
17C724
4
Analog Integrated Circuit Device Data
Freescale Semiconductor
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics
Characteristics noted under conditions TA = 25°C, V
DD
= VM = 3.0V, unless otherwise noted. Typical values noted reflect the
approximate parameter means at T
A
= 25°C under nominal conditions unless otherwise noted.
Characteristic
POWER INPUT (VDD, PSAVE)
Supply Voltage Range
Motor Driver Supply Voltage
Logic Supply Voltage
Standby Power Supply Current
(10)
V
M
= 3.0 V
V
DD
= 3.0 V
Operating Power Supply Current
(11)
V
DD
= 3.0 V
Logic Input Function
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
PSAVE Terminal Low Level Input Current
(12)
Driver Output ON Resistance
(13)
Low-Voltage Shutdown Detection Voltage
(14)
V
IH
V
IL
I.
IH
I
IL
I
IL
R
DS(ON)
V
DD
DET
I
I
V
M
V
DD
V
MSTBY
2.7
2.7
–
–
3.0
3.0
–
–
5.5
5.5
1.0
1.0
µA
–
V
DD
0.7
–
–
- 1.0
–
–
1.5
40
–
–
–
–
- 30
1.0
2.0
100
–
V
DD
0.3
1.0
–
- 60
1.5
2.5
V
V
µA
µA
µA
Ω
V
µA
V
Symbol
Min
Typ
Max
Unit
V
DDSTBY
I
C
Notes
10. Power SAVE mode.
11. I
C
is the sum of the current of V
DD
monitor block “Low Voltage Detection Module” and the PSAVE pull-up resistor at f
IN
= 200 kHz.
12.
13.
14.
V
DD
= 3.0 V.
I
O
= 375 mA. R
DS(ON)
= R
SOURCE
+ R
SINK
. R
L
= 6.8
Ω.
Detection voltage is defined as when the output becomes high impedance after V
DD
voltage falls and when V
M
= 5.5 V.
17C724
Analog Integrated Circuit Device Data
Freescale Semiconductor
5
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