HV8549
Motor Driver, Forward/Reverse
Low Saturation Voltage 28V
GENERAL DESCRIPTION
The HV8549 is a 2-channel low saturation voltage
forward/reverse motor driver IC. It is optimal for motor
drive in 12V and 24V system products and can drive
a stepper motor in Full-step.
The output driver block of each H-bridge consists of
N-channel power MOSFETs configured as a H-
bridge to drive the motor windings. Each H-bridge
includes circuitry to regulate or limit the winding
current.
Internal shutdown functions are provided for under-
voltage lockout, and over temperature. A low-power
sleep mode is also provided.
The HV8549 is available in a compact SOIC-10
package.
FEATURES
DMOS output transistor adoption (upper and lower
total Rdson = 0.65 Ω Typ.).
VCC Max = 28V, IO Max = 1.2A, IO RMS = 0.8A.
4V to 28V operating supply voltage range (The
control system power supply is unnecessary.).
The compact package (SOIC-10) is adopted.
Current consumption 0 when standby mode.
TYPICAL APPLICATIONS
Stage Lighting
Refrigerator
Flatbed Scanner, Document Scanner
POS Printer, Label Printer
PoE Point of Sales Terminal
Clothes Dryer
Vacuum Cleaner
Time Recorder
TYPICAL APPLICATION CIRCUIT
Figure 1
Typical Application Circuit
HV8549 Rev1.4
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HV8549
Motor Driver, Forward/Reverse
Low Saturation Voltage 28V
PIN CONFIGURATION
Package
Pin Configuration (Top View)
SOIC-10
PIN DESCRIPTION
No.
1
2
3
4
5
6
7
8
9
10
Pin
V
CC
ENA
IN1
IN2
NC
GND
OUT4
OUT3
OUT2
OUT1
Description
Power-supply voltage pin. A 10-uF (minimum) ceramic bypass capacitor to GND is
recommended.
Motor drive control enable pin. “0” stand-by current when ENA=L. Output is
corresponding to input control logic when ENA=H.
Logic input pin of OUT1 and OUT2. Internal pull-down.
Logic input pin of OUT3 and OUT4. Internal pull-down.
No connection.
Device ground.
Driving output pin. Motor coil is connected between terminal OUT3 (pin8).
Driving output pin. Motor coil is connected between terminal OUT4 (pin7).
Driving output pin. Motor coil is connected between terminal OUT1 (pin10).
Driving output pin. Motor coil is connected between terminal OUT2 (pin9).
ORDERING INFORMATION
Industrial Range: -40°C to +125°C
Package
Order Part No.
HV8549MC-AH
HV8549CC-13GTR
HV8549CC-GT
SOIC-10, Pb-Free
SOIC-10, Pb-Free
SOIC-10, Pb-Free
QTY
4000/Reel
4000/Reel
100/Tube
HV8549 Rev1.4
KEYSEMI CORPORATION
2
HV8549
Motor Driver, Forward/Reverse
Low Saturation Voltage 28V
FUNCTIONAL BLOCK DIAGRAM
Figure 2
Stepper Motor Drive
HV8549 Rev1.4
KEYSEMI CORPORATION
3
HV8549
Motor Driver, Forward/Reverse
Low Saturation Voltage 28V
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
Max
V
OUT
V
IN
I
GND
P
D
Rth
JA
T
J
T
S
T
L
Definition
Maximum power supply voltage (V
CC
)
Output voltage (OUT1, OUT2, OUT3, OUT4)
Input voltage (EN, IN1, IN2)
Maximum GND pin sink/source current
Package power dissipation @ T
A
≤
+25°C
Thermal resistance, junction to ambient
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
SOIC-10
SOIC-10
Min.
-0.3
-0.3
-0.3
---
---
---
---
-55
---
Max.
+30
+30
+6
+1.2
1.0
80
150
150
300
°C
A
W
°C/W
Units
V
Note:
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute
voltages referenced to COM. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions.
RECOMMENDED OPERATION CONDITIONS
Symbol
V
CC
V
IH
V
IL
V
LO
T
A
Definition
Power supply voltage (V
CC
)
Logic “1” input voltage (EN, IN1, IN2)
Logic “0” input voltage (EN, IN1, IN2)
Low-side output voltage
Ambient temperature
Min.
4.0
1.8
-0.3
0
- 40
Max.
28
5.5
+0.7
V
CC
125
°C
Units
V
Note:
The input/output logic timing diagram is shown in Fig. 1. For proper operation the device should be used within the recommended conditions.
The V
S
offset rating is tested with all supplies biased at a 15 V differential.
HV8549 Rev1.4
KEYSEMI CORPORATION
4
HV8549
Motor Driver, Forward/Reverse
Low Saturation Voltage 28V
DYNAMIC ELECTRICAL CHARACTERISTICS
V
CC
= 12 V and T
A
= 25°C unless otherwise specified.
Symbol
t
on
t
off
t
r
Parameter
Turn-on propagation delay
Turn-off propagation delay
Turn-on rise time
Condition
V
CC
= 12 / 24 V
V
CC
= 12 / 24 V
V
CC
= 12 / 24 V, 16Ω
to GND, 10% to 90%
V
CC
V
CC
= 12 / 24 V, 16Ω
to GND, 90% to 10%
V
CC
V
CC
= 12 / 24 V
Min.
170
80
160
Typ.
200
100
200
Max.
230
120
240
ns
Unit
t
f
DT
Turn-off fall time
Deadtime, LS turn-off to HS turn-on &
HS turn-on to LS turn-off
220
220
260
270
300
320
STATIC ELECTRICAL CHARACTERISTICS
V
CC
= 12 V and T
A
= 25°C unless otherwise specified.
Symbol
V
CC
V
CCUV+
V
CCUV-
V
IH
V
IL
I
CC0
I
CC1
I
IN
T
SD
T
SD_HYS
R
DSON
I
OLEAK
V
D
Parameter
Power supply voltage
V
CC
supply undervoltage positive going
threshold
V
CC
supply undervoltage negative going
threshold
Logic “1” input voltage
Logic “0” input voltage
Quiescent current (standby mode)
Operating current (no load)
Input current
Thermal shutdown temperature
Thermal shutdown hysteresis
Output ON resistance
(high-side and low-side total)
Output leakage current
Diode forward voltage
I
OUT
= 0.8A
V
O
= 30V
I
D
= 0.8A
550
---
---
V
CC
= 12 / 24 V,
EN = ”0”
V
CC
= 12 / 24 V,
EN = ”1”
V
CC
= 12 / 24 V,
V
IN
= 5V
V
CC
= 12 / 24 V
Condition
Min.
4.0
3.5
3.1
1.8
---
---
---
40
150
Typ.
---
3.7
3.3
---
---
---
1.5
56
160
25
650
---
1.0
900
10
1.2
Max.
28
3.95
3.6
---
0.7
1
2.3
65
170
µA
mA
µA
°C
°C
mΩ
µA
V
V
Unit
V
HV8549 Rev1.4
KEYSEMI CORPORATION
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