MCP8024
3-Phase Brushless DC (BLDC) Motor Gate Driver
with Power Module
Features:
• Three Half-bridge Drivers Configured to Drive
External High-Side NMOS and Low-Side NMOS
MOSFETs:
- Independent input control for high-side
NMOS and low-side NMOS MOSFETs
- Peak output current: 0.5A @ 12V
- Shoot-through protection
- Overcurrent and short circuit protection
• Adjustable Output Buck Regulator (750 mW)
• Fixed Output Linear Regulators:
- 5V @ 20 mA
- 12V @ 20 mA
• Internal Bandgap Reference
• Three Operational Amplifiers for Motor Phase
Current Monitoring and Position Detection
• Overcurrent Comparator
• Two Level Translators
• Operational Voltage Range 6 - 40V
• Undervoltage Lockout (UVLO): 6V
• Overvoltage Lockout (OVLO): 28V
• Transient (100 ms) Voltage Tolerance: 48V
• Extended Temperature Range: T
A
-40 to +150°C
• Thermal Shutdown
Description:
The MCP8024 is a 3-Phase Brushless DC (BLDC)
power module. The MCP8024 device integrates three
half-bridge drivers to drive external NMOS/NMOS
transistor pairs configured to drive a 3-phase BLDC
motor, a comparator, a voltage regulator to provide bias
to a companion microcontroller, power monitoring
comparators, an overtemperature sensor, two level
translators and three operational amplifiers for motor
current monitoring.
The MCP8024 has three half-bridge drivers capable of
delivering a peak output current of 0.5A at 12V for
driving high-side and low-side NMOS MOSFET
transistors. The drivers have shoot-through,
overcurrent, and short-circuit protection.
The MCP8024 buck converter is capable of delivering
750 mW of power for powering a companion
microcontroller. The buck regulator may be disabled if
not used. The on-board 5V and 12V low dropout
voltage regulators are capable of delivering 20 mA of
current.
The MCP8024 operation is specified
temperature range of -40°C to +150°C.
over
a
Package options include the 40-lead 5x5 QFN and 48-
lead 7x7 TQFP.
Applications:
• Automotive Fuel, Water, Ventilation Motors
• Home Appliances
• Permanent Magnet Synchronous Motor (PMSM)
Control
• Hobby Aircraft, Boats, Vehicles
Related Literature:
• AN885, “Brushless DC (BLDC) Motor Fundamen-
tals”, DS00885, Microchip Technology Inc., 2003
• AN1160, “Sensorless BLDC Control with Back-
EMF Filtering Using a Majority Function”,
DS01160, Microchip Technology Inc., 2008
• AN1078, “Sensorless Field Oriented Control of a
PMSM”, DS01078, Microchip Technology Inc.,
2010
2013 Microchip Technology Inc.
DS20005228A-page 1
MCP8024
1.0
ELECTRICAL
CHARACTERISTICS
ESD and Latch-up protection:
V
DD
, HV_IN1 pins
12
kV HMM and
750V CDM
All other pins ......................
4 kV HBM and
750V CDM
Latch-up protection - all pins............................... > 100 mA
Absolute Maximum Ratings †
Input Voltage, V
DD
........................................................+46.0V
Input Voltage, < 100 ms Transient ...............................+48.0V
Internal Power Dissipation ...........................Internally-Limited
Operating Ambient Temperature Range .......-40°C to +150°C
Operating Junction Temperature
(Note 1).....-40°C
to +160°C
Transient Junction Temperature* ................................ +170°C
Storage temperature
(Note 1)
.......................-55°C to +150°C
Digital I/O .......................................................... -0.3V to 5.5V
LV Analog I/O .................................................... -0.3V to 5.5V
† Notice:
Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
* Notice:
Transient junction temperatures should not
exceed one second in duration. Sustained junction
temperatures above 170°C may impact the device
reliability.
AC/DC CHARACTERISTICS
El
ectrical Spe
cifications:
Unless otherwise noted T
J
= -40°C to +150°C.
Parameters
Power Supply Input
Input Operating Voltage
Transient Maximum Voltage
Input Quiescent Current
Symbol
V
DD
V
DDmax
I
Q
Min.
6.0
6.0
—
—
—
—
—
—
—
0
—
1.26
—
—
—
—
0
0
Typ.
—
—
—
—
171
197
200
200
900
—
1
—
—
500
30
0.2
—
—
Max.
28.0
40
48
—
220
—
—
500
—
5.5
—
—
0.54
—
100
—
5.5
V
OUT5
Units
V
V
A
Operating
Shutdown
< 100 ms
Conditions
V
DD
= 13V,
disabled, CE = 0V, T
J
= 25°C
disabled, CE = 0V, T
J
= 85°C
disabled, CE = 0V, T
J
= 130°C
disabled, CE = 0V, T
J
= 150°C
active, CE > V
DIG_HI_TH
V
DS
< 50 mV
Digital Input/Output
Digital Open-Drain Drive
Strength
Digital Input Rising Threshold
Digital Input Falling Threshold
Digital Input Hysteresis
Digital Input Current
Analog Low-Voltage Input
Analog Low-Voltage Output
BIAS GENERATOR
+12V Regulated Charge Pump
Charge Pump Current
Charge Pump Voltage
Charge Pump Start
Note 1:
DIGITAL
I/O
DIGITAL
IOL
V
DIG_HI_TH
V
DIG_LO_TH
V
DIG_HYS
I
DIG
ANALOG
VIN
ANALOG
VOUT
V
mA
V
V
mV
µA
V
V
V
DIG
= 3.0V
V
DIG
= 0V
Excludes high voltage
Excludes high voltage
I
CP
V
CP
CP
START
20
+10
11.0
—
2 * V
DD
11.5
—
—
—
mA
V
V
V
DD
= 9.0V
V
DD
= 9.0V, I
CP
= 20 mA
V
DD
falling
2:
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction to air (i.e., T
A
, T
J
,
JA
). Exceeding the
maximum allowable power dissipation may cause the device operating junction temperature to exceed the
maximum 160°C rating. Sustained junction temperatures above 150°C can impact the device reliability
and OTP data retention.
1000 hour cumulative maximum for OTP data retention (typical).
2013 Microchip Technology Inc.
DS20005228A-page 5
Embedded System
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