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PDF MTD6502B Data sheet ( Hoja de datos )
| Número de pieza | MTD6502B | |
| Descripción | 5V 3-Phase BLDC Sinusoidal Sensorless Fan Motor Driver | |
| Fabricantes | Microchip | |
| Logotipo |  |
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MTD6502B
5V 3-Phase BLDC Sinusoidal Sensorless Fan Motor Driver
Features:
• Position Sensorless BLDC Drivers
(No Hall Sensor Required)
• 180° Sinusoidal Drive, for High Efficiency and Low
Acoustic Noise
• Support 2V to 5.5V Power Supplies
• Direction Control:
- Forward direction: connect DIR pin to GND or
leave floating
- Reverse direction: connect DIR pin to VDD
• Speed Control through Power Supply Modulation
(PSM) and/or Pulse-Width Modulation (PWM)
• Built-in Frequency Generator (FG Output Signal)
• Built-in Lock-up Protection and Automatic
Recovery Circuit (External Capacitor not
Necessary)
• Built-in Over Current Limitation
• Built-in Thermal Shutdown Protection
• No External Tuning Required
• Available Packages:
- 3 mm x 3 mm TDFN-10
Applications:
• Notebook CPU Cooling Fans
• 5V 3-Phase Brushless DC Motors
Description:
The MTD6502B device is a 3-phase full-wave driver for
brushless sensorless DC motors. It features 180°
sinusoidal drive, high torque output and silent drive.
With adaptive features, parameters and a wide range
of power-supplies (2V to 5.5V), the MTD6502B device
is intended to cover a wide range of motor
characteristics, while requiring minimum external com-
ponents. Speed control can be achieved through either
power supply modulation or pulse-width modulation
(using the PWM digital input pin).
With the compact packaging and minimum bill-of-
material (integrated power transistors, no Hall sensor,
no external tuning), the MTD6502B is best suited for
low-cost fan applications requiring high efficiency and
low acoustic noise, such as notebook CPU cooling
fans. Frequency generator (FG) output enables the
precision speed control in closed-loop applications.
The MTD6502B driver includes a lock-up protection
mode, which turns off the output current when the
motor is under lock condition, and an automatic recov-
ery that enables the fan to run when the lock condition
www.DataSheet.co.kr
is removed. The motor overcurrent limitation and ther-
mal-shutdown protection are included for safety-
enhanced operations.
The MTD6502B is available in a compact thermally-
enhanced 3 mm x 3 mm TDFN package.
Package Types
MTD6502B
3x3 TDFN*
FG 1
GND 2
VDD 3
OUT1 4
OUT2 5
10 PWM
9 DIR
EP
11
8 VCC
7 OUT3
6 GND
* Includes Exposed Thermal Pad (EP); see Table 2-1.
2011 Microchip Technology Inc.
DS25003A-page 1
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
MTD6502B
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Power Supply Voltage (VCC_MAX) ...................... -0.7 to +7.0V
Maximum Output Voltage (VOUT_MAX) ............... -0.7 to +7.0V
Maximum Output Current(2) (IOUT_MAX) ....................1000 mA
FG Maximum Output Voltage (VFG_MAX) ........... -0.7 to +7.0V
FG Maximum Output Current (IFG_MAX) .....................5.0 mA
VDD Maximum Voltage (VDD_MAX) ..................... -0.7 to +4.0V
PWM Maximum Voltage (VPWM_MAX) ................ -0.7 to +7.0V
Allowable Power Dissipation(2)(PD_MAX).........................1.5W
Maximum Junction Temperature (TJ) .......................... +150°C
† 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.
Note 1: Reference PCB, according to JEDEC
standard EIA/JESD 51-9.
2: IOUT is also internally limited, according
to limits defined in the Electrical Charac-
teristics.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are established for TA = +25°C
Parameters
Sym
Min
Typ Max Units
Conditions
Power Supply Voltage
Power Supply Current
OUTx High Resistance
OUTx Low Resistance
OUTx Total Resistance
VDD Output Voltage
PWM Input Frequency
PWM Input H Level
PWM Input L Level
PWM Internal Pull-Up Current
DIR Internal Pull-Down Current
FG Output Pin Low Level Voltage
FG Output Pin Leakage Current
Lock Protection
Operating Time
VCC
IVCC
RON(H)
RON(L)
RON(H+L)
VDD
fPWM
VPWM_H
VPWM_L
IPWM_L
IDIR
VOL_FG
ILH_FG
TRUN
2
—
—
—
—
—
—
1
0.8*VCC
0
—
—
—
—
—
— 5.5
50 —
0.75
1
0.75
1
1.5 2
3—
VCC – 0.2
—
—
100
— VCCw w w . D a t a S h e e t . c o . k r
— 0.2*VCC
— 55
20 —
— 0.25
— 10
0.5 —
V
µA
Ω
Ω
Ω
V
V
kHz
V
V
µA
µA
V
µA
s
PWM = 0, VCC = 5V
IOUT = 0.5A, VCC = 5V
IOUT = 0.5A, VCC = 5V
IOUT = 0.5A, VCC = 5V
VCC = 3.3V to 5.5V
VCC < 3.3V
PWM = 0
IFG = -1 mA
VFG = 5.5V
Lock Protection Waiting Time
TWAIT
4.5
5 5.5 s
Overcurrent Protection
IOC_MOT
—
750
— mA
Thermal Shutdown
TSD — 170 — °C
Thermal Shutdown Hysteresis
TSD_HYS
—
25
— °C
2011 Microchip Technology Inc.
DS25003A-page 5
Datashee
5 Page 
4.0 PACKAGING INFORMATION
4.1 Package Marking Information
10-Lead TDFN (3x3x0.9 mm)
XXXX
YYWW
NNN
PIN 1
Device
MTD6502B-LC1-00
MTD6502B-LC1-01
MTD6502B-LC1-02
MTD6502B
Code
AAAA
AAAB
AAAC
Example
AAAA
1104
256
PIN 1
www.DataSheet.co.kr
Legend:
XX...X
Y
YY
WW
NNN
e3
*
Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
2011 Microchip Technology Inc.
DS25003A-page 11
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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| PDF Descargar | [ Datasheet MTD6502B.PDF ] | |
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