MTD6505 MICROCHIP [Microchip Technology], MTD6505 Datasheet - Page 8

• Manufacturer Part Number: MTD6505
• Description: Sinusoidal Sensorless 3-Phase Brushless DC Fan Motor Driver
• Manufacturer: MICROCHIP [Microchip Technology]

MTD6505
Note: Unless indicated, T
FIGURE 2-7:
Resistance vs. Temperature.
FIGURE 2-8:
Temperature.
3.0
The descriptions of the pins are listed in
TABLE 3-1:
DS22281A-page 8
Legend: I = Input; O = Output
Number
Pin
10
11
5.5
5.5
4.5
4.5
3.5
3.5
2.5
2.5
1.5
0.5
1
2
3
4
5
6
7
8
9
7
7
6
6
5
5
4
4
3
3
2
2
1
0
6
6
5
5
4
4
3
3
2
2
1
0
-40 -25 -10 5
-40 -25 -10 5
PIN DESCRIPTIONS
V
V
DD
DD
= 2V
= 2V
V
V
Type
DD
DD
—
—
—
—
O
O
O
O
I
I
I
= 2V
= 2V
MTD6505 PIN FUNCTION TABLE
Temperature (C°)
Temperature (C°)
20 35 50 65 80 95 110 125
Outputs R
Supply Current vs.
20 35 50 65 80 95 110 125
V
V
DD
DD
A
R
Name
OUT1
OUT2
OUT3
V
PWM
GND
V
DIR
PROG
= +25°C, V
= 5.5V
= 5.5V
FG
EP
BIAS
DD
V
ON
DD
Motor speed indication output
Km parameter setting with external resistors, see
Internal regulator output (for decoupling only)
Single phase coil output pin
Single phase coil output pin
Negative voltage supply (ground)
Single phase coil output pin
Positive voltage supply for motor driver
Motor Rotation Direction
PWM input signal for speed control
Exposed pad (can be connected to the ground plan for better thermal dissipation)
= 5.5V
Low Side
- Forward direction: connect pin to GND or leave floating
- Reverse direction: connect pin to V
DD
Table
= 5.5V to 2.0V, OUT1, 2, 3 and PWM open.
3-1.
FIGURE 2-9:
Temperature.
FIGURE 2-10:
Temperature.
60
60
50
50
40
40
30
30
20
20
10
-10
-10
-15
-15
-20
-20
-25
-25
-30
-30
-35
-40
0
-5
-5
0
0
-40 -25 -10 5
Function
-40 -25 -10 5
BIAS
V
V
V
V
DD
DD
DD
DD
= 5.5V
= 5.5V
= 2V
= 2V
Temperature (C°)
Temperature (C°)
Table 4-2
Stand-By Current vs.
PWM Pull-Up Current vs.
20 35 50 65 80 95 110 125
20 35 50 65 80 95 110 125
 2011 Microchip Technology Inc.
V
V
DD
DD
for values
= 2V
= 5.5V