|
|
Part: FAN8727
Category:
Power Management
-> Motor Controller/Drivers
-> DC Motor drivers/Controllers
-> DC Motor Drivers
Description: 3-Phase BLDCM + 4CH BTL Driver
Company: Fairchild Semiconductor
Datasheet: Download FAN8727 datasheet File size : 400 kB
Request For quote: Find where to buy FAN8727
Datasheet text preview:
www.fairchildsemi.com
FAN8727
Spindle + 4-CH Motor Drive IC
Features
· · · · · · · · · · · · Built-in Power Save Circuit Built-in Current Limit Circuit Built-in Thermal Shutdown Circuit (TSD) Built-in Hall Bias Built-in FG Signal Output Circuit Built-in Rotational Direction Detecting Circuit Built-in Protection Circuit For Reverse Rotation Built-in Short Brake Circuit Built-in Normal OP-AMP Built-in 4-CH Balanced Transformerless (BTL) Driver Built-in BTL MUTE Circuit (CH1-2, CH3 and CH4) Corresponds to 3.3V DSP
Description
The FAN8727 is a monolithic integrated circuit suitable for a 4-CH motor driver which drives the tracking actuator, focus actuator, sled motor, loading motor and 3-phase BLDC spindle motor of the MDP/CAR-MD/CAR-NAVIGATION system. 48-QFPH-1414
Typical Applications
· · · · Mini Disk Player Digital Video Disk Player Car Mini Disk Player Car Navigation System
Ordering Information
Device Package Operating Temperature -35°C ~ +85°C FAN8727 48-QFPH-1414
Rev. 1.0.2
©2002 Fairchild Semiconductor Corporation
FAN8727
Pin Assignments
BTLSNGD
MUTE12
MUTE3 38
48 VH FG ECR EC 1 2 3 4 5 6
47
46
45
44
43
42
41
40
39
MUTE4 37 36 35 34 33 32 31 DO4 + DO4 - AVM3 DO3 + DO3 - BTLPGND2 30 29 28 27 26 25
VCC2 PC1
FAN8727
SI GGND VM CS1 SS DI R SB
7 8 9 10 11 12 13 PWRGND 14 A3 15 A2 16 A1 17 OPIN+ 18 OPIN- 19 OPOUT 20 VCC1 21 AVM12 22 DI4 23 DI3 24 DI2
AVM4
BIAS
H3 +
H2 +
H1 +
H3 -
H2 -
H1 -
BTLPGND1 DO2 + DO2 - DO1 + DO1 - DI1
2
FAN8727
Pin Definitions
Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Pin Name VH FG E CR EC V CC 2 P C1 SIGGND VM CS1 S/S DIR SB PWRGND A3 A2 A1 OPIN+ OPINOPOUT VCC 1 AVM12 D I4 D I3 D I2 D I1 DO1DO1+ DO2DO2+ BTLPG ND1 BTLPG ND2 DO3DO3+ I/O I O I I I I O I O O O I I O I I I I O O O O O O Hall Bias FG Signal Output Torque Control Reference Torque Control Signal Supply Voltage Phase Compensation Capacitor Signal Ground Motor Supply Voltage Current Sensor Start/s top 3-Phase Rotational Direction Output Short Brake Power Ground 3-Phase Output 3 3-Phase Output 2 3-Phase Output 1 OP-AMP Input (+) OP-AMP Input (-) OP-AMP Output Supply Voltage BTL CH1, 2 Motor Supply Voltage BTL Drive Input 4 BTL Drive Input 3 BTL Drive Input 2 BTL Drive Input 1 BTL Drive 1 Output (-) BTL Drive 1 Output (+) BTL Drive 2 Output (-) BTL Drive 2 Output (+) BTL Power Ground 1 BTL Power Ground 2 BTL Drive 3 Output (-) BTL Drive 3 Output (+) Pin Function Description
3
FAN8727
Pin Definitions (Continued)
Pin Number 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Pin Name AVM3 DO4DO4+ MUTE4 MUTE3 MUTE12 AVM4 BIAS BTLSGND H1H1+ H2H2+ H3H3+ I/O O O I I I I I I I I I Pin Function Description BTL CH3 Motor Supply Voltage BTL Drive 4 Output (-) BTL Drive 4 Output (+) BTL Drive Mute CH4 BTL Drive Mute CH3 BTL Drive Mute CH1, 2 BTL CH4 Motor Supply Voltage BTL Bias Voltage BTL Drive Signal Ground Hall1(-) Input Hall1(+) Input Hall2(-) Input Hall2(+) Input Hall3(-) Input Hall3(+) Input
4
FAN8727
Internal Block Diagram
BTLSGND
MUTE3
38
48
47
46
45
44
43
42
41
40
MUTE12
39
VH FG ECR EC VCC2 PC1
1
Hall Bias
MUTE12 MUTE3 MUTE4
MUTE4
37
AV M 4
BIAS
H3+
H3-
H2+
H2-
H1+
H1-
36
DO4+ DO4AVM3 DO3+ DO3BTLPGND2
2
FG Generator
35
3
Hall Amp
TSD Detection
AVM4
34
4
33
5
32
Logic
6
AVM3 31
Absolute Values
VM CS1
Current Sense Amp
Reverse Rotation
AVM12
Output Current Limit
SIGGND VM CS1 SS DIR SB
7
30
BTLPGND1 DO2+ DO2DO1+ DO1DI1
8
29
9
Short Brake
AVM12
Distributor
28
10
27
11
26
12
25
13
14
15
16
17
18
19
20
21
22
23
24
PWRGND
OPOUT
AVM12
OPIN+
OPIN-
VCC1
A3
DI4
DI3
DI2
A2
A1
5
Others parts begin by fa
FA-1 FA-2 FA-3 FA-4 FA-5 FA-6 FA-7 FA-8 FA-9 FA-10 FA-11 FA-12 FA-13 FA-14 FA-15 FA-16 FA-17
|
|
|
