Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
General Description
The AM4963/AM4963R is a full wave driver IC with
direct PWM control function and thermal resistor
control function. It is used for single phase motor and
is capable of speed control by PWM pulse and
thermal resistor at the same time.
The AM4963/AM4963R is available in HTSSOP-14
and SSOP-16 packages.
Features
•
•
•
•
•
•
•
•
•
•
•
•
The Motor Speed is Controlled by PWM Pulse
Directly and Thermal Resistor at the Same Time
Low Corner Temperature (30°C) Adjustable
High Corner Temperature (38°C) Adjustable
Full Speed when Thermal Resistor Shorten
Built-in Triangle Wave Circuit without Extra
Oscillation Capacitor
Built-in Minimal Speed Setup Circuit
Alpha Slope Adjustable
Rotation Speed Indicator (FG)
Rotation/lock State Indicator (RD)
Built-in Temperature Control Circuit
Built-in Thermal Shutdown Circuit
Lock Protection and Auto-restart
Applications
•
•
CPU Cooler Fan in PC
Brushless DC Motor Driver
HTSSOP-14
SSOP-16
Figure 1. Package Types of AM4963/AM4963R
Sep. 2011
Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Pin Configuration
GH Package
(HTSSOP-14)
PGND
OUT2
VCC
VMIN
PWM
CF
FG/RD
RT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
PGND
OUT1
TH
CT
RADJ
HIN-
HIN+
TL
GS Package
(SSOP-16)
PGND
OUT2
VCC
VMIN
PWM
CF
FG/RD
RT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OUT1
TH
SGND
CT
RADJ
HIN-
HIN+
TL
Figure 2. Pin Configuration of AM4963/AM4963R (Top View)
Sep. 2011
Rev. 1. 0
2
BCD Semiconductor Manufacturing Limited
Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Pin Description
Pin Number
HTSSOP-14 SSOP-16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
3
4
5
6
7
8
9
10
11
12
13
15
16
1
14
Pin Name
OUT2
VCC
VMIN
PWM
CF
FG/RD
RT
TL
HIN+
HIN-
RADJ
CT
TH
OUT1
PGND
SGND
Driver output2
Power
Minimum duty setting
Function
PWM pulse adjustable input
PWM Filter capacitor input
Rotation speed indicator or Rotation/lock state indicator
Thermal sensitive
Low temperature set resistor
Hall sensor input+
Hall sensor input-
Alpha slope adjustable
Lock and rotation setting capacitor terminal
High temperature set resistor
Driver output1
Power ground
Signal ground
Sep. 2011
Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Functional Block Diagram
V+
104k
VMIN
3 (4)
Triangle Wave
Thermal
Shutdown
6 (7)
FG
42k
11 (12)
V+
90k
17k
54k
V+
51k
V+
6 (7)
93k
Pre-driver
RD
RADJ
PWM
4 (5)
56k
18k
2 (3)
VCC
CF
RT
TL
TH
HIN+
HIN-
5 (6)
7 (8)
8 (9)
13 (15)
9 (10)
10 (11)
V
REG
Control
Circuit
V+
1 (2)
OUT2
Hysteresis Amp
Lock Shutdown
and
Auto Restart
12 (13)
(1)
14 (16)
OUT1
CT
A (B)
A for HTSSOP-14
B for SSOP-16
PGND
Figure 3. Functional Block Diagram of AM4963/AM4963R
Truth Table
Items
1
2
3
4
5
6
IN-
H
L
H
L
H
L
IN+
L
H
L
H
L
H
L
H
VCF
L
L
H
CT
OUT1
H
L
Off
L
H
Off
OUT2
L
H
L
Off
Off
H
FG
L
Off
L
Off
L
Off
H (OFF)
L (ON)
RD
Mode
Rotation
PWM Off
Rotation
Recirculation
PWM Off
Lock Protection
Sep. 2011
Rev. 1. 0
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BCD Semiconductor Manufacturing Limited
Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Ordering Information
AM4963
Circuit Type
-
G1: Green
Blank: AM4963
R: AM4963R
Package
GH: HTSSOP-14
GS: SSOP-16
Blank: Tube
TR: Tape & Reel
Package
Temperature
Range
Part Number
AM4963GH-G1
Marking ID
AM4963GH-G1
AM4963GH-G1
AM4963RGH-G1
AM4963RGH-G1
AM4963GS-G1
AM4963GS-G1
AM4963RGS-G1
AM4963RGS-G1
Packing
Type
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
HTSSOP-14
AM4963GHTR-G1
AM4963RGH-G1
-30 to 90°C
AM4963RGHTR-G1
AM4963GS-G1
AM4963GSTR-G1
AM4963RGS-G1
AM4963RGSTR-G1
SSOP-16
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.
Sep. 2011
Rev. 1. 0
5
BCD Semiconductor Manufacturing Limited
