Diodes AM4963, AM4963R User Manual
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Data Sheet
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 BCD Semiconductor Manufacturing Limited
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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
PGND
OUT2
VCC
VMIN
PWM
CF
FG/RD
RT
Figure 2. Pin Configuration of AM4963/AM4963R (Top View)
1
2
3
4
5
6
7
GS Package
(SSOP-16)
1
2
3
4
5
6
7
8
14
13
12
16
15
14
13
12
11
10
11
10
9
8
9
PGND
OUT1
TH
CT
RADJ
HIN-
HIN+
TL
OUT1
TH
SGND
CT
RADJ
HIN-
HIN+
TL
Sep. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
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Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Pin Description
Pin Number
HTSSOP-14 SSOP-16
1 2 OUT2 Driver output2
2 3 VCC Power
3 4 VMIN Minimum duty setting
4 5 PWM PWM pulse adjustable input
5 6 CF PWM Filter capacitor input
Pin Name Function
6 7 FG/RD Rotation speed indicator or Rotation/lock state indicator
7 8 RT Thermal sensitive
8 9 TL Low temperature set resistor
9 10 HIN+ Hall sensor input+
10 11 HIN- Hall sensor input-
11 12 RADJ Alpha slope adjustable
12 13 CT Lock and rotation setting capacitor terminal
13 15 TH High temperature set resistor
14 16 OUT1 Driver output1
1 PGND Power ground
14 SGND Signal ground
Sep. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
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Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Functional Block Diagram
VMIN
RADJ
PWM
CF
RT
TL
TH
HIN+
HIN-
3 (4)
11 (12)
V+
4 (5)
5 (6)
7 (8)
8 (9)
13 (15)
9 (10)
10 (11)
V+
90k
54k
17k
104k
42k
V
REG
V+
Hysteresis Amp
V+
51k
56k
Triangle Wave
93k
18k
Control
Circuit
Lock Shutdown
and
Auto Restart
12 (13)
CT
Thermal
Shutdown
Pre-driver
V+
(1)
PGND
6 (7)
6 (7)
2 (3)
1 (2)
14 (16)
A (B)
A for HTSSOP-14
B for SSOP-16
Figure 3. Functional Block Diagram of AM4963/AM4963R
Truth Table
Items IN- IN+ VCF CT OUT1 OUT2 FG RD Mode
FG
RD
VCC
OUT2
OUT1
1 H L H L L Rotation
L
2 L H
L
3 H L Off L L
H
4 L H
L H Off PWM Off
L (ON)
L Off Off
Rotation
Recirculation
PWM Off
5 H L H Off L
6 L H
L H
Off H Off
H (OFF) Lock Protection
Sep. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
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Data Sheet
Single Phase Full Wave Direct PWM Motor Driver AM4963/AM4963R
Ordering Information
AM4963 -
Circuit Type
G1: Green
Blank: AM4963
Package
R: AM4963R
Package
GH: HTSSOP-14
GS: SSOP-16
Temperature
Range
Part Number Marking ID
AM4963GH-G1 AM4963GH-G1
Blank: Tube
TR: Tape & Reel
Packing
Type
Tube
HTSSOP-14
AM4963GHTR-G1 AM4963GH-G1
AM4963RGH-G1 AM4963RGH-G1
AM4963RGHTR-G1 AM4963RGH-G1
-30 to 90°C
AM4963GS-G1 AM4963GS-G1
AM4963GSTR-G1 AM4963GS-G1
SSOP-16
AM4963RGS-G1 AM4963RGS-G1
AM4963RGSTR-G1 AM4963RGS-G1
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
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 BCD Semiconductor Manufacturing Limited
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