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PDF AM4962 Data sheet ( Hoja de datos )
| Número de pieza | AM4962 | |
| Descripción | SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER | |
| Fabricantes | BCD | |
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Data Sheet
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
AM4962
General Description
The AM4962 is a full wave driver IC with direct
PWM control function. It is used for single phase
motor and is capable of speed control by PWM pulse.
The AM4962 is available in HTSSOP-14 and
SSOP-16 packages.
Features
• The Motor Speed is Controlled by PWM Pulse
Directly
• Built-in Triangle Wave Circuit Without Extra
Oscillation Capacitor
• Built-in Hall Bias Circuit
• Built-in Minimal Speed Setup Circuit
• Slope K* Adjustable
• Rotation Speed Indication (FG)
• Rotation or Lock State Indication (RD)
• Built-in Thermal Shutdown Circuit
• Lock Protection and Auto-restart
• Output Current Limit
* Slope K is the slope of output PWM duty vs. input
PWM duty
Applications
• CPU Cooler Fan in PC
• Brushless DC Motor Driver
HTSSOP-14
SSOP-16
Figure 1. Package Types of AM4962
Apr. 2011 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
1
1 page  
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
Ordering Information
Data Sheet
AM4962
AM4962
Circuit Type
Package
GH: HTSSOP-14
GS: SSOP-16
-
G1: Green
Blank: Tube
TR: Tape & Reel
Package
HTSSOP-14
SSOP-16
Temperature
Range
Part Number
AM4962GH-G1
-30 to 90°C
AM4962GHTR-G1
AM4962GS-G1
AM4962GSTR-G1
Marking ID
AM4962GH-G1
AM4962GH-G1
AM4962GS-G1
AM4962GS-G1
Packing
Type
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.
Apr. 2011 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
5
5 Page 
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER
Typical Application (Note 4)
Data Sheet
AM4962
VCC D1
V+
C1
1μF
C3
1μF
L1
AM4962
1 (1)
OUT2
14 (15)
OUT1
2 (3) VCC
3 (4) VMIN
GND 13 (14)
12 (13)
CT
4 (5) PWM
RADJ 11 (12)
5 (6) CF
HIN- 10 (11)
6 (7) FG
HB 9 (10)
7 (8) RD PGND HIN+ 8 (9)
Hall
100
Max. Duty Cycle
80
60
C2
0.47μF
40
Slope K
20
Min. Duty Cycle
0
0
10 20 30 40 50 60 70 80 90 100
Input PWM Duty Cycle (%)
Figure 10
Application 1 (Default)
VCC D1 V+
C1 R1
1F
R2
C3
1F
D2
R3
R4
L1
AM4962
1 (1)
OUT2
14 (15)
OUT1
D3
2 (3) VCC
3 (4) VMIN
GND 13 (14)
12 (13)
CT
4 (5) PWM
RADJ 11 (12)
5 (6) CF
HIN- 10 (11)
6 (7) FG
HB 9 (10) Hall
7 (8) RD PGND HIN+ 8 (9)
V+
R5
C2
0.47 F
R6
Application 2 (Slope K and Minimum/Maximum Duty Adjustable)
Note: D2 and D3 are recommended to be used when the current in coil L1 is higher than 300mA.
Figure 11. Typical Applications of AM4962
Apr. 2011 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet AM4962.PDF ] | |
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