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PDF AM5954A Data sheet ( Hoja de datos )
| Número de pieza | AM5954A | |
| Descripción | 4-CHANNEL MOTOR DRIVER | |
| Fabricantes | BCD Semiconductor | |
| Logotipo |  |
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Data Sheet
4-CHANNEL MOTOR DRIVER FOR DVD PLAYER
General Description
Features
AM5954A
The AM5954A is a four-channel BTL driver IC for
driving the motors and actuators in products for DVD-
player drivers. Two of the channels use current feed-
back to minimize the current phase shift caused by the
influence of load inductance. This IC is an improved
version of AZ5954.
· Level Shift Circuit On Chip
· Internal Standby Mode
· Built-in Thermal Shutdown Circuit
Applications
The AM5954A is available in HSOP-28 Package.
· DVD Player
www.DataSheet4U.com
Mar. 2007 Rev. 1. 4
HSOP-28
Figure 1. Package Type of AM5954A
BCD Semiconductor Manufacturing Limited
1
1 page  
4-CHANNEL MOTOR DRIVER FOR DVD PLAYER
Ordering Information
AM5954A
-
Circuit Type
Package
M28: HSOP-28
Data Sheet
AM5954A
E1: Lead Free
Blank: Tin Lead
TR: Tape and Reel
Blank: Tube
Package
HSOP-28
Temperature
Range
0 to 70oC
Part Number
Tin Lead
Lead Free
Marking ID
Tin Lead
Lead Free
Packing
Type
AM5954AM28 AM5954AM28-E1 AM5954AM28 AM5954AM28-E1 Tube
AM5954AM28TR-E1
AM5954AM28-E1 Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Absolute Maximum Ratings (Note 2)
Parameter
Supply Voltage
Power Dissipation
Operating Junction Temperature
Storage Temperature Range
ESD (Human Body Model)
ESD (Machine Model)
Symbol
VCC, PVCC1/2
PD
TJ
TSTG
ESD
ESD
Value
13.5
1.7 (Note 3)
150
-55 to 150
2000
200
Unit
V
W
oC
oC
V
V
Note 2: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum
Ratings" for extended periods may affect device reliability.
Note 3: The power dissipation is reduced by 13.6mW for each increase in temperature of 1oC over 25oC.
Recommended Operating Conditions
Parameter
Supply Voltage
Operating Temperature
Symbol
VCC
PVCC1
PVCC2
TA
Min
4.0
4.0
4.0
0
Max
13.2
VCC
VCC
70
Unit
V
V
V
oC
Mar. 2007 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
5
5 Page 
Data Sheet
4-CHANNEL MOTOR DRIVER FOR DVD PLAYER
Application Information
AM5954A
1. This IC has a built-in thermal shutdown circuit
that mutes the output current when the chip tem-
perature reachs 178oC (Typ). The hysteresis is set
to 25oC (Typ), so the driver circuits start up again
when the chip temperature falls to 153oC (Typ).
2. The driver buffer is switched off when the supply
voltage falls below 3.5V (Typ), and is switched
back on when the voltage reaches 3.7V (Typ)
again.
3. In case standby pin voltage is under 0.5V or
opened, quiescent current is muted. Standby pin
voltage should be over 2.0V for normal applica-
tion.
4. BIAS pin (pin 27) should be pulled up more than
1.2V. In case bias pin voltage is pulled down
under 0.9V (Typ), output current is muted.
5. Insert the by-pass capacitor (approximately
0.1µF) between VCC-pin and GND-pin as near as
possible to this IC.
6. Heat dissipation fins are attached to the GND
inside the package. Make sure to connect them to
the external GND.
Supplement: (Current-feedback driver)
The transmission gain (output current/input
voltage) is given by:
gm=1/(RD + RWIRE) (A/V)
RWIRE is the total gold wire resistance inside the
package (0.15Ω ± 0.05Ω ) (Typ).
Mar. 2007 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AM5954A.PDF ] | |
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