AM1469 Datasheet PDF - AMtek


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AM1469
AMtek

Part Number AM1469
Description 4-channel BTL driver
Page 8 Pages

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AM1469
Motor Driver ICs
4-channel BTL driver for CD players
AM1469 V33/V50
The AM1469 is a 4-channel BTL driver for CD player motors and actuators. An internal 3.3V/5.0V
regulator and standard op amp are provided for variety of applications.
Applications
1. CD player
2. VCD player
3. DVD player
Features
1) HSOP28 package with good thermal
performance
2) Few external parts.
3) External resistor allows gain adjustment.
4) V33 -- 3.3V regulator.
V50 -- 5.0V regulator
(requires attached PNP transistor)
5) Internal standard operational amplifier.
6) Built-in thermal shutdown circuit.
Absolute maximum ratings (Ta = 25 )
Parameter
Symbol
Rating
Power supply voltage
Power dissipation
Vcc max.
Pd
13.5
1.7*1
Storage temperature
Tstg -55~+150
1 Use base condition : 100x100mm, t=1.6mm, copper leaf 50%, glass epoxy mounting.
Derating is done at 13.6mW/ for operation above Ta = 25 .
Recommended operating conditions (Ta = 25 )
Parameter
Operating temperature
Operational voltage
Symbol
TOPR
VOPR
Limits
-25 ~ +85
5 ~ 12
Unit
V
W
Unit
V
AMtek semiconductors
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July, 2003 V1.0



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Block diagram
AM1469
Motor Driver ICs
AMtek semiconductors
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July, 2003 V1.0



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Pin configuration
AM1469
Motor Driver ICs
AMtek semiconductors
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July, 2003 V1.0



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Pin descriptions
AM1469
Motor Driver ICs
Pin No. Pin name
Function
1 ch1-OUT A Driver channel 1 negative output
2 ch1-OUT B Driver channel 1 positive output
3 ch1-IN A Driver channel 1 input
4 ch1-IN B Driver channel 1 input, gain adjustment pin
5 Tr-B
Connect to external transistor base
6 Vreg OUT Constant voltage output, connects to external transistor collector
7 MUTE
Driver mute control input
8 GND
Ground
9 ch2-IN B Driver channel 2 input, gain adjustment pin
10 ch2-IN A Driver channel 2 input
11 ch2-OUT B Driver channel 2 positive output
12 ch2-OUT A Driver channel 2 negative output
13 SUBGND Substrate ground
14 OP OUT Operational amplifier output
15 OP IN(-) Operational amplifier negative input
16 OP IN(+) Operational amplifier positive input
17 ch3-OUT A Driver channel 3 negative output
18 ch3-OUT B Driver channel 3 positive output
19 ch3-IN A Driver channel 3 input
20 ch3-IN B Driver channel 3 input, gain adjustment pin
21 Vcc
Power supply
22 Vcc
Power supply
23 BIAS IN Bias amplifier input pin
24 ch4-IN B Driver channel 4 input, gain adjustment pin
25 ch4-IN A Driver channel 4 input
26 ch4-OUT B Driver channel 4 positive output
27 ch4-OUT A Driver channel 4 negative output
28 SUBGND Substrate ground
NotePositive and negative output is relative to the polarity of the input pins.
AMtek semiconductors
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July, 2003 V1.0




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