Document
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. 2. 3. CD player VCD player 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¢J
Parameter Power supply voltage Power dissipation Storage temperature
¡¯1 Use base condition : 100x100mm, t=1.6mm,
)
Rating 13.5 1.7*1 -55~+150 ¢J Unit V W
Symbol Vcc max. Pd Tstg
¢J.
copper leaf 50%, glass epoxy mounting.
Derating is done at 13.6mW/¢J for operation above Ta = 25
Recommended operating conditions (Ta = 25¢J
Parameter Operating temperature Operational voltage Symbol TOPR VOPR Limits
)
Unit ¢J V
-25 ~ +85 5 ~ 12
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D. BUF
28
1
ch1-OUT A D. BUF
27
S U BG N D
2
T. S . D
ch1-OUTB D. B UF
26
ch4-O UTA
3
ch1-I N A D. B UF
10K
LEV EL S HI FT
25
-
+
+
-
-
Vcc
NG
8
D
+
-
ch2-I N B
9 13K 10K
ch2-I N A
ch2-OUTB D. BUF
12
DRIV ER-MUTE
LE V EL S HI FT
LEV EL S HI FT
ch2-OUT A
D. BUF
13 16
SU BG N D
14
-
AM1469 Motor Driver ICs
TS D¡G Thermal shut down circuit D. Buf¡G Drive buffer
OP-OUT
+
AMtek semiconductors
ch4-O UTB
Block diagram
LEV ELS H IF T
4 10K 1K 10K
24
ch1-I N B
ch4-IN A
5 1K 3. 3K 13K 13K
Tr-B
ch4-IN B
+ -
23
6 7 Vcc
Vr eg OU T
BI AS I N
22
MUTE
Vcc
July, 2003 V1.0
+
- 2/8 50K 50K
21
Vcc
1K
+
1K
-
20
ch3-IN B
13K 10K
10 11
19
ch3-IN A D. B UF
18
ch3-O UTB D. B UF
17 15
ch3-O UTA
OP NI (+ )
OP NI (-)
AM1469 Motor Driver ICs
Pin configuration
ch1-OUTA 1
28
SUBGND
ch1-OUTB 2
27
ch4-OUTA
ch1-INA
3
26
ch4-OUTB
ch1-INB
4
25
ch4-INA
Tr-B
5
24
ch4-INB
AM1469
Vreg OUT 6
23
BIAS IN
MUTE
7
22
Vcc
GND
8
21
Vcc
ch2-INB
9
20
ch3-INB
ch2-INA 10
19
ch3-INA
ch2-OUTB 11
18
ch3-OUTB
ch2-OUTA 12
17
ch3-OUTA
SUBGND 13
16
OP IN(+)
OP-OUT 14
15
OP IN(-)
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AM1469 Motor Driver ICs Pin descriptions
Pin No. Pin name 1 ch1-OUT A 2 ch1-OUT B 3 ch1-IN A 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ch1-IN B Tr-B Vreg OUT MUTE GND ch2-IN B ch2-IN A ch2-OUT B ch2-OUT A SUBGND OP OUT OP IN(-) OP IN(+) ch3-OUT A ch3-OUT B ch3-IN A ch3-IN B Vcc Vcc BIAS IN ch4-IN B ch4-IN A ch4-OUT B ch4-OUT A SUBGND
Function Driver channel 1 negative output Driver channel 1 positive output Driver channel 1 input Driver channel 1 input, gain adjustment pin Connect to external transistor base Constant voltage output, connects to external transistor collector Driver mute control input Ground Driver channel 2 input, gain adjustment pin Driver channel 2 input Driver channel 2 positive output Driver channel 2 negative output Substrate ground Operational amplifier output Operational amplifier negative input Operational amplifier positive input Driver channel 3 negative output Driver channel 3 positive output Driver channel 3 input Driver channel 3 input, gain adjustment pin Power supply Power supply Bias amplifier input pin Driver channel 4 input, gain adjustment pin Driver channel 4 input Driver channel 4 positive output Driver channel 4 negative output Substrate ground
Note¡GPositive and negative output is relative to the polarity of the input pins.
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AM1469 Motor Driver ICs Electrical characteristics ( unless otherwise noted, Ta = 25¢J
, Vcc = 8V, f = 1kHz )
Parameter Quiescent current dissipation Output voltage offset Maximum output high level voltage Maximum output low level voltage Closed loop voltage gain Ripple rejection ratio Slew rate Mute Off voltage <3.3 V/ 5.0 V regulator> Output voltage Output load differential Power supply voltage differential Offset voltage Input bias current Output high level voltage Output low level voltage Output drive current (sink) Output drive current (source) Open loop voltage gain Slew rate Ripple rejection ratio Common mode rejection ratio
¡· Not designed for radiation resistance
Symbol Min Icc Voo VOHD VOLD GVC RR SR VMOFF ¡Ð 2.0 3.1 4.75 -50 -10 -2 ¡Ð 6.0 ¡Ð 10 10 ¡Ð ¡Ð ¡Ð 70 5.5 -40 5.2 ¡Ð 7.0 ¡Ð
Typ. Max Unit 8.0 ¡Ð 5.6 1.3 8.0 60 2.0 ¡Ð 3.3 5.00 0 0 0 20 ¡Ð ¡Ð 50 30 78 1 65 84 ¡Ð ¡Ð ¡Ð ¡Ð ¡Ð ¡Ð ¡Ð 1.8 ¡Ð 3.5 5.25 10 25 2 300 ¡Ð ¡Ð 1.55 9.0 ¡Ð 10.5 40 mA No load mV V V
Conditions
dB VIN=0.1Vrms, f = 1kHz dB VIN=0.1Vrms, f = 100Hz V/µS f=100kHz , VOUT=4VP-P square wave V
Vreg ∆VRL ∆VVCC VOFOP IBOP VOHOP VOLOP ISINK ISOURCE GVO SROP RROP CMRR
V
IL=100mA
mV IL=0~200mA mV (Vcc=6~9V) IL=100mA mV nA V V mA Vcc at 50Ω mA 50Ω at ground dB VIN=75dBV, f = 1kHz V/µS f=100kHz , VOUT=4VP-.