AT5801
4-Channel Motor driver
for Portable CD Player
Features
˙Built-in 4 channels H-bridge drivers.
˙DC/DC converter control circuit on a chip.
˙With reset output inversion circuit.
˙Battery charging circuit on Chip.
˙Built-in thermal shutdown protection.
˙QFP44 package.
Applications
˙Disc-man
˙Other portable compact disc media
Block Diagram
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email: service@aimtron.com.tw
1
AT5801
4-Channel Motor driver
for Portable CD Player
Pin Descriptions
Pin No.
1 BSEN Battery voltage monitor
2 BATTY Battery power supply input
3 RESET Reset detection output
4 DEAD Dead-time setting
5 SW Booster transistor drive
6 EO Error amplifier output
7 EI Error amplifier input
8 SPRT Short-circuit protection setting
9 CT Triangular wave output
10 N.C.
11 Op- Operational amplifier negative input
12 VSYS1 Control circuit power supply input
13 OPOUT Operational amplifier output
14 Op+ Operational amplifier positive input
15 VSYS2 Pre-driver power supply input
16 VREF Reference power supply input
17 IN3 CH3 control signal input
18 IN4 CH4 control signal input
19 MUTE34 CH3/CH4 mute
20 IN2 CH2 control signal input
21 MUTE2 CH2 mute
22 IN1 CH1 control signal input
23 BRAKE1 CH1 brake
24 OUT4R CH4 negative output
25 OUT4F CH4 positive output
26 OUT3R CH3 negative output
27 OUT3F CH3 positive output
28 POWGND Power unit power ground
29 OUT2F CH2 positive output
30 OUT2R CH2 negative output
31 OUT1F CH1 positive output
32 OUT1R CH1 negative output
33 RCHG Charging current setting
34 AMUTE Reset inversion output
35 EMP “Empty” detection output
36 HVCC H-bridge power supply input
37 PSW PWM transistor drive
38 CLK External clock synchronization input
39 START Boost DC/DC converter starting
40 OFF Boost DC/DC converter OFF
41 CHGVCC Charging circuit power supply input
42 SEL “Empty” detection level switching
43 PREGND Pre-unit power supply ground
44 PWMFIL PWM phase compensation
Pin name Function
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email: service@aimtron.com.tw
2
AT5801
4-Channel Motor driver
for Portable CD Player
Pin Assignments
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email: service@aimtron.com.tw
3
AT5801
4-Channel Motor driver
for Portable CD Player
Absolute maximum ratings (
Ta = 2 5oC
)
Parameter Symbol Limits unit
Supply voltage V
CC*1
Driver output current Io 500 mA
Power dissipation Pd 625
Operating temperature range Topr -30~+85
Storage temperature range Tstg -55~+150
o
﹡Derating is done 5mW/
Recommended operating conditions (
for operation above Ta=25oC.
C
Ta = 2 5oC
13.5 V
*
)
mW
o
C
o
C
Parameter Symbol Min. Typ. Max. unit
Control circuit power supply voltage VSYS1 2.7 3.2 5.5 V
Pre-driver power supply voltage VSYS2 2.7 3.2 5.5 V
H-bridge power supply voltage HVCC - PWM BATT V
Power unit power supply voltage BATT 1.5 2.4 8.0 V
Charging circuit power supply voltage CHGVCC 3.0 4.5 8.0 V
Ambient temperature Ta -10 25 70
o
C
Electrical characteristics
(
Unless specified particular, Ta = 25oC, BATT=2.4V, VSYS1= VSYS2=3.2V, VREF=1.6V, CHGVCC=0V, CLK=88.2KHz
)
Parameter Symbol Min. Typ. Max. Unit Conditions
Common section
BATT stand-by current I
BATT supply current
at no-load
VSYS1 supply current
at no-load
VSYS2 supply current
at no-load
CHGVCC supply current
at no-load
I
I
I
CGVCC
H-bridge driver section
Voltage gain (CH1、3、4)
(CH2)
Gain error by polarity
IN pin (CH1、3、4)
G
G
ΔGvc -2
R
Input resistance (CH2)
Maximum output voltage V
Lower transistor
saturated voltage
Upper transistor
saturated voltage
V
V
ST
I
BAT
SYS1
SYS2
VC134
VC2
IN134
R
OUT
SATL
SATU
-
-
-
-
-
12 14 16
21.5 23.5 24.5
91113
IN2
67.59
1.9 2.1
-
-
BATT=9V
03
μA
VSYS1= VSYS2=Vref=0V
2.5 4.0 mA HVcc=0.45V, MUTE34=3.2V
4.7 6.4 mA
HVcc=0.45
MUTE34=3.2V, EI=0V
4.1 5.5 mA HVcc=0.45V, MUTE34=3.2V
0.65 2.0 mA CHGVcc=4.5V, ROUT=OPEN
dB
dB
02dB
kΩ
IN=1.7 and 1.8V
kΩ
-
240 400 mV
240 400 mV
RL=8Ω、HVCC=BATT=4V、
V
IN=0~3.2V
=-300mA、IN=0 and 3.2V
I
O
=300mA、IN=0 and 3.2V
I
O
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email: service@aimtron.com.tw
4
AT5801
4-Channel Motor driver
for Portable CD Player
Input offset voltage V
Output (CH1、3、4)
offset voltage (CH2)
Dead zone V
BRAKE1 ON
threshold voltage
BRAKE1 OFF
threshold voltage
MUTE2 ON
threshold voltage
MUTE2 OFF
threshold voltage
MUTE34 ON
threshold voltage
MUTE2 OFF
threshold voltage
VREF ON
threshold voltage
VREF OFF
threshold voltage
BRAKE1
brake current
V
OO134
V
V
BRON
V
BROFF
V
M2ON
V
M2OFF
V
M34ON
V
M34OFF
Vref
Vref
I
BRAKE1
OI
OO2
DB
ON
OFF
PWM power supply driving section
-8 0 8 mV
-50 0 50
-130 0 130
mV
mV
-10 0 10 mV
2.0
--
2.0
--
--
2.0
1.1
--
--
0.8 V IN1=1.8V
--
0.8 V IN2=1.8V
0.8 V IN3= IN4=1.8V
--
--
0.8 V IN1= IN2=IN3=IN4=1.8V
VIN1=1.8V
VIN2=1.8V
V IN3= IN4=1.8V
V IN1=IN2=IN3=IN4=1.8V
4710mA
Vref=IN=1.6V
BRAKE1 pin The current
Difference between “H” and “L”
PSW sink current I
HVCC level shift voltage V
HVCC leak current I
PWM amplifier
transfer gain
G
DC/DC converter section
(Error amplifier section)
VSYS1 pin
threshold voltage
V
EO pin output voltage H V
EO pin output voltage L V
(Short-circuit protection)
SPRT pin voltage(normal) V
SPRT pin current 1 EO=H I
SPRT pin current 2 EO=L I
SPRT pin current 3
(over-voltage)
SPRT pin impedance R
SPRT pin
threshold voltage
V
Over-voltage V
PSW
HLK
PWM
SPR1
SPR2
I
SPR3
SPTH
HVPR
10 13 17 mA IN1=2.1V
0.35 0.45 0.55 V
SHIF
-
05
1/60 1/50 1/40
3.05 3.20 3.35 V
SITH
SPR
1.4 1.6
--
-
0 0.1 V EI=1.3V
EOH
EOL
61016
12 20 32
12 20 32
175 220 265
SPR
-
0.3 V
IN1=1.8V,HVCC-OUT1F
HVCC=9V
μA
VSYS1= VSYS2=BATT=0V
1/kΩ
IN1=1.8V, HVCC=1.2~1.4V
EI=0.7V, I
V
EI=1.3V, I
μA
EI=0.7V
μA
EI=1.3V, OFF=0V
μA
EI=1.3V, BATT=9.5V
kΩ
1.10 1.245 1.30 V EI=0.7V, CT=0V
8.0 8.4 9.0 V BSEN pin voltage
=-100μA
O
=100μA
O
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email: service@aimtron.com.tw
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