t Dual BTL ePower Driver e
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AM2088AH/ATH Motor Driver ICs
AM2088AH/ATH Sh ta a The AM2088AH/ATH is specially developed for the application of compact disc players and is capable of driving D and sled functions and spindle motors. . focus, tracking w w w Applications
CD-audio, VCD, and DVD-player
Features
1) 2) 3) 4) 5) No external component. High output current. Single power supply. Low output offset voltage. ESD protection on all pins.
6) DIP16 package for AM2088AH, SO16 package for AM2088ATH 7) Build-in thermal shutdown
Absolute maximum ratings (Ta=25℃) ℃
Parameter Supply voltage Peak output current Power dissipation Operate Temp range Storage Temp range
* For 1 channel output.
Quick references (Ta=25℃) ℃
Parameter Supply voltage Internal voltage gain Quiescent current @ 9V VP Slew rate Input current Symbol VP GV IDDQ SR min 5 12 13 typ max 14 14 24 Unit V
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t a
Pd
Symbol VP IORM Topr Tstg
S a
e h
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Limits
m o
Unit V A W ℃ ℃
16 * 0.5 1.4 (A type) 1.1 (AT type) -40 ~ +85 -55 ~ +150
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w
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a 300 D .
1
aS V/us t
nA
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dB
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Apr 2002 V1.5
AM2088AH/ATH Motor Driver ICs
Electrical characteristics (unless otherwise specified, Ta=25℃, VP=9V, RL=8Ω) ℃
Parameter Supply voltage Output peak current Repetitive output current Total quiescent current Output voltage swing Voltage gain Input bias current Bandwidth Power supply rejection ratio Common mode rejection ratio Common mode input range Channel separation Input impedance Channel unbalance Slew rate
Symbol VP IPEAK IORM IP VOPP GV Ibias BW PSRR CMRR VI(COM) α ZI |ΔGV| SR
Conditions
Min 5
Limit Typ
Unit Max 14 V mA mA 24 mA V 14 300 100 dB nA KHz dB dB VP-3.2 V dB KΩ 1 1 dB V/us
500 For each channel(*1) @ VP = 9V 6.5 12 7.5 13 100 @ VP = 5V 38 100 0 50 100 320
*1. However, due to the power dissipation issue, it is not allowed for both channels to operate at this condition at the same moment.
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AM2088AH/ATH Motor Driver ICs
Block Diagram
vp
5
16 Positive input 1 2 +
Positive output 1
Negative input 1
1
13
Negative output 1
12 Positive input 2 6 +
Negative output 2
7 Negative input 2 9 Positive output 2
3,4,8,11,15 10 14
N.C.
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AM2088AH/ATH Motor Driver ICs
Pin description
PIN No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name IN1IN1+ N.C. N.C. VP IN2+ IN2N.C. OUT2+ GND2 N.C. OUT2OUT1GND1 N.C. OUT1+ Negative input 1 Positive input 1 Not connected Not connected Supply voltage Positive input 2 Negative input 2 Not connected Positive output 2 Ground 2 Not connected Negative output 2 Negative output 1 Ground 1 Not connected Positive output 1 Function
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AM2088AH/ATH Motor Driver ICs
Pin Assignment
IN 1-
1
16
OUT 1+
IN 1+
2
15
N.C.
AM2088AH/ATH
N.C.
3
14
GND 1
N.C.
4
13
OUT 1-
VP
5
12
OUT 2-
IN 2+
6
11
N.C.
IN 2-
7
10
GND 2
N.C.
8
9
OUT 2+
Package type: DIP16/SO16 ΘJ ~ 90K/W (A type) ΘJ ~ 112K/W (AT type)
●
Functional description The AM2088AH/ATH is dual power driver circuits in a BTL configuration, intended for use as a power driver for servo systems with a single supply. It is particularly designed for compact disc players and is capable of driving focus, tracking, sled functions and spindle motors. Because of the BTL configuration, the device can supply bi-directional DC current in the load, with only a single supply voltage. The voltage gain is fixed by internal feedback at 13 dB and the device operate in a supply voltage ranges 5 ~14V. The differential input can handle common mode input voltage from ground level up to VP-3.2V.
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Apr 2002 V1.5
AM2088AH/ATH Motor Driver ICs
Application information
+ 100 nF 220 uF
V P = 9V
5
+
Driver singal 1 500 Ω 1 2 +
16
(*1) RL
13
-
Servo system
12 Driver signal 2 500 Ω Vref 7 6 +
-
(*1) RL
+
9
10
14
3,4,8,11,15
N.C.
*1. R L can be: focus, tracking, sled function or spindle m otor.
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Apr 2002 V1.5
