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TK10415 Datasheet Preview

TK10415 Datasheet

CERAMIC SPEAKER DRIVE AMPLIFIER

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TK10415 pdf
TK10415
CERAMIC SPEAKER DRIVE AMPLIFIER
FEATURES
s Wide Operating Voltage Range (VCC = 1.8 to 5.5 V)
s Very Low Supply Current (ICC = 1.8 mA @ VCC= 2.4 V)
s
Very
Low
Standby
Current
(I
STBY
=
0.1
µA)
s Miniature Package (SOT23L-6)
s Very Large Output Voltage (VOUT(MAX) = 1.7 Vrms @
VCC = 2.4 V, RL = 620 )
s Very Small Total Harmonic Distortion (THD = 0.1 %
@ VOUT = 0.8 Vrms)
s Needs No Output Coupling Capacitor
APPLICATIONS
s Speaker Driver for Portable Equipment
s Headphone Driver
s Toys and Games
DESCRIPTION
The TK10415M is a very low operating voltage and current
audio power amplifier to drive ceramic speakers.
The TK10415M drives the speaker directly, because the
device has a differential output that does not need an
output coupling capacitor.
The voltage gain is adjustable by two external resistors.
The TK10415M is available in the very small SOT23L-6
surface mount package.
The small package in conjunction with few external
components saves printed circuit board space.
ORDERING INFORMATION
TK10415M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
December 1999 TOKO, Inc.
TK10415
VOUT 1
VCC
VOUT 2
VIN
GND
Vref/Standby
BLOCK DIAGRAM
A1
VCC
20 k
20 k
A2
VCC
36 k
36 k
Page 1



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TK10415 Datasheet Preview

TK10415 Datasheet

CERAMIC SPEAKER DRIVE AMPLIFIER

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TK10415 pdf
TK10415
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................... 6 V
Operating Voltage ......................................... 1.8 to 5.5 V
Power Dissipation (Notes 1 and 2) ..................... 400 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-20 to +70 °C
TK10415 ELECTRICAL CHARACTERISTICS
Test Conditions: VCC = 2.4 V, f = 1.0 kHz, RL = 620 , TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP
ICC
ISTBY
ICONT
VTHS
GVO
Supply Current
Standby Supply Current
Control Terminal Current
Standby Threshold Voltage
Open Circuit Voltage Gain
V
CC
=
2.4
V,
R
L
=
VCC = 5.0 V, RL =
VCC = 2.4 V = Pin 4, RL =
Pin 4 Sink Current, VPin4 = VCC
Pin 4
AMP1
AMP1
VCC -0.4
17.0
1.8
2.2
0.0
53.0
60.0
20.0
GV Voltage Gain
AMP2
AMP1 + AMP2
-3.0 0.0
23.0 26.0
THD
Total Harmonic Distortion
VCC = 2.4 V, VOUT = 0.8 Vrms
VCC = 5.0 V, VOUT = 2.0 Vrms
VOUT(MAX)
Maximum Output Voltage
VCC = 2.4 V, THD 10%
VCC = 5.0 V, THD 10%
1.2
2.6
RR
Ripple Rejection Ratio
Cref = 33 µF
VOUT(DC)
DC Voltage at Output
Terminal
V
OUT1
VOUT2
1.00
1.00
VOUT(OS)
Output Offset Voltage
VOUT2 - VOUT1
-30.0
RL Load Resistance
100
Note 1: Power dissipation is 400 mW in free air. Derate at 3.2 mW/°C for operation above 25 °C.
Note 2: Power dissipation is 600 mW when mounted. Derate at 4.8 mW/°C for operation above 25 °C.
0.1
0.1
1.7
3.7
38.0
1.20
1.20
0.0
620
MAX
3.0
3.5
2.0
90.0
23.0
3.0
29.0
1.0
1.0
1.40
1.40
30.0
UNITS
mA
mA
µA
µA
V
dB
dB
dB
dB
%
%
Vrms
V
rms
dB
V
V
mV
Page 2
December 1999 TOKO, Inc.


Part Number TK10415
Description CERAMIC SPEAKER DRIVE AMPLIFIER
Maker TOKO
Total Page 8 Pages
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