TOKO TK10415MTL Datasheet
TK10415
CERAMIC SPEAKER DRIVE AMPLIFIER
FEATURES
■ Wide Operating Voltage Range (VCC = 1.8 to 5.5 V)
■ Very Low Supply Current (ICC = 1.8 mA @ VCC= 2.4 V)
■ Very Low Standby Current (I
= 0.1 µA)
STBY
■ Miniature Package (SOT23L-6)
■ Very Large Output Voltage (V
= 1.7 Vrms @
OUT(MAX)
VCC = 2.4 V, RL = 620 Ω)
■ Very Small Total Harmonic Distortion (THD = 0.1 %
@ V
= 0.8 Vrms)
OUT
■ Needs No Output Coupling Capacitor
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.
APPLICATIONS
■ Speaker Driver for Portable Equipment
■ Headphone Driver
■ Toys and Games
TK10415
V
OUT 1
V
CC
V
OUT 2
V
IN
GND
V
ref/Standby
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
BLOCK DIAGRAM
-
A1
+
V
CC
20 kΩ
20 kΩ
V
CC
36 kΩ
-
A2
+
36 kΩ
December 1999 TOKO, Inc. Page 1
TK10415
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................... 6 V
Operating Voltage ......................................... 1.8 to 5.5 V
Power Dissipation (Notes 1 and 2)..................... 400 mW
TK10415 ELECTRICAL CHARACTERISTICS
Test Conditions: V
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
2.4 V, f = 1.0 kHz, RL = 620 Ω, TA = 25 °C, unless otherwise specified.
CC =
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-20 to +70 °C
V
I
CC
I
YBTS
I
TNOC
V
SHT
G
OV
tnerruCylppuS
tnerruCylppuSybdnatSV
tnerruClanimreTlortnoCV,tnerruCkniS4niP
egatloVdlohserhTybdnatS4niPV
niaGegatloVtiucriCnepO1PMA0.06Bd
CC
V
CC
CC
R,V4.2=
= ∞ 8.10.3Am
L
R,V0.5=
= ∞ 2.25.3Am
L
R,4niP=V4.2=
= ∞ 0.00.2Aµ
L
V=
4niP
CC
CC
1PMA0.710.020.32Bd
G
V
niaGegatloV
2PMA0.3-0.00.3Bd
2PMA+1PMA0.320.620.92Bd
V
DHTnoitrotsiDcinomraHlatoT
V
)XAM(TUO
egatloVtuptuOmumixaM
RRoitaRnoitcejeRelppiRC
V
)CD(TUO
V
)SO(TUO
R
L
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.
lanimreT
tuptuOtaegatloVCD
egatloVtesffOtuptuOV
ecnatsiseRdaoL001026
CC
V
CC
V
CC
V
CC
fer
V
1TUO
V
2TUO
2TUO
,V4.2=DHT
,V0.5=DHT
V,V4.2=
TUO
V,V0.5=
TUO
V8.0=
smr
V0.2=
smr
≤
%01
≤
%01
Fµ33=0.83Bd
V-
1TUO
0.350.09Aµ
4.0-V
1.00.1%
1.00.1%
2.17.1V
6.27.3V
smr
smr
00.102.104.1V
00.102.104.1V
0.03-0.00.03Vm
Ω
Page 2 December 1999 TOKO, Inc.
TEST CIRCUIT
V
(V
)
/
THD
(%)
V
(V
)
/
THD
(%)
100 kΩ
33 µF
+
V
CC
1 µF
+
10 kΩ
0.022 µF
R
L
0.022 µF
+
C
= 33 µF
ref
V
IN
V
CC
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 5 V, TA = 25 °C, unless otherwise specified.
TK10415
SUPPLY CURRENT and REFERENCE
VOLTAGE vs. SUPPLY VOLTAGE
3
2.5
(V)
2
ref
1.5
(mA) / V
1
CC
I
I
CC
V
ref
0.5
0
1 2 3 4 5 6
VCC (V)
OUTPUT VOLTAGE AND
DISTORTION vs. INPUT VOLTAGE 1
10
fIN = 1 kHz, RL = 2 kΩ
VCC = 2.4 V
1
V
OUT
VCC = 5 V
rms
0.1
OUT
0.01
1 10 100 1000
VIN (mVrms)
THD
VCC = 5.0 V
OUTPUT VOLTAGE AND
DISTORTION vs. FREQUENCY
10
VIN = 40 mVrms, RL = 620 Ω
rms
1
0.1
V
THD
OUT
OUT
0.01
0.01 0.1 1 10 100
fIN (kHz)
OUTPUT VOLTAGE AND
DISTORTION vs. INPUT VOLTAGE 2
10
fIN = 1 kHz, RL = 620 Ω
VCC = 2.4 V
1
(Vrms) / THD (%)
0.1
OUT
V
V
OUT
VCC = 5 V
VCC = 5.0 V
0.01
1 10 100 1000
VIN (mVrms)
THD
December 1999 TOKO, Inc. Page 3
Loading...