December 1999 TOKO, Inc.
Page 1
TK10416
43 k
51 k
VCC
VCC
+
-
+
-
A2
A1
10 k
10 k
APPLICATIONS
s
Speaker Driver for Portable Equipment
s
Headphone Driver
s
Toys
VCC
VOUT 1
Vref/Standby
GND
VOUT 2
VIN
TK10416M
DYNAMIC SPEAKER DRIVE AMPLIFIER
FEATURES
s
Very Wide Operating Voltage (V
CC
= 1.8 to 5.5 V)
s
Very Low Supply Current
s
Very Low Standby Current
s
Miniature Package (SOT23L-6)
s
Adjustable Voltage Gain (V
G1
= 0 to 40 dB)
s
Needs No Output Coupling Capacitor
BLOCK DIAGRAM
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK10416M
DESCRIPTION
The TK10416M is a very low operating voltage and current
audio power amplifier to drive dynamic speakers.
The TK10416M 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 TK10416M is available in the very small SOT23L-6
surface mount package.
The small package in conjunction with few external
components save printed circuit board space.
Page 2
December 1999 TOKO, Inc.
TK10416
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2
3
Supply Voltage ........................................................... 6 V
Operating Voltage ......................................... 1.8 to 5.5 V
Power Dissipation (Notes 1 and 2) ..................... 400 mW
ABSOLUTE MAXIMUM RATINGS
TK10416 ELECTRICAL CHARACTERISTICS
Test Conditions: V
CC
=
3.6 V, f = 1.0 kHz, R
L
= 32
, T
A
= 25
C, unless otherwise specified.
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.
Storage Temperature Range ................... -55 to +150
C
Operating Temperature Range ................... -20 to +70
C
December 1999 TOKO, Inc.
Page 3
TK10416
VCC
Cref = 22 F
VCC
33 F
+
+
75 k
3 k
1 F
+
RL
VIN
CIN
TEST CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
P
D
(
m
W)
400
800
POWER DISSIPATION vs.
TEMPERATURE
TA (
C)
0
-40 -20 0 20 40 60 80
500
300
100
700
200
600
mounted
free air
P
D
(
m
W)
250
POWER DISSIPATION vs.
OUTPUT POWER
POUT (mW)
0
0 50 100 150 200 250 300
150
100
50
200
V
CC
= 5 V
V
CC
= 4 V
V
CC
= 3 V
R
L
= 32
P
D
(
m
W)
450
POWER DISSIPATION vs.
OUTPUT POWER
POUT (mW)
0
0 50 100 150 200 250 300 350
50
V
CC
= 5 V
V
CC
= 4 V
V
CC
= 3 V
RL = 16
100
150
200
250
300
350
400
P
D
(
m
W)
700
POWER DISSIPATION vs.
OUTPUT POWER
POUT (mW)
0
0 50 100 150 200 250 300
100
V
CC
= 5 V
V
CC
= 4 V
V
CC
= 3 V
RL = 8
200
300
400
600
500
Page 4
December 1999 TOKO, Inc.
TK10416
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
I CC
(
m
A)
160
SUPPLY CURRENT vs.
OUTPUT POWER
POUT (mW)
0
0 50 100 150 200 250 300
20
RL = 8
40
80
100
140
120
RL = 16
RL = 32
VCC = 5 V, GV = 34 dB
60
I CC
(
m
A)
or
V
OUT1
(V)
4
SUPPLY CURRENT AND
OUTPUT VOLTAGE vs.
INPUT VOLTAGE
VCC (V)
0
1 2 3 4 5 6 7
1
2
3
RL =
ICC
VOUT1
THD
(%)
10
TOTAL HARMONIC DISTORTION vs.
OUTPUT POWER
POUT (mW)
0
0 50 100 150 200 250
V
CC
= 3.6 V,
GV = 34 dB,
f = 1 kHz
RL = 16
2
4
6
8
RL = 8
RL = 32
THD
(%)
10
TOTAL HARMONIC DISTORTION vs.
OUTPUT POWER
POUT (mW)
0
0 100 200 300 400
V
CC
= 5 V,
GV = 34 dB,
f = 1 kHz
RL = 16
2
4
6
8
RL = 8
RL = 32
THD (%)
10
TOTAL HARMONIC DISTORTION vs.
FREQUENCY
f (kHz)
0.1
0.1 1 10
1
RL = 8
RL = 16
RL = 32
V
CC
= 3 V,
GV = 34 dB,
POUT = 60 mW
RR (dB)
55
RIPPLE REJECTION RATIO vs.
FREQUENCY
f (kHz)
20
0.1 1 10 100
40
35
25
50
30
45
100 F
47 F
22 F
10 F
GV = 34 dB,
Cref = 10 to 100
December 1999 TOKO, Inc.
Page 5
TK10416
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
GV (dB)
35
VOLTAGE GAIN vs.
FREQUENCY
f (kHz)
20
0.1 0.1 1 10 100
25
30
1.0 F
0.1 F
0.47 F
0.22 F
CIN = 0.1 to 1.0 F
GV = 34 dB
I CONT
(A)
CONTROL TERMINAL CURRENT vs.
SUPPLY VOLTAGE
VCC (V)
0
2 2.5 3 3.5 4 4.5 5 5.5
20
40
60
80
100
120
140
160
I CC
(mA)
SUPPLY CURRENT vs.
REFERENCE/STANDBY VOLTAGE
Vref / Standby (V)
0
1 1.5 2 2.5 3 3.5
0.5
1
1.5
2
2.5
3
V
CC
= 3.6 V
Page 6
December 1999 TOKO, Inc.
TK10416
.
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6
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1
A
10 k
VCC
10 k
VCC
VCC
51 k
43 k
VCC
Vref
PIN FUNCTION DESCRIPTION
Note 1: Terminal voltage with no input signal is calculated by the following equation:
V
OUT
= (V
CC
- 0.56) X
43 k
43 k + 51 k
December 1999 TOKO, Inc.
Page 7
TK10416
NOTES
Page 8
December 1999 TOKO, Inc.
TK10416
0.95
0.95
0.32
e
e
M
0.1
+0.15
- 0.05
3.5
1.2
0.15
0.3
3.3
2.2
0.4
0.95
0.95
3.0
e
e
e1
0.6
1.0
Recommended Mount Pad
1
2
3
6
0 - 0.1
15 max
1.4 max
Marking
+0.3
- 0.1
+ 0.3
(3.4)
+0.15
- 0.05
Dimensions are shown in millimeters
Tolerance: x.x =
0.2 mm (unless otherwise specified)
0.1
M
0.1
+0.15
- 0.05
0.4
5 PL
Marking Information
Marking
TK10416
416
SOT23L-6
PACKAGE OUTLINE
Printed in the USA
1999 Toko, Inc.
All Rights Reserved
TOKO AMERICA REGIONAL OFFICES
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Fax: (847) 699-7864
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
IC-231-TK11031
0798O0.0K
Visit our Internet site at http://www.tokoam.com
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
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