TS421IDT STMicroelectronics, TS421IDT Datasheet

IC AMP AUDIO .367W MONO AB 8SOIC

TS421IDT

Manufacturer Part Number
TS421IDT
Description
IC AMP AUDIO .367W MONO AB 8SOIC
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TS421IDT

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
367mW x 1 @ 16 Ohm
Voltage - Supply
2 V ~ 5.5 V
Features
Differential Inputs, Short-Circuit Protection, Standby
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-4066-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TS421IDT
Manufacturer:
ST
Quantity:
20 000
DESCRIPTION
The TS419/TS421 is a monaural audio power am-
plifier driving in BTL mode a 16 or 32 earpiece or
receiver speaker. The main advantage of this con-
figuration is to get rid of bulky ouput capacitors.
Capable of descending to low voltages, it delivers
up to 220mW per channel (into 16 loads) of con-
tinuous average power with 0.2% THD+N in the
audio bandwidth from a 5V power supply.
An externally controlled standby mode reduces
the supply current to 10nA (typ.). The TS419/
TS421 can be configured by external gain-setting
resistors or used in a fixed gain version.
APPLICATIONS
ORDER CODE
MiniSO & DFN only available in Tape & Reel with T suffix.
SO is available in Tube (D) and in Tape & Reel (DT)
June 2003
TS419
TS421
TS419
TS419-2
TS419-4
TS419-8
TS421
TS421-2
TS421-4
TS421-8
Number
OPERATING FROM Vcc=2V to 5.5V
STANDBY MODE ACTIVE HIGH (TS419) or
LOW (TS421)
OUTPUT POWER into 16 : 367mW @ 5V
with 10% THD+N max or 295mW @5V and
110mW @3.3V with 1% THD+N max.
LOW CURRENT CONSUMPTION: 2.5mA max
High Signal-to-Noise ratio: 95dB(A) at 5V
PSRR: 56dB typ. at 1kHz, 46dB at 217Hz
SHORT CIRCUIT LIMITATION
ON/OFF click reduction circuitry
Available in SO8, MiniSO8 & DFN 3x3
16/32 ohms earpiece or receiver speaker driver
Mobile and cordless phones (analog / digital)
PDAs & computers
Portable appliances
Part
-40, +85°C
Range:
Temp.
I
D
Package
360mW MONO AMPLIFIER WITH STANDBY MODE
tba tba
tba tba x4/12dB
tba tba x8/18dB
tba tba
tba tba x4/12dB
tba tba x8/18dB
S
Q
external
external
external
external
x2/6dB
x2/6dB
Gain
Marking
TS419I
TS421I
K19A
K19B
K19C
K19D
K21A
K21B
K21C
K21D
PIN CONNECTIONS (top view)
TS421IST, TS421-xIST: MiniSO8
TS419IST, TS419-xIST: MiniSO8
STANDBY
STANDBY
STANDBY
STANDBY
TS421IQT, TS421-xIQT: DFN8
TS419IQT, TS419-xIQT: DFN8
BYPASS
BYPASS
BYPASS
BYPASS
V
V
V
V
GND
GND
GND
GND
OUT 2
OUT 2
OUT 2
OUT 2
TS421IDT: SO8
TS419IDT: SO8
1
1
3
3
4
4
1
1
2
2
2
2
3
3
4
4
8
8
8
8
7
7
6
6
5
5
7
7
6
6
5
5
Vcc
Vcc
V
V
Vcc
Vcc
V
V
V
V
V
V
V
V
V
V
OUT 1
OUT 1
IN-
IN-
OUT 1
OUT 1
IN+
IN+
IN-
IN-
IN+
IN+
TS419
TS421
1/32

Related parts for TS421IDT

TS421IDT Summary of contents

Page 1

... TS419IST, TS419-xIST: MiniSO8 TS419IQT, TS419-xIQT: DFN8 GND GND Vcc Vcc OUT 2 OUT OUT 1 OUT STANDBY STANDBY IN- IN- BYPASS BYPASS IN+ IN+ TS421IDT: SO8 TS421IST, TS421-xIST: MiniSO8 TS421IQT, TS421-xIQT: DFN8 GND GND Vcc Vcc OUT 2 OUT OUT 1 OUT STANDBY STANDBY IN- IN- BYPASS BYPASS IN+ ...

Page 2

TS419-TS421 ABSOLUTE MAXIMUM RATINGS Symbol 1) V Supply voltage CC V Input Voltage i T Storage Temperature stg T Maximum Junction Temperature j Thermal Resistance Junction to Ambient R thja SO8 MiniSO8 DFN8 2) Power Dissipation SO8 Pd MiniSO8 DFN8 ...

Page 3

FIXED GAIN VERSION SPECIFIC ELECTRICAL CHARACTERISTICS V from +5V to +2V, GND = 0V Symbol R Input Resistance IN Gain value for Gain TS419/TS421-2 G Gain value for Gain TS419/TS421-4 Gain value for Gain TS419/TS421-8 APPLICATION COMPONENTS INFORMATION ...

Page 4

TS419-TS421 ELECTRICAL CHARACTERISTICS V = +5V, GND = 0V 25°C (unless otherwise specified) CC amb Symbol Supply Current input signal, no load Standby Current No input signal STANDBY No input signal, V Output ...

Page 5

ELECTRICAL CHARACTERISTICS V = +3.3V, GND = 0V 25°C (unless otherwise specified) CC amb Symbol Supply Current input signal, no load Standby Current No input signal STANDBY No input signal, V Output Offset ...

Page 6

TS419-TS421 ELECTRICAL CHARACTERISTICS V = +2.5V, GND = 0V 25°C (unless otherwise specified) CC amb Symbol Supply Current input signal, no load Standby Current No input signal STANDBY No input signal, V Output ...

Page 7

ELECTRICAL CHARACTERISTICS V = +2V, GND = 0V 25°C (unless otherwise specified) CC amb Symbol Supply Current input signal, no load Standby Current No input signal STANDBY No input signal, V Output Offset ...

Page 8

TS419-TS421 Index of Graphs Common Curves Open Loop Gain and Phase vs Frequency Current Consumption vs Power Supply Voltage Current Consumption vs Standby Voltage Output Power vs Power Supply Voltage Output Power vs Load Resistor Power Dissipation vs Output Power ...

Page 9

Fig. 1: Open Loop Gain and Phase vs Frequency 80 Gain 60 40 Phase 20 0 -20 -40 0 100 Frequency (kHz) Fig. 3: Open Loop Gain and Phase vs Frequency 80 Gain 60 40 Phase 20 0 ...

Page 10

TS419-TS421 Fig. 7: Open Loop Gain and Phase vs Frequency 80 Gain 60 40 Phase 20 0 -20 -40 0 100 Frequency (kHz) Fig. 9: Open Loop Gain and Phase vs Frequency 80 Gain 60 40 Phase 20 ...

Page 11

Fig. 13: Current Consumption vs Power Supply Voltage 2.0 No load Ta=85 C 1.5 Ta=25 C 1.0 0.5 0 Power Supply Voltage (V) Fig. 15: Current Consumption vs Standby Voltage 2.0 1.5 Ta=25 C 1.0 Ta=-40 C ...

Page 12

TS419-TS421 Fig. 19: Current Consumption vs Standby Voltage 2.0 Ta=85 C 1.5 Ta=25 C 1.0 Ta=-40 C 0.5 0 Standby Voltage (V) Fig. 21: Output Power vs Power Supply Voltage 500 450 F = 1kHz ...

Page 13

Fig. 25: Output Power vs Load Resistor 200 THD+N=10% 150 THD+N=1% 100 50 THD+N=0. Load Resistance ( ) Fig. 27: Output Power vs Load Resistor 50 45 THD+N=10% 40 THD+N= ...

Page 14

TS419-TS421 Fig. 31: Power Dissipation vs Output Power 100 Vcc=2V F=1kHz THD+N< RL= Output Power (mW) Fig. 33: Output Voltage Swing For One Amp. vs Power Supply Voltage 5.0 Tamb=25 ...

Page 15

Fig. 35: THD + N vs Output Power 20Hz < 22kHz Vcc=2V Tamb = 25 C 0.1 Vcc=2.5V 0.01 Vcc=3.3V 1E Output Power ...

Page 16

TS419-TS421 Fig. 41: THD + N vs Output Power 20kHz < 125kHz Tamb = 25 C Vcc=2V 1 Vcc=2.5V Vcc=3.3V 0 Output Power (mW) ...

Page 17

Fig. 47: Signal to Noise Ratio vs Power Supply Voltage with Unweighted Filter (20Hz to 20kHz) 100 THD+N < 0.5% RL=32 Tamb = RL= 2.0 ...

Page 18

TS419-TS421 Fig. 53: PSRR vs Bypass Capacitor 0 Vripple = 200mVpp - Input = Grounded - Cin = >= 16 -30 Tamb = 25 C -40 Vcc = 2V -50 -60 Vcc ...

Page 19

Fig. 56: THD + N vs Output Power 20Hz < 22kHz Tamb = 25 C Vcc=2V 0.1 Vcc=2.5V 0.01 Vcc=3. Output Power (mW) ...

Page 20

TS419-TS421 Fig. 62: THD + N vs Output Power 20kHz < 125kHz Tamb = 25 C Vcc=2V 1 Vcc=2.5V Vcc=3. Output Power (mW) Fig. ...

Page 21

Fig. 68: Signal to Noise Ratio vs Power Supply Voltage with Unweighted Filter (20Hz to 20kHz RL=32 THD+N < 0.5% 85 Tamb = RL=16 70 2.0 2.5 3.0 ...

Page 22

TS419-TS421 Fig. 74: PSRR vs Bypass Capacitor 0 Vripple = 200mVpp - Input = Grounded Cb = Cin = 1 F -20 RL >= 16 Tamb = 25 C -30 Vcc = 2V -40 -50 -60 Vcc ...

Page 23

Fig. 77: THD + N vs Output Power 20Hz < 22kHz Tamb = 25 C Vcc=2V 0.1 Vcc=2.5V Vcc=3.3V 0. Output Power (mW) ...

Page 24

TS419-TS421 Fig. 83: THD + N vs Output Power 20kHz < 125kHz, Tamb = 25 C Vcc=2V Vcc=2.5V 1 Vcc=3. Output Power (mW) ...

Page 25

Fig. 89: Signal to Noise Ratio vs Power Supply Voltage with Unweighted Filter (20Hz to 20kHz RL=32 THD+N < 0.5% Tamb = RL= 2.0 ...

Page 26

TS419-TS421 Fig. 95: PSRR vs Bypass Capacitor 0 Vripple = 200mVpp -10 Input = Grounded Cb = Cin = 1 F -20 RL >= 16 Tamb = 25 C -30 -40 -50 Vcc = 5V, 3.3V & ...

Page 27

APPLICATION INFORMATION BTL Configuration Principle The TS419 & TS420 are monolithic power amplifiers with a BTL output type. BTL (Bridge Tied Load) means that each end of the load is connected to two single-ended output amplifiers. Thus, we have: Single ...

Page 28

TS419-TS421 The efficiency is the ratio between the output power and the power supply P OUT P sup ply The maximum theoretical value is reached when Vpeak = Vcc Decoupling of the circuit Two ...

Page 29

Fig Differential Input Amplifier Configuration Input capacitance C can be calculated by the following formula using the -3dB lower frequency required the lower frequency required Note : ...

Page 30

TS419-TS421 PACKAGE MECHANICAL DATA DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 30/32 SO-8 MECHANICAL DATA mm. TYP MAX. 1.75 0.25 1.65 0.51 ...

Page 31

PACKAGE MECHANICAL DATA TS419-TS421 31/32 ...

Page 32

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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