tps4100 Tripath Technology Inc., tps4100 Datasheet

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tps4100

Manufacturer Part Number
tps4100
Description
Four Channel Bridged Output Power Stage
Manufacturer
Tripath Technology Inc.
Datasheet
TPS4100
FOUR CHANNEL BRIDGED OUTPUT POWER STAGE
G E N E R A L D E S C R I P T I O N
The TPS4100 is a 4 channel bridged (16 power transistors) output power stage. The TPS4100
accepts 5V CMOS logic signals from a Class-T processor, such as TCD6001, to create a high
fidelity 4 channel audio amplifier. The TPS4100 has been designed specifically for automotive head
unit applications operating on a single 10-26V supply.
A P P L I C A T I O N S
¾Automotive Head Units and Trunk
¾DVD Receivers
¾Multimedia Speaker Systems
B E N E F I T S
¾4-channel output stage – with integrated
¾Low external component count
¾Single-supply operation
1
Amplifiers
driver and FETs - in a single 32-pin SSIP
package
Tripath Technology, Inc. – Preliminary Technical Information
F E A T U R E S
¾Four H-Bridge outputs
¾High Efficiency
¾High Power @25.0V
¾High Efficiency
¾AM “Low EMI” mode with connection to
¾Mates seamlessly with TCD6001 Digital Input
¾Mute and Stand-By function
¾Protection Modes:
¾100W
¾88% @ 100W 4:
appropriate Class-T controller
Class-T controller
Output Short to VPP and Ground
Output Short across Load
Load Dump Protection
Over-/Under-Voltage Protection
Over-current Protection
Over-temperature Protection
Fortuitous Open Ground
sat. sq. wave
R e v i s i o n 2 . 5 - F e b r u a r y 2 0 0 5
@ 4:
TPS4100 – KL/Rev. 2.5/02.05

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tps4100 Summary of contents

Page 1

... FOUR CHANNEL BRIDGED OUTPUT POWER STAGE The TPS4100 channel bridged (16 power transistors) output power stage. The TPS4100 accepts 5V CMOS logic signals from a Class-T processor, such as TCD6001, to create a high fidelity 4 channel audio amplifier. The TPS4100 has been designed specifically for automotive head unit applications operating on a single 10-26V supply ...

Page 2

... JA 2 Tripath Technology, Inc. – Preliminary Technical Information (Notes 1, 2) PARAMETER PARAMETER PARAMETER Value UNITS -0.5 to 5.5 V -55 to +150 º 150 º 200 V MIN. TYP. MAX. UNITS ºC Value UNITS 1.0 C C/W q TPS4100 – KL/Rev. 2.5/02.05 ...

Page 3

... Over-current detect OCD Pout Output Power (Note 7) Note 7: The TPS4100 heat sinking in AM Mode must be increased (as compared to Class-T mode) to sustain the typical output numbers. This is due to the lower efficiency of Class B output stage operation. 3 Tripath Technology, Inc. – Preliminary Technical Information Conditions V < ...

Page 4

... OC VP Load Dump Voltage Withstand MAX TPS4100 Pinout 32-pin SSIP Package Note: The heat slug of the TPS4100 is connected to PGND. 4 Tripath Technology, Inc. – Preliminary Technical Information CONDITIONS Over-voltage turn on (amp muted) Over-voltage turn off (mute off) Under-voltage turn off (mute off) ...

Page 5

... TPS4100 Pinout PIN NAME/FUNCTION TYPE 1 SLEEPB INPUT (L) Logic input, ACTIVE LOW. Setting SLEEP to low puts the TPS4100 in sleep Y1, Y2, Y3, Y4 INPUT (L) Non-inverted switching modulator inputs Y1B, Y2B, Y3B, Y4B INPUT (L) Inverted switching modulator inputs. 10 MUTEB INPUT (L) Logic Input, ACTIVE LOW. Setting MUTE to low puts the device in mute mode. ...

Page 6

... Dcp Ccp close to close to 0.1uF PIN28 PIN28 VPP VPP VPP VPP 10uH Lo 10uH Lo 10uH Lo 10uH TPS4100 – KL/Rev. 2.5/02.05 CPUMP Dcp 0.47uF 10; 0.47uF 0.22uF RL Co 0.47uF Rz 10; 0.47uF 0.22uF RL Co 0.47uF Rz 10; 0.47uF 0.22uF ...

Page 7

... Z Z may need to be adjusted. If the system Z and and a quality factor of O TOT where TOT O O TOT , demodulates (filters) the switching O will likely need demodulates (filters) the . DO TPS4100 – KL/Rev. 2.5/02.05 ...

Page 8

... Total output Power E fficienc y Power Dissipation V = 25V 1kH 22H z - 20kH z(AES17) 50 350 400 100 150 200 250 300 Total Output Power (W ) TPS4100 – KL/Rev. 2.5/02. 25V PP 50 100 200 10 450 ...

Page 9

... Application Information The TPS4100 is a 4-channel BTL (Bridge Tied Load) audio amplifier power stage that operates on a single supply voltage ranging from 10-26V. The device is targeted specifically to meet the demands of OEM and aftermarket automobile in-dash head units. With a single supply voltage of 25V, the device delivers four 100 Watt (saturated square wave) channels into 4 ohm ...

Page 10

... This fault puts the amplifier into mute and resets automatically once the supply voltage is reduced below the hysteresis band. The TPS4100 also has built-in load dump protection. This circuit puts the amplifier into sleep mode if the supply voltage is increased above 30V. The TPS4100 is able to survive power supply spikes to 60V if the duration is less than 50mS. ...

Page 11

... This pin has a 1mA maximum sink current capability When used in conjunction with a Class T controller the TPS4100 is a power (high current) amplifier that operates at relatively high switching frequencies. Therefore, amplifier outputs switch between the supply voltage and ground at high speeds while driving high currents ...

Page 12

... MOSFETs and/or other components. The RC dampens the peaking and prevents problems highly recommended that the design process for a TPS4100 amplifier include an analysis of the interaction of intended speaker(s) with the LC filter and RC damper to ensure the desired frequency response is attained ...

Page 13

... Package Information 13 Tripath Technology, Inc. – Preliminary Technical Information TPS4100 – KL/Rev. 2.5/02.05 ...

Page 14

... 2560 Orchard Parkway, San Jose, CA 95131 408.750.3000 - P 408.750.3001 - F For more Sales Information, please visit us @ For more Technical Information, please visit Tripath Technology, Inc. – Preliminary Technical Information www.tripath.com/cont_s.htm www.tripath.com/data.htm TPS4100 – KL/Rev. 2.5/02.05 ...

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