TAS5706APAPR datasheet(37/71 Pages) TI1

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APPLICATION INFORMATION

Recovery From Error

Interchannel Delay (ICD) Settings

TAS5706A

TAS5706B

www.ti.com............................................................................................................................................. SLOS606D – MARCH 2009 – REVISED SEPTEMBER 2009

Protection Mechanisms in the TAS5706A/B

• SCP (short-circuit protection, OCP) protects against shorts across the load, to GND, and to PVCC.

• OTP turns off the device if T

die (typical) > 150°C.

• UVP turns off the device if PVCC (typical) < 8.4 V

• OVP turns off the device if PVCC (typical) > 27.5 V

A short-circuit condition can be detected also by an external controller. The SCP error from the external power

stage is also fed into TAS5706A/B. The VALID pin goes low in the event of a short circuit. The VALID pin can be

monitored by an external

µC. The TAS5706A/B initiates a back-end error sequence by itself to recover from the

error, which involves settling VALID low for a programmable amount of time and then retrying to check whether

the SCP condition still exists.

• OTP turns on the device back when T

die(typical) < 135°C.

• UVP turns on the device if PVCC (typical) is > 8.5 V.

• OVP turns on the device if PVCC (typical) is < 27.2 V.

Recommended ICD Settings

Mode

Description

ICD1

ICD2

ICD3

ICD4

ICD5

ICD6

2 BTL channels, internal

A(L+) = 19

C(R+) = 13

B(L–) = 7

D(R–) = 25

SM(S–) = –12 SP(S+) = –28

2.0 ch BD BTL

power stage only, BD

(0x4C)

(0x34)

(0x1C)

(0x64)

(0xD0)

(0x90)

mode

2 internal BTL channels,

1 external BTL channel

A(L+) = 23

C(R+) = 9

B(L–) = 21

D(R–) = 11

SM(S–) = –23 SP(S+) = –21

2.1 ch AD BTL

using PBTL TAS5601,

(0x5C)

(0x24)

(0x54)

(0x2C)

(0xA4)

(0xAC)

AD mode

2 internal SE channels (2

unused), 1 external BTL

A(L+) = 15

B(R–) = –15

B(0) = 0

D(0) = 0

SM(S–) = –30 SP(S+) = –32

2.1 ch AD SE

channel using PBTL

(0x3C)

(0xC4)

(0x00)

(0x88)

(0x80)

TAS5601, AD mode

2 internal BTL channels,

1 external BTL channel

A(L+) = 19

C(R+) = 13

B(L–) = 7

D(R–) = 25

SM(S–) = –12 SP(S+) = –28

2.1 ch BD BTL

using PBTL TAS5601,

(0x4C)

(0x34)

(0x1C)

(0x64 )

(0xD0)

(0x90)

BD mode

2 internal SE channels +

3.0 ch AD 2SE +

A(L+) = 15

B(R–) = –16

SM(0) = 0

SP(0) = 0

D(S–) = 0

C(S+) = 2

1 internal BTL channel,

1 BTL

(0x3C)

(0xC0)

(0x00)

(0x08)

AD mode

A(L1+) = 8

B(R1–) = –24

C(L2+) = –8

D(R2–) = 24

SM(0) = 1

SP(0) = –1

4.0 ch AD SE

4 internal SE channels

(=0x20)

(0xA0)

(0xE0)

(0x60)

(0x04)

(0xFC)

4 internal SE channels +

1 external BTL channel,

A(L1+) = 8

B(R1–) = –24

C(L2+) = –8

D(R2–)= 24

SM(S–) = 1

SP(S+) = –1

4.1 ch AD SE

using PBTL TAS5601,

(0x20)

(0xA0)

(xE0)

(0x60)

(0x04)

(0xFC)

AD mode.

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Product Folder Link(s): TAS5706A TAS5706B

TAS5706A is Not Recommended for New Designs

TAS5706APAPR Datasheet(PDF) 37 Page - Texas Instruments

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