TAS5602

TERMINAL FUNCTIONS (continued)

TERMINAL

I/O

DESCRIPTION

NO.

NAME

Forces the output to high impedance state. Use this terminal to quickly (<1 ms) disable the output

switching in cases like power fail. If HIZ is tied to RESET, the volume ramps up slowly at start-up,

17

HIZ

–

but the output switching is stopped quickly at power down.

HIZ = High, normal operation.

HIZ = Low, the outputs held in high impedance state. No switching at output.

Enable/Disable pin. Use this terminal for pop-free start/stop.

18

RESET

I

RESET = High, normal operation

RESET = Low, held in reset mode

Short circuit fault

FAULT = High, normal operation

19

FAULT

O

FAULT = Low, short circuit at output detected. FAULT will latch if short circuit detected and will be

reset if the RESET pin is pulled low or the VCC power supplies are turned off. Thermal fault will

not be reported by the FAULT pin.

20

SE/BTL

I

Single-ended or Bridge-tied output select terminal. If any output is configured as a single-ended

load, this pin should be connected to DVDD. For 2-channel, BTL operation, connect to GND.

Thermal warning output flag.

THERM_WARN = HIGH, normal operation.

21

THERM_WARN

O

THERM_WARN = LOW, die temperature has reached 125 deg. C. Automatically resets when

temperature falls back to normal range. TTL compatible push-pull output.

41

BYPASS

O

VCC/8 reference for analog cells

47

BSB

I/O

Bootstrap I/O for channel B high-side FET

–

Internally generated voltage supply for channel A and B bootstrap. Not to be used as a supply or

46

VCLAMP_AB

connected to any component other than the decoupling capacitor.

45

BSA

I/O

Bootstrap I/O for channel A high-side FET

4–6

PVCCA

–

Positive power supply for channel A output

55, 56

OUTA

O

Channel A

＝ H-bridge output

1–3

PGNDA

–

Power ground reference for channel A output

48, 49

PVCCB

–

Positive power supply for channel B output

52–54

PGNDB

–

Power ground reference for channel B output

50, 51

OUTB

O

Channel B

＝ H-bridge output

34, 35

OUTC

O

Channel C

＝ H-bridge output

31–33

PGNDC

–

Power ground reference for channel C output

36, 37

PVCCC

–

Positive power supply for channel C output

26–28

PGNDD

–

Power ground reference for channel D output

29, 30

OUTD

O

Channel D

＝ H-bridge output

23–25

PVCCD

–

Positive power supply for channel D output

7, 11,

13, 15,

NC

–

No internal connection.

22, 44

–

Thermal Pad

Connect to PGNDx

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