Diodes PAM8006A User Manual

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15W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH POWER LIMIT

Description

The PAM8006A is a 15W (per channel) stereo Class-D audio

amplifier which offers low THD+N (0.2%), low EMI and good PSRR

thus high quality sound reproduction.

The PAM8006A runs off of an 8V to 18V supply at much higher

efficiency than competitors’ Ics.

The PAM8006A only requires very few external components,

significantly saving cost and board space.

The PAM8006A is available in a QFN5x5-32L package.

Features

Pin Assignments

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Diodes Incorporated

PAM8006A

 15W x2 into a 8 speaker

 Low Noise: -90dB

 Over 90% Efficiency

 With Shutdown/Mute Function

 Over Current ,OVP,UVLO,Thermal and Short-Circuit Protection

 Low THD+N

 Power Limit with Non-Clip

 Low Quiescent Current

 Pop Noise Suppression

 Small Package Outlines: QFN5x5-32L

 Pb-Free Package (RoHS Compliant)

Typical Applications Circuit

Applications

 Flat Monitor /LCD TVs

 Multi-Media Speaker System

 DVD Players, Game Machines

 Boom Box

 Music Instruments

PAM8006A

Document number: DSxxxxx Rev. 1 - 0

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PAM8006A

Pin Descriptions

Pin Number Package Name Function

1, 8, 17, 24 NC Not Connected

2 RINN Negative differential audio input for right channel.

3 RINP Positive differential audio input for right channel.

4 MUTE A logic high on this pin disables the outputs and a logic low enables the outputs.

5 AVDD 5V Analog Supply

6 LINP Positive differential audio input for left channel.

7 LINN Negative differential audio input for left channel.

9, 16 PGNDL Power ground for left channel H-bridge.

10, 15 PVCCL Power supply for left channel H-bridge, not connected to PVCCR or AVCC.

11 LOUTN Class-D 1/2-H-bridge negative output for left channel.

12 BSLN Bootstrap I/O for left channel, negative high-side FET.

13 BSLP Bootstrap I/O for left channel, positive high-side FET.

14 LOUTP Class-D 1/2-H-bridge positive output for left channel.

18 PL Reference voltage for power limit function.

19 V2P5 2.5V Reference for analog cells.

20 AGND Analog Ground

21 VCLAMP Internally generated voltage supply for bootstrap capacitors.

22 AVCC High-voltage analog power supply (8V to 26V)

23

25, 32 PGNDR Power ground for right channel H-bridge.

26, 31 PVCCR Power supply for right channel H-bridge, not connected to PVCCL or AVCC.

27 ROUTP Class-D 1/2-H-bridge positive output for right channel.

28 BSRP Bootstrap I/O for right channel, positive high-side FET.

29 BSRN Bootstrap I/O for right channel, negative high-side FET.

30 ROUTN Class-D 1/2-H-bridge negative output for right channel.

33 Thermal Pad

PAM8006A

Document number: DSxxxxx Rev. 1 - 0

SD

Shutdown signal for IC (low= shutdown, high = operational). TTL logic levels with compliance to V

Connect to ground. Thermal pad should be soldered down on all applications to secure the device properly to the printed wiring board.

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Functional Block Diagram

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Diodes Incorporated

PAM8006A

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V

Notes: Maximum Gain: RI = 12.5k, RF = 100k; Power Limit Function: R

Absolute Maximum Ratings (@T

These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground.

Parameter Rating Unit

Supply Voltage VCC

Input Voltage Range VI:

MUTE, PL 0 to 6.0 V

SD

RINN, RINP, LINN, LINP -0.3 to +6.0 V

Junction Temperature Range, TJ

Storage Temperature -65 to +150 °C

Lead Temperature 1, 6mm (1/16inch)

PAM8006A

Document number: DSxxxxx Rev. 1 - 0

and RF are adjustable.

I

= +25°C, unless otherwise specified.)

A

-0.3 to +28.0 V

-0.3 to V

-40 to +125 °C

260 (5sec) °C

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PAM8006A

Recommended Operating Conditions (@T

Parameter Rating Unit

Supply Voltage VCC

Input Pin Voltage 0 to 5.5 V

High Level Input Voltage: SD

MUTE 2.0 to 5.5 V

Low Level Input Voltage: SD 0 to 0.3 V

MUTE 0 to 0.3 V

Ambient Operating Temperature -20 to +85 °C

8 to 18 V

2.0 to V

CC

= +25°C, unless otherwise specified.)

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V

Thermal Information

Parameter Package Symbol Maximum Unit

Thermal Resisitance

(Junction to Case)

Thermal Resistance

(Junction to Ambient)

The exposed PAD must be soldered to a thermal land on the PCB.

Electrical Characteristics (@T

Symbol Parameter Conditions Min Typ Max Units

PO

IDD

ISD

R

DS(ON)

PSRR Power Supply Ripple Rejection Ratio

f

OSC

Vn Output Integrated Noise Floor 20Hz to 22kHz, A-Weighting -100 dB

CS Crosstalk

SNR Signal to Noise Ratio

Gain 32 dB

|VOS|

V2P5 2.5V Bias Voltage No Load 2.5 V

AVDD Internal Analog Supply Voltage

OTS Over Temperature Shutdown 160 °C

OTH Thermal Hysteresis 50 °C

PAM8006A

Document number: DSxxxxx Rev. 1 - 0

Continuous Output Power

Quiescent Current (No Load) 16.5 25 mA

Supply Quiescent Current in Shutdown Mode

Drain-Source On-State Resisitance

Oscillator frequency 300 kHz

Output Offset Voltage (measured differentially)

QFN5x5-32L

= +25°C, VCC = 12V, RL =8, unless otherwise specified.)

A



JC

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JA

THD+N = 0.12%, f = 1kHz, R

THD+N = 1%, f = 1kHz, RL = 8

THD+N = 10%, f = 1kHz, RL = 8

Shutdown = 0V 4 10 µA

I

= 0.5A

O

= +25°C

T

J

1V

Ripple, f = 1kHz,

PP

Inputs AC-Coupled to Ground

P

= 3W, RL = 8, f = 1kHz

O

Maximum Output at THD+N < 0.5%, f = 1kHz

INN and INP Connected Together 30 mV

V

= 8V to 26V

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High Side 210

Low Side 210

Total 420

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= 8

L

5.0 °C/W

16.1

6

8.5

10

-65 dB

-95 dB

90 dB

5 5.5 V

W

m

April 2013