PAM8019

PAM8019
3W STEREO CLASS-D AUDIO AMPLIFIER AND CLASS AB HEADPHONE DRIVER
WITH DC VOLUME CONTROL, NON-CLIP POWER LIMIT AND UVP
Pin Assignments
The PAM8019 is a Stereo 3W Class D audio power amplifier for
driving bridged-tied speakers and includes a Stereo Class AB amplifier
for driving headphones. The advanced 64 step DC volume control
minimizes external components allowing simple and accurate volume
control over the gain range of +20dB (Volume=0V) to -60dB
(Volume=5V).
VDD
LOUTP
GND
ROUTP
20
VDD
Top View
Integrated non-clip power limit technology suppresses output
automatically with programmable power limit, improving the sound
quality and helping to protect the speakers. Programmable under
voltage protection (UVP) can be used to shut down the PAM8019 at a
pre-determined voltage level helping to eliminate speaker pop by
shutting down before the power supply collapses.
ROUTN
1
LOUTN
HPLOUT
HPROUT
Bypass
UVP
3W Stereo Class D Amplifier with Class AB Headphone Amplifier
Filter Free and Low EMI Architecture
Operating Voltage: 2.8V to 5.5V
Low Quiescent Current of 7mA at a VDD of 5V


64 Step DC Volume Control with Hysteresis from -60dB to +20dB
Output Power
Class D Amplifier THD+N=1%
VDD=5V,Load =4Ω; Po=2.4W / Load =8Ω; Po=1.4W
Class D Amplifier THD+N=10%
VDD=5V, Load =4Ω; Po=3.0W / Load =8Ω; Po=1.7W
Class AB Headphone Amplifier
VDD=5V, Load=32Ω; Po=60mW
Speaker or Headphone Select
Non Clip Power Limit (NCPL) Function
OVP and Programmable UVP Protection
Thermal and Over-Current Protection with Auto-Recovery
Power Enhance Package U-QFN4040-20
Lead Free and Green Devices Available (RoHS Compliant)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green Device (Note 3)








Notes:
HP/SPK
Mute
Features
LIN
PL
Volume
RIN
The PAM8019 is available in the power efficient and space saving
U-QFN4040-20.




VDD
GND
SD
GND
INFORMATION
ADVANCED
NEW PRODUCT
Description
Applications




LCD Monitors and TVs
Projectors / All-In-One Computers
Portable / Active Speakers
Portable DVD Players / Game Machines
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimonyfree, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total
Br + Cl) and <1000ppm antimony compounds.
PAM8019
Document number: DS38822 Rev. 1 - 2
1 of 12
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May 2016
© Diodes Incorporated
PAM8019
Typical Applications Circuit
VDD
VDD
VDD
13
16
LIN
Left Channel
Input Signal
Volume
Control
7
Ci1
1mF
3
SD
PWM Modulator
Shut Down
Mute
9
VDD
R7
PL 11
R8
4
Power
Limit
Volume
8
Bypass
15 LOUTN
Speaker 4 Ω
CS3
0.1mF
20
Volume
Control
Gate
Driver
PWM Modulator
Volume
Control
5
Ci2
1mF
VDD
Gate
Driver
LOUTP
Bias and
Vref
RIN
Right Channel
Input Signal
17
Short Crt.
Protect
CB
2.2mF
R6
50kΩ
VDD
Gate
Driver
Over Temp.
Protection
Mute
C1 1mF
Bypass
CS1
0.1mF
CS2
0.1mF
+
Controller
INFORMATION
ADVANCED
NEW PRODUCT
CS4
0.1mF
VDD
19 ROUTP
+
Gate
Driver
Controller
1 ROUTN
Speaker 4 Ω
R4
100kΩ
HP/SPK
HP/Spk
Controller
10
R5
14
C2
220mF
OSC.
UVLO
2
12
C3
220mF
6, 18
GND
R3
R2
HPLOUT HPROUT
R1
VDD
PAM8019
Document number: DS38822 Rev. 1 - 2
2 of 12
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May 2016
© Diodes Incorporated
PAM8019
Pin Descriptions
INFORMATION
ADVANCED
NEW PRODUCT
Pin Number
Name
3
SD
4
Bypass
Full Chip Shutdown Control Input (Active Low)
5
RIN
6, 18
GND
7
LIN
8
Volume
9
Mute
10
HP/S
11
PL
12
UVP
13,16,20
VDD
Function
Bias Voltage for Power Amplifier
Negative Input of Right Channel Power Amplifier
Ground Connection
Negative Input of Left Channel Power Amplifier
Internal Gain Setting Input
Connect to VDD which Set Max. Gain = +20dB
Mute Control Signal Input (Active High)
Output Mode Control Input
High for Headphone Mode and Low for Speaker Mode
Power limit reference voltage, see applications section for further details
Under Voltage Protection Input
See applications section for further details
Supply Voltage
14
HPLOUT
Headphone - Left Channel Output
2
HPROUT
Headphone - Right Channel Output
15
LOUTN
Power Amplifier - Left Channel Negative Output
17
LOUTP
Power Amplifier - Left Channel Positive Output
19
ROUTP
Power Amplifier - Right Channel Negative Output
1
ROUTN
Power Amplifier - Right Channel Positive Output
PAD
GND
Connect to ground (recommended) or No Connect.
Functional Block Diagram
VDD
Volume
Control
LIN
PWM Modulator
Shut Down
Mute
Mute
PL
Power
Limit
Bypass
Bypass
Volume
Volume
Control
LOUTN
Short Crt.
Protect
Bias and
Vref
VDD
PWM Modulator
Volume
Control
HP/Spk
Controller
Gate
Driver
ROUTP
Gate
Driver
ROUTN
+
Controller
HP/SPK
Gate
Driver
Over Temp.
Protection
RIN
LOUTP
+
Controller
SD
Gate
Driver
UVLO
OSC.
HPLOUT HPROUT
PAM8019
Document number: DS38822 Rev. 1 - 2
3 of 12
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May 2016
© Diodes Incorporated
PAM8019
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4)
Symbol
Parameter
VDD
V
-0.3 to VDD + 0.3
TJ
Input Voltage LIN, RIN, SD, Mute, HP/S
Maximum Junction Temperature
TSTG
Storage Temperature Range
TSDR
Maximum Soldering Temperature Range, 5 Seconds
Notes:
Unit
-0.3 to 6.0
Supply Voltage VDD
VIN
INFORMATION
ADVANCED
NEW PRODUCT
Rating
+150
- 65 to +150
°C
+300
4. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
VDD
Supply Voltage Range
VIH
High Level Threshold Voltage
VIL
Low Level Threshold Voltage
VICM
Common Mode Input Voltage
SD, MUTE
HP/S
SD, MUTE
HP/S
Max
Unit
2.8 to 5.5
V
2 to VDD
V
0.8 x VDD to VDD
V
0 to 0.8
V
0 to 1.0
V
1 to VDD - 1
V
TA
Ambient Operation Temperature Range
-40 to +85
TJ
Junction Temperature Range
-40 to +125
°C
Thermal Information (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
θJA
Thermal Resistance – Junction to Ambient
θJC
Ambient Operation Temperature Range
PAM8019
Document number: DS38822 Rev. 1 - 2
QFN4040-20
QFN4040-20
4 of 12
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Typical Value
Unit
45
°C/W
7
°C/W
May 2016
© Diodes Incorporated
PAM8019
INFORMATION
ADVANCED
NEW PRODUCT
Electrical Characteristics
(@TA = +25°C, VDD = 5V, Gain = Max., RL=8Ω, unless otherwise specified.)
Symbol
Parameter
Supply Voltage Range
VDD
Speaker Mode
Quiescent Current (BTL)
IQ
Quiescent Current (SE)
IQ
Mute Current (BTL)
IMUTE
Mute Current (SE)
IMUTE
Shutdown Current
ISD
Oscillator Frequency
FOSC
RI
Input Resistance (BTL)
RI
Input Resistance (SE)
Output Offset Voltage
VOS
Condition
Min
2.8
Typ
-
Max
5.5
Unit
V
200
-
7
4
3
4
250
10
1
300
33
56
-
mA
mA
mA
mA
µA
KHz
KΩ
KΩ
mV
-
0.26
-
-
0.19
-
-
0.28
-
-
0.21
-
-
0.29
-
-
0.21
-
1.5
2.8
-
1.72
1.7
3.0
0.08
0.08
-
-
- 61
-
dB
85
80
-
-82
90
88
180
270
83
-
dB
µV
µV
dB
No load
THD+N=1%, Rl=32Ω, f=1KHz
-
2.5
60
-
V
mW
Rl=32Ω, Po=50mW, f=1KHz
-
0.02
-
%
Power Supply Ripple Rejection
Input AC-GND,F=1KHz,VPP=200mV
-
75
-
dB
CS
Channel Separation
VN
Noise
PO =1W, f=1KHz
Input AC-GND, A-weighting
Non A-weighting
F=20 ~ 20KHz, THD=1%
-
-87
74
58
89
-
dB
µV
µV
dB
1.4
1.4
-
+150
+108
0.6
0.6
-
V
V
V
V
°C
°C
THD+N
Total Harmonic Distortion Plus
Noise
VMUTE=0, VSD=5V, No Load
VMUTE=0, VSD=5V, No Load
VMUTE=0, VSD=5V, No Load
VMUTE=0, VSD=5V, No Load
VMUTE=0, VSD=0V, No Load
Gain=20dB
Gain=3.5dB
No load
VDD =5.5V, IDS=0.8A
P MOSFET
VDD =5.5V, IDS=0.8A
N MOSFET
VDD =4.5V, IDS=0.6A
P MOSFET
VDD =4.5V, IDS=0.6A
N MOSFET
VDD =3.6V, IDS=0.4A
P MOSFET
VDD =3.6V, IDS=0.4A
N MOSFET
Bypass Capacitor, CB=2.2µF
THD+N=10%, f=1KHz, Rl=8Ω
THD+N=10%, f=1KHz, Rl=4Ω
Rl=8Ω, Po=0.8W, f=1KHz
Rl=4Ω, Po=1.6W, f=1KHz
PSRR
Power Supply Ripple Rejection
Input AC-GND, f=1KHz, VPP=200mV
CS
Channel Separation
η
Efficiency
VN
Noise
VDD =1W, f=1KHz
PO =1.7W, f=1KHz, Rl=8Ω
PO =3W, f=1KHz, Rl=4Ω
Input AC-GND, A-weighting
Non A-weighting
F=20 ~ 20KHz, THD=1%
RDS(ON)
TSTART UP
PO
SNR
Drain – Source On-State
Resistance
Startup Time from Shutdown
Output Power
Signal Noise Ratio
Head Phone Mode
Output Offset Voltage
VOS
Output Power
PO
Total Harmonic Distortion Plus
THD+N
Noise
PSRR
SNR
Signal Noise Ratio
Ω
S
W
%
%
Control Section
VIH
VIL
VMH
VML
OTP
OTH
SD Input High
SD Input Low
Mute Input High
Mute Input Low
Over Temperature Protection
Over Temperature Hysteresis
PAM8019
Document number: DS38822 Rev. 1 - 2
-
5 of 12
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May 2016
© Diodes Incorporated
PAM8019
Typical Performance Characteristics
THD+N vs. Output Power - Speaker
50
INFORMATION
ADVANCED
NEW PRODUCT
50
F=100Hz / 1KHz / 10KHz
VDD=5v
RL=8Ω+33mH
THD+N≦10%
Av=20dB
AUX-0025
AES-17(20KHz)
20
10
5
2
1
F=100Hz / 1KHz / 10KHz
VDD=5v
RL=4Ω+33mH
THD+N≦10%
Av=20dB
AUX-0025
AES-17(20KHz)
20
10
5
2
1
%
%
0.5
0.5
0.2
0.2
0.1
0.1
0.05
0.05
0.02
0.02
0.01
1m
2m
5m
10m
20m
50m
100m
200m
500m
1
2
0.01
1m
3
2m
5m
10m
20m
50m
100m
W
200m
500m
1
2
5
W
THD+N vs. Frequency - Speaker
10
10
Po=0.3W / 0.5W / 0.8W
VDD=5v
RL=8Ω
Av=20dB
AUX-0025
AES-17(20KHz)
5
2
Po=0.5W / 1W / 1.5W
VDD=5v
RL=4Ω
Av=20dB
AUX-0025
AES-17(20KHz)
5
2
1
1
%
%
0.5
0.5
0.2
0.2
0.1
0.1
0.05
0.06
0.03
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
Hz
1k
2k
5k
10k
20k
Hz
Crosstalk vs. Frequency - Speaker
+0
T
-5
-10
-15
-20
-25
-30
-35
-40
-45
d
B
T
T
T
T
T
T
T
T
T
+0
T
T
T T
T T
T T
T T
T
-5
VDD=5v
Vo=1Vrms
RL=8Ω
Av=20dB
AUX-0025
AES-17(20KHz)
-10
-15
-20
-25
-30
-35
-40
-45
d
B
-50
-55
VDD=5v
Vo=1Vrms
RL=4Ω
Av=20dB
AUX-0025
AES-17(20KHz)
-50
-55
-60
-60
-65
R-Channel to L-Channel
-70
R-Channel to L-Channel
-65
-70
-75
-75
-80
-80
-85
-85
-90
R-Channel to L-Channel
-95
R-Channel to L-Channel
-90
-95
-100
20
50
100
200
500
1k
Hz
2k
5k
10k
20k
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
PAM8019
Document number: DS38822 Rev. 1 - 2
6 of 12
www.diodes.com
May 2016
© Diodes Incorporated
PAM8019
Typical Performance Characteristics (Cont.)
PSRR vs. Frequency
+0
+0
TT TT TT TTT TT TTT TT
TT TT TT TTT TT TTT TT
INFORMATION
ADVANCED
NEW PRODUCT
-5
-10
-15
-20
-25
-30
-35
d
B
-40
-5
VDD=5v
RL=8Ω
Av=20dB
VRR=200mVPP
AUX-0025
AES-17(20KHz)
-10
-15
-20
-25
-30
-35
d
B
-40
-45
-45
-50
-50
-55
-55
-60
-60
-65
-65
-70
-70
-75
-75
-80
20
50
100
200
500
1k
2k
5k
10k
-80
20
20k
T
T
T
VDD=5v
RL=4Ω
Av=20dB
VRR=200mVPP
AUX-0025
AES-17(20KHz)
50
100
200
500
1k
2k
5k
10k
20k
Hz
Hz
Output Noise vs. Frequency – Speaker
+0
-10
-20
-30
-40
d
B
r
-50
A
-70
+0
VDD=2.8v ~ 5.5v
RL=8Ω+2*33uH
Av=20dB
Input AC Ground
AUX-0025
AES-17(20KHz)
-10
-20
-30
-40
-60
VDD=2.8v / 3.3v / 3.6v / 4.2v / 5v / 5.5v
-80
d
B
r
-50
A
-70
-60
VDD=2.8v / 3.3v / 3.6v / 4.2v / 5v /
5.5v
-80
-90
-90
-100
-100
-110
-110
-120
20
VDD=2.8v ~ 5.5v
RL=4Ω+2*33uH
Av=20dB
Input AC Ground
AUX-0025
AES-17(20KHz)
50
100
200
500
1k
2k
5k
10k
20k
-120
20
Hz
PAM8019
Document number: DS38822 Rev. 1 - 2
50
100
200
500
1k
2k
5k
10k
20k
Hz
7 of 12
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May 2016
© Diodes Incorporated
PAM8019
Typical Performance Characteristics (Cont.)
INFORMATION
ADVANCED
NEW PRODUCT
Table 1 DC Volume Control
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Power Amp
DC Volume (V)
Gain (dB)
0.000 to 0.201
20
0.202 to 0.275
19.6
0.276 to 0.347
19.2
0.348 to 0.419
18.8
0.420 to 0.491
18.4
0.492 to 0.563
18
0.564 to 0.633
17.6
0.634 to 0.701
17.1
0.702 to 0.771
16.6
0.772 to 0.849
16.1
0.850 to 0.929
15.6
0.930 to 1.005
15.1
1.006 to 1.079
14.6
1.080 to 1.153
14.2
1.154 to 1.225
13.7
1.226 to 1.297
13.3
1.298 to 1.371
12.9
1.372 to 1.443
12.5
1.444 to 1.517
12
1.518 to 1.589
11.6
1.590 to 1.661
11.2
1.662 to 1.733
10.8
1.734 to 1.807
10.5
1.808 to 1.879
10.1
1.880 to 1.951
9.7
1.952 to 2.025
9.3
2.026 to 2.097
8.9
2.098 to 2.169
8.6
2.170 to 2.243
8.2
2.244 to 2.315
7.8
2.316 to 2.389
7.5
2.390 to 2.461
7.1
PAM8019
Document number: DS38822 Rev. 1 - 2
Head Phone
Amp Gain
(dB)
3.51
3.22
2.94
2.66
2.39
2.12
1.85
1.46
1.07
0.69
0.32
-0.05
-0.41
-0.77
-1.12
-1.47
-1.82
-2.16
-2.5
-2.84
-3.18
-3.51
-3.84
-4.17
-4.5
-4.82
-5.16
-5.48
-5.8
-6.13
-6.45
-6.78
Step
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Power Amp
DC Volume (V)
Gain (dB)
2.462 to 2.533
6.7
2.534 to 2.605
6.4
2.606 to 2.678
6
2.679 to 2.751
5.7
2.752 to 2.823
5.3
2.824 to 2.897
4.9
2.898 to 2.969
4.6
2.970 to 3.043
4.2
3.044 to 3.114
3.8
3.115 to 3.186
3.5
3.187 to 3.259
3.1
3.260 to 3.332
2.7
3.333 to 3.403
2.3
3.404 to 3.476
2
3.477 to 3.551
1.6
3.552 to 3.621
1.2
3.622 to 3.695
0.8
3.696 to 3.767
0.4
3.768 to 3.839
0
3.840 to 3.909
-1
3.910 to 3.979
-2.1
3.980 to 4.045
-3
4.046 to 4.116
-5
4.117 to 4.195
-7
4.196 to 4.273
-9
4.274 to 4.347
-10.9
4.348 to 4.421
-17
4.422 to 4.493
-22.8
4.494 to 4.565
-29
4.566 to 4.637
-33.5
4.638 to 4.708
-39.5
4.709 to 5.000
-60
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Head Phone
Amp Gain
(dB)
-7.11
-7.43
-7.76
-8.09
-8.42
-8.76
-9.09
-9.43
-9.77
-10.1
-10.46
-10.81
-11.16
-11.52
-11.88
-12.24
-12.62
-12.99
-13.38
-14.37
-15.42
-16.3
-18.23
-20.16
-22.08
-23.96
-30.01
-35.83
-41.98
-46.46
-52.58
-92.95
May 2016
© Diodes Incorporated
PAM8019
Application Information
Non Clip Power Limit (NCPL) Function
INFORMATION
ADVANCED
NEW PRODUCT
When output reaches the maximum power setting value, the NCLP circuits will decrease the gain to prevent the output waveform from clipping
helping to prevent speaker damage and maximizing audio performance. The PL pin is used to set and control the NCPL function.
Table 1: NCPL Setting Threshold vs. Output
AGC Function
Output Power
VDD to VDDx0.45 or
PL pin floating
NCPL function disabled
VDD x 0.45 to VDD x 0.27
PO=[[8(1/2 VDD -VPL)^2]/RI] x 0.95
VDD x 0.27 to GND
PO =2.3W (Max. output power 4Ω)
PO =1.2W (Max. output power 8Ω)
Mute Operation
The MUTE pin is an input for controlling the Class-D output state of the PAM8019. A logic low on this pin enables the outputs and logic high on this
pin disables the outputs. This pin may be used to quickly disable or enable the outputs without a volume fade. Quiescent current is listed in the
electrical characteristic table. The MUTE pin can be left floating due to the internal pull-down.
Shutdown Operation
In order to reduce power consumption while not in use, the PAM8019 contains shutdown circuit to turn off the amplifier’s bias circuit. The amplifier
is turned off when logic low is placed on the SD pin. The SD pin can be left floating due to the internal pull-up.
Under voltage Protection
External under voltage detection can be used to shut down the PAM8019 before an input device can generate a pop. The shutdown threshold at
the UVP pin is 1.2V. The user selects a resistor divider to obtain the shutdown threshold and hysteresis for the specific application.
The threshold can be determined as below:
With the condition: R3 >> R1//R2
VUVP = [1.2-(6µA x R3)] x (R1+R2)/ R2
Hysteresis = 5µA x R3 x (R1+R2)/ R2
Power Supply Decoupling
The PAM8019 is a high performance CMOS audio-amplifier that requires adequate power supply decoupling to ensure the THD and PSRR are as
low as possible. Power supply decoupling also prevents oscillation caused by long leads between the amplifier and the speaker. The optimum
decoupling is achieved by using two capacitors of different types that target different types of noise on the power supply leads. A good LowEquivalent-Series-Resistance (ESR) ceramic-capacitor of typically 0.1µF is recommended to be placed as close as possible to the VDD pin to filter
the higher frequency transients, spikes or digital hash on the line. Filtering lower-frequency noise signals a large capacitor of 10µF or greater should
be placed near the audio amplifier.
PAM8019
Document number: DS38822 Rev. 1 - 2
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PAM8019
Application Information (Cont.)
Input Capacitor (CI)
INFORMATION
ADVANCED
NEW PRODUCT
It is desirable to use a large input capacitor but in applications where the speaker lacks the ability to reproduce signals below 100Hz to 150Hz it
may be possible to minimize CI without effecting system performance. Input Capacitor (CI) and Input Resistance (RI) of the amplifier form a highpass filter with the corner frequency determined equation below:
Fc = 1/ 2πRI x CI
In addition to system cost and size, click and pop performance is affected by the size of the coupling capacitors. A larger in/out coupling capacitor
requires more charge to reach its quiescent DC voltage (Normally 1/2 VDD). This charge comes from the internal circuit via the feedback and is
more likely to create pops upon device enable. Minimizing the capacitor size based on necessary low frequency response can minimize the turn on
pop.
Bypass Capacitor (CBYP)
Bypass Capacitor (CBYP) is the most critical capacitor and serves several important functions. During start-up or recovery from shutdown mode,
CBYP determines the rate at which the amplifier starts up. The second function is to reduce noise produced by the power supply caused by coupling
into the output signal. The noise is from the internal analog reference to the amplifier, which appears as degraded PSRR and THD+N.
A ceramic bypass capacitor (CBYP) of 0.47µF to 1.0µF is recommended for the best THD and noise performance. Increasing the bypass capacitor
reduces clicking and popping noise from power on/off and when entering and leaving shutdown.
Ordering Information
PAM8019 X X – X
Product Name
Package
Pin Configuration
K:QFN4x4
G: 20
Packing
R : Tape & Reel
Part Number
Package
Standard Package
PAM8019KGR
U-QFN4040-20
3000 / Tape and Reel
Marking Information
P8019
XXXYW
PAM8019
Document number: DS38822 Rev. 1 - 2
Y: Year
W: Week
X: Internal Code
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Package Outline Dimensions (All dimensions in mm.)
Please see http://www.diodes.com/package-outlines.html for the latest version.
U-QFN4040-20
INFORMATION
ADVANCED
NEW PRODUCT
A1
A3
A
Seating Plane
U-QFN4040-20
Dim Min
Max Typ
A
0.55 0.65 0.60
A1
0
0.05 0.02
A3
0.15
b
0.20 0.30 0.25
D
3.95 4.05 4.00
D2
2.40 2.60 2.50
E
3.95 4.05 4.00
E2
2.40 2.60 2.50
e
0.50 BSC
L
0.35 0.45 0.40
Z
0.875
All Dimensions in mm
D
(Pin #1 ID)
e
E2
E
D2
L
b
Z (8x)
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
U-QFN4040-20
X3
Dimensions
X1
C
X
X1
X2
X3
Y
Y1
Y2
Y3
Y1
Y2
Y3
X2
Y
X
1
PAM8019
Document number: DS38822 Rev. 1 - 2
Value
(in mm)
0.500
0.350
0.600
2.500
4.300
0.600
0.350
2.500
4.300
C
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PAM8019
IMPORTANT NOTICE
INFORMATION
ADVANCED
NEW PRODUCT
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
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final and determinative format released by Diodes Incorporated.
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written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
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failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
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representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2016, Diodes Incorporated
www.diodes.com
PAM8019
Document number: DS38822 Rev. 1 - 2
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