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  D类功放双通道
VA2213  2X15W D类功放可省电感 兼容TPA3110 带静音脚 8V-26V输入
产品名称:VA2213 2X15W D类功放可省电感 兼容TPA3110 带静音脚 8V-26V输入
型号: VA2213
产片介绍:General DescriptionThe VA2213 is a cost-effective filter-less Class D stereo audio power amplifier that operates in wide range of various power supplies VA2213

┄┄┄详细介绍┄┄┄

General Description

The VA2213 is a cost-effective filter-less Class D stereo audio power amplifier that operates in wide range of various power supplies. VA2213 provide volume control with four selectable gain settings (20dB, 26dB, 32dB, 36dB). VA2213 can output 15W per channel into 8Ω load with lower supply current and fewer external components for driving bridged-tied stereo speaker directly. With the function of power limit, the speakers could be operated safely and the input signal would be also normalized.
 
VA2213 operates with high efficiency energy con- version up to 88% (8Ω Load) so that the external heat sink can be eliminated while playing music.
 
VA2213 also integrates Anti-Pop, Output Short & Over-Heat Protection Circuitry to ensure device re- liability. This device also provides the DC detect and protection scheme to prevent the damage of speaker voice coils.
 
The VA2213 is available in small TSSOP-28 green package with exposed pad.

Features

- Operation Voltage from 8V to 26V
- Maximum 88% Efficiency with an 8Ω Speaker
- 16.5W@8Ω Load with THD+N =1% at 18V
- 12.2W@4Ω Load with THD+N =1% at 12V
- 14.9W@4Ω Load with THD+N =10% at 12V
- 9.3W@8Ω Load with THD+N =10% at 12V
- Mute Control For Less CODEC Pop-up Noise
- Four Selectable Gain Settings
- Scalable Power Limit Function
- Speaker DC Detection and Protection
- Parallel BTL Speaker Driving Connection
- Thermal Protection with Auto-Recovery
- Speaker Protection Circuitry
- Short Circuit and Thermal Protection
- RoHS 2.0 compliant TSSOP-28 Green Pack- age with Exposed Pad

Applications

- LCD TV
- Multimedia Speakers
- Sound Bar

Typical Application


Pin Assignments And Descriptions


Pin No. Pin I/O/P Function Description
1 SD_B I Shutdown control terminal. Low active. TTL Logic levels with compli-
ance to AVDD.
2 FAULT_B O Protection Flag Indicator (Open Drain). Connecting FAULT_B and SD_B
can be set to auto-recovery. Otherwise need to reset by cycling AVDD.
3 LINP I Left channel positive audio signal input.
4 LINN I Left channel negative audio signal input.
5 GAIN0 I Gain selection least significant bit.
6 GAIN1 I Gain selection most significant bit.
7 AVDD P Analog Power Supply.
8 AGND P Analog Ground.
9 VREG O Regulated Voltage. Nominal voltage is 5.5V.
10 PLIMIT I Power Limit Level Adjust. Connect a resistor divider from VREG to GND
to set power limit. Connect to VREG directly for no power limit.
11 RINN I Right channel negative audio signal input.
12 RINP I Right channel positive audio signal input.
13 MUTE I Mute signal for fast disable/enable of outputs (HIGH = outputs Hi-Z,
LOW = outputs enabled). TTL logic levels with compliance to AVDD.
14 PBTL I Parallel BTL mode switch.
15,16 PVDDR P Right channel power supply.
17 BSPR I Bootstrap I/O for right channel positive high-side switch.
18 ROUTP O Right channel positive output.
19 PVSSR P Right channel power ground.
20 ROUTN O Right channel negative output.
21 BSNR I Bootstrap I/O for right channel negative high-side switch.
22 BSNL I Bootstrap I/O for left channel negative high-side switch.
23 LOUTN O Left channel negative output.
24 PVSSL P Left channel power ground.
25 LOUTP O Left channel positive output.
26 BSPL O Bootstrap I/O for left channel positive high-side switch.
27,28 PVDDL P Left channel power supply.
Absolutely Maximum Ratings
Over operating free-air temperature range, unless otherwise specified (* 1)
 
Symbol Parameter Limit Unit
VDD(PVDDR, PVDDL, AVDD) Supply voltage -0.3 to 30 V
VI (GAIN0, GAIN1, PBTL,
FALUT_B, MUTE, SD_B)
Input voltage -0.3 to VDD+0.3 V
VI (PLIMIT) Input voltage -0.3 to VREG+0.3 V
VI (LINN, RINN, LINP, RINP) Input voltage -0.3 to 6.5 V
TA Operating free-air temperature range -40 ~ +85 oC
TJ Operating junction temperature range(* 2) -40 to +150 oC
TSTG Storage temperature range -65 to 150 oC
R(LOAD) Minimum load resistance 8 (VDD>15V)
4 (VDD≤15V)
θJC Thermal Resistance (Junction to Case) 8 oC/W
θJA Thermal Resistance (Junction to Air) 45 oC/W
Electrostatic discharge Human body model ±2 kV
Electrostatic discharge Machine model ±200 V
( *1): Stress beyond those listed at “absolute maximum rating” table may cause permanent damage to the device. These are stress rating ONLY. For functional operation are strongly recommend follow up “recommended operation conditions” table.
 
 
 
 

Recommended Operating Conditions

Over operating free-air temperature range, unless otherwise specified.
 
Symbol Parameter Test Condition Specification Unit
Min Max
VDD Supply voltage PVDDL, PVDDR, AVDD 8 26 V
 
VIH
High level input voltage
(GAIN0, GAIN1, PBTL, MUTE, SD_B)
 
VDD=24V
 
2
   
V
 
VIL
Low level input voltage
(GAIN0, GAIN1, PBTL, MUTE, SD_B)
 
VDD=24V
   
0.8
 
V
VOL Low level output voltage
(FAULT_B)
VDD=24V, RPULL-HIGH=100kΩ   0.8 V
TA Operating free-air temperature   -40 85 oC

Electrical Characteristics

TA = 25℃, VDD = 12V, RL=8Ω, GAIN=20dB, unless otherwise noted.
Symbol Parameter Test Condition Specification Unit
Min Typ. Max
|VOS| Output offset voltage (measured
differentially)
VI=0V   1.5 15 mV
IQ Quiescent current SD_B=2V, No load, w/o L/C   25 40 mA
ISD Shutdown current SD_B=0.4V, No load   300 450 µA
tON Shutdown turn-on time SD_B=2V   20   ms
tOFF Shutdown turn-off time SD_B=0.8V   2   µs
fOSC Internal oscillation frequency     260   kHz
 
A
 
Amplifier gain
GAIN1=0.8V, GAIN0=0.8V   20    
dB
GAIN1=0.8V, GAIN0=2V   26  
GAIN1=2V, GAIN0=0.8V   32  
GAIN1=2V, GAIN0=2V   36  
RDS(ON) Drain-Source ON resistance1 VDD=12V,
IOUT=500mA
High Side   240   mΩ
Low Side   240  
VREG Regulator output IVREG = 100µA, VDD=8~25V 5.25 5.5 5.75 V
tDC-DET DC detect time     450   ms
(1) Design center value.
 

Electrical Characteristics

TA = 25℃, VDD = 24V, RL=8Ω, GAIN=20dB, unless otherwise noted.
Symbol Parameter Test Condition Specification Unit
Min Typ. Max
|VOS| Output offset voltage (measured
differentially)
VI=0V   1.5 15 mV
IQ Quiescent current SD_B=2V, No load, w/o L/C   35 50 mA
ISD Shutdown current SD_B=0.4V, No load   350 500 µA
tON Shutdown turn-on time SD_B=2V   20   ms
tOFF Shutdown turn-off time SD_B=0.8V   2   µs
fOSC Internal oscillation frequency     260   kHz
 
A
 
Amplifier gain
GAIN1=0.8V, GAIN0=0.8V   20    
dB
GAIN1=0.8V, GAIN0=2V   26  
GAIN1=2V, GAIN0=0.8V   32  
GAIN1=2V, GAIN0=2V   36  
RDS(ON) Drain-Source ON resistance1 VDD=12V,
IOUT=500mA
High Side   240   mΩ
Low Side   240  
VREG Regulator output IVREG = 100µA, VDD=8~25V 5.25 5.5 5.75 V
tDC-DET DC detect time     450   ms
(1) Design center value.

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