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부품번호 | EUA2045 기능 |
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기능 | 2.8W Mono Filterless Class-D Audio Power Amplifier | ||
제조업체 | Eutech Microelectronics | ||
로고 | |||
EUA2045
Non-Clip, Low EMI, 2.8W Mono Filterless Class-D
Audio Power Amplifier with Auto-Recovery
DESCRIPTION
The EUA2045 is a high efficiency, 2.8W mono class-D
audio power amplifier with non-clip. A low noise, filterless
PWM architecture eliminates the output filter, reducing
external component count, system cost, and simplifying
design.
Operating in a single 5V supply, EUA2045 is capable of
driving 4Ω speaker load at a continuous average output of
2.8W/10% THD+N or 2.2W/1% THD+N. The EUA2045
has high efficiency with speaker load compared to a typical
class AB amplifier. With a 3.6V supply driving an 8Ω
speaker , the efficiency for a 400mW power level is 84%.
EUA2045 feature non-clip output control function which
detects output signal clip due to the over level input signal
and suppress the output signal clip automatically. Also the
non-clip output control function can adapt the output clip
cause by power supply voltage down with battery.
In cellular handsets, the earpiece, speaker phone, and
melody ringer can each be driven by the EUA2045.
The EUA2045 is available in space-saving WCSP and
TDFN-8 packages.
FEATURES
Unique Modulation Scheme Reduces EMI Emissions
Unique Non-Clip function , Variable NCN1,
NCN2,NCNOFF mode Select
Short Circuit Auto-Recovery
Efficiency at 3.6V With an 8-Ω Speaker:
− 84% at 400 mW
Low Quiescent Current and
Shutdown Current
2.5V to 5.5V Wide Supply Voltage
Shutdown Pin Compatible with 1.8V Logic GPIO
Optimized PWM Output Stage Eliminates
LC Output Filter
Improved PSRR ( -68 dB) Eliminates Need for a
Voltage Regulator
Fully Differential Design Reduces RF Rectification
and Eliminates Bypass Capacitor
Improved CMRR Eliminates Two Input
Coupling Capacitors
Internally Generated 325-kHz Switching
Frequency
Integrated Pop and Click Suppression Circuitry
1.5mm × 1.5mm Wafer Chip Scale Package (WCSP)
and 3mm × 3mm TDFN-8 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
Typical Application Circuit
APPLICATIONS
Ideal for Wireless or cellular Handsets and PDAs
DS2045 Ver 0.1 Mar. 2012
Figure1.
1
EUA2045
Absolute Maximum Ratings
▓ Supply Voltage, VDD ------------------------------------------------------------------------------------- -0.3 V to 6V
▓ Voltage at Any Input Pin ------------------------------------------------------------------------- -0.3 V to VDD +0.3V
▓ Junction Temperature, TJMAX --------------------------------------------------------------------------------------- 150°C
▓ Storage Temperature Rang, Tstg --------------------------------------------------------------------- -65°C to 150°C
▓ ESD Susceptibility -------------------------------------------------------------------------------------------- 2kV
▓ Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds ----------------------------------------- 260°C
▓ Thermal Resistance
θJA (WCSP-9) ------------------------------------------------------------------------------------------------ 110°C/W
θJA (TDFN-8) ------------------------------------------------------------------------------------------------ 72°C/W
Recommended Operating Conditions
Min. Max.
Supply voltage, VDD
Common mode input voltage range, VIC
Operating free-air temperature, TA
VDD=2.5V,5.5V,CMRR ≤ -49dB
2.5 5.5
0.5 VDD-0.8
-40 85
Unit
V
V
°C
Electrical Characteristics TA = 25°C (Unless otherwise noted)
Symbol
Parameter
Conditions
VOS
PSRR
I IH
IIL
Output offset voltage
(measured differentially)
Power supply rejection ratio
High-level input current
Low-level input current
I(Q) Quiescent current
VI= 0V,AV=2 V/V, VDD=2.5V to 5.5V
VDD= 2.5V to 5.5V
VDD= 5.5V, VI= 5.8V
VDD= 5.5V, VI= -0.3V
VDD= 5.5V, no load
VDD= 3.6V, no load
VDD= 2.5V, no load
EUA2045
Min. Typ. Max.
1 25
-68 -55
1
1
4.8
4.0
3.5
I(SD) Shutdown current
VCTRL=0V, VDD= 2.5V to 5.5V
0.5
rDS(on)
Static drain-source on-state
resistance
VDD= 2.5V
VDD= 3.6V
VDD= 5.5V
f(sw) Switching frequency
VDD= 2.5V to 5.5V
VUVLH
VUVLL
Power supply start-up threshold
voltage
Power supply shut-down threshold
voltage
700
500
400
270 325 380
2
1.8
Unit
mV
dB
µA
µA
mA
µA
mΩ
kHz
V
V
DS2045 Ver 0.1 Mar. 2012
4
4페이지 Typical Operating Characteristics
EUA2045
Figure3.
Figure5.
Figure4.
Figure6.
Figure7.
DS2045 Ver 0.1 Mar. 2012
Figure8.
7
7페이지 | |||
구 성 | 총 16 페이지수 | ||
다운로드 | [ EUA2045.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
EUA2045 | 2.8W Mono Filterless Class-D Audio Power Amplifier | Eutech Microelectronics |
EUA2045HIR1 | 2.8W Mono Filterless Class-D Audio Power Amplifier | Eutech Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |