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參數(shù)資料
| 型號： | MAX98502EWE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 11/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUD 2.2W BOOST D 16WLP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道） |
| 在某負(fù)載時最大輸出功率 x 通道數(shù)量： | 4.1W x 1 @ 4 歐姆 |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 特點： | 消除爆音，差分輸入，關(guān)閉 |
| 安裝類型： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 封裝/外殼： | * |
| 包裝： | * |
_______________________________________________________________________________________ 5
MAX98502
Boosted 2.2W Class D Amplifier
with Automatic Level Control
Typical Operating Characteristics
(VBAT = 3.6V, RL = ∞ between SPKP and SPKN, AV = +15.5dB, RKNEE = VBAT, 20Hz to 22kHz AC measurement bandwidth, unless
otherwise noted.)
General
BATTERY CURRENT
vs. BATTERY VOLTAGE
MAX98502
toc01
SUPPLY VOLTAGE (V)
BATTERY
CURRENT
(mA)
5.0
4.5
4.0
3.5
3.0
1
2
3
4
5
6
7
0
2.5
5.5
INPUTS AC-COUPLED TO GND
SDSPK = SDBST = VBAT
BATTERY CURRENT
vs. BATTERY VOLTAGE
MAX98502
toc03
BATTERY VOLTAGE (V)
BATTERY
CURRENT
(A)
5.0
4.5
4.0
3.5
3.0
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0
2.5
5.5
INPUTS AC-COUPLED TO GND
SDSPK = SDBST = AGND
EFFICIENCY vs. OUTPUT POWER
MAX98502
toc05
POUT (W)
EFFICIENCY
(%)
2.5
2.0
1.5
1.0
0.5
10
20
30
40
50
60
70
80
90
100
0
3.0
VBAT = 4.2V
VBAT = 3.6V
VBAT = 3.0V
ZLOAD = 8I + 68F
fIN = 1kHz
BATTERY CURRENT
vs. BATTERY VOLTAGE
MAX98502
toc02
SUPPLY VOLTAGE (V)
BATTERY
CURRENT
(A)
5.0
4.5
4.0
3.5
3.0
70
80
90
100
110
120
130
140
60
2.5
5.5
INPUTS AC-COUPLED TO GND
SDSPK = SDBST = VBAT
TURN-ON RESPONSE
MAX98502 toc04
SPKR OUT
VCCOUT
2V/div
2ms/div
SDBST
EFFICIENCY vs. OUTPUT POWER
MAX98502
toc06
POUT (W)
4.0
3.5
2.5 3.0
1.0 1.5 2.0
0.5
0
4.5
EFFICIENCY
(%)
10
20
30
40
50
60
70
80
90
100
0
VBAT = 4.2V
VBAT = 3.6V
VBAT = 3.0V
ZLOAD = 4I + 33F
CVCCOUT = 22F (0804)
fIN = 1kHz
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