LM1875 查看數據表（PDF） - Unisonic Technologies
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LM1875 Datasheet PDF : 7 Pages
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LM1875
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATING
UNIT
Supply Voltage
VCC
60
V
Input Voltage
VIN
-VEE ~ VCC
V
Junction Temperature
TJ
+150
℃
Storage Temperature
TSTG
-40 ~ +150
℃
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(VCC=+25V,-VEE=-25V,Ta=25℃,RL=8Ω,Av=20(26dB),fo=1kHz,unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Supply Current
ICC POUT=0W
70
100 mA
Output Power(Note)
POUT THD=1%
25
W
POUT=20W,fo=1kHz
0.015
Total Harmonic Distortion
(Note)
THD
POUT =20W, fo =20kHz
POUT =20W,RL=4Ω,fo=1kHz
POUT =20W,RL=4Ω,fo=20kHz
0.05 0.4
%
0.022
0.07 0.6
Offset Voltage
VO(OFF)
±1
±15 mV
Input Bias Current
II(BIAS)
±0.2 ±2
µA
Input Offset Current
II(OFF)
0
±0.5 µA
Gain-Bandwidth Product
GBW Fo=20kHz
5.5
MHz
Open Loop Gain
Gv DC
90
dB
Power Supply Rejection Ratio
RR VCC,1kHz,1 Vrms
VEE,1kHz,1 Vrms
52 95
52 83
dB
Max Slew Rate
SR 20W,8Ω,70kHz BW
8
V/µs
Current Limit
ILIMIT VOUT=VSUPPLY–10V
3
4
A
Equivalent Input Noise Voltage
eN Rs=600Ω,CCIR
3
µVrms
Note: Assumes the use of a heat sink having a thermal resistance of 1℃/W and no insulator with an Ta=25℃.
Because the output limiting circuitry has a negative temperature coefficient, the maximum output power
delivered to a 4Ω load may be slightly reduced when the tab temperature exceeds 55℃.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 7
QW-R107-019,D
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