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A7240 Datasheet(Fiches technique) 3 Page - Unisonic Technologies

Numéro de pièce A7240
Description  20W BRIDGE AMPLIFIER FOR CAR RADIO
Télécharger  6 Pages
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Fabricant  UTC [Unisonic Technologies]
Site Internet  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

A7240 Datasheet(HTML) 3 Page - Unisonic Technologies

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A7240
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
3 of 6
www.unisonic.com.tw
QW-R107-048,A
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Operating Supply Voltage
VSS
18
V
DC Supply Voltage
VSS
28
V
Peak Supply Voltage (for 50ms)
VSS(PEAK)
40
V
Peak Output Current (non repetitive t = 0.1ms)
IO(PEAK)(*)
4.5
A
Peak Output Current (repetitive f .10Hz)
I O(PEAK)(*)
3.5
A
Power Dissipation at TC = 85°C
PD
16
W
Storage and Junction Temperature
TSTG, TJ
-40~+150
°C
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.
(*) Internally limited
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
Thermal Resistance Junction-case
θJC
4
V
ELECTRICAL CHARACTERISTICS(Ta = 25°C, RTH (heatsink)= 4°C/W, VSS = 14.4V)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Supply Voltage
VSS
18
V
Output Offset Voltage
VO(OFF)
150
mV
Total Quiescent Current
IQ
RL =4Ω
65
120
mA
RL =4Ω
18
20
Output Power
POUT
f = 1kHz, d= 10%
RL =8Ω
10
12
W
RL =4Ω
0.1
0.5
Distortion
THD
f = 1kHz, POUT = 50MW ~ 12W
RL =8Ω
0.05
0.5
%
Voltage Gain
GV
f = 1KHz
39.5
40
40.5
dB
Supply Voltage Rejection
SVR
f = 100Hz, Rg = 10KΩ
35
40
dB
B= Curve A
2
Total Input Noise
eN
Rg = 10KΩ
B = 22Hz~22KHz
3
10
µV
Efficiency
η
RL =4Ω, f = 1KHz
65
%
Input Resistance
RIN
f = 1kHz
70
kΩ
Input Sensitivity
VIN
f = 1kHz, POUT = 2W, RL =4Ω
28
mV
Low
fL
88
129
Hz
Frequency Roll Off (-3dB)
High
fH
POUT = 15W, RL =4Ω
25
kHz
Stand-by Threshold
VTHD (PIN2)
1
V
Stand-by Current
ISTN-BY
200
µA
Stand-by Attenuation
ASTN-BY
VOUT = 2Vrms
70
90
dB


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