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参数资料
| 型号： | TB2946HQ |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 26 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封装： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件页数： | 17/18页 |
| 文件大小： | 484K |
| 代理商： | TB2946HQ |
TB2946HQ
2009-01-29
8
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Peak supply voltage (0.2 s)
VCC (surge)
50
V
DC supply voltage
VCC (DC)
25
V
Operating supply voltage
VCC (opr)
18
V
Output current (peak)
IO (peak)
9
A
Power dissipation
PD (Note 4)
125
W
Operating temperature
Topr
40 to 85
°C
Storage temperature
Tstg
55 to 150
°C
Note 4: Package thermal resistance
θj-T = 1°C/W (typ.) (Ta = 25°C, with infinite heat sink)
The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must
not be exceeded during operation, even for an instant.
If any of these ratings are exceeded during operation, the electrical characteristics of the device may be
irreparably altered and the reliability and lifetime of the device can no longer be guaranteed.
Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation
in other equipment. Applications using the device should be designed so that no absolute maximum rating
will ever be exceeded under any operating conditions.
Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set
forth in this document.
Electrical Characteristics
(VCC = 13.2 V, f = 1 kHz, RL = 4 Ω, Ta = 25°C unless otherwise specified)
Characteristics
Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
Quiescent supply current
ICCQ
VIN = 0
160
320
mA
POUT MAX (1)
VCC = 15.2 V, max POWER
49
POUT MAX (2)
VCC = 14.4 V, max POWER
43
POUT MAX (3)
VCC = 14.4 V, max POWER
RL
= 2 Ω
70
POUT (1)
VCC = 14.4 V, THD = 10%
26
Output power
POUT (2)
THD
= 10%
21
23
W
Total harmonic distortion
THD
POUT = 5 W
0.007
0.07
%
Voltage gain
GV
VOUT = 0.775 Vrms
25
26
27
dB
Channel-to-channel voltage gain
ΔGV
VOUT = 0.775 Vrms
1.0
0
1.0
dB
VNO (1)
Rg = 0 Ω, DIN45405
60
Output noise voltage
VNO (2)
Rg = 0 Ω,
BW
= 20 Hz to 20 kHz
60
70
μVrms
Ripple rejection ratio
R.R.
frip = 100 Hz, Rg = 620 Ω
Vrip = 0.775 Vrms
50
65
dB
Crosstalk
C.T.
Rg = 620 Ω
POUT = 4 W
80
dB
Output offset voltage
VOFFSET
90
0
90
mV
Input resistance
RIN
90
k
Ω
Standby current
ISB
Standby condition,
V4
= 0, V22 = 0
0.01
1
μA
VSB H
POWER: ON
2.9
VCC
Standby control voltage
VSB L
POWER: OFF
0
0.9
V
VM H
MUTE: OFF
2.9
6.0
Mute control voltage
VM L
MUTE: ON, R1 = 47 kΩ
0
0.9
V
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