TA7280P POWER AMPLIFIER Datasheet

TA7280P Datasheet, PDF, Equivalent


Part Number

TA7280P

Description

5.8W DUAL / 22W BTL AUDIO POWER AMPLIFIER

Manufacture

Toshiba

Total Page 14 Pages
Datasheet
Download TA7280P Datasheet


TA7280P
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA7280P,TA7281P
TA7280,81P
5.8W Dual Audio Power Amplifier.
22W BTL Audio Power Amplifier.
The TA7280P, TA7281P are dual audio power amplifier for
consumer applications.
It is designed for high power, low distortion and low noise.
It also contains various kind of protectors.
It is suitable for caraudio power amplifier with high
performance.
The kinds of pin configuration are available: Normal (TA7280P)
and reverse (TA7281P) for easier layout design of PCboard when
used in BTLstereo application.
Features
Weight: 4.04g (typ.)
· High power
: POUT (1) = 22W (typ.)
(VCC = 14.4V, f = 1kHz, THD = 10%, RL = 4, BTL)
POUT (2) = 19W (typ.)
(VCC = 13.2V, f = 1kHz, THD = 10%, RL = 4, BTL)
POUT (3) = 15W (typ.)
(VCC = 13.2V, f = 1kHz, THD = 1%, RL = 4, BTL)
POUT (4) = 5.8W (typ.) / ch
(VCC = 13.2V, f = 1kHz, THD = 10%, RL = 4, DUAL)
· Low distortion
: THD (1) = 0.03% (typ.)
(VCC = 13.2V, f = 1kHz, POUT = 4W, RL = 4, GV = 40dB, BTL)
THD (2) = 0.06% (typ.)
(VCC = 13.2V, f = 1kHz, POUT = 1W, RL = 4, GV = 52dB, DUAL)
· Low noise
: VNO (1) = 0.14mVrms (typ.)
(VCC = 13.2V, RL = 4, GV = 40dB, Rg = 0, DIN noise: DIN45405, BTL)
VNO (2) = 0.7mVrms (typ.)
(VCC = 13.2V, RL = 4, GV = 52dB, Rg = 10k, BW = 20Hz~20kHz, DUAL)
· Protector circuit
: Thermal shout down, Over voltage protection, OutVCC short, OutGND short and OutOut short
protection.
· Operating supply voltage range
: VCC (opr) = 9~18V
1 2002-10-30

TA7280P
Block Diagram
DUAL
TA7280,81P
Application Information(this explanatory terminal number is for TA7280P)
1. Voltage gain adjustment
(1) Dual amplifier
The voltage gain GV is determined
by R1, R2 and Rf in (Fig. 1).
GV
=
20log
Rf
+ R1 + R2
Rf + R1
(dB)
In case of Rf = 0
The voltage gain is set as follows:
GV = 52dB (typ.)
(2) BTL amplifier
The recommended BTL connection
amplifier shown in (Fig. 2) .
AMP. 1 is noninverting amplifier and
AMP. 2 is invert one.
The output voltage is divided by
resistors R3 and R4.
The divided voltage is applied to
inverting input of amp. 2. R3 and R4
are determined in the following equation.
R3 + R4
R3
=
20log
Rf
+ R1 + R2
Rf + R1
(dB)
GV in Dual mode
2 2002-10-30


Features TA7280,81P TOSHIBA Bipolar Linear Integr ated Circuit Silicon Monolithic TA7280 P,TA7281P 5.8W Dual Audio Power Amplifi er. 22W BTL Audio Power Amplifier. The TA7280P, TA7281P are dual audio power a mplifier for consumer applications. It is designed for high power, low distort ion and low noise. It also contains var ious kind of protectors. It is suitable for car−audio power amplifier with h igh performance. The kinds of pin confi guration are available: Normal (TA7280P ) and reverse (TA7281P) for easier layo ut design of PC−board when used in BT L−stereo application. Features · Hi gh power : POUT (1) = 22W (typ.) (VCC = 14.4V, f = 1kHz, THD = 10%, RL = 4Ω, BTL) POUT (2) = 19W (typ.) (VCC = 13.2 V, f = 1kHz, THD = 10%, RL = 4Ω, BTL) POUT (3) = 15W (typ.) (VCC = 13.2V, f = 1kHz, THD = 1%, RL = 4Ω, BTL) POUT (4) = 5.8W (typ.) / ch (VCC = 13.2V, f = 1kHz, THD = 10%, RL = 4Ω, DUAL) · Low distortion : THD (1) = 0.03% (typ.) (VCC = 13.2V, f = 1kHz, POUT = 4W, RL = 4Ω, GV = 40dB, BTL) THD (2) = 0.06% (t.
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