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даташит TB2924FG PDF ( Datasheet )

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Номер произв TB2924FG
Описание 2-channel (BTL) Low-Frequency Power Amplifier IC
Производители Toshiba Semiconductor
логотип Toshiba Semiconductor логотип 



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TB2924FG Даташит, Описание, Даташиты
TB2924FG
TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic
TB2924FG
Class D, 20 W × 2-channel (BTL) Low-Frequency Power Amplifier IC
The TB2924FG is an audio output IC that employs the highly
efficient class D method, developed for TV and home audio
applications.
The TB2924FG eliminates the need for heatsink(Note), thus
allowing the design of an end product with a small footprint. It
www.DataSheeta4lUs.ocoinmcorporates a range of features, such as standby and muting,
as well as different protective circuits.
Features
Output: POUT = 13 W × 2ch (typ.) BTL
VCC = 12 V, RL = 4 , THD = 10%, f = 1 kHz
Weight: 0.85 g (typ.)
POUT = 7.5 W × 2ch (typ.) BTL
VCC = 12 V, RL = 8 , THD = 10%, f = 1 kHz
POUT = 19.5 W × 2ch (typ.) BTL
VCC = 15 V, RL = 4 , THD = 10%, f = 1 kHz
POUT = 21 W × 2ch (typ.) BTL
VCC = 20 V, RL = 8 , THD = 10%, f = 1 kHz
High efficiency: When output is 10 W η = 88% (VCC = 15 V, RL = 8 )
Distortion: 0.1% (1 W output, f = 1 kHz)
Gain: 34dB (typ.)
Small flat package: HSOP36-P-450-0.65
Muting/standby features
Thermal AGC features
Master and slave oscillation frequencies
Oscillation frequency: fsw = 200 kHz (typ.)
Operating supply voltage range: VCC (opr) = 11 V to 18V (Topr = 0°C to 75°C),
(4 )
VCC (opr) = 11.4 V to 18 V (Topr = −20°C to 75°C)
Operating supply voltage range: VCC (opr) = 11 V to 20V (Topr = 0°C to 75°C),
(8 )
VCC (opr) = 11.4 V to 20 V (Topr = −20°C to 75°C)
Protective circuits: thermal shutdown, short-circuit protection (load)
These protection functions are intended to avoid some output short circuits or other abnormal conditions
temporarily.
These protect functions do not warrant to prevent the IC from being damaged.
In case of the product would be operated with exceeded guaranteed operating ranges, these protection features
may not operate and some output short circuits may result in the IC being damaged.
The TB2924FG does not contain protection circuitry for shorts against VCC and ground. Extra care should be
exercised when output pins serve as line output or adjacent pins are shorted together on the board.
Note: Generally, the average power of the audio signal constitutes only one-fifth to one-tenth of the maximum output
power, and in practice, will not exceed the permissible loss. However, care should be exercised so that it will
not be really exceeded, considering the board’s thermal resistance, ambient temperature, average output
power and so forth. Toshiba has verified that the TB2924FG works properly without a heatsink on the Toshiba
PC board for up to 10-watt by 2-channel output typical (VCC = 15 V, RL = 8 , THD = 10%, f = 1 kHz) with a
sine-wave input.
This product are sensitive to electrostatic discharge. When handling this product, protect the environment to
avoid electrostatic discharge.(MM:±200V OK,HBM:±1500V OK)
Install the product correctly. Otherwise, it may result in break down, damage and/or degradation to the product
or equipment.
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TB2924FG Даташит, Описание, Даташиты
Pin Assignment and Block Diagram
TB2924FG
BOOT OUT PW OUT
NC 2 (+) 2 (+) GND2 2 () NC
36 35 34 33 32 31
BOOT PW
NC 2 () VCC2
30 29 28
Pre OSC
FEEDFEED OSC OSC Pre
GND2 SW IN2 2 () 2 (+) OUT IN VCC NC
27 26 25 24 23 22 21 20 19
AGC
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VCC/2
AGC
AGC
VCC/2
VCC/2
VCC/2
123456789
VREG BOOT OUT NC PW OUT NC BOOT PW
1 (+) 1 (+)
GND1 1 ()
1 () VCC1
AGC
10 11 12 13 14 15 16 17 18
Pre Rip/F NC IN1 FEED FEED STBY MUTE VCC/2
GND1
1 () 1 (+)
*: Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for
explanatory purpose.
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TB2924FG Даташит, Описание, Даташиты
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
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9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Symbol
VREG
BOOT1 (+)
OUT1 (+)
NC
PW GND1
OUT1 ()
NC
BOOT1 ()
PW VCC1
Pre-GND1
Rip/F
NC
IN1
FEED1 ()
FEED1 (+)
STBY
MUTE
VCC/2
NC
Pre VCC
OSC IN
OSC OUT
FEED2 (+)
FEED2 ()
IN2
OSC SW
Pre-GND2
PW VCC2
BOOT2 ()
NC
NC
OUT2 ()
PW GND2
OUT2 (+)
BOOT2 (+)
NC
Description
Reference supply voltage
CH1 bootstrap pin (+)
CH1 main amplifier output pin (+)
No-connection pin (not connected inside the IC)
GND for CH1 main amplifier output stage
CH1 main amplifier output pin ()
No-connection pin (not connected inside the IC)
CH1 bootstrap pin ()
Power supply pin for CH1 main amplifier output stage
Signal GND
Ripple filter pin
No-connection pin (not connected inside the IC)
CH1 main amplifier input pin
CH1 main amplifier feedback pin ()
CH1 main amplifier feedback pin (+)
Standby control pin
Muting control pin
Midpoint potential pin
No-connection pin (not connected inside the IC)
Signal power supply pin
PWM oscillation frequency input pin
PWM oscillation frequency output pin
CH2 main amplifier feedback pin (+)
CH2 main amplifier feedback pin ()
CH2 main amplifier input pin
Oscillator on/off switch pin
Signal GND
Power supply pin for CH2 main amplifier output stage
CH2 bootstrap pin ()
No-connection pin (not connected inside the IC)
No-connection pin (not connected inside the IC)
CH2 main amplifier output pin ()
GND for CH2 main amplifier output stage
CH2 main amplifier output pin (+)
CH2 bootstrap pin (+)
No-connection pin (not connected inside the IC)
TB2924FG
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