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TB2924FG データシート(Datasheet) 1 Page - Toshiba Semiconductor |
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TB2924FG 2006-01-25 1 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 also incorporates 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 Ω, THD = 10%, f = 1 kHz POUT = 7.5 W × 2ch (typ.) BTL VCC = 12 V, RL = 8 Ω, THD = 10%, f = 1 kHz POUT = 19.5 W × 2ch (typ.) BTL VCC = 15 V, RL = 4 Ω, THD = 10%, f = 1 kHz POUT = 21 W × 2ch (typ.) BTL VCC = 20 V, RL = 8 Ω, THD = 10%, f = 1 kHz • High efficiency: When output is 10 W η = 88% (VCC = 15 V, RL = 8 Ω) • 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 Ω) 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 Ω) 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 Ω, 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. Weight: 0.85 g (typ.) |
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