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HEF4047BT Datasheet(PDF) 3 Page - NXP Semiconductors |
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HEF4047BT Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 36 page  2003 Mar 20 3 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 1 FEATURES • High efficiency (∼90%) • Operating supply voltage from ±12.5 to ±30 V • Very low quiescent current • Low distortion • Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL) • Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL) • High output power • Good ripple rejection • Internal switching frequency can be overruled by an external clock • No switch-on or switch-off plop noise • Short-circuit proof across load and to supply lines • Electrostatic discharge protection • Thermally protected. 2 APPLICATIONS • Television sets • Home-sound sets • Multimedia systems • All mains fed audio systems • Car audio (boosters). 3 GENERAL DESCRIPTION The TDA8922 is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2 × 25 W. The device is available in the HSOP24 power package with a small internal heatsink and in the DBS23P through-hole power package. Depending on the supply voltage and load conditions, a very small or even no external heatsink is required. The amplifier operates over a wide supply voltage range from ±12.5 to ±30 V and consumes a very low quiescent current. 4 QUICK REFERENCE DATA Note 1. See Section 16.5. 5 ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT General; VP = ±20 V VP supply voltage ±12.5 ±20 ±30 V Iq(tot) total quiescent supply current no load connected − 55 75 mA η efficiency Po = 25 W; SE: RL =2 × 8 Ω; fi = 1 kHz − 90 − % Stereo single-ended configuration Po output power RL =8 Ω; THD = 10%; VP = ±20 V; note 1 22 25 − W RL =4 Ω; THD = 10%; VP = ±15 V; note 1 22 25 − W Mono bridge-tied load configuration Po output power RL =8 Ω; THD = 10%; VP = ±15 V; note 1 46 50 − W TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA8922TH HSOP24 plastic, heatsink small outline package; 24 leads; low stand-off height SOT566-3 TDA8922J DBS23P plastic DIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm) SOT411-1 |
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Similar Description - HEF4047BT |
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