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ABSOLUT ..
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TS4962EIJT
3W Filter-free Class D Audio Power Amplifier
Operating from Vcc=2.4V to 5.5V Standby mode active low Output power: 3W into 4Ω and 1.75W into 8Ω with 10% THD+N max and 5V power supply. Output power: 2.3W @5V or 0.75W @ 3.0V
into 4Ω with 1% THD+N max. Output power: 1.4W @5V or 0.45W @ 3.0V
into 8Ω with 1% THD+N max. Adjustable gain via external resistors Low current consumption 2mA @ 3V Efficiency: 88% typ. Signal to noise ratio: 85dB typ. PSRR: 63dB typ. @217Hz with 6dB gain PWM base frequency: 250kHz Low pop & click noise Thermal shutdown protection Available in flip-chip 9 x 300um in lead free*
DescriptionThe TS4962 is a differential class-D B.T.L. power
amplifier. Able to drive up to 2.3W into a 4Ω load
and 1.4W into a 8Ω load at 5V. It achieves
outstanding efficiency (88%typ.) compared to
classical AB-class audio amps.
Gain of the device can be controlled via two
external gain setting resistors. POP & CLICK
reduction circuitry provides low on/off switch noise
while allowing the device to start within 5ms.A
standby function (active low) allows to lower the
current consumption to 10nA typ.
Applications Cellular Phone PDA Notebook PC
Pin Connections (top view)
Order Codes 3W Filter-free Class D Audio Power Amplifier
PRELIMINARY DATA
TS4962
TS4962 Absolute Maximum Ratings Absolute Maximum Ratings
Table1. Key parameters and their absolute maximum ratings All voltages values are measured with respect to the ground pin. The magnitude of input signal must never exceed VCC + 0.3V / GND - 0.3V Device is protected in case of over temperature by a thermal shutdown active @ 150°C. Exceeding the power derating curves during a long period, involves abnormal operating condition. The magnitude of standby signal must never exceed VCC + 0.3V / GND - 0.3V
Table2. Operating Conditions For VCC from 2.4V to 2.5V, the operating temperature range is reduced to 0°C≤ Tamb ≤70°C For VCC from 2.4V to 2.5V, the common mode input range must be set at VCC/2. Without any signal on VSTB, the device will be in standby Minimum current consumption shall be obtained when VSTB = GND. With heat sink surface = 125mm2.
Application Component Information TS4962 Application Component Information
Figure 1. Typical application
TS4962 Electrical Characteristics Electrical Characteristics
Table3. VCC= +5V, GND= 0V, VICM =2.5V, Tamb= 25°C (unless otherwise specified) Standby mode is active when Vstdby is tied to GND. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz.
Electrical Characteristics TS4962
Table4. VCC= +4.2V, GND= 0V, VICM= 2.1V, T amb= 25°C (unless otherwise specified) 1 All electrical values are guaranted with correlation measurements at 2.5V and 5V. Standby mode is actived when Vstdby is tied to GND. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz.
