TDA7490 ,25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTLTDA7490®25W + 25W STEREO CLASS-D AMPLIFIER50W MONO IN BTL25W + 25W OUTPUT POWER:R = 8Ω/4Ω; THD = 1 ..
TDA7490L ,15W+15W STEREO CLASS-D AMPLIFIER 28W MONO IN BTLFEATURESORDERING NUMBER: TDA7490LSHORT CIRCUIT PROTECTION ACROSSTHE LOADDESCRIPTIONTHERMAL OVERLOAD ..
TDA7490SA , 10W 10W Stereo Class-D Amplifier
TDA7491HV ,20W+20W dual BTL class-D audio amplifierElectrical specifications . . . . 10Table 6. PowerSSO-36 EPD dimensions . . . . . 31Table ..
TDA7491HV13TR ,20W+20W dual BTL class-D audio amplifierTDA7491HV20 W + 20 W dual BTL class-D audio amplifierDatasheet - production dataDescriptionThe TDA7 ..
TDA7491LP ,5W+5W dual BTL class-D audio amplifierblock diagram (one channel only) . . . . . . 6Figure 2. Pin connection (top view, PCB view) ..
THS3122ID ,Dual, High Output Current, 120-MHz AmplifierElectrical Characteristics: Shutdown Characteristics(THS3125 Only)... 74 Revision HistoryNOTE: Page ..
THS3122IDDA ,Dual, High Output Current, 120-MHz AmplifierFeatures 3 DescriptionThe THS3122 and THS3125 are low-noise, high-1• Low Noise:speed current feedba ..
THS3122IDR , LOW-NOISE, HIGH-SPEED, 450 mA CURRENT FEEDBACK AMPLIFIERS
THS3125CPWP ,Dual, High Output Current, 120-MHz Amplifier With Shutdown SLOS382E–SEPTEMBER 2001–REVISED MAY 2015(1)5 Device OptionsPACKAGED DEVICEEVALUATIONTA SOIC-8 HSOP ..
THS3125ID ,Dual, High Output Current, 120-MHz Amplifier With ShutdownMaximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNITSup ..
THS3125ID ,Dual, High Output Current, 120-MHz Amplifier With ShutdownElectrical Characteristics: Shutdown Characteristics(THS3125 Only)... 74 Revision HistoryNOTE: Page ..
TDA7490
25W + 25W STEREO CLASS-D AMPLIFIER 50W MONO IN BTL
TDA749025W + 25W STEREO CLASS-D AMPLIFIER
50W MONO IN BTL
25W + 25W OUTPUT POWER:
RL = 8Ω/4Ω; THD = 10%
HIGH EFFICIENCY
WIDE SUPPLY VOLTAGE RANGE (FROM
±10 TO ±25V)
SPLIT SUPPLY
TURN OFF/ON POP FREE
ST-BY AND MUTE FEATURES
SHORT CIRCUIT PROTECTION ACROSS
THE LOAD
THERMAL OVERLOAD PROTECTION
EXTERNALLY SINCHRONIZABLE
BRIDGE CONFIGURATION
DESCRIPTIONThe TDA7490 is a dual audio class D amplifier
assembled in Flexiwatt 25 package; it is specially
designed for high efficiency application mainly for
TV and Home Stereo sets.
Figure 1. Test and application circuit. (Stereo Configuration)
Figure 2. Test and application circuit. (Bridge Configuration)
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
TDA7490
PIN CONNECTION (Top view)
PIN FUNCTIONS
TDA7490
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VCC = ±21V; RL = 8Ω; Demod. filter L =30mH, C = 220nF; f = 1KHz; fsw = 200kHz; Tamb = 25°‘C unless otherwise specified.)
*: PO = measured across the load using the following inductor:
COIL58120 MPPA 2 (magnectics) TURNS = 20 ø 1mm
(1) L = 15μH, C = 470nF
(2) ηTop = 90% where VCC = ±25V; RL = 8Ω; PO = 43W + 43W; THD = 20%
(3) ΔGv is intended with R2, R17, R5, R9 1% precision
(4) FSW = 0.25 ⋅ (1/(300ns + R13 ⋅ ( C17 + 76pF) ⋅ 0.85)
(5) VRMAX = (+VCC) - (-VCC) when VR ≥VRMAX the device goes in Stand-By mode
TDA7490
Figure 3. P.C. Board and component layout of the Figs. 1, 2.(for Stereo and Bridge compatible configuration)
TDA7490
THD
(%)
D99AU1088
Stereo
VS ± 21V; Rl=8W;
f=1KHz
Figure 4. Distortion vs. Output PowerTHD
(%)
D99AU1089
Stereo
VS ± 16V; Rl=4W;
f=1KHz
Figure 5. Distortion vs. Output Power(dB)
Figure 6. Crosstalk vs. Frequency 2 4 6 8 10 12 14 16 18 20 22 24 26
Output Power (W)
7.5 Power Dissipation (W)
Figure 8. Power Dissipation vs. Output Power 5
THD
(%)
D99AU1082
Bridge
Figure 9. Distortion vs Output Power in BTL
TDA7490
