Features: 2.7V to 5.5V Single-Supply Operation
1.4W into 4Ω at 1% THD+N
10nA Low-Power Shutdown Mode
73dB PSRR at 1kHz
No Audible Clicks or Pops at Power-Up/Down
Internal Fixed Gain to Reduce Component Count (MAX9717B/C/D)
Adjustable Gain Option (MAX9716/MAX9717A)
BTL</a>/SE Input Senses when Headphones are Connected (MAX9717)
Pin Compatible with LM4890 (MAX9716)
Pin Compatible with TPA711 (MAX9717A)
Available in Compact, Thermally Enhanced µ MAX and TDFN (3mm x 3mm) PackagesApplication-Mobile Phones
-PDAs
-Portable DevicesPinout
SpecificationsSupply Voltage (VCC to GND)..................................-0.3V to +6V
Any Other Pin to GND ...............................-0.3V to (VCC+ 0.3V)
IN_, BIAS, SHDN</a>, BTL</a>/SE Continuous Current.....20mA
OUT_ Short-Circuit Duration to GND or VCC(Note 1)..Continuous
Continuous Power Dissipation (TA= +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C).........1951mW
8-Pin µMAX (derate 10.3mW/°C above +70°C)...........825mW
9-Bump UCSP (derate 5.2mW/°C above 70°C)...........412mW
Operating Temperature Range ......................-40°C to +85°C
Maximum Junction Temperature ..................................+150°C
Storage Temperature Range........................-65°C to +150°C
Lead Temperature (soldering, 10s)..............................+300°C
Bump Temperature (soldering).....................................+235°CDescriptionThe MAX9716/MAX9717 audio power amplifiers are ideal for portable audio devices with internal speakers. A bridge-tied load (BTL) architecture minimizes external component count, while providing high-quality audio reproduction. MAX9717 deliver 1.4W continuous power into a 4Ω load with less than 1% Total Harmonic Distortion (THD) while operating from a single +5V sup-ply. With an 8Ω load, both devices deliver 1W continuous power. These devices also deliver 350mW continuous power into an 8Ω load while operating from a single +3.0V supply. The devices are available as adjustable gain amplifiers (MAX9716/MAX9717A) or with internally fixed gains of 6dB, 9dB, and 12dB (MAX9717B/ MAX9717C/MAX9717D), reducing component count.
A low-power shutdown mode of MAX9717 disables the bias generator and amplifiers, reducing quiescent current consumption to less than 10nA. These devices feature Maxim's industry-leading, comprehensive click-and-pop sup-pression that reduces audible clicks and pops during startup and shutdown.
The MAX9717 features a headphone sense input ( BTL</a>/SE) that senses when a headphone is connected to the device, disables the BTL slave driver, muting the speaker while driving the headphone as a single-ended load.
The MAX9716 is pin compatible with the LM4890 and is available in 9-bump UCSP™, 8-pin TDFN (3mm x 3mm), and 8-pin µMAX packages. The MAX9717 is available in 9-bump UCSP, 8-pin TDFN, and 8-pin µMAX packages. MAX9717 operate over the -40°C to +85°C extended temperature range.
MAX9717 Data Sheet
