Specification	MAX98400AETX+

Features	Short-Circuit and Thermal Protection, Depop, Differential Inputs, Shutdown
Max Output Power x Channels @ Load	20 W, 2
Mounting Type	Surface Mount
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Output Type	2-Channel (Stereo)
Package / Case	36-WFQFN Exposed Pad
Supplier Device Package	36-TQFN
Supplier Device Package [x]	6
Supplier Device Package [y]	6
Type	Class D
Voltage - Supply [Max]	28 V
Voltage - Supply [Min]	8 V

MAX98400 Series

Stereo, High-Power, Class D Amplifier

Part	Supplied Contents	Board Type	Output Type	Max Output Power x Channels @ Load	Utilized IC / Part	Contents	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Operating Temperature [Max]	Operating Temperature [Min]	Features	Mounting Type	Type	Max Output Power x Channels @ Load [custom]
Analog Devices Inc./Maxim Integrated MAX98400AEVKIT+	Board(s)	Fully Populated	2-Channel (Stereo)	2 20 W	MAX98400A	Board(s)	28 V	8 V
Analog Devices Inc./Maxim Integrated MAX98400AETX+T			2-Channel (Stereo)	2 20 W			28 V	8 V	36-WFQFN Exposed Pad	6	36-TQFN	6	85 C	-40 ¯C	Depop Differential Inputs Short-Circuit and Thermal Protection Shutdown	Surface Mount	Class D
Analog Devices Inc./Maxim Integrated MAX98400BEVKIT+	Board(s)	Fully Populated	2-Channel (Stereo)	12 W	MAX98400B	Board(s)	28 V	8 V										2
Analog Devices Inc./Maxim Integrated MAX98400BETG+			2-Channel (Stereo)	12 W			28 V	8 V	24-WFQFN Exposed Pad		24-TQFN (4x4)		85 C	-40 ¯C	Depop Differential Inputs Short-Circuit and Thermal Protection Shutdown	Surface Mount	Class D	2
Analog Devices Inc./Maxim Integrated MAX98400AETX+			2-Channel (Stereo)	2 20 W			28 V	8 V	36-WFQFN Exposed Pad	6	36-TQFN	6	85 C	-40 ¯C	Depop Differential Inputs Short-Circuit and Thermal Protection Shutdown	Surface Mount	Class D
Analog Devices Inc./Maxim Integrated MAX98400BETG+T			2-Channel (Stereo)	12 W			28 V	8 V	24-WFQFN Exposed Pad		24-TQFN (4x4)		85 C	-40 ¯C	Depop Differential Inputs Short-Circuit and Thermal Protection Shutdown	Surface Mount	Class D	2

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 4.37
		10	$ 2.95
		25	$ 2.58
		100	$ 2.30

Description

General part information

MAX98400 Series

The MAX98400A/MAX98400B Class D amplifiers provide high-performance, thermally efficient amplifier solutions. The MAX98400A delivers 2x20W into 8Ω loads or 1x40W into a 4Ω load. The MAX98400B delivers 2x12W into 8Ω loads.An integrated limiting circuit prevents output clipping distortion, protects small speakers from transient voltages, and reduces power dissipation.A thermal-foldback feature can be enabled to automatically reduce the output power at above a junction temperature of +120°C. Traditional thermal protection is also available in addition to robust overcurrent protection.The ICs operate from a single 8V to 28V supply and provide a high 67dB PSRR, eliminating the need for a regulated power supply. They offer up to 90% efficiency from a 12V supply.Filterless modulation allows the ICs to pass EN55022B EMI limits with 1m cables using only a low-cost ferrite bead and small-value capacitor on each output.Both devices feature eight-digitally-controlled gain settings.Comprehensive click-and-pop reduction circuitry minimizes noise coming into and out of shutdown.The MAX98400A/MAX98400B are available in 36-pin and 24-pin TQFN packages, respectively, and are specified over the -40°C to +85°C temperature range.ApplicationsLCD MonitorsLCD/PDP TelevisionsMP3 Docking StationsNotebook PCs

Documents

Technical documentation and resources

MAX98400A Reliability Data

Reliability Data

MAX98400A-MAX98400B: Stereo, High-Power, Class D Amplifier Data Sheet (Rev.3)

Data Sheet