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MAX20328, MAX20328A

MUX Switch for USB Type-C Audio Adapter Accessories

OVP and Surge Protected Audio Accessory Switch for USB Type-C

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Overview

Description

The MAX20328/MAX20328A are USB Type-C audio interface ICs for use in portable devices. As USB Type-C and USB power delivery (PD) make a high-voltage charging solution readily available, the data and SBU lines are at risk of shorting to a high bus voltage, risking permanent damage to the portable device. USB 2.0 data lines also need protection when multiplexed with analog audio signals that vary from positive to negative voltages. The devices can detect a CC pin connection event to disable the microphone bias and eliminate pop up noise when an audio accessory is attached.

The MAX20328/MAX20328A come in a 5 x 5 array, 25-bump, 0.4mm pitch, 2.31mm x 2.31mm wafer-level package (WLP).

MAX20328, MAX20328A: Block Diagram

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Key Features

Versatile and Flexible Switch Configurations
- High-Speed USB Data or Audio Switch Paths
- Automatic Impedance Detection in Audio Configurations
- Full Manual Switch Control
- Beyond-the-Rails™ Signal Capability
Overvoltage Protected Data and Audio Channels
- Two Separate OVLO Blocks
- OVLO Threshold Programmable to 3.37V, 4.00V, 4.70V, or 5.00V
Negative Voltage Capable Audio Channel
- ±5V Audio Signals (Limited by Positive OVLO Threshold)
- -100dB THD+N
- -100dB PSRR at 217Hz
High ESD and Surge-Protected USB Type-C Contacts
- ±12kV HBM
- ±25V Surge Capable on USB Type-C Pins
Minimal Solution size
- 5 x 5 Array, 0.4mm Pitch 2.31mm x 2.31mm WLP

Applications/Uses

Phablets
Smart Phones
Tablet PCs

Parametric Specs

Part Number

V_IN
(V)

Over Voltage Trip Level
(V)

Under Voltage Lockout
(V)

Oper. Temp.
(°C)

Package/Pins

Budgetary
Price

min

max

See Notes

MAX20328

2.7

5.5

Adjustable

2.4

-40 to +85

WLP/25

$1.44 @1k

MAX20328A

WLP/25

$1.45 @1k

MAX20328B

WLP/25

See All Overvoltage Protection Controllers (78)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX20328AEVKIT: Evaluation Kit for the MAX20328A/MAX20328

Quality and Environmental Data

Request Reliability Report for: MAX20328 MAX20328A
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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