Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MD0101

High Voltage Protection T/R Switch w/Clamp Diodes

Status: In Production

Features:

  • Up to ±100V input voltage protection
  • Low on resistance - 15Ω typical
  • Integrated clamp diodes
  • Fast switching speed
  • Four electrically isolated channels
  • No external supplies needed
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Buy Now

Device Overview

Summary

MD0101 is a four channel, high voltage, current limiting protection device. It is designed to protect a low noise receiver from the high voltage transmit pulses in ultrasound applications and is commonly referred to as a T/R (transmit and receive) switch. Each channel has three terminals; Tx, Rx, and RGND. The analog switch terminals are Tx and Rx. Rx has integrated clamping diodes to RGND to protect the receiver against high voltages. Voltages greater than ±0.6V will start forward biasing the clamp diodes to RGND. The MD0101 can be considered as a normally closed switch with a typical switch resistance of 15O, allowing small signals to pass. Once the voltage drop across the switch exceeds a nominal value of ±1.0V, the device will start to turn off. In the off state, the MD0101 can withstand up to ±100V across its terminals. A small amount of current, 200µA, is allowed to flow through. The MD0101 is not limited to just ultrasound applications. It can also be used for resettable fuses to protect power lines, output short circuit protection, and data acquisition. The MD0101 is available in an 18-Lead, 5x5mm DFN package as a four channel device for high density requirements.

Additional Features
    • Up to ±100V input voltage protection
    • Low on resistance - 15Ω typical
    • Integrated clamp diodes
    • Fast switching speed
    • Four electrically isolated channels
    • No external supplies needed
Parametrics
Name
Value
# of Channels
4
Voltage (V)
±100
RSW
15
Diode Clamps
Yes
VTRIP (V)
±2.0
BW (MHz)
100
Package
DFN-8

Documents

Jump to:

User Guides

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MD0101DB1 Demo Board
MD0101DB1 Demo Board ( MD0101DB1 )

The MD0101DB1 demoboard contains two MD0101 packages providing eight T/R switches in the system. This demoboard replaces eight discrete diode bridge protection circuits. The input of the MD0101DB1 is called TX, which is connected to the output of the transmitter, and the output is called RX, which is connected to the input of the receiver. The clamping diodes are integrated between the...

Learn More
Add To Cart

Similar Devices

Product
# of Channels
Voltage (V)
Price 5K
1 or 2
±100
$0.84
4
±100
$3.53
4
±130
$3.21

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MD0101K6-G
0.044900
0.489796
18
VDFN
5x5x1.0mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy