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MD1822

High Speed 4-Channel MOSFET Driver w/Two Inverting & Two Non-Inverting Outputs

Status: In Production

Features:

  • Mixed inversion MOSFET driver
  • 6.0ns rise and fall time
  • 2.0A peak output source/sink current
  • 1.8 to 5.0V input CMOS compatible
  • 5.0 to 10V total supply voltage
  • Smart logic threshold
  • Low jitter design
  • Four matched channels
  • Drives two P- and two N-channel MOSFETs
  • Outputs can swing below ground
  • Low inductance, quad flat no-lead package
  • High performance, thermally enhanced packaging
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

MD1822 is a high speed, four channel MOSFET driver designed to drive high voltage P- and N-channel MOSFETs for medical ultrasound applications and other applications requiring a high output current for a capacitive load. The high-speed input stage of the MD1822 can operate from a 1.8 to 5.0V logic interface with an optimum operating input signal range of 1.8 to 3.3V. An adaptive threshold circuit is used to set the level translator switch threshold to the average of the input logic 0 and logic 1 levels. The input logic levels may be ground referenced, even though the driver is putting out bipolar signals. The level translator uses a proprietary circuit, which provides DC coupling together with high-speed operation. The output stage of the MD1822 has separate power connections enabling the output signal L and H levels to be chosen independently from the supply voltages used for the majority of the circuit. As an example, the input logic levels may be 0 and 1.8V, the control logic may be powered by +5.0 and -5.0V, and the output L and H levels may be varied anywhere over the range of -5.0 to +5.0V. The output stage is capable of peak currents of up to ±2.0A, depending on the supply voltages used and load capacitance present. The PE pin serves a dual purpose. First, its logic H level is used to compute the threshold voltage level for the channel input level translators. Second, when PE is low, the outputs are disabled, with the A & C output high and the B & D output low. This assists in properly precharging the AC coupling capacitors that may be used in series in the gate drive circuit of an external PMOS and NMOS transistor pair.

Additional Features
  • Mixed inversion MOSFET driver
  • 6.0ns rise and fall time
  • 2.0A peak output source/sink current
  • 1.8 to 5.0V input CMOS compatible
  • 5.0 to 10V total supply voltage
  • Smart logic threshold
  • Low jitter design
  • Four matched channels
  • Drives two P- and two N-channel MOSFETs
  • Outputs can swing below ground
  • Low inductance, quad flat no-lead package
  • High performance, thermally enhanced packaging
Parametrics
Name
Value
# of Channels
4
Input Voltage min (V)
1.7
Input Voltage max (V)
5.25
Output Voltage Bipolar (V)
±5.0
Output Voltage Unipolar (V)
0 - 12
Package
QFN-16

Documents

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User Guides

06/25/2014
724KB
06/25/2014
727KB
06/25/2014
727KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MD1822DB1 Demo Board
MD1822DB1 Demo Board ( MD1822DB1 )

The MD1822DB1 is a demoboard for the three level ±100V 2.5A pulser chip-set of the MD1822 MOSFET driver and the TC7920 MOSFET. The demoboard consists of one MD1822 in the 3x3mm 16-lead QFN package driving the TC7920 which has two pairs of high speed and high voltage complimentary P- and N-MOSFETs in in one 4x4mm, 8-lead DFN package. This circuit is an ideal, cost-optimized, high voltage and...

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MD1822DB2 Demo Board
MD1822DB2 Demo Board ( MD1822DB2 )

The MD1822DB2 is a demoboard for the three level ±100V 2.5A pulser chip-set of the MD1822 MOSFET driver and the TC6320 MOSFET. The demoboard consists of one MD1822 in a 3x3mm, 16-lead QFN package driving the TC6320, which has one pair of high speed and high voltage complimentary P- and N-MOSFETs in one 4x4mm, 8-lead DFN package. This circuit is an ideal, cost-optimized, high voltage and...

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MD1822DB3 Demo Board
MD1822DB3 Demo Board ( MD1822DB3 )

The MD1822DB3 is a demoboard for the three level ±100V 2.5A pulser chip-set of the MD1822 MOSFET driver and the TC8220 MOSFET. The demoboard consists of one MD1822 in the 3x3mm 16-lead QFN package driving the TC8220 which has two pairs of high speed and high voltage complimentary P- and N-MOSFETs in in one 4x4mm, 8-lead DFN package. This circuit is an ideal,...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MD1822K6-G
0.025300
0.154333
16
VQFN
3x3x0.9mm
Matte Tin
e3
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.

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