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MD1810, MD1811, MD1812K6

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Info of MD1810
Info of MD1811
Info of MD1812K6

MD1810, MD1811, MD1812K6 Selling Leads, Datasheet

MFG:MYSON Package Cooled:PLCC84 D/C:06+

MD1810, MD1811, MD1812K6 Datasheet download

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Part Number: MD1810

MFG: MYSON

Package Cooled: PLCC84

D/C: 06+

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MD1811 General Description

The Supertex MD1811 is a high speed, quad MOSFET driver designed to drive high voltage P/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 MD1811 can operate from a 1.2 to 5.0 volt logic interface with an optimum operating input signal range of 1.8 to 3.3 volts. 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 MD1811 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 1.8 volts, the control logic may be powered by +5 and 5 volts, and the output L and H levels may be varied anywhere over the range of 5 to +5 volts. The output stage is capable of peak currents of up to ±2 amps, depending on the supply voltages used and load capacitance present. The OE pin serves a dual purpose. First, its logic H level is used to compute the threshold voltage level for the channel input level translators. Secondly, when OE is low, the outputs are disabled, with the A & C output high and the B & D output low. This assists in properly pre-charging the AC coupling capacitors that may be used in series in the gate drive circuit of an external PMOS and NMOS transistor pair.

MD1811 Maximum Ratings

V_DD-V_SS, Logic Supply Voltage	-0.5V to +13.5V
V_H, Output High Supply Voltage	V_L-0.5V to V_DD+0.5V
V_L, Output Low Supply Voltage	V_SS-0.5V to V_H+0.5V
V_ss, Low Side Supply Voltage	-7V to +0.5V
Logic Input Levels	V_SS-0.5V to V_SS+7V
Maximum Junction Temperature	+125°C
Storage Temperature	-65°C to 150°C
Soldering Temperature	235°C
Package Power Dissipation	2.2W

*Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground.

MD1811 Features

· 6ns rise and fall time
· 2 A peak output source/sink current
· 1.2V to 5V input CMOS compatible
· 5V to 12V total supply voltage
· Smart Logic threshold
· Low jitter design
· Quad matched channels
· Drives two N and two P Channel MOSFETs
· Outputs can swing below ground
· Low inductance quad fl at no-lead package
· High-performance thermally-enhanced

MD1811 Typical Application

· Medical ultrasound imaging
· Piezoelectric transducer drivers
· Nondestructive evaluation
· PIN diode driver
· Clock driver/buffer
· High speed level translator

MD1811 Connection Diagram

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