SN6501-Q1 Datasheet, PDF (1/33 Pages) Texas Instruments – Transformer Driver for Isolated Power Supplies

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SN6501-Q1
SLLSEF3 – JUNE 2013
Transformer Driver for Isolated Power Supplies
Check for Samples: SN6501-Q1
FEATURES
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• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following
Results
– Device Temperature Grade 1: –40ºC to
125ºC Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• Push-Pull Driver for Small Transformers
• Single 3.3 V or 5 V Supply
• High Primary-Side Current Drive:
– 5 V Supply: 350 mA (max)
– 3.3 V Supply: 150 mA (max)
• Low Ripple on Rectified Output Permits Small
Output Capacitors
• Small 5-pin SOT23 Package
APPLICATIONS
• Isolated Interface Power Supply for CAN, SPI,
I2C, Digital IO, Analog IO (ADC and DAC) and
RS-485
• Isolated Output Supply up to 30 V
• Isolated Bipolar Output Supply up to ±15 V
DESCRIPTION
The SN6501-Q1 is a monolithic oscillator/power-
driver, specifically designed for small form factor,
isolated power supplies in isolated interface
applications. It drives a low-profile, center-tapped
transformer primary from a 3.3 V or 5 V DC power
supply. The secondary can be wound to provide any
isolated voltage based on transformer turns ratio.
The SN6501-Q1 consists of an oscillator followed by
a gate drive circuit that provides the complementary
output signals to drive the ground referenced N-
channel power switches. The internal logic ensures
break-before-make action between the two switches.
The device is available in a small SOT23-5 package,
and is specified for operation at temperatures from
–40°C to 125°C.
Figure 1. Typical Operating Circuit
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated