Automotive Low-Noise 350 mA, 410 kHz Transformer Driver  - SN6501-Q1

SN6501-Q1 (ACTIVE)

Automotive Low-Noise 350 mA, 410 kHz Transformer Driver

 


Automotive Isolated Current Sense Solution

Check out this total solution for single channel isolated current sense created for automotive applications including high voltage DC/DC power supplies and 3-phase BLDC motor solutions. TI’s solution includes off-the-shelf isolated power eliminating the need for custom magnetics. The Isolated Current Sense Solution enables a small form factor and includes a reference design, development kit, tools and support for faster time-to-market.


Automotive Isolated Current Sense Solution - System Block Diagram
Download Datasheets
  • SN6501-Q1 - Automotive Transformer Driver for Isolated Power Supplies
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Description

The SN6501-Q1 is a monolithic oscillator/power-driver, specifically designed for small form factor, isolated power supplies in isolated interface applications. The device 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 SN6501-Q1 is available in a small SOT-23 (5) package, and is specified for operation at temperatures from –40°C to 125°C.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to 125°C
      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 SOT-23 Package

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Parametrics Compare all products in Transformer Driver

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (A)
Soft Start
Features
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Iout (Max) (A)
Shutdown Current (Typ) (uA)
Pin/Package
Switch Current Limit (Typ) (A)
Type
Undervoltage Lockout
SN6501-Q1
3   
5.5   
0   
11   
0.25   
No   
N/A   
410   
620   
Automotive   
-40 to 125   
SOT-23   
5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
0.5   
N/A   
5SOT-23   
0.5   
Converter (Integrated Switch)   
N/A   

Other qualified versions of SN6501-Q1

Version Part Number Definition
Catalog SN6501 TI's standard catalog product