SN6501-Q1 Automotive low-noise 350-mA, 410-kHz transformer driver | TI.com

SN6501-Q1
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Automotive low-noise 350-mA, 410-kHz transformer driver

 

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

Parametrics

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Part number Order 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 size: mm2:W x L (PKG) Iout (Max) (A) Shutdown current (Typ) (uA) Switch current limit (Typ) (A) Undervoltage lockout
SN6501-Q1 Order now 3     5.5     0     11     0.25     No       410     620     Automotive     -40 to 125     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)     0.5         0.5      
SN6505A-Q1 Order now 2.25     5.5     0     16     1     Yes     Enable
Short-circuit protection
Spread spectrum clocking
Thermal shutdown
Slew-rate control    
100     600     Automotive     -40 to 125     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)     1.5     1     2     Vin<1.7    
SN6505B-Q1 Order now 2.25     5.5     0     16     1     Yes     Enable
Short-circuit protection
Spread spectrum clocking
Thermal shutdown
Slew-rate control    
100     1600     Automotive     -40 to 125     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)     1.5     1     2     Vin<1.7V    
SN6505D-Q1 Order now 2.25     5.5     0     16     1     No     Enable
Short-circuit protection
Spread spectrum clocking
Thermal shutdown
Slew-rate control    
100     1600     Automotive     -40 to 125     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)     1.5     1     2     Vin<1.7V