SN6505BQDBVRQ1 Description
The SN6505BQDBVRQ1 is a low-noise, low-EMI push-pull transformer driver that was intended primarily for the tiny form factor, isolated power supply. It is powered by a 2.25 V to 5 V DC power source and drives low-profile, centre-tapped transformers. The output switch voltage is slew rate controlled, and Spread Spectrum Clocking is used to achieve very low noise and EMI (SSC). The SN6505BQDBVRQ1 is made up of an oscillator and a gate drive circuit that gives complementary output signals to ground-referenced N-channel power switches.
SN6505BQDBVRQ1 Features
Push-pull driver for transformers
Wide input voltage range: 2.25 V to 5.5 V
High output drive: 1 A at 5 V supply
Low RON 0.25 Ω max at 4.5 V supply
Reduced conducted and radiated EMI
Spread-spectrum clocking
Precision internal oscillator options: 160 kHz (SN6505A-Q1) and 420 kHz (SN6505B-Q1 and SN6505D-Q1)
Synchronization of multiple devices with external clock input
Slew-rate control
1.7 A Current-limit
Low shutdown current: <1 μA
Thermal shutdown
Small 6-Pin SOT23 (DBV) Package
Soft-start enabled (SN6505A-Q1 and SN6505BQ1) to reduce in-rush current and soft-start disabled (SN6505D-Q1) for fast start-up
SN6505BQDBVRQ1 Applications
– Traction inverter and motor control
– DC/DC converter
– Battery management system (BMS)
– On-board charger (OBC)
