SN6501 Texas instruments

SN6501

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SN6501

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Описание

The SN6501 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 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 is available in a small SOT-23 (5) package, and is specified for operation at temperatures from –40°C to 125°C.

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

Rating	Catalog
Iout (typ) (A)	0.35
Vin (min) (V)	3
Vin (max) (V)	5.5
Soft start	No
Operating temperature range (°C)	-40 to 125
Iout (max) (A)	0.5
Switching frequency (min) (kHz)	300
Switching frequency (max) (kHz)	620
Switch current limit (typ) (A)	0.5