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.
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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 |
|
3 | 5.5 | 0 | 11 | 0.25 | No | 410 | 620 | Catalog | -40 to 125 | 5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5) | 0.5 | 0.5 | |||
| SN6505A |
|
2.25 | 5.5 | 0 | 16 | 1 | Yes |
Enable
Short-circuit protection Spread spectrum clocking Thermal shutdown Slew-rate control |
100 | 600 | Catalog | -55 to 125 | 6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6) | 1.5 | 1 | 2 | Vin<1.7 |
| SN6505B |
|
2.25 | 5.5 | 0 | 16 | 1 | Yes |
Enable
Short-circuit protection Spread spectrum clocking Thermal shutdown Slew-rate control |
100 | 1600 | Catalog | -55 to 125 | 6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6) | 1.5 | 1 | 2 | Vin<1.7V |
