Datasheet Pdf %21%21exclusive%21%21 — Sn51dp

The SN51 series typically functions as a Dual 2-wide 2-input AND-OR-INVERT (AOI) Gate.

One of the most common uses for the SN51DP is in a push-pull isolated DC-DC converter. This topology is ideal for generating isolated 5V, 12V, or 15V rails from a low-voltage DC source (e.g., 12V battery).

How does the SN51DP stack up against other popular driver ICs? sn51dp datasheet pdf %21%21EXCLUSIVE%21%21

| Part Number | Topology | Max Freq | Output Current | UVLO | Deadtime Control | | :--- | :--- | :--- | :--- | :--- | :--- | | SN51DP | Push-Pull, Forward | 500 kHz | 1.0A | Yes | Yes (Pin 4) | | SG3525 | Push-Pull, Forward | 400 kHz | 0.5A | Yes | Yes (Pin 5) | | TL494 | Push-Pull, Single-ended | 300 kHz | 0.2A | No | Yes (Pin 4) | | UC3842 | Single-ended (Flyback) | 500 kHz | 1.0A | Yes | No (Requires external) |

Verdict: The SN51DP offers a strong balance of high peak current (1A) and flexible deadtime control, making it superior to the TL494 for driving larger MOSFETs. It is comparable to the SG3525 but may offer better pricing depending on the supplier. The SN51 series typically functions as a Dual

If the SN51DP is a display module (as "DP" often stands for Decimal Point), it is likely a common Anode/Cathode LED display.

| Parameter | Conditions | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | Supply Current (Icc) | No load, f=100kHz | 10 | 15 | 20 | mA | | UVLO Threshold (Turn-On) | Vcc rising | 7.5 | 8.0 | 8.5 | V | | UVLO Hysteresis | | | 0.5 | | V | | Oscillator Frequency Range | RT=10k, CT=1nF | 80 | 100 | 120 | kHz | | Output Rise Time | C_load=1000pF | | 50 | | ns | | Output Fall Time | C_load=1000pF | | 50 | | ns | | Peak Output Current | | 0.8 | 1.0 | 1.2 | A | | Parameter | Conditions | Min | Typ

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