TLP250 Mosfet Driver Dip-8
The TLP250 arrives as a compact, 8-lead DIP optocoupler built around a GaAlAs LED and an integrated photodetector. Its design communicates purposefulness: a small, self-contained module that isolates control and power domains while packaging the drive circuitry in a familiar DIP footprint. The body feels utilitarian and immediately signals that it belongs on a designer’s workbench or inside a power electronics module.
Physically modest yet mechanically robust, the device presents the tidy geometry of through-hole components and a clear pin assignment that makes it straightforward to wire into gate-drive circuits. A recommended bypass capacitor between VCC and GND is emphasized in the layout guidance, underlining that the part is intended to be used as an active, stabilized driver rather than a passive coupler.
When seen in context – mounted on a PCB driving an IGBT or power MOSFET – the TLP250 reads as an engineered interface: an electromechanical handshake that translates low-power LED signals into substantial push/pull output currents while preserving galvanic isolation. Its presence simplifies the board-level layout for gate-drive stages and gives designers a clearly defined building block for switching power systems.
Features:
- 8-lead DIP package (through-hole).
- GaAlAs LED + integrated photodetector design.
- High peak output capability (±1.5 A listed as absolute peak).
- Wide recommended supply voltage window (VCC typically 10–35 V).
- Fast switching (propagation delays typically ~0.15 µs; spec max around 0.5–1.5 µs depending on condition).
- High isolation rating (isolation voltage ≥ 2500 Vrms; VDE/UL options noted).
Specifications:
| Specification (symbol) | Typical / Range / Notes |
|---|---|
| Package: | 8-lead DIP, weight ≈ 0.54 g. |
| Input forward voltage VF (IF=10 mA): | Typ 1.6 V — 1.8 V |
| Input reverse voltage VR: | 5 V (max) |
| Input capacitance CT (f=1 MHz): | Typ 45 pF (max 250 pF) |
| Input forward current (IF max, abs): | 20 mA |
| Supply voltage VCC (recommended): | Typ 20 V; min 10 V — max 35 V |
| Output voltage VO (Ta ≤70°C): | Max 35 V (derates above 70°C) |
| Peak output current (absolute): | IOPH/IOPL ±1.5 A (short pulses) |
| Rated peak output (recommended conditions): | ±0.5 A (typ in recommended ops) |
| Supply current ICC (VCC=30V, IF=10mA): | Max ≈ 11 mA |
| Threshold input current (L→H): | Typ 1.2 mA (max 5 mA) |
| Propagation delay tpLH / tpHL: | Typ 0.15 µs, max ~0.5 µs (conditions apply) |
| Common-mode transient immunity (CMH/CML): | ±5000 V/µs (typ test condition at 600 V CM) |
| Isolation voltage (BV, AC, 1 min): | Min 2500 Vrms |
| Operating temp: | −20 °C to +85 °C |
| Storage temp: | −55 °C to +125 °C |
| Isolation resistance RS (500 V): | Typ 10¹² – 10¹⁴ Ω |
Pin Configuration Description
| PINS | Details |
|---|---|
| 1. NC | .No Connection – Not used |
| 2. Anode | Anode terminal of LED diode |
| 3. Cathode | The cathode terminal of the LED |
| 4. NC | .No Connection – Not used |
| 5. GND | Connect with the Ground of the power supply |
| 6. Vo | Output terminal |
| 7. Vo | Output terminal |
| 8. Vcc | Connect with the Positive terminal of the power supply |
Pinout Diagram:
Footprint:
Applications:
- Transistor Inverter.
- Inverter for Air Conditioner.
- IGBT Gate Drive.
- Power MOSFET Gate Drive.
Package Contents:
- 1x TLP250 Mosfet Driver Dip-8
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