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TNY284DG
+BOMIC OFFLINE SWITCH FLYBACK 8SO
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Nhà sản xuấtPower Integrations
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Ông. Phần #TNY284DG
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Bảng dữ liệu TNY284DG DataSheet
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Gói 8-SOIC
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Có sẵn8869
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tube |
| Series | TinySwitch®-4 |
| ProductStatus | Discontinued at Digi-Key |
| OutputIsolation | Isolated |
| InternalSwitch(s) | Yes |
| Voltage-Breakdown | 725V |
| Topology | Flyback |
| DutyCycle | 67% |
| Frequency-Switching | 124kHz ~ 140kHz |
| Power(Watts) | 6 W |
| FaultProtection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
| ControlFeatures | EN |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| Package/Case | 8-SOIC (0.154, 3.90mm Width), 7 Leads |
| SupplierDevicePackage | SO-8C |
Tổng quan
Description
Key features: built-in HV startup, current limiting, thermal shutdown, undervoltage lockout, and automatic restart on overload. It typically requires only a few external components to implement an isolated SMPS.
Electricals (typical): input range 85–265 VAC; designed for low-to-moderate output power (a few watts, depending on transformer design).
Package: DG suffix denotes a specific 8‑pin package variant.
Usage: suitable for compact flyback designs with a transformer, secondary rectifier, and output filter.
For exact specs (pinout, protection thresholds, thermal data), refer to the TNY284DG datasheet.
Equivalent
Features
- 700 V integrated high‑voltage MOSFET with primary‑side PWM control
- Valley switching and current‑mode control for high efficiency
- Built‑in start‑up/bias circuitry; minimal external parts
- Fixed oscillator (approx. 60–70 kHz) with EMI-friendly jitter
- Protection: overcurrent/short‑circuit, thermal shutdown, and undervoltage protection
- Very low standby power; suitable for energy‑efficient offline supplies
- 8-pin DIP (DG) package; cost‑effective for simple flyback designs
- Designed for off‑line flyback converters; typically used in 5–15 W adapters (depends on transformer design)
Note: Exact electrical specs depend on the specific application and transformer design.
Pinout
- Function: TinySwitch device with an integrated high-voltage MOSFET for off-line flyback power supplies. It provides the primary-side switching and regulation, using an opto-coupled feedback loop to regulate the output. Typical pins relate to: DRAIN (high-voltage input from the primary), SOURCE (return/ground for the primary), VCC (IC supply from auxiliary/bulk), FB (feedback input), and CS/IS (current sense). For the exact pinout, refer to the datasheet.
Manufacturer
- What kind of company: A semiconductor company that designs high-voltage switching integrated circuits for switch‑mode power supplies; it is a fabless company (designs ICs and outsources fabrication).
Application
- AC–DC wall adapters and USB chargers
- Constant-current LED driver circuits (low to mid power)
- Standby/auxiliary power supplies for consumer electronics (set-top boxes, AV gear)
- Small OEM power supplies for portable devices and gadgets
Note: TNY284DG is a TinySwitch family device (integrated high-voltage MOSFET) intended for compact, low-power offline SMPS applications.
