DRV110
- Internal Zener Diode on Supply Pin for High-Voltage Operation
- 120- and 230-V AC Supply Through Rectifier and RS Resistor
- 24-V, 48-V, and Higher DC Supply Through RS Resistor
- Drives an External MOSFET With PWM to Control Solenoid Current
- External Sense Resistor for Regulating Solenoid Current
- Fast Ramp-Up of Solenoid Current to Ensure Activation
- Solenoid Current is Reduced in Hold Mode for Lower Power and Thermal Dissipation
- Ramp Peak Current, Keep Time at Peak Current, Hold Current, and PWM Clock Frequency Can Be Set Externally. They Can Also Be Operated at Nominal Values Without External Components.
- Protection
- Thermal Shutdown
- Undervoltage Lockout (UVLO)
- Optional STATUS Output
- Operating Temperature Range: –40ºC to +125ºC
- 8-Pin and 14-Pin TSSOP Package Options
The DRV110 device is a PWM current controller for solenoids. The device is designed to regulate the current with a well-controlled waveform to reduce power dissipation. The solenoid current is ramped up fast to ensure opening of the valve or relay. After initial ramping, the solenoid current is kept at a peak value to ensure correct operation, after which the current is reduced to a lower hold level to avoid thermal problems and reduce power dissipation.
The peak current duration is set with an external capacitor. The peak and hold levels of the current ramp, as well as the PWM frequency, can independently be set with external resistors. External setting resistors can also be omitted if the default values for the corresponding parameters are suitable for the application.
The DRV110 device has an internal Zener diode that limits the supply at VIN to VZENER for applications that require a higher supply voltage. Using the internal Zener, the DRV110 can be powered from 120-V and 230-V AC supplies through a rectifier and current-limiting resistor. High DC voltages such as 48-V can also be accommodated this way.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV110 120- and 230-V AC, 6- to 48-V DC Current Controller for Solenoids, Relays, and Valves datasheet (Rev. G) | PDF | HTML | 2018年 3月 28日 |
| Technical article | Liberate your solenoid or relay from the bonds of supply voltage | PDF | HTML | 2017年 3月 16日 | |
| User guide | DRV110/DRV120 EVM User’s Guide (Rev. B) | 2012年 7月 27日 | ||
| More literature | Smart Relays for Solar Inverters | 2012年 5月 3日 |
設計與開發
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TIDA-00284 — 適用於 230V AC 電磁閥的電流控制驅動器參考設計
TIDA-01621 — 具有電流調節且適用於伺服驅動與機器人的智慧型保持煞車控制器參考設計
TIDA-00289 — 適用於具有柱塞故障偵測功能的 24V DC 電磁閥的電流控制驅動器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。