Datasheet for LTC4444HMS8E#WPBF:
- Manufacturer Part Number : LTC4444HMS8E#WPBF
- Manufacturer : AD
- Description : High Voltage Synchronous N-Channel MOSFET Driver IC
- Series : LTC4444
- Reference Price : USD 1.84
- Our Price : We have a better price, contact us by email
- Product Type : High Side Switches & MOSFET Drivers
- Function : -
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 8-Lead MSOP w/ EP
- Pins : 8
- MFG Package Case : 05-08-1662
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 50
- Working Temperature : -40 to 150C
- Other Part Number : LTC4444HMS8E#WPBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- AEC-Q100 Qualified for Automotive Applications
- Bootstrap Supply Voltage to 114V
- Wide VCC Voltage: 7.2V to 13.5V
- Adaptive Shoot-Through Protection
- 2.5A Peak TG Pull-Up Current
- 3A Peak BG Pull-Up Current
- 1.2Ω TG Driver Pull-Down
- 0.55Ω BG Driver Pull-Down
- 5ns TG Fall Time Driving 1nF Load
- 8ns TG Rise Time Driving 1nF Load
- 3ns BG Fall Time Driving 1nF Load
- 6ns BG Rise Time Driving 1nF Load
- Drives Both High and Low Side N-Channel MOSFETs
- Undervoltage Lockout
- Thermally Enhanced 8-Lead MSOP Package
The LTC4444 is a high frequency high voltage gate driver that drives two N-channel MOSFETs in a synchronous DC/DC converter with supply voltages up to 100V. This powerful driver reduces switching losses in MOSFETs with high gate capacitance.
The LTC4444 is configured for two supply-independent inputs. The high side input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 114V above ground.
The LTC4444 contains undervoltage lockout circuits that disable the external MOSFETs when activated. Adaptive shoot-through protection prevents both MOSFETs from conducting simultaneously.
For a similar driver in this product family, please refer to the chart below.
| Parameter | LTC4444 | LTC4446 | LTC4444-5 |
| Shoot-Through Protection | Yes | No | Yes |
| Absolute Max TS | 100V | 100V | 100V |
| MOSFET Gate Drive | 7.2V to 13.5V | 7.2V to 13.5V | 4.5V to 13.5V |
| VCC UV+ | 6.6V | 6.6V | 4V |
| VCC UV– | 6.15V | 6.15V | 3.55V |
Applications
- Distributed Power Architectures
- Automotive Power Supplies
- High Density Power Modules
- Telecommunications
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
