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High-Frequency 6A Sink Synchronous MOSFET Drivers with Protection Features

封装信息

CAD 模型: View CAD Model
Pkg. Type: DFN
Pkg. Code: LBT
Lead Count (#): 10
Pkg. Dimensions (mm): 3.00 x 3.00 x 0.90
Pitch (mm): 0.5

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US)
HTS (US)

产品属性

Lead Count (#) 10
Carrier Type Tube
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) 0 to +70°C
IS (mA) 8
Length (mm) 3
MOQ 1000
No Load IS (Max) 4.5
Output Per Driver LGATE Source|Sink 4|6
Output Per Driver UGATE Source|Sink 2.5|4
Parametric Category Multiphase DC/DC Switching Controllers
Phase Voltage (Max) 15VDC, 30V (<200ns)
Phase Voltage (Min) GND - 0.3VDC GND - 8V (<400ns)
Pitch (mm) 0.5
Pkg. Dimensions (mm) 3.0 x 3.0 x 0.90
Pkg. Type DFN
Qualification Level Standard
Thickness (mm) 0.9
VDRIVE (V) (V) 4.5 - 4.5
VIN/VPWM (Max) 15
Width (mm) 3

描述

The ISL6615 is a high-speed MOSFET driver optimized to drive upper and lower power N-Channel MOSFETs in a synchronous rectified buck converter topology. This driver, combined with an Intersil Digital or Analog multiphase PWM controller, forms a complete high frequency and high efficiency voltage regulator. The ISL6615 drives both upper and lower gates over a range of 4. 5V to 13. 2V. This drive-voltage provides the flexibility necessary to optimize applications involving trade-offs between gate charge and conduction losses. The ISL6615 features 6A typical sink current for the low-side gate driver, enhancing the lower MOSFET gate hold-down capability during PHASE node rising edge, preventing power loss caused by the self turn-on of the lower MOSFET due to the high dV/dt of the switching node. An advanced adaptive zero shoot-through protection is integrated to prevent both the upper and lower MOSFETs from conducting simultaneously and to minimize the dead time. The ISL6615 includes an overvoltage protection feature operational before VCC exceeds its turn-on threshold, at which the PHASE node is connected to the gate of the low side MOSFET (LGATE). The output voltage of the converter is then limited by the threshold of the low side MOSFET, which provides some protection to the load if the upper MOSFET(s) is shorted. The ISL6615 also features an input that recognizes a high-impedance state, working together with Intersil multiphase PWM controllers to prevent negative transients on the controlled output voltage when operation is suspended. This feature eliminates the need for the Schottky diode that may be utilized in a power system to protect the load from negative output voltage damage.