SI9976DY

Product :
Supply Voltage - Max :
Mounting Style : SMD/SMT
Packaging : Tube
Type : High Side/Low Side
Fall Time : 50 ns
Maximum Operating Temperature : + 85 C
Supply Current : 10 mA
Maximum Power Dissipation : 1000 mW
Package / Case : SO-14
Rise Time : 110 ns
Supply Voltage - Min : 20 V


Features:

• Single Input for High-Side and Low-Side MOSFETs
• 20- to 40-V Supply
• Static (dc) Operation
• Cross-Conduction Protected
• Undervoltage Lockout
• ESD and Short Circuit Protected
• Fault Feedback


Application

• Power Supplies
• Motor Drives
• Office Automation
• Computer Peripherals
• Industrial Controllers
• Robotics
• Medical Equipment


Pinout




Specifications

Voltage on IN, EN (pins 5, 6)
with respect to ground . . . . . . . . . . . . . . . . . . . . . -0.3 to VDD +0.3 V
Voltage on VCC (pin 7) . . . . . . . . . . . . . .  . . . . . . . . . . . -0.3 to +18 V
Voltage on V+, S1 (pins 3, 13) . . . . . . . . . . . . .. . . . . . . -0.3 to +50 V
Voltage on CAP, G1a (pins 2, 12) . . . . . . . . . . . . . .  . . . -0.3 to +60 V
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .0.5 A
Operating Temperature (TA) . . . . . . . . . . . . . . . . . . . . . . -40 to 85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . .  -50 to 150°C
Maximum Junction Temperature (TJ) . . . . . . . . . . . . . . .  . . . . . 125°C
Power Dissipationb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . 1 W
QJAc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . 100°C/W
Notes
a. Internally generated voltage for reference only.
b. Derate 10 mW/°C above 25°C.
c. PC board mounted with no forced air flow.

Description

The Si9976DY is an integrated driver for an n-channel MOSFET half-bridge. Schmitt trigger inputs provide logic signal compatibility and hysteresis for increased noise immunity. An internal low-voltage regulator allows the device to be powered directly from a system supply of 20 to 40 V. Both half-bridge n-channel gates are driven directly with low-impedance outputs. Addition of one external capacitor allows an internal circuit to level shift both the power supply and logic signal for the half-bridge high-side n-channel gate drive. An internal charge pump replaces leakage current lost in the high-side driver circuit to provide "static" (dc) operation in any output condition. Protection features include an undervoltage lockout, cross-conduction prevention logic, and a short circuit monitor. The Si9976DY is available in the 14-pin SOIC (surface mount) package, specified to operate over the industrial (-40 to 85°C) temperature range.