MIC4102_11 Datasheet, PDF (1/17 Pages) MIC GROUP RECTIFIERS – 100V Half Bridge MOSFET Driver with Anti-Shoot Through Protection PRELIMINARY SPECIFICATIONS

MIC4102
100V Half Bridge MOSFET Driver
with Anti-Shoot Through Protection
PRELIMINARY SPECIFICATIONS
General Description
The MIC4102 is a high frequency, 100V Half Bridge
MOSFET driver IC featuring internal anti-shoot-through
protection. The low-side and high-side gate drivers are
controlled by a single input signal to the PWM pin. The
MIC4102 implements adaptive anti-shoot-through circuitry
to optimize the switching transitions for maximum
efficiency. The single input control also reduces system
complexity and greatly simplifies the overall design.
The MIC4102 also features a low-side drive disable pin.
This gives the MIC4102 the capability to operate in a non-
synchronous buck mode. This feature allows the MIC4102
to start up into applications where a bias voltage may
already be present without pulling the output voltage down.
Under-voltage protection on both the low-side and high-
side supplies forces the outputs low. An on-chip boot-strap
diode eliminates the discrete diode required with other
driver ICs.
The MIC4102 is available in the SOIC-8L package with a
junction operating range from –40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• Drives high- and low-side N-Channel MOSFETs with
single input
• Adaptive anti-shoot-through protection
• Low side drive disable pin
• Bootstrap supply voltage to 118V DC
• Supply voltage up to 16V
• TTL input thresholds
• On-chip bootstrap diode
• Fast 30ns propagation times
• Drives 1000pF load with 10ns rise and 6ns fall times
• Low power consumption
• Supply under-voltage protection
• 2.5Ω pull up , 1.5Ω pull down output resistance
• Space saving SOIC-8L package
• –40°C to +125°C junction temperature range
Applications
• High voltage buck converters
• Networking / Telecom power supplies
• Automotive power supplies
• Current Fed Push-Pull Topologies
• Ultrasonic drivers
• Avionic power supplies
___________________________________________________________________________________________________________
Typical Application
100V Buck Regulator Solution
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
November 2006
M9999-112806