Microchip MIC4606 Bedienungsanleitung
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2017-2022
Microchip Technology Inc. and its subsidiariesDS20005604G-page 1
MIC4606
Features
•5.5V to 16V Gate Drive Supply Voltage Range
•Advanced Adaptive Dead Time
•Intelligent Shoot-Through Protection
•MIC4606-1: Four Independent TTL Inputs
•MIC4606-2: Two PWM Inputs
•Enable Input for On/Off Control
•On-Chip Bootstrap Diodes
•Fast 35ns Propagation Times
•Drives 1000pF Load with 20ns Rise and
Fall Times
•Low Power Consumption: 235µA Total Quiescent
Current
•Separate High-Side and Low-Side Undervoltage
Protection
•-40°C to +125°C Junction Temperature Range
Applications
•Full-Bridge Motor Drives
•Power Inverters
•High-Voltage Step-Down Regulators
•Distributed Power Systems
•Stepper Motors
General Description
The MIC4606 is an 85V full-bridge MOSFET driver that
features adaptive dead time and shoot-through protec-
tion. The adaptive dead-time circuitry actively monitors
both sides of the full bridge to minimize the time
between high-side and low-side MOSFET transitions,
thus maximizing power efficiency. Anti-shoot-through
circuitry prevents erroneous inputs and noise from
turning both MOSFETs of each side of the bridge on at
the same time.
The MIC4606 also offers a wide 5.5V to 16V operating
supply range to maximize system efficiency. The low
5.5V operating voltage allows longer run times in
battery-powered applications. Additionally, the MIC4606
device’s adjustable gate drive sets the gate drive voltage
to V
DD
for optimal MOSFET R
DS(ON)
, which minimizes
power loss due to the MOSFET’s R
DS(ON)
.
The MIC4606-1 features four independent inputs while
the MIC4606-2 utilizes two PWM inputs, one for each
side of the H-bridge. The MIC4606-1 and MIC4606-2
are available in a 16-pin 4 mm x 4 mm QFN package,
and a 16-pin 4 mm x 5 mm TSSOP package with an
operating temperature range of -40°C to +125°C.
Typical Application Circuit
μC
MIC4606
M
V
DD
5.5V-85V
MIC28511
V
OUT
V
IN
12V
MCP1826
V
OUT
V
IN
3.3V
BHI
BLI
AHI
ALI
BHB
BHO
BHS
BLO
AHB
AHO
AHS
ALO
MIC4606
(DC Motor Drive Application)
85V Full-Bridge MOSFET Drivers with Adaptive Dead Time and
Shoot-Through Protection
Produktspezifikationen
| Marke: | Microchip |
| Kategorie: | Nicht kategorisiert |
| Modell: | MIC4606 |
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