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MIC4429ZM
Microchip Technology
IC GATE DRVR LOW-SIDE 8SOIC
2488 Pcs New Original In Stock
Low-Side Gate Driver IC Inverting 8-SOIC
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5.0 / 5.0
- (229 Ratings)
MIC4429ZM
Product Overview
1353347
DiGi Electronics Part Number
MIC4429ZM-DGManufacturer
Microchip Technology
MIC4429ZM
Description
IC GATE DRVR LOW-SIDE 8SOICInventory
2488 Pcs New Original In Stock
Low-Side Gate Driver IC Inverting 8-SOIC
Quantity
Minimum 1
Minimum 1
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MIC4429ZM Technical Specifications
Category
Power Management (PMIC), Gate Drivers
Packaging
Tube
Series
-
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Driven Configuration
Low-Side
Channel Type
Single
Number of Drivers
1
Gate Type
N-Channel, P-Channel MOSFET
Voltage - Supply
4.5V ~ 18V
Logic Voltage - VIL, VIH
0.8V, 2.4V
Current - Peak Output (Source, Sink)
6A, 6A
Input Type
Inverting
Rise / Fall Time (Typ)
12ns, 13ns
Operating Temperature
0°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOIC
Base Product Number
MIC4429
Datasheet & Documents
HTML Datasheet
MIC4429ZM-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MIC4429ZM-DG
576-1799-5
1611-MIC4429ZM
Standard Package
95
Alternative Parts
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MANUFACTURER
QUANTITY AVAILABLE
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UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
이곳에서 구매하면 항상 빠르고 저렴하게 받을 수 있어서 좋아요. 추천합니다.
Dec 02, 2025
User account management was easy and accessible through the site.
Dec 02, 2025
Received my orders faster than I expected, great service from DiGi Electronics.
Dec 02, 2025
Order arrived early and was packed with such care that it felt very secure.
Dec 02, 2025
The craftsmanship behind their offerings is second to none, ensuring my projects turn out perfect.
Dec 02, 2025
Their products stand the test of time and are much easier on the wallet.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the MIC4429ZM in a high-temperature industrial application near its maximum junction temperature?
When designing the MIC4429ZM into high-temperature environments (approaching 150°C TJ), thermal management becomes critical. Even though the MIC4429ZM is rated for operation up to 150°C, sustained high temperatures can accelerate electromigration and reduce long-term reliability. To mitigate this, ensure adequate PCB copper pour for heatsinking, especially on the ground-connected pins, and verify thermal performance under worst-case load conditions. Monitor the junction temperature via environmental testing, particularly when driving MOSFETs with high gate charges at high frequencies, as increased power dissipation in the driver can create thermal runaways if not properly managed.
How does the inverting input configuration of the MIC4429ZM affect signal timing in a low-side switching circuit, and what layout considerations minimize timing errors?
The inverting input of the MIC4429ZM means a high logic input produces a low output, which can introduce confusion in PWM signal sequencing if not accounted for in the MCU firmware. Timing errors may also arise due to propagation delay mismatches in noisy environments. To minimize risks, synchronize the inversion logic in the control firmware early and use tight layout practices: keep the input trace short and routed away from switching nodes, employ a solid ground plane, and place a 0.1µF ceramic bypass capacitor as close as possible to the VDD and GND pins. This reduces noise coupling that could cause unintended transitions.
Can the MIC4429ZM reliably replace the TC4429COA in an existing design, and are there any performance or compatibility risks?
Yes, the MIC4429ZM is a direct functional replacement for the TC4429COA, sharing the same inverting low-side configuration, 6A peak drive, and 8-SOIC package. However, subtle differences in propagation delay characteristics or enable timing (if applicable) may exist due to manufacturing process variations. To ensure compatibility, validate the switching timing across temperature and supply voltage ranges, particularly if operating near 4.5V where drive strength begins to drop. Also confirm that the input threshold levels (VIL=0.8V, VIH=2.4V) are compatible with the driving logic—some TC4429-based designs feed 3.3V logic signals, which the MIC4429ZM supports reliably.
What are the consequences of operating the MIC4429ZM below its minimum supply voltage of 4.5V, and how can undervoltage issues be avoided in battery-powered systems?
Operating the MIC4429ZM below 4.5V risks incomplete MOSFET enhancement, leading to higher conduction losses, MOSFET overheating, and potential device failure. The output stage may not fully saturate, resulting in slow transitions and shoot-through in half-bridge configurations if paired improperly. In battery-powered systems, implement a voltage supervisor or use a buck-boost regulator to maintain the MIC4429ZM’s supply within its specified 4.5V–18V range. Avoid direct connection to lithium batteries near end-of-discharge (e.g., <3.6V) without regulation.
What reliability risks arise when using the MIC4429ZM to drive large gate capacitance in motor control applications, and how can drive strength and thermal issues be managed?
Driving large gate capacitances (e.g., >10nF) with the MIC4429ZM increases peak current demand and internal power dissipation, raising junction temperature and stressing internal bond wires over time. While the MIC4429ZM can deliver 6A peak sink/source, continuous high-frequency switching into heavy capacitive loads may cause cumulative thermal stress. To manage this, limit switching frequency based on thermal derating curves, use multiple parallel drivers only if current sharing is ensured, or opt for a buffered gate drive stage. Also, include a small gate resistor (e.g., 5–10Ω) to damp ringing and reduce EMI, improving long-term reliability in noisy motor environments.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MIC4429ZM CAD Models
Microchip Technology MIC4429ZM PCB symbols & footprints
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