mic4126 Micrel Semiconductor, mic4126 Datasheet

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mic4126

Manufacturer Part Number
mic4126
Description
Mic4126, Mic4127, Mic4128 - Dual 1.5a-peak Low-side Mosfet Drivers In Advanced Packaging
Manufacturer
Micrel Semiconductor
Datasheet

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Part Number:
mic4126YME
Manufacturer:
MICREL
Quantity:
4
General Description
The MIC4126, MIC4127, and MIC4128 family are highly-
reliable dual 1.5A low-side MOSFET drivers fabricated on
Micrel’s BiCMOS/DMOS process. The devices feature low
power
MIC4126/27/28 translate TTL or CMOS input logic levels to
output voltage levels that swing within 25mV of the positive
supply or ground whereas comparable bipolar devices are
capable of swinging only to within 1V of the supply. The
MIC4126/7/8 is available in three configurations: dual
inverting, dual non-inverting, and complimentary output.
The MIC4126/27/28 offer pin-compatible as well as smaller
footprint
improved packaging and electrical performance. The
MIC4126/27/28 are available in exposed pad, EPAD,
SOIC-8L and MSOP-8L options as well as a small-size
3mm x 3mm MLF™-8L option. The devices have an input
operating range of 4.5V to 20V.
Primarily
MIC4426/7/8 drivers are suitable for driving other loads
(capacitive, resistive, or inductive) which require low-
impedance, high peak current, and fast switching time. The
devices can withstand up to 500mA of reverse current
(either polarity) without latching and up to 5V noise spikes
(either polarity) on ground pins.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Functional Diagram
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc, Inc.
July 2005
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • http://www.micrel.com
consumption
replacements
intended
for
and
for
driving
the
high
MIC4426/27/28
power
efficiency.
MOSFETs,
MIC4126/27/28 Block Diagram
with
The
Features
• Dual 1.5A-peak drivers
• 4.5V to 20V operating range
• Exposed backside pad packaging reduces heat
• Bipolar/CMOS/DMOS construction
• Latch-up protection to >200mA reverse current
• Switches 1000pF in 25ns
• Logic-input threshold independent of supply voltage
• Logic-input protection to –5V
• 6pF typical equivalent input capacitance
• Dual inverting, dual non-inverting, and complementary
• -40°C to +125°C operating junction temperature range
Applications
• DC/DC converters
• Motor drivers
• Clock line driver
configurations
– ePAD SOIC-8L (θ
– ePAD MSOP-8L (θ
– 3mm x 3mm MLF™-8L (θ
– 25mV maximum output offset from supply or ground
Dual 1.5A-Peak Low-Side MOSFET
Drivers in Advanced Packaging
MIC4126/27/28
JA
JA
= 58°C/W)
= 60°C/W)
JA
= 60°C/W)
(408) 955-1690
M9999-072605

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mic4126 Summary of contents

Page 1

... Micrel’s BiCMOS/DMOS process. The devices feature low power consumption and MIC4126/27/28 translate TTL or CMOS input logic levels to output voltage levels that swing within 25mV of the positive supply or ground whereas comparable bipolar devices are capable of swinging only to within 1V of the supply. The MIC4126/7/8 is available in three configurations: dual inverting, dual non-inverting, and complimentary output ...

Page 2

... Control Input A: TTL/CMOS compatible logic input Ground Control Input B: TTL/CMOS compatible logic input. Output B: CMOS totem-pole output. Supply Input: +4.5V to +20V Output A: CMOS totem-pole output. Ground, backside pad. 2 MIC4126/27/28 (1) Junction Temp. Range Lead Finish –40° to +125°C Pb-Free –40° to +125°C Pb-Free – ...

Page 3

... MLF™ θ ................................................. JA EPAD MSOP-8L θ ............................... 60°C/W JA EPAD SOIC-8L θ ................................. 58°C/W JA Min Typ 2.4 1.4 2.4 1.6 1.1 1.3 –1 V –0.025 1.5 >200 1.4 1.5 0.18 0.19 MIC4126/27/28 60°C/W Max Units V 0.8 V 0.8 µ 0.025 10 Ω 4 0.4 mA 0.6 M9999-072605 ...

Page 4

... Micrel Test Circuit Figure 1a. Inverting Configuration Figure 1b. Inverting Timing July 2005 Figure 2a. Non-inverting Configuration Figure 2b. Non-inverting Timing 4 MIC4126/27/28 M9999-072605 (408) 955-1690 ...

Page 5

... Micrel Typical Characteristics July 2005 5 MIC4126/27/28 M9999-072605 (408) 955-1690 ...

Page 6

... MLC capacitors normally provides adequate bypassing. Grounding When using the inverting drivers in the MIC4126 or MIC4128, individual ground returns for the input and output circuits or a ground plane are recommended for optimum switching speed. The voltage drop that occurs between the driver’ ...

Page 7

... Micrel Package Information July 2005 8-Pin Exposed Pad SOIC (M) 8-Pin Exposed Pad MSOP (MM) 7 MIC4126/27/28 M9999-072605 (408) 955-1690 ...

Page 8

... Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any July 2005 8-Pin MLF (ML) damages resulting from such use or sale. © 2004 Micrel, Incorporated. 8 MIC4126/27/28 M9999-072605 (408) 955-1690 ...

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