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MIC4422YN

P1-P3P4-P6P7-P9P10-P12
MIC4421/4422 Micrel, Inc.
August 2005 1 M9999-081005
MIC4421/4422
9A-Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS Process
General Description
MIC4421 and MIC4422 MOSFET drivers are rugged, ef-
ficient, and easy to use. The MIC4421 is an inverting driver,
while the MIC4422 is a non-inverting driver.
Both versions are capable of 9A (peak) output and can drive
the largest MOSFETs with an improved safe operating mar-
gin. The MIC4421/4422 accepts any logic input from 2.4V to
V
S
without external speed-up capacitors or resistor networks.
Proprietary circuits allow the input to swing negative by as
much as 5V without damaging the part. Additional circuits
protect against damage from electrostatic discharge.
MIC4421/4422 drivers can replace three or more discrete
components, reducing PCB area requirements, simplifying
product design, and reducing assembly cost.
Modern Bipolar/CMOS/DMOS construction guarantees
freedom from latch-up. The rail-to-rail swing capability of
CMOS/DMOS insures adequate gate voltage to the MOS-
FET during power up/down sequencing. Since these devices
are fabricated on a self-aligned process, they have very low
crossover current, run cool, use little power, and are easy
to drive.
Features
• BiCMOS/DMOS Construction
• Latch-Up Proof: Fully Isolated Process is Inherently
Immune to Any Latch-up.
• Input Will Withstand Negative Swing of Up to 5V
• Matched Rise and Fall Times ............................... 25ns
• High Peak Output Current ...............................9A Peak
• Wide Operating Range .............................. 4.5V to 18V
• High Capacitive Load Drive ........................... 47,000pF
• Low Delay Time .............................................30ns Typ.
• Logic High Input for Any Voltage from 2.4V to V
S
• Low Equivalent Input Capacitance (typ) ................. 7pF
• Low Supply Current .............. 450µA With Logic 1 Input
• Low Output Impedance .........................................1.5Ω
• Output Voltage Swing to Within 25mV of GND or V
S
Applications
• Switch Mode Power Supplies
• Motor Controls
• Pulse Transformer Driver
• Class-D Switching Amplifiers
• Line Drivers
• Driving MOSFET or IGBT Parallel Chip Modules
• Local Power ON/OFF Switch
• Pulse Generators
Functional Diagram
IN
OUT
MIC4421
IN V ER T I NG
MIC4422
NONINVERTING
0.1mA
0.3m
A
2k
Ω
V
S
GND
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
MIC4421/4422 Micrel, Inc.
M9999-081005 2 August 2005
Ordering Information
Part Number
Standard PbFree Configuration Temp. Range Package
MIC4421BM MIC4421YM Inverting –40ºC to +85ºC 8-pin SOIC
MIC4421BN MIC4421YN Inverting –40ºC to +85ºC 8-pin DIP
MIC4421CM MIC4421ZM Inverting –0ºC to +70ºC 8-pin SOIC
MIC4421CN MIC4421ZN Inverting –0ºC to +70ºC 8-pin DIP
MIC4421CT MIC4421ZT Inverting –0ºC to +70ºC 5-pin TO-220
MIC4422BM MIC4422YM Non-inverting –40ºC to +85ºC 8-pin SOIC
MIC4422BN MIC4422YN Non-inverting –40ºC to +85ºC 8-pin DIP
MIC4422CM MIC4422ZM Non-inverting –0ºC to +70ºC 8-pin SOIC
MIC4422CN MIC4422ZN Non-inverting –0ºC to +70ºC 8-pin DIP
MIC4422CT MIC4422ZT Non-inverting –0ºC to +70ºC 5-pin TO-220
Pin Configurations
1
2
3
4
8
7
6
5
V S
OUT
OUT
GND
V S
IN
NC
GND
Plastic DIP (N)
SOIC (M)
5 OUT
4 GND
3 V
S
2 GND
1 I
N
TO-220-5 (T)
Pin Description
Pin Number Pin Number Pin Name Pin Function
TO-220-5 DIP, SOIC
1 2 IN Control Input
2, 4 4, 5 GND Ground: Duplicate pins must be externally connected together.
3,
TAB 1, 8 V
S
Supply Input: Duplicate pins must be externally connected together.
5 6, 7 OUT Output: Duplicate pins must be externally connected together.
3 NC Not connected.
MIC4421/4422 Micrel, Inc.
August 2005 3 M9999-081005
Electrical Characteristics: (T
A
= 25°C with 4.5 V ≤ V
S
≤ 18 V unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Units
INPUT
V
IH
Logic 1 Input Voltage 2.4 1.3 V
V
IL
Logic 0 Input Voltage 1.1 0.8 V
V
IN
Input Voltage Range –5 V
S
+0.3 V
I
IN
Input Current 0 V ≤ V
IN
≤ V
S
–10 10 µA
OUTPUT
V
OH
High Output Voltage See Figure 1 V
S
–.025 V
V
OL
Low Output Voltage See Figure 1 0.025 V
R
O
Output Resistance, I
OUT
= 10 mA, V
S
= 18 V 0.6 Ω
Output High
R
O
Output Resistance, I
OUT
= 10 mA, V
S
= 18 V 0.8 1.7 Ω
Output Low
I
PK
Peak Output Current V
S
= 18 V (See Figure 6) 9 A
I
DC
Continuous Output Current 2 A
I
R
Latch-Up Protection Duty Cycle ≤ 2% >1500 mA
Withstand Reverse Current t ≤ 300 µs
SWITCHING TIME (Note 3)
t
R
Rise Time Test Figure 1, C
L
= 10,000 pF 20 75 ns
t
F
Fall Time Test Figure 1, C
L
= 10,000 pF 24 75 ns
t
D1
Delay Time Test Figure 1 15 60 ns
t
D2
Delay Time Test Figure 1 35 60 ns
POWER SUPPLY
I
S
Power Supply Current V
IN
= 3 V 0.4 1.5 mA
V
IN
= 0 V 80 150 µA
V
S
Operating Input Voltage 4.5 18 V
Operating Ratings
Junction Temperature ................................................ 150°C
Ambient Temperature
C Version ....................................................
0°C to +70°C
B Version ................................................
–40°C to +85°C
Thermal Resistance
5-Pin TO-220
(θ
JC
) ............................................... 10°C/W
Absolute Maximum Ratings (Notes 1, 2 and 3)
Supply Voltage .............................................................. 20V
Input Voltage ...................................
V
S
+ 0.3V to GND – 5V
Input Current (V
IN
> V
S
) .............................................. 50 mA
Power Dissipation, T
A
≤ 25°C
PDIP ....................................................................
960mW
SOIC ..................................................................
1040mW
5-Pin TO-220 ..............................................................
2W
Power Dissipation, T
CASE
≤ 25°C
5-Pin TO-220 .........................................................
12.5W
Derating Factors (to Ambient)
PDIP ................................................................
7.7mW/°C
SOIC ................................................................
8.3mW/°C
5-Pin TO-220 ....................................................
17mW/°C
Storage Temperature ................................
–65°C to +150°C
Lead Temperature (10 sec) .......................................
300°C
P1-P3P4-P6P7-P9P10-P12

MIC4422YN

Mfr. #:
Buy MIC4422YN
Manufacturer:
Microchip Technology / Micrel
Description:
Gate Drivers High Speed, 9A Low Side MOSFET Driver
Lifecycle:
New from this manufacturer.
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