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MIC4125YME 参数 Datasheet PDF下载

MIC4125YME图片预览
型号: MIC4125YME
PDF下载: 下载PDF文件 查看货源
内容描述: 双路3A峰值低侧MOSFET驱动器双极/ CMOS / DMOS工艺 [Dual 3A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process]
分类和应用: 驱动器
文件页数/大小: 11 页 / 361 K
品牌: MIC [ MIC GROUP RECTIFIERS ]
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MIC4123/4124/4125
Micrel, Inc.
MIC4123/4124/4125
Dual 3A-Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS Process
General Description
The MIC4123/4124/4125 family are highly reliable BiC-
MOS/DMOS buffer/driver/MOSFET drivers. They are higher
output current versions of the MIC4126/4127/4128, which
are improved versions of the MIC4426/4427/4428. All three
families are pin-compatible. The MIC4123/4124/4125 driv-
ers are capable of giving reliable service in more demanding
electrical environments than their predecessors. They will
not latch under any conditions within their power and voltage
ratings. They can survive up to 5V of noise spiking, of either
polarity, on the ground pin. They can accept, without either
damage or logic upset, up to half an amp of reverse current
(either polarity) forced back into their outputs.
The MIC4123/4124/4125 series drivers are easier to use, more
flexible in operation, and more forgiving than other CMOS
or bipolar drivers currently available. Their BiCMOS/DMOS
construction dissipates minimum power and provides rail-to-
rail voltage swings.
Primarily intended for driving power MOSFETs, the
MIC4123/4124/4125 drivers are suitable for driving other loads
(capacitive, resistive, or inductive) which require low-imped-
ance, high peak currents, and fast switching times. Heavily
loaded clock lines, coaxial cables, or piezoelectric transducers
are some examples. The only known limitation on loading is
that total power dissipated in the driver must be kept within
the maximum power dissipation limits of the package.
Features
Reliable, low-power bipolar/CMOS/DMOS construction
Latch-up protected to >200mA reverse current
Logic input withstands swing to –5V
High 3A-peak output current
Wide 4.5V to 20V operating range
Drives 1800pF capacitance in 25ns
Short <50ns typical delay time
Delay times consistent with in supply voltage change
Matched rise and fall times
TTL logic input independent of supply voltage
Low equivalent 6pF input capacitance
Low supply current
3.5mA with logic-1 input
350µA with logic-0 input
Low 2.3Ω typical output impedance
Output voltage swings within 25mV of ground or V
S
.
‘426/7/8-, ‘1426/7/8-, ‘4426/7/8-compatible pinout
Inverting, noninverting, and differential configurations
Exposed backside pad packaging reduces heat
ePAD SOIC-8L (θ
JA
= 58°C/W)
4mm x 4mm MLF™-8L (θ
JA
= 45°C/W)
Functional Diagram
V
S
0.6mA
0.1mA
INV ERT ING
Integrated Component Count:
4 Resistors
4 Capacitors
52 Transistors
OUTA
INA
2kΩ
NONINV ERTING
0.6mA
0.1mA
INV ERT ING
OU TB
INB
2kΩ
NONINV ERTING
GND
Ground Unused Inputs
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
May 2005
1
M9999-052405