参数资料
型号: MIC5018YM4 TR
厂商: Micrel Inc
文件页数: 1/8页
文件大小: 0K
描述: IC DRIVER MOSFET HI SIDE SOT143
标准包装: 1
系列: IttyBitty®
配置: 高端
输入类型: 非反相
延迟时间: 750µs
配置数: 1
输出数: 1
电源电压: 2.7 V ~ 9 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: TO-253-4,TO-253AA
供应商设备封装: SOT-143
包装: 标准包装
产品目录页面: 1110 (CN2011-ZH PDF)
其它名称: 576-1238-6
MIC5018
IttyBitty ? High-Side MOSFET Driver
General Description
Features
The MIC5018 IttyBitty? high-side MOSFET driver is
designed to switch an N-channel enhancement-type
MOSFET from a TTL compatible control signal in high- or
low-side switch applications. This driver features the tiny
4-lead SOT-143 package.
The MIC5018 is powered from a +2.7V to +9V supply
and features extremely low off-state supply current.
An internal charge pump drives the gate output higher
than the driver supply voltage and can sustain the gate
voltage indefinitely. An internal zener diode limits the
gate-to-source voltage to a safe level for standard
?
?
?
?
?
?
?
?
+2.7V to +9V operation
150μA typical supply current at 5V supply
≤ 1μA typical standby (off) current
Charge pump for high-side low-voltage applications
Internal zener diode gate-to-ground MOSFET protection
Operates in low- and high-side configurations
TTL compatible input
ESD protected
N-channel MOSFETs.
Applications
V L O AD SU PPL Y
In high-side configurations, the source voltage of the
MOSFET approaches the supply voltage when switched
on. To keep the MOSFET turned on, the MIC5018’s output
drives the MOSFET gate voltage higher than the supply
voltage. In a typical high-side configuration, the driver is
powered from the load supply voltage. Under some
conditions, the MIC5018 and MOSFET can switch a load
voltage that is slightly higher than the driver supply
voltage.
In a low-side configuration, the driver can control a
MOSFET that switches any voltage up to the rating of the
MOSFET. The gate output voltage is higher than the
typical 3.3V or 5V logic supply and can fully enhance a
standard MOSFET.
The MIC5018 is available in the SOT-143 package and is
rated for –40°C to +85°C ambient temperature range.
Typical Applications
+5V
?
?
?
?
Battery conservation
Power bus switching
Solenoid and motion control
Lamp control
?
Load voltage limited only by
MOSFET drain-to-source rating
?
VS
G
C T L GND
4.7 μ F
VS
G
C T L GND
4.7 μ F
On
Off
MIC5018
2
4
* International Rectifier
100m , 17A max.
TO-220 package
3
1
IRFZ24*
N-Channel
MO S F E T
* Siliconix
30m , 7A max., 30V V DS max.
8-lead SOIC package
+2.7 to +9V
MIC5018
2
4
On
Off
3
1
Si9410DY*
N-channel
MO S F E T
Low-Voltage High-Side Power Switch
Low-Side Power Switch
IttyBitty is a trademark of Micrel, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
April 2006
M9999-042406
(408) 955-1690
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