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| 型号： | MIC5021YN |
| 厂商： | Micrel Inc |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER MOSFET HI SIDE HS 8DIP |
| 标准包装： | 50 |
| 配置： | 高端 |
| 输入类型： | 非反相 |
| 延迟时间： | 500ns |
| 配置数： | 1 |
| 输出数： | 1 |
| 电源电压： | 12 V ~ 36 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 1110 (CN2011-ZH PDF) |
| 其它名称： | 576-1240 |
Standard
Pb-Free
MIC5021
General Description
The MIC5021 high-side MOSFET driver is designed to oper-
ate at frequencies up to 100kHz (5kHz PWM for 2% to 100%
duty cycle) and is an ideal choice for high speed applications
such as motor control, SMPS (switch mode power supplies),
and applications using IGBTs. The MIC5021 can also operate
as a circuit breaker with or without automatic retry.
A rising or falling edge on the input results in a current source
pulse or sink pulse on the gate output. This output current
pulse can turn on a 2000pF MOSFET in approximately 550ns.
The MIC5021 then supplies a limited current (< 2mA), if
necessary, to maintain the output state.
An overcurrent comparator with a trip voltage of 50mV makes
the MIC5021 ideal for use with a current sensing MOSFET. An
external low value resistor may be used instead of a sensing
MOSFET for more precise overcurrent control. An optional
external capacitor placed from the C T pin to ground may be
used to control the current shutdown duty cycle (dead time)
from 20% to < 1%. A duty cycle from 20% to about 75% is
possible with an optional pull-up resistor from C T to V DD .
The MIC5021 is available in 8-pin SOIC and plastic DIP
packages.
Other members of the MIC502x family include the MIC5020
low-side driver and the MIC5022 half-bridge driver with a
cross-conduction interlock.
Micrel, Inc.
MIC5021
High-Speed High-Side MOSFET Driver
Features
? 12V to 36V operation
? 550ns rise/fall time driving 2000pF
? TTL compatible input with internal pull-down resistor
? Overcurrent limit
? Gate to source protection
? Internal charge pump
? 100kHz operation guaranteed over full temperature and
operating voltage range
? Compatible with current sensing MOSFETs
? Current source drive reduces EMI
Applications
? Lamp control
? Heater control
? Motor control
? Solenoid switching
? Switch-mode power supplies
? Circuit breaker
Ordering Information
Part Number Temperature
Range Package
MIC5021BM MIC5021YM –40oC to +85oC 8-pin SOIC
MIC5021BN MIC5021YN –40oC to +85oC 8-pin Plastic DIP
Typical Application
+12V to +36V
10μF
TTL Input
optional*
1
2
3
4
MIC5021
V DD V B OOS T
Input Gate
C T Sense-
Gnd Sense+
8
7
6
5
2.7
nF
N-Channel
Power MOSFET
R S E N S E
R S E N S E
=
50mV
I TR IP
Load
* increases time before retry
High-Side Driver with Overcurrent Trip and Retry
Micrel, Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
July 2005
1
MIC5021
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5021YN | 制造商:Micrel Inc 功能描述:Temperature Sensor IC |
| MIC5022 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Half-Bridge MOSFET Driver |
| MIC5022_05 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Half-Bridge MOSFET Driver |
| MIC5022BN | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Half-Bridge MOSFET Driver |
| MIC5022BWM | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Half-Bridge MOSFET Driver |
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