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| 型号： | MIC5013YN |
| 厂商： | Micrel Inc |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER MOSFET HI/LO SIDE 8DIP |
| 标准包装： | 50 |
| 配置： | 高端或低端 |
| 输入类型： | 非反相 |
| 延迟时间： | 60µs |
| 配置数： | 1 |
| 输出数： | 1 |
| 电源电压： | 7 V ~ 32 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： | 576-1232 |
MIC5013
Applications Information (Continued)
Since the supply current in the “OFF” state is only a small
leakage, the 100nF bypass capacitor tends to remain
charged for several seconds after the MIC5013 is turned
off. In a PWM application the chip supply is actually much
higher than the system supply, which improves switching
time.
Electronic Circuit Breaker (Figure 7). The MIC5013 forms
the basis of a high-performance, fast-acting circuit breaker.
By adding feedback from FAULT to INPUT the breaker can
be made to automatically reset. If an over-current condition
occurs, the circuit breaker shuts off. The breaker tests the
load every 18ms until the short is removed, at which time
the circuit latches ON. No reset button is necessary.
Opto-Isolated Interface (Figure 8). Although the MIC5013
has no special input slew rate requirement, the lethargic
transitions provided by an opto-isolator may cause oscil-
lations on the rise and fall of the output. The circuit shown
accelerates the input transitions from a 4N35 opto-isolator
by adding hysteresis. Opto-isolators are used where the
control circuitry cannot share a common ground with the
MIC5013 and high-current power supply, or where the
control circuitry is located remotely. This implementation is
intrinsically safe; if the control line is severed the MIC5013
will turn OFF.
Fault-Protected Industrial Switch (Figure 9). The most
common manual control for industrial loads is a push but-
ton on/off switch. The “on” button is physically arranged in
a recess so that in a panic situation the “off” button, which
extends out from the control box, is more easily pressed.
This circuit is compatible with control boxes such as the
CR2943 series (GE). The circuit is con?gured so that if
both switches close simultaneously, the “off” button has
precedence. If there is a fault condition the circuit will latch
off, and it can be reset by pushing the “ON” button.
Micrel, Inc.
This application also illustrates how two (or more) MOS-
FETs can be paralleled. This reduces the switch drop, and
distributes the switch dissipation into multiple packages.
High-Voltage Bootstrap (Figure 10). Although the MIC5013
is limited to operation on 7 to 32V supplies, a ?oating boot-
strap arrangement can be used to build a high-side switch
that operates on much higher voltages. The MIC5013 and
MOSFET are con?gured as a low-side driver, but the load is
connected in series with ground. The high speed normally
associated with low-side drivers is retained in this circuit.
Power for the MIC5013 is supplied by a charge pump. A
20kHz square wave (15Vp-p) drives the pump capacitor
and delivers current to a 100μF storage capacitor. A zener
diode limits the supply to 18V. When the MIC5013 is off,
power is supplied by a diode connected to a 15V supply. The
circuit of Figure 8 is put to good use as a barrier between
low voltage control circuitry and the 90V motor supply.
Half-Bridge Motor Driver (Figure 11). Closed loop control
of motor speed requires a half-bridge driver. This topology
presents an extra challenge since the two output devices
should not cross conduct (shoot-through) when switching.
Cross conduction increases output device power dissipation
and, in the case of the MIC5013, could trip the over-current
comparator. Speed is also important, since PWM control
requires the outputs to switch in the 2 to 20kHz range.
The circuit of Figure 11 utilizes fast con?gurations for both
the top- and bottom-side drivers. Delay networks at each
input provide a 2 to 3μs dead time effectively eliminating
cross conduction. Both the top- and bottom-side drivers
are protected, so the output can be shorted to either rail
without damage.
15V
+
10mA
1N4003 (2)
100k?
4N35
Control Input
33pF
100k?
33k ?
MPSA05
6.2k?
MIC5013
1 Input Fault 8
2 Thresh V+ 7
3 Sense Gate 6
4 Source Gnd 5
100μF
1N4746
90V
IRFP250
5BPB56HAA100 M
100nF
200V
15Vp-p, 20kHz
Squarewave
1N4003
1k ?
Figure 10. High-Voltage
Bootstrapped Driver
1/4 HP, 90V
( GE )
10m ?
KC1000-4T
(Kelvin)
July 2005
11
MIC5013
相关PDF资料 |
PDF描述 |
|---|---|
| MIC5014YN | IC DRIVER MOSFET HI/LO SIDE 8DIP |
| MIC5016BWM | IC DRIVER MOSF DUAL HI/LO 16SOIC |
| MIC5018YM4 TR | IC DRIVER MOSFET HI SIDE SOT143 |
| MIC5020YM | IC DRIVER MOSF LO SIDE HS 8-SOIC |
| MIC5021YN | IC DRIVER MOSFET HI SIDE HS 8DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC5014 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low-Cost High- or Low-Side MOSFET Driver |
| MIC5014_05 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low-Cost High- or Low-Side MOSFET Driver |
| MIC5014-1 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low-Cost High- or Low-Side MOSFET Driver Final Information |
| MIC5014BM | 功能描述:IC DRIVER MOSF HI/LO SIDE 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°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-DIP 包装:管件 其它名称:*IR2127 |
| MIC5014BM TR | 功能描述:IC DRIVER MOSF HI/LO SIDE 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°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-DIP 包装:管件 其它名称:*IR2127 |
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