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參數(shù)資料
| 型號(hào)： | MC34152P |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 功率晶體管 |
| 英文描述： | Single Output LDO, 250mA, Fixed(3.3V), Low Noise, Fast Transient Response 8-SOIC -40 to 85 |
| 中文描述： | 1.5 A 2 CHANNEL, BUF OR INV BASED MOSFET DRIVER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 151K |
| 代理商： | MC34152P |
MC34152, MC33152, NCV33152
http://onsemi.com
8
LAYOUT CONSIDERATIONS
High frequency printed circuit layout techniques are
imperative to prevent excessive output ringing and
overshoot.
Do not attempt to construct the driver circuit
on wirewrap or plugin prototype boards.
When
driving large capacitive loads, the printed circuit board
must contain a low inductance ground plane to minimize
the voltage spikes induced by the high ground ripple
currents. All high current loops should be kept as short as
possible using heavy copper runs to provide a low
impedance high frequency path. For optimum drive
performance, it is recommended that the initial circuit
design contains dual power supply bypass capacitors
connected with short leads as close to the V
CC
pin and
ground as the layout will permit. Suggested capacitors are
a low inductance 0.1 F ceramic in parallel with a 4.7 F
tantalum. Additional bypass capacitors may be required
depending upon Drive Output loading and circuit layout.
Proper printed circuit board layout is extremely
critical and cannot be over emphasized.
Figure 19. Enhanced System Performance with
Common Switching Regulators
Figure 20. MOSFET Parasitic Oscillations
The MC34152 greatly enhances the drive capabilities of common switching
regulators and CMOS/TTL logic devices.
Series gate resistor R
g
may be needed to damp high frequency parasitic oscillations
caused by the MOSFET input capacitance and any series wiring inductance in the
gatesource circuit. R
g
will decrease the MOSFET switching speed. Schottky diode
D
1
can reduce the driver’s power dissipation due to excessive ringing, by preventing
the output pin from being driven below ground.
+
V
in
R
g
D
1
1N5819
1
TL494
or
TL594
V
CC
47
0.1
6
5.7V
2
4
3
1
1
7
5
V
in
Figure 21. Direct Transformer Drive
Figure 22. Isolated MOSFET Drive
Output Schottky diodes are recommended when driving inductive loads at high
frequencies. The diodes reduce the driver’s power dissipation by preventing the
output pins from being driven above V
CC
and below ground.
3
5
7
4 X
1N5819
1
1
Isolation
Boundary
1N
5819
3
1
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| MC34152D | Single Output LDO, 250mA, Fixed(3.3V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC34152PG | 功能描述:功率驅(qū)動(dòng)器IC 1.5A High Speed Dual Non-Inverting MOSFET RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類(lèi)型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC34156 | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:28-CHANNEL LNKJET DRIVER |
| MC34156FN | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:28-CHANNEL INKJET DRIVER (SMARTMOS Technology) |
| MC3415A | 制造商:SHENZHENFREESCALE 制造商全稱(chēng):ShenZhen FreesCale Electronics. Co., Ltd 功能描述:P-Channel 20-V (D-S) MOSFET Fast switching speed |
| MC34160 | 制造商:ON Semiconductor 功能描述: |
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