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零件编号 | MC33151 | ||
描述 | (MC34151 / MC33151) HIGH SPEED DUAL MOSFET DRIVERS | ||
制造商 | Motorola Semiconductors | ||
LOGO | |||
1 Page
High Speed Dual
MOSFET Drivers
The MC34151/MC33151 are dual inverting high speed drivers specifically
designed for applications that require low current digital circuitry to drive
large capacitive loads with high slew rates. These devices feature low input
current making them CMOS and LSTTL logic compatible, input hysteresis for
fast output switching that is independent of input transition time, and two high
current totem pole outputs ideally suited for driving power MOSFETs. Also
included is an undervoltage lockout with hysteresis to prevent erratic system
operation at low supply voltages.
Typical applications include switching power supplies, dc to dc
converters, capacitor charge pump voltage doublers/inverters, and motor
controllers.
These devices are available in dual–in–line and surface mount packages.
• Two Independent Channels with 1.5 A Totem Pole Output
• Output Rise and Fall Times of 15 ns with 1000 pF Load
• CMOS/LSTTL Compatible Inputs with Hysteresis
• Undervoltage Lockout with Hysteresis
• Low Standby Current
• Efficient High Frequency Operation
• Enhanced System Performance with Common Switching Regulator
Control ICs
• Pin Out Equivalent to DS0026 and MMH0026
Order this document by MC34151/D
MC34151
MC33151
HIGH SPEED
DUAL MOSFET DRIVERS
SEMICONDUCTOR
TECHNICAL DATA
8
1
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Representative Block Diagram
VCC 6
Logic Input A
2
+
+
+
+
–
5.7V
+
Drive Output A
7
PIN CONNECTIONS
N.C. 1
Logic Input A 2
Gnd 3
Logic Input B 4
8 N.C.
7 Drive Output A
6 VCC
5 Drive Output B
(Top View)
Logic Input B
4
+
+
Drive Output B
5
Gnd 3
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC34151D
MC34151P
TA = 0° to +70°C
SO–8
Plastic DIP
MC33151D
TA = – 40° to +85°C
MC33151P
SO–8
Plastic DIP
© Motorola, Inc. 1996
Rev 0
1
MC34151 MC33151
Figure 22. Controlled MOSFET Drive
Figure 23. Bipolar Transistor Drive
Vin
+
Rg(on)
Rg(off)
IB
+
0
–
+
Vin
Base Charge
Removal
C1
In noise sensitive applications, both conducted and radiated EMI can
be reduced significantly by controlling the MOSFET’s turn–on and
turn–off times.
The totem–pole outputs can furnish negative base current for enhanced
transistor turn–off, with the addition of capacitor C1.
330pF
Figure 24. Dual Charge Pump Converter
VCC = 15 V
4.7 0.1
+
6
+
+
+
+
–
5.7V
2
+
6.8 10
7+
1N5819
+
47
+ VO ≈ 2.0 VCC
+
4
+
6.8 10
5+
1N5819
47
+
– VO ≈ – VCC
3
10k
The capacitor’s equivalent series resistance limits the Drive Output Current
to 1.5 A. An additional series resistor may be required when using tantalum
or other low ESR capacitors.
8
Output Load Regulation
IO (mA)
0
1.0
10
20
30
50
+VO (V)
27.7
27.4
26.4
25.5
24.6
22.6
–VO (V)
–13.3
–12.9
–11.9
–11.2
–10.5
–9.4
MOTOROLA ANALOG IC DEVICE DATA
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页数 | 10 页 | ||
下载 | [ MC33151.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
MC33151 | HIGH SPEED DUAL MOSFET DRIVERS | Motorola Semiconductors |
MC33151 | (MC34151 / MC33151) HIGH SPEED DUAL MOSFET DRIVERS | Motorola Semiconductors |
MC33151 | (MC34151 / MC33151) High Speed Dual MOSFET Drivers | ON Semiconductor |
MC33152 | HIGH SPEED DUAL MOSFET DRIVERS | Motorola Semiconductors |
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