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34063AP1 の電気的特性と機能

34063AP1のメーカーはMotorola Semiconductorsです、この部品の機能は「MC34063A」です。


製品の詳細 ( Datasheet PDF )

部品番号 34063AP1
部品説明 MC34063A
メーカ Motorola Semiconductors
ロゴ Motorola Semiconductors ロゴ 




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34063AP1 Datasheet, 34063AP1 PDF,ピン配置, 機能
DC-to-DC Converter
Control Circuits
The MC34063A Series is a monolithic control circuit containing the
primary functions required for DC–to–DC converters. These devices consist
of an internal temperature compensated reference, comparator, controlled
duty cycle oscillator with an active current limit circuit, driver and high current
output switch. This series was specifically designed to be incorporated in
www.DataSheet4SUt.ecpomDown and Step–Up and Voltage–Inverting applications with a
minimum number of external components. Refer to Application Notes
AN920A/D and AN954/D for additional design information.
Operation from 3.0 V to 40 V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5 A
Output Voltage Adjustable
Frequency Operation to 100 kHz
Precision 2% Reference
Order this document by MC34063A/D
MC34063A
MC33063A
DC–to–DC CONVERTER
CONTROL CIRCUITS
SEMICONDUCTOR
TECHNICAL DATA
8
1
P, P1 SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Representative Schematic Diagram
Drive 8
Collector
Ipk 7
Sense
6
VCC
Comparator 5
Inverting
Input
S Q Q2
R
100
Q1
Ipk
Oscillator
CT
Comparator
+ 1.25 V
Reference
Regulator
1
Switch
Collector
2 Switch
Emitter
3 Timing
Capacitor
4
Gnd
(Bottom View)
This device contains 51 active transistors.
MOTOROLA ANALOG IC DEVICE DATA
PIN CONNECTIONS
Switch
Collector
Switch
Emitter
1
2
Timing 3
Capacitor
Gnd 4
8
Driver
Collector
7 Ipk Sense
(Top View)
6 VCC
Comparator
5 Inverting
Input
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC33063AD
SO–8
TA = – 40° to +85°C
MC33063AP1
Plastic DIP
MC33063AVD
SO–8
TA = –40° to +125°C
MC33063AVP
Plastic DIP
MC34063AD
MC34063AP1
TA = 0° to +70°C
SO–8
Plastic DIP
© Motorola, Inc. 1996
Rev 5
1

1 Page





34063AP1 pdf, ピン配列
MC34063A MC33063A
ELECTRICAL CHARACTERISTICS (continued) (VCC = 5.0 V, TA = Tlow to Thigh [Note 3], unless otherwise specified.)
Characteristics
Symbol
Min Typ Max
Unit
COMPARATOR
Threshold Voltage
TA = 25°C
TA = Tlow to Thigh
Threshold Voltage Line Regulation (VCC = 3.0 V to 40 V)
MC33063A, MC34063A
MC33363AV
Vth
Regline
1.225 1.25 1.275
1.21 – 1.29
– 1.4 5.0
– 1.4 6.0
V
mV
Input Bias Current (Vin = 0 V)
IIB
– 20 – 400
nA
TOTAL DEVICE
Supply Current (VCC = 5.0 V to 40 V, CT = 1.0 nF, Pin 7 = VCC,
VPin 5 > Vth, Pin 2 = Gnd, remaining pins open)
ICC – – 4.0 mA
NOTES: 3. Tlow = 0°C for MC34063A, – 40°C for MC33063A, AV
Thigh = +70°C for MC34063A, + 85°C for MC33063A, +125°C for MC33063AV
www.DataSheet4U.com 4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
5. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents (300 mA) and high driver currents (30 mA),
it may take up to 2.0 µs for it to come out of saturation. This condition will shorten the off time at frequencies 30 kHz, and is magnified at high
temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non–Darlington
configuration is used, the following output drive condition is recommended:
wIC output
Forced b of output switch : IC driver – 7.0 mA *
10
*The 100 resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
Figure 1. Output Switch On–Off Time versus
Oscillator Timing Capacitor
1000
500 VCC = 5.0 V
200
Pin 7 = VCC
Pin 5 = Gnd
100 TA = 25°C
50
ton
20
10
5.0 toff
2.0
1.0
0.01 0.02 0.05 0.1 0.2
0.5 1.0 2.0
CT, OSCILLATOR TIMING CAPACITOR (nF)
5.0 10
Figure 2. Timing Capacitor Waveform
VCC = 5.0 V
Pin 7 = VCC
Pin 2 = Gnd
Pins 1, 5, 8 = Open
CT = 1.0 nF
TA = 25°C
10 µs/DIV
MOTOROLA ANALOG IC DEVICE DATA
3


3Pages


34063AP1 電子部品, 半導体
MC34063A MC33063A
Figure 9. Step–Down Converter
www.DataSheet4U.com
81
S Q Q2
R Q1
7
Rsc
0.33
Vin
25 V
100
6
+
5
Ipk
Osc
CT
VCC
+
Comp.
1.25 V
Ref
Reg
2
1N5819
3
CT L
220 µH
470
pF
4
R1 1.2 k
R2
3.6 k
Vout
5.0 V/500 mA
+
470 CO
1.0 µH
Vout
+
100
Optional Filter
Test
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple With Optional Filter
Conditions
Vin = 15 V to 25 V, IO = 500 mA
Vin = 25 V, IO = 50 mA to 500 mA
Vin = 25 V, IO = 500 mA
Vin = 25 V, RL = 0.1
Vin = 25 V, IO = 500 mA
Vin = 25 V, IO = 500 mA
Results
12 mV = ±0.12%
3.0 mV = ±0.03%
120 mVpp
1.1 A
83.7%
40 mVpp
Figure 10. External Current Boost Connections for IC Peak Greater than 1.5 A
10a. External NPN Switch
10b. External PNP Saturated Switch
8
7
Rsc
Vin 6
1
8
27
Vout
Rsc
Vin 6
1
Vout
2
6 MOTOROLA ANALOG IC DEVICE DATA

6 Page



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共有リンク

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34063AP1

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Motorola Semiconductors
Motorola Semiconductors


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