Datasheet.kr   

MC34167 데이터시트 PDF




Motorola Semiconductors에서 제조한 전자 부품 MC34167은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 MC34167 자료 제공

부품번호 MC34167 기능
기능 POWER SWITCHING REGULATORS
제조업체 Motorola Semiconductors
로고 Motorola Semiconductors 로고


MC34167 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 16 페이지수

미리보기를 사용할 수 없습니다

MC34167 데이터시트, 핀배열, 회로
Order this document by MC34167/D
Power Switching Regulators
MC34167
MC33167
The MC34167, MC33167 series are high performance fixed frequency
power switching regulators that contain the primary functions required for
dc–to–dc converters. This series was specifically designed to be
incorporated in step–down and voltage–inverting configurations with a
minimum number of external components and can also be used cost
effectively in step–up applications.
These devices consist of an internal temperature compensated
reference, fixed frequency oscillator with on–chip timing components,
latching pulse width modulator for single pulse metering, high gain error
amplifier, and a high current output switch.
Protective features consist of cycle–by–cycle current limiting,
undervoltage lockout, and thermal shutdown. Also included is a low power
standby mode that reduces power supply current to 36 µA.
Output Switch Current in Excess of 5.0 A
Fixed Frequency Oscillator (72 kHz) with On–Chip Timing
Provides 5.05 V Output without External Resistor Divider
Precision 2% Reference
0% to 95% Output Duty Cycle
Cycle–by–Cycle Current Limiting
Undervoltage Lockout with Hysteresis
Internal Thermal Shutdown
Operation from 7.5 V to 40 V
Standby Mode Reduces Power Supply Current to 36 µA
Economical 5–Lead TO–220 Package with Two Optional Leadforms
Also Available in Surface Mount D2PAK Package
Simplified Block Diagram
(Step Down Application)
ILIMIT
Vin
4
Oscillator
PWM
Thermal
S
Q
R
UVLO
Reference
2
EA
1
35
This device contains 143 active transistors.
L
VO
5.05 V/5.0 A
POWER SWITCHING
REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
TH SUFFIX
PLASTIC PACKAGE
CASE 314A
1
5
1
5
TV SUFFIX
PLASTIC PACKAGE
CASE 314B
Heatsink surface connected to Pin 3.
T SUFFIX
PLASTIC PACKAGE
CASE 314D
1
5
Pin 1. Voltage Feedback Input
2. Switch Output
3. Ground
4. Input Voltage/VCC
5. Compensation/Standby
1
5
D2T SUFFIX
PLASTIC PACKAGE
CASE 936A
(D2PAK)
Heatsink surface (shown as terminal 6
in case outline drawing) is connected to Pin 3.
ORDERING INFORMATION
Operating
Device Temperature Range Package
MC33167D2T
Surface Mount
MC33167T
Straight Lead
MC33167TH TA = – 40° to +85°C Horiz. Mount
MC33167TV
Vertical Mount
MC34167D2T
Surface Mount
MC34167T
Straight Lead
MC34167TH TA = 0° to + 70°C Horiz. Mount
MC34167TV
Vertical Mount
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 3
1




MC34167 pdf, 반도체, 판매, 대치품
MC34167 MC33167
Figure 7. Switch Output Source Saturation
versus Source Current
0
VCC
– 0.5
TA = +25°C
–1.0
–1.5
– 2.0
– 2.5
– 3.0
0
2.0 4.0 6.0
ISource, SWITCH OUTPUT SOURCE CURRENT (A)
8.0
Figure 8. Negative Switch Output Voltage
versus Temperature
0
Gnd
– 0.2
VCC = 12 V
Pin 5 = 2.0 V
– 0.4 Pins 1, 3 = Gnd
Pin 2 Driven Negative
– 0.6
Isw = 100 µA
– 0.8 Isw = 10 mA
–1.0
–1.2
– 55
– 25
0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 9. Switch Output Current Limit
Threshold versus Temperature
7.2
VCC = 12 V
Pins 1, 2, 3 = Gnd
6.8
6.4
6.0
5.6
– 55 – 25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 10. Standby Supply Current
versus Supply Voltage
160
Pin 4 = VCC
Pins 1, 3, 5 = Gnd
Pin 2 Open
120 TA = +25°C
80
40
0
0
10 20
30 40
VCC, SUPPLY VOLTAGE (V)
Figure 11. Undervoltage Lockout
Thresholds versus Temperature
6.5
Startup Threshold
6.0 VCC Increasing
5.5
Turn–Off Threshold
5.0 VCC Decreasing
4.5
4.0
– 55
– 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
125
Figure 12. Operating Supply Current
versus Supply Voltage
50
40
30
20 Pin 4 = VCC
Pins 1, 3 = Gnd
10
Pins 2, 5 Open
TA = +25°C
0
0 10 20 30 40
VCC, SUPPLY VOLTAGE (V)
4 MOTOROLA ANALOG IC DEVICE DATA

4페이지










MC34167 전자부품, 판매, 대치품
MC34167 MC33167
Thermal Protection
Internal Thermal Shutdown circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded. When activated, typically at 170°C,
the latch is forced into a ‘reset’ state, disabling the output
switch. This feature is provided to prevent catastrophic failures
from accidental device overheating. It is not intended to be
used as a substitute for proper heatsinking. The MC34167
is contained in a 5–lead TO–220 type package. The tab of the
package is common with the center pin (Pin 3) and is normally
connected to ground.
DESIGN CONSIDERATIONS
Do not attempt to construct a converter on wire–wrap
or plug–in prototype boards. Special care should be taken
to separate ground paths from signal currents and ground
paths from load currents. All high current loops should be
kept as short as possible using heavy copper runs to
minimize ringing and radiated EMI. For best operation, a tight
component layout is recommended. Capacitors Cin, CO, and
all feedback components should be placed as close to the IC
as physically possible. It is also imperative that the Schottky
diode connected to the Switch Output be located as close to
the IC as possible.
Figure 15. Low Power Standby Circuit
+
100 µA
Error
Amp
1
120
Compensation 5
R1
I = Standby Mode
Figure 16. Over Voltage Shutdown Circuit
+
100 µA
Error
Amp
1
120
Compensation 5
R1
VShutdown = VZener + 0.7
Figure 17. Soft–Start Circuit
+
100 µA
Error
Amp
120
Compensation 5
D2
Vin
D1
1.0 M
Css
tSoft–Start 35,000 Css
1
R1
MOTOROLA ANALOG IC DEVICE DATA
7

7페이지


구       성 총 16 페이지수
다운로드[ MC34167.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
MC34160

MICROPROCESSOR VOLTAGE REGULATOR/ SUPERVISORY CIRCUIT

Motorola Semiconductors
Motorola Semiconductors
MC34160

(MC33160 / MC34160) Voltage Regulator and Supervisory Circuit

ON Semiconductor
ON Semiconductor

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵