PQ1CZ38M2ZSERIES [ETC]
CHOPPER REGULATOR ; 斩波稳压器\n型号: | PQ1CZ38M2ZSERIES |
厂家: | ETC |
描述: | CHOPPER REGULATOR
|
文件: | 总6页 (文件大小:89K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Chopper Regulators
PQ1CZ38M2Z
PQ1CZ38M2Z
Chopper Regulator built-in 300kHz oscillation circuit
(Unit : mm)
Features
Outline Dimensions
ꢀ
ꢀ
ꢁ
Maximum switching current: 0.8A
ꢁ
ꢁ
Built-in ON/OFF control function
Built-in soft start function to suppress overshoot of output
voltage in power on sequence or ON/OFF control sequence
Built-in oscillation circuit
(Oscillation frequency: TYP. 300kHz)
Built-in overheat, overcurrent protection functions
SC-63 package
( ) : Typical dimensions
0.5
6.6MAX.
ꢁ
2.3
0.5
(0.5)
5.2
3
ꢁ
ꢁ
ꢁ
Epoxy resin
(0 to 0.25)
1CZ38M
Variable output voltage
(Output variable range: VREF to 35V/-VREF to -30V)
[Possible to select step-down output/inversing output
according to external connection circuit]
+0.2
0.5
(0.5)
-0.1
4(1.27)
Applications
Color TV
Digital OA equipment
Facsimiles, printers and other OA equipment
Personal computers and amusement equipment
ꢀ
ꢁ
1
V
IN
2
3
4
5
VOUT
1
2
3
4
5
GND (Common to heat sink)
O
ON/OFF control
ꢁ
ꢁ
ꢁ
adj
Absolute Maximum Ratings
ꢀ
(Ta=25°C)
•Please refer to the chapter " Handling Precautions ".
Parameter
Input voltage
Error input voltage
Input-output voltage
Switching current
Output-COM voltage
ON/OFF control voltage
Power dissipation
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
Symbol
Rating
40
7
41
0.8
Unit
V
V
V
A
❇1
VIN
Vadj
VI–O
I
SW
❇2
❇3
❇4
❇5
VOUT
–1
V
V
VC
–0.3 to 40
8
150
–20 to +80
–40 to +150
260 (10s)
PD
W
˚C
˚C
˚C
˚C
T
j
Topr
T
T
stg
sol
❇1 Voltage between V terminal and COM terminal
IN
OUT
❇2 Voltage between V
terminal and COM terminal
❇3 Voltage between ON/OFF control and COM terminal
❇4 In case of with infinite heat sink,please refer fig.2.
❇5 Overheat protection may operate at T =125˚C to 150˚C
j
Notice In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
Chopper Regulators
PQ1CZ38M2Z
Electrical Characteristics
ꢀ
(Unless otherwise specified, condition shall be VIN=12V, IO=0.2A, VO=5V, ON-OFF terminals is open, Ta=25˚C)
Parameter
Output saturation voltage
Reference voltage
Symbol
Conditions
ISW=0.5A
−
Tj=0 to 125˚C
IO=0.1 to 0.5A
VIN=8 to 35V
IO=0.5A
−
MIN. TYP. MAX. Unit
V
SAT
−
1.235
−
−
−
0.9
1.26
0.5
0.2
1
1.5
1.285
−
1.5
2.5
−
V
V
Vref
∆Vref
|RegL|
|RegI|
η
Reference voltage temperature fluctuation
Load regulation
%
%
Line regulation
%
Efficiency
−
80
%
fO
Oscillation frequency
270
300
3
330
kHz
Tj=0 to 125˚C
−
5
terminals is open, terminal
∆fO
IL
−
0.85
−
−
−
−
1.6
−
−
−
0.9
400
10
Oscillation frequency temperature fluctuation
Overcurrent detecting level
Charge current
%
A
1.2
−10
1.3
2.1
0.8
120
5
2
4
,
ICHG
VTHL
VTHH
VTH(ON)
ISD
µA
V
4
5
Duty ratio=0%, terminal=0V, terminal
Input threshold voltage
4
5
terminal
Duty ratio=100%, terminal=1.1V
,
V
4
5
terminal=0V, terminal
0.7
V
ON threshold voltage
5
VIN=40V, terminal=0V
−
−
µA
mA
Stand-by current
4
5
VIN=40V, terminal=0V, terminal=0.9V
IQS
Output OFF-state dissipation current
Fig.1 Test Circuit
4
L
IO
65µH
1
2
VO
PQ1CZ38M2Z
ISD
IQS
A
R2
5
+
+
Load
3
VIN
A
D
CIN
CO
R1
1kΩ
ICHG
100µF
470µF
L : HK-12S120-9000 (made by Toho Co.)
D :ERC80-004 (made by Fuji electronics Co.)
Fig.2 Power Dissipation vs. Ambient
Temperature
Fig.3 Overcurrent Protection
Characteristics (Typical Value)
6
10
PD : With infinite heat sink
T
j=25˚C
V
V
IN=12V
PD
5
4
3
2
O
=5V
5
0
1
0
0
0.5
1
1.5
2
–20
0
20
40
60
80 100
Output current IO (A)
Ambient temperature Ta (°C)
Note) Oblique line portion:Overheat protection may operate in this area
Chopper Regulators
PQ1CZ38M2Z
Fig.4 Efficiency vs. Input Voltage
Fig.5 Output Saturation Voltage vs.
Switching Current
100
1.6
Tj=25˚C
Tj=25˚C
1.4
1.2
1
V
O
=12V,I =0.5A
O
90
80
70
V
O
=12V,I
O
=0.1A
0.8
0.6
0.4
V
O
=5V,I
O
=0.5A
=5V,I
20
60
50
0.2
0
VO
O
=0.1A
0
10
30
40
50
0
0.2
0.4
0.6
0.8
1
Input voltage VIN (V)
Switching current ISW (A)
Fig.6 Stand-by Current vs. Intput Voltage
Fig.7 Reference Voltage Fluctuation vs.
Junction Temperature
2
250
V
V
IN=12V
Tj=25˚C
1.5
1
O=5V
200
150
100
0.5
0
–0.5
–1
50
0
–1.5
–2
–25
0
25
50
75 100 125
0
5
10 15 20 25 30 35 40
Intput voltage VIN (V)
Junction temperature Tj (°C)
Fig.8 Load Regulation vs. Output Current
Fig.9 Line Regulation vs. Input Voltage
1
1.5
T
V
V
j
=25˚C
T
V
j
=25˚C
=5V
=0.2A
IN=12V
O
O
=5V
I
O
1
0.5
0.5
0
0
–0.5
–0.5
0
0.1
0.2 0.3
0.4 0.5
0.6
0
10
20
30
40
Output current IO (A)
Input voltage VIN (V)
Chopper Regulators
PQ1CZ38M2Z
Fig.10 Oscillation Frequency Fluctuation vs.
Fig.11 Overcurrent Detecting Level
Junction Temperature
Fluctuation vs. Junction Temperature
10
6
4
VIN=12V
8
6
V
O=5V
2
4
2
0
0
–2
–4
–2
–4
–6
–6
–8
–8
–10
–
25
0
25
50
75
100 125
–25
0
25
50
75
100 125
Junction temperature Tj (°C)
Junction temperature Tj (°C)
Fig.12 Threshold Voltage vs. Junction
Fig.13 Operating Dissipation Current vs.
Temperature
Input Voltage
3
12
VIN=12V
T
V
j
=25˚C
=5V
O
2.5
2
10
8
VTH(H)
IO=0.5A
VTH(L)
1.5
1
6
IO=0.1A
4
0.5
0
2
0
VTH(ON)
–25
0
25
50
75
100 125
0
10
20
30
40
Junction temperature Tj (˚C)
Input voltage VIN (V)
Fig.14 Block Diagram
2
1
VOUT
VIN
Voltage
regulator
ON/OFF
circuit
5
ON/OFF control
PWM COMP.
_
+
Q
Overcurrent
detection
circuit
R
F/F
S
4
_ ERROR AMP.
Oadj
+
Vref
Overheat
detection
circuit
3
COM
Chopper Regulators
PQ1CZ38M2Z
Fig.15 Step Down Type Circuit Diagram
4
L
65µH
1
2
VO 5V
PQ1CZ38M2
5
R2
3kΩ
+
+
Load
3
VIN
RS
CS
D
CIN
CO
8 to 35V
100µF
470µF
R1
1kΩ
ON/OFF control signal
RS≤50kΩ
Fig.16 Polarity Inversion Type Circuit Diagram
4
L
65µH
1
2
PQ1CZ38M2
R2
3kΩ
5
+
+
Load
3
VIN
RS
D
CS
CO
CIN
5 to 30V
100µF
2 200µF
R1
1kΩ
VO
−5V
ON/OFF control signal
RS≤50kΩ
NOTICE
G
The circuit application examples in this publication are provided to explain representative applications of SHARP
devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes
no responsibility for any problems related to any intellectual property right of a third party resulting from the use of
SHARP's devices.
G
Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. SHARP
reserves the right to make changes in the specifications, characteristics, data, materials, structure, and other contents
described herein at any time without notice in order to improve design or reliability. Manufacturing locations are
also subject to change without notice.
G
Observe the following points when using any devices in this publication. SHARP takes no responsibility for damage
caused by improper use of the devices which does not meet the conditions and absolute maximum ratings to be used
specified in the relevant specification sheet nor meet the following conditions:
(i) The devices in this publication are designed for use in general electronic equipment designs such as:
--- Personal computers
--- Office automation equipment
--- Telecommunication equipment [terminal]
--- Test and measurement equipment
--- Industrial control
--- Audio visual equipment
--- Consumer electronics
(ii) Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when
SHARP devices are used for or in connection with equipment that requires higher reliability such as:
--- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.)
--- Traffic signals
--- Gas leakage sensor breakers
--- Alarm equipment
--- Various safety devices, etc.
(iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely high level of
reliability and safety such as:
--- Space applications
--- Telecommunication equipment [trunk lines]
--- Nuclear power control equipment
--- Medical and other life support equipment (e.g., scuba).
G
If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign
Exchange and Foreign Trade Law of Japan, it is necessary to obtain approval to export such SHARP devices.
G
This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under the copyright
laws, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, for any purpose, in whole or in part, without the express written permission of SHARP. Express written
permission is also required before any use of this publication may be made by a third party.
G
Contact and consult with a SHARP representative if there are any questions about the contents of this publication.
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