CP1032
Chopper Regulators
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
1 of 12
Rev 1.1 Aug.31, 2004
s
Features
q
Maximum switching current: 3.5A
q
Built-in ON/OFF control function
q
Built-in soft start function to suppress overshoot of output
Parameter Symbol Rating Unit
Input voltage 40 V
3.5 A
35
7
41
-
1
V
V
V
W
V
-
0.3 to
+
40
Switching current
150 C
-
20 to
+
85 C
Junction temperature
Input-output voltage
Output
-
COM voltage
Error input voltage
V
IN
V
I-O
V
OUT
V
soft
terminal voltage V
soft
V
ADJ
I
SW
T
j
(Ta
=
25
C)
Operating temperature
Storage temperature
Soldering temperature
T
opr
-
40 to
+
150 C
T
stg
260 (10s) C
T
sol
2
3
1
5
Power dissipation P
D
4
1 Voltage between V
IN
terminal and COM terminal
2 Voltage between V
OUT
terminal and COM terminal
3 Voltage between V
SOFT
terminal and COM terminal
4 P
D
:With infinite heat sink
5 Overheat protection may operate at T
j
=
125C to 150C
q
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]
s
Applications
q
LCD monitors
q
Car navigation systems
q
Switching power supplies
s
Absolute Maximum Ratings
Please refer to the chapter " Handling Precautions ".
q
Sleeve-packaged product
voltage in power on sequence or ON/OFF control sequence
function
q
Built-in oscillation circuit (Oscillation frequency: TYP. 150kHz)
q
Built-in overheat protection function, overcurrent shut-down
CP1032
Chopper Regulators
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
2 of 12
Rev 1.1 Aug.31, 2004
(Unless otherwise specified, condition shall be V
IN
=12V, I
O
=0.5A, V
O
=5V, V
soft
terminal
=0.1F, Ta=25C)
Parameter Symbol Conditions MIM. TYP.
MAX.
Unit.
Test circuit of Figure2 4.9 5.0 5.1 V
0.5I
LOAD
3A
Test circuit of Figure2
0.5I
LOAD
3A
8VV
IN
40V 4.8 5.0 5.2 V
Output Voltage V
OUT
-40T
J
125
Test circuit of Figure2
8VV
IN
40V 4.75 5.0 5.25 V
Efficiency I
LOAD
=3A
80
%
Oscillator Frequency fosc 135 150 165 kHz
Parameter Symbol Conditions
V
SAT
V
ref
V
ref
|R
eg
L|
|R
eg
I|
f
O
I
L
Unit
MAX.
TYP.
MIN.
-
-
-
-
-
-
-
-
-
1.235
135
0.7 0.8 0.9
3.6
I
SW
=
3A
-
T
j
=
0 to 125C
I
O
=
0.5 to 3A
V
IN
=
8 to 35V
I
O
=
3A
-
1.4
1.26
0.5
0.2
1
80
150
2
4.2
1.8
1.285
1.5
2.5
165
5.8
(Unless otherwise specified, condition shall be V
IN
=
12V, I
O
=
0.5A, V
O
=
5V, V
soft
terminal
=
0.1
F,
Ta=25C)
V
V
%
%
%
%
kHz
%
V
3.8 4.6 5.5 V
-
140 400
A
-
8
16
mA
A
Output saturation voltage
Reference voltage
Reference voltage temperature fluctuation
Load regulation
Line regulation
Efficiency
Oscillation frequency
Oscillation frequency temperature fluctuation
Overcurrent detecting level
ON threshold voltage
Stand-by current
Output OFF-state dissipation current
f
O
T
j
=
0 to 125C
-
I
CHG
-
-
-
-
10
-
A
1.3
-
V
2.3
-
V
Charge current
V
TH(ON)
V
THIL
Input threshold voltage
V
THH
V
THL
I
SD
I
QS
Overcurrent shutdown threshold voltage
V
IN
=
40V, terminal
=
0.9V
Duty ratio
=
100%, terminals is open, terminal
terminal
=
0V, terminal
V
IN
=
40V, terminal
=
0V
Duty ratio
=
0%, terminal
=
0V, terminal
, terminals is open, terminal
4
2
5
5
4
5
4
4
5
terminal
5
5
5
(CP1032-ADJ)
s
Electrical Characteristics
(CP1032-5.0V)
CP1032
Chopper Regulators
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
3 of 12
Rev 1.1 Aug.31, 2004
Order Information
Package Part Number Packing Type Marking
CP1032 ADJ Tape/Tube CP1032 ADJ
TO-2
63-5
CP1032 5.0 Tape/Tube CP1032 5.0
CP1032 ADJ N Tape/Tube CP1032 ADJ
TO-220-5
CP1032 5.0 N Tape/Tube CP1032 5.0
CP1032 XXX X X
Blank: Tube
A: Taping Reel
Blank: TO-263-5
N: TO-220-5
ADJ
5.0V
CP1032
Chopper Regulators
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
4 of 12
Rev 1.1 Aug.31, 2004
(TO-263-5)
Connection Diagrams
(1)
Vin
(5)
Vsoft
(4)
Oadj
(2)
Vout
(3)
COM (Common to heat sink)
(1)
Vin
(5)
Vsoft
(4)
Oadj
(2)
Vout
(3)
COM (Common to heat sink)
(TO-2
20
-5)
CP1032
Chopper Regulators
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
5 of 12
Rev 1.1 Aug.31, 2004
Fig.1 Test Circuit
R2
R1
1K
D
C
IN
220 F
Co
1000 F
L
45 H
V
IN
I
CHG
A
CP1032-ADJ
1
2
3
4
5
Io
LOAD
I
SD
I
QS
A
Fig.2 Test Circuit
D
C
IN
220 F
Co
1000 F
L
45 H
V
IN
I
CHG
A
CP1032-5.0
1
2
3
4
5
Io
LOAD
I
SD
I
QS
A
5 terminal Vo output
LOW OFF
HIGH ON
OPEN ON
5 terminal Vo output
LOW OFF
HIGH ON
OPEN ON
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