CP34063
1.5A,Step-Up/Down/Inverting Switching 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
The
CP34063 Series is a monolithic control circuit containing the
primary functions required for DCtoDC 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 StepDown and StepUp and
VoltageInverting applications with a minimum number of external
components.
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
Figure 1. Representative Schematic Diagram
S Q
R
Q2
Q1
100
I
pk
Oscillator C
T
Comparator
+
-
1.25 V
Reference
Regulator
1
2
3
4
5
6
7
8
Drive
Collector
I
pk
Sense
V
CC
Comparator
Inverting
Input
Switch
Collector
Switch
Emitter
Timing
Capacitor
Gnd
(Bottom View)
This device contains 51 active transistors.
SOP8
PDIP8
1
8
1
8
PIN CONNECTIONS
1
2
3
4
6
7
8
1 -
Switch Collector
2 -
Switch Emitter
3 -
Timing Capacitor
4 -
Gnd
5 -
Comparator Inverting Input
6 -
Vcc
7 -
Ipk Sense
8 -
Driver Collector
5
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Fax:886-3-3521052
Page 1 of 10
Rev 1.
1 Jul.18,2003
CP34063
1.5A,Step-Up/Down/Inverting Switching 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
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
V
CC
40
Vdc
Comparator Input Voltage Range
V
IR
0.3 to +40
Vdc
Switch Collector Voltage
V
C(switch)
40
Vdc
Switch Emitter Voltage (V
Pin 1
= 40 V)
V
E(switch)
40
Vdc
Switch Collector to Emitter Voltage
V
CE(switch)
40
Vdc
Driver Collector Voltage
V
C(driver)
40
Vdc
Driver Collector Current (Note 1)
I
C(driver)
100
mA
Switch Current
I
SW
1.5
A
Power Dissipation and Thermal Characteristics
Plastic Package, PDIP-8
T
A
= 25
C
P
D
1.25
W
Thermal Resistance
R
JA
100
C/W
SOIC Package, SOP-8
T
A
= 25
C
P
D
625
mW
Thermal Resistance
R
JA
160
C/W
Operating Junction Temperature
T
J
+150
C
Operating Ambient Temperature Range
T
A
C
0 to +70
Storage Temperature Range
T
stg
65 to +150
C
1. Maximum package power dissipation limits must be observed.
2. ESD data available upon request.
3. NCV prefix is for automotive and other applications requiring site and change control.
ORDERING INFORMATION
CP 34063 X
A : Taping (SOP
-8)
N : Tube (DIP
-8)
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
2 of 10
Rev 1.
1 Jul.18,2003
CP34063
1.5A,Step-Up/Down/Inverting Switching 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
ELECTRICAL CHARACTERISTICS
(V
CC
= 5.0 V, T
A
= T
low
to T
high
[Note 4], unless otherwise specified.)
Characteristics
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (V
Pin 5
= 0 V, C
T
= 1.0 nF, T
A
= 25
C)
f
osc
24
33
42
kHz
Charge Current (V
CC
= 5.0 V to 40 V, T
A
= 25
C)
I
chg
24
33
42
A
Discharge Current (V
CC
= 5.0 V to 40 V, T
A
= 25
C)
I
dischg
140
220
260
A
Discharge to Charge Current Ratio (Pin 7 to V
CC
, T
A
= 25
C)
I
dischg
/I
chg
5.2
6.5
7.5
Current Limit Sense Voltage (I
chg
= I
dischg
, T
A
= 25
C)
V
ipk(sense)
250
300
350
mV
OUTPUT SWITCH (Note 5)
Saturation Voltage, Darlington Connection
( I
SW
= 1.0 A, Pins 1, 8 connected)
V
CE(sat)
1.0
1.3
V
Saturation Voltage (Note 6)
(I
SW
= 1.0 A, R
Pin 8
= 82
to V
CC
, Forced
]
20)
V
CE(sat)
0.45
0.7
V
DC Current Gain (I
SW
= 1.0 A, V
CE
= 5.0 V, T
A
= 25
C)
h
FE
50
120
Collector OffState Current (V
CE
= 40 V)
I
C(off)
0.01
100
A
COMPARATOR
Threshold Voltage
T
A
= 25
C
T
A
= T
low
to T
high
V
th
1.225
1.21
1.25
1.27
1.29
V
Threshold Voltage Line Regulation (V
CC
= 3.0 V to 40 V)
Reg
line
1.4
5.0
mV
Input Bias Current (V
in
= 0 V)
I
IB
40
400
nA
TOTAL DEVICE
Supply Current (V
CC
= 5.0 V to 40 V, C
T
= 1.0 nF, Pin 7 = V
CC
,
V
Pin 5
> V
th
, Pin 2 = Gnd, remaining pins open)
I
CC
2.5
4.0
mA
5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
6. If the output switch is driven into hard saturation (nonDarlington configuration) at low switch currents (
300 mA) and high driver currents
(
30 mA), it may take up to 2.0
s 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
nonDarlington configuration is used, the following output drive condition is recommended:
Forced
b
of output switch :
IC output
IC driver 7.0 mA *
w
10
* The 100
resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
4. T
low
= 0
C for
CP34063
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
3 of 10
Rev 1.
1 Jul.18,2003
CP34063
1.5A,Step-Up/Down/Inverting Switching 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
t
on
V
CC
= 5.0 V
Pin 7 = V
CC
Pin 5 = Gnd
T
A
= 25
C
t
off
Figure 2. Output Switch OnOff Time versus
Oscillator Timing Capacitor
Figure 3. Timing Capacitor Waveform
0.01 0.02
0.05 0.1
0.2
0.5 1.0
2.0
5.0 10
C
T
, OSCILLATOR TIMING CAPACITOR (nF)
, OUTPUT
SWITCH ONOFF
TIME ( s)
on-of
f
t
10
s/DIV
, OSCILLA
T
OR VOL
T
AGE (V)
OSC
200 mV/DIV
V
V
CC
= 5.0 V
Pin 7 = V
CC
Pin 2 = Gnd
Pins 1, 5, 8 = Open
C
T
= 1.0 nF
T
A
= 25
C
1000
500
200
100
50
20
10
5.0
2.0
1.0
Figure 4. Emitter Follower Configuration Output
Saturation Voltage versus Emitter Current
Figure 5. Common Emitter Configuration Output
Switch Saturation Voltage versus
Collector Current
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
, SA
TURA
TION VOL
T
AGE (V)
CE(sat)
I
E
, EMITTER CURRENT (A)
V
V
CC
= 5.0 V
Pins 1, 7, 8 = V
CC
Pins 3, 5 = Gnd
T
A
= 25
C
(See Note 7)
, SA
TURA
TION VOL
T
AGE (V)
CE(sat)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
I
C
, COLLECTOR CURRENT(A)
V
Darlington Connection
Forced
= 20
-55
-25
0
25
50
75
100
125
, CURRENT
LIMIT
SENSE VOL
T
AGE (V)
IPK(sense)
T
A
, AMBIENT TEMPERATURE (
C)
V
V
CC
= 5.0 V
I
chg
= I
dischg
0
5.0
10
15
20
25
30
35
40
, SUPPL
Y
CURRENT
(mA)
CC
V
CC
, SUPPLY VOLTAGE (V)
I
C
T
= 1.0 nF
Pin 7 = V
CC
Pin 2 = Gnd
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
1.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
400
380
360
340
320
300
280
260
240
220
200
3.6
3.2
2.4
2.0
1.6
1.2
0.8
0.4
0
1.0
2.8
V
CC
= 5.0 V
Pin 7 = V
CC
Pins 2, 3, 5 = Gnd
T
A
= 25
C
(See Note 7)
Figure 6. Current Limit Sense Voltage
versus Temperature
Figure 7. Standby Supply Current versus
Supply Voltage
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052
Page
4 of 10
Rev 1.
1 Jul.18,2003
CP34063
1.5A,Step-Up/Down/Inverting Switching 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
170
H
L
8
180
7
R
sc
0.22
6
V
in
12 V
100
+
5
R1 2.2 k
R2
47 k
S Q
R
Q2
Q1
I
pk
Osc
C
T
V
CC
+
-
Comp.
1.25 V
Ref
Reg
1
2
3
4
1N5819
C
T
1500
pF
330
C
O
+
V
out
28 V/175 mA
V
out
1.0
H
+
100
Optional Filter
Test
Conditions
Results
Line Regulation
V
in
= 8.0 V to 16 V, I
O
= 175 mA
30 mV =
0.05%
Load Regulation
V
in
= 12 V, I
O
= 75 mA to 175 mA
10 mV =
0.017%
Output Ripple
V
in
= 12 V, I
O
= 175 mA
400 mVpp
Efficiency
V
in
= 12 V, I
O
= 175 mA
87.7%
Output Ripple With Optional Filter
V
in
= 12 V, I
O
= 175 mA
40 mVpp
Figure 8. StepUp Converter
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Fax:886-3-3521052
Page
5 of 10
Rev 1.
1 Jul.18,2003
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