PQ2CF1 Sharp Microelectronics, PQ2CF1 Datasheet - Page 2

• Manufacturer Part Number: PQ2CF1
• Description: IC REG CHOPPER ADJ 2.5A TO-220
• Manufacturer: Sharp Microelectronics
• Type: Step-UP (Boost), Flybackr

Specifications of PQ2CF1

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 4.5 ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 50kHz
• Voltage - Input: 3.5 ~ 10 V
• Operating Temperature: -20°C ~ 80°C
• Mounting Type: Through Hole
• Package / Case: TO-220
• Power - Output: 15W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 425-1770-5

I
I
V
SD
QS
IN
262
A
Chopper Regulators
Output saturation voltage
Reference voltage
Reference voltage temperature fluctuation
Load regulation
Line regulation
Efficiency
Oscillation frequency
Oscillation frequency temperature fluctuation
Maximum duty
Over current detecting level
Charge current 1
Charge current 2
Input threshold voltage
Vc terminal low level voltage
Vc terminal high level voltage
On threshold voltage
Stand-by current
Output OFF-state consump-tion current
Fig. 1 Test Circuit
Electrical Characteristics
Block Diagram
+
C
100 F
0.047 F
IN
Parameter
1k
4
PQ2CF1
2
L
90 H
L : HK-12S100-9000 (made by Toho Co.)
D : ERC80-004 (made by Fuji electronics Co.)
3
1
3
prevention circuit
Low voltage
malfunction
regulator
D
Voltage
R
R
1k
circuit
V
2
1
2
IN
Overcurrent
Symbol
protection
| R
| R
V
D
circuit
I
I
V
V
V
V
V
CHG1
CHG2
THON
I
I
V
fo
eg
MAX
I
THL
SAT
SD
eg
q
CH
ref
fo
CL
L
S
ref
L |
I |
+
C
470 F
Oscillator
protection
O
Overheat
I
circuit
O
I
T
I
V
I
T
Duty=50%,
Duty=0%,
V
D,R
V
C
(Unless otherwise specified, conditions shall be V
SW
O
O
5
4
4
1
1
1
j
IN
j
IN
IN
O
=0 to 125
=0 to 125
=70 to 570mA
=0.5A
,D,R
terminal is open
terminal=0V,
terminal=0.5V,
terminal is open,
terminal is open,
terminal is open,
=2A
=3.5 to 10V
=35V,
=35V,
1
V
,R
O
2
ON/OFF
1
circuit
,R
R
F/F
S
4
4
2
Q
4
˚C
˚C
terminal=0V,No L,C
terminal=0.5V,No L,
Conditions
terminal
COMP.
Soft start
+
4
––
––
4
terminal
Fig. 2 Power Dissipation vs. Ambient
Note) Oblique line portion : Overheat protection may operate in this area.
5
5
4
terminal
terminal=1.1V
terminal=1.4V
terminal
V
4
Error amp.
C
20
15
10
5
0
–20
Temperature
–
+
O
,
Ambient temperature T
Amp.
V
0
ref
Vsw
COM
P
P
P
MIN.
1.235
P
–150
1
3
0.55
1.65
–80
2.7
0.3
0.1
D1
D1
D2
40
90
D2
––
––
––
––
––
––
––
––
20
5
:No heat sink
:With infinite heat sink
O
ADJ
40
IN
TYP.
–100
1.26
0.75
1.85
0.45
=5V,Io=0.2A,V
–50
270
0.6
0.1
0.2
4.4
0.2
4.0
85
50
––
0.5
5
60
a
(˚C)
MAX.
1.285
80
0.95
2.05
–20
–50
400
1.2
1.5
1.5
5.8
0.6
0.3
60
12
––
––
––
––
C
=12V, T
PQ2CF1
100
Unit
kHz
mA
a
V
V
A
V
V
V
V
%
%
%
%
%
%
=25
A
A
A
˚C
)