SHARP PQ1PF2

Primary Regulators
PQ1PF2
PQ1PF2
(Under Development)
Primary Regulator for Switching Power Supply (30W Class)
■ Outline Dimensions
(Unit : mm)
4.5±0.2
10.2MAX
φ3.2±0.1
16.4±0.7
(1.5)
5-0.8±0.1
2.0
¡Switching power supplies for VCRs
¡Switching power supplies for peripheral equipment of PCs
(FDD/CD-ROM drive/HDD)
PQ1PF2
(0.5)
3.2±0.5
4-(1.7)
4.4MIN
7.4±0.2
(24.6)
■ Applications
2.8±0.2
5.0±0.5
¡5-terminal lead forming package (equivalent to TO-220)
¡Built-in oscillation circuit
(oscillation frequency : TYP.100kHz)
¡Output for power supply : 30W class
¡Built-in overheat protection, overcurrent protection function
3.6±0.2
■ Features
(5.0)
8.2±0.7
· ( ) : Typical dimensions
· Radius of lead forming portion
R=TYP 1.0
1●
● 2●
3●
4●
5
1 Drain (VDS)
2 GND
3 Control (CA)
4 Feed back (FB)
5 Supply voltage (VCC)
■ Absolute Maximum Ratings
*1
*2
Parameter
Drain-GND (source) voltage
Drain current
Power supply voltage
FB terminal input voltage
CA terminal input current
*3
Power dissipation
*4
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
*1
*2
*3
*4
(Ta=25˚C)
Symbol
VDS
ID
VCC
VFB
ICA
PD1
PD2
Tj
Topr
Tstg
Tsol
Rating
500
3
35
4
2
1.5
18
150
-20 to +80
-40 to +150
260 (For 10s.)
Unit
V
A
V
V
mA
W
W
˚C
˚C
˚C
˚C
Voltage between VCC terminal and GND terminal.
Voltage between FB-terminal and GND terminal.
PD1:No heat sink, PD2:With infinite heat sink
Overheat protection may operate at 125=<Tj=<150˚C
· Please refer to the chapter “ Handling Precautions ”.
“ 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 version of the device specification sheets before using any SHARP's device. ”
PQ1PF2
Primary Regulators
■ Electrical Characteristics
(Unless otherwise specified,conditions shall be VDS=10V,VCC=18V,VCA=OPEN,VFB=2.2V,RL=56Ω, Ta=25˚C)
Parameter
Drain-source onstate resistance
Symbol
RDS (ON)
Drain-source leakage current
IDSS
fo
∆fo
DMAX
VFBL
VFBH
VFB (OCP)
IFB
VCAL
VCAH
VCA (ON/OFF)
VCA (OVP)
ICAIN
ID (OCP)
VCC (ON)
VCC (OFF)
Oscillation frequency
Temperature change in oscillation frequency
Maximum duty
FB threshold voltage
FB current
CA threshold voltage
CA sink current
Overcurrent detecting level
Operation starting voltage
Operation stopping voltage
Stand-by current
ICC (ST)
Output OFF-mode consumpion current
ICC (OFF)
Output-operating mode consumption current
Charging current
ICC (OP)
ICA (CHG)
Tj=0 to 125˚C
Duty=0%
Duty=DMAX
VCA=6V
VFB=GND
Duty=0%
Duty=DMAX
VFB=1V,VCA=6V
VDS=OPEN,VFB=OPEN
VDS=OPEN,VFB=OPEN
VDS=OPEN,VCC=14V,
VFB=OPEN
VDS=OPEN,VCA=GND
VFB=OPEN
Test Circuit
CIN
100µF
A
+
A
VCC
5
●
1
●
PQ1PF2
4
●
3
●
2
●
RL
R2
A
VFB
A
VCA
VDS
■ Block Diagram
g
CA
3
VDS
1
VCC
5
20
Cut-off voltage
detecting circuit
OSC
-
250
µA
90
42
2.6
-800
0.49
7.2
20
15.5
8.5
100
±5
45
0.9
1.8
2.8
-620
0.9
1.8
0.6
7.7
36
1.8
17.0
9.3
110
50
3.1
-440
0.74
8.2
52
18.5
10.1
kHz
%
%
V
V
V
µA
V
V
V
V
µA
A
V
V
-
100
150
µA
-
0.6
1.8
mA
-15
10
-10
18
-5
mA
µA
,,,
,,,
,,,
,,,
PD1 :No heat sink
PD2 :With infinite heat sink
PD2
5
RQ
S
+
-
0
20
40
60
Ambient temperature Ta (˚C)
80
Note) Oblique line portion:Overheat protection may
operate in this area.
PWM
DET
-
10
0
-20
Constant
voltage
source
OFF voltage
detecting circuit
FB 4
Unit
Ω
PD1
Low voltage
malfunction
prevention circuit
Overload
cut-off voltage
detecting circuit
MAX.
3.0
15
←
Overheat
detection
circuit
TYP.
2.2
Fig. 2 Power Dissipation vs. Ambient
Temperature
25
0.01µF
MIN.
-
VCA=GND,VFB=OPEN
Power dissipation PD (W)
Fig.1
Conditions
ID=1.3A
VDS=500V,VCC=7V
VCA=GND,VFB=GND
Drive
circuit
Overcurrent
detecting
circuit
2
GND