SHARP PQ30RV11

Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Variable Output Low Power-Loss Voltage Regulators
■ Features
■ Outline Dimensions
¡Compact resin full-mold package
¡Low power-loss (Dropout voltage : MAX.0.5V)
¡Variable output voltage (setting range : 1.5 to 30V)
¡Built-in output ON/OFF control function
(Unit : mm)
4.5±0.2
10.2MAX
7.4±0.2
3.6±0.2
2.8±0.2
13.5MIN
¡Power supply for print concentration control of electronic
typewriters with display
¡Series power supply for motor drives
¡Series power supply for VCRs and TVs
φ3.2±0.1
4-1.4
+0.3
-0
4-0.6
+0.2
-0.1
(1.5)
(0.5)
3-(2.54)
■ Model Line-ups
1
● 2
● 3
● 4
●
Output voltage
1A output
2A output
Reference voltage
precision : ±4%
PQ30RV1
PQ30RV2
Reference voltage
precision : ±2%
4.8MAX
15.6±0.5
29.1MAX
■ Applications
PQ30RV31
PQ30RV11
Internal connection diagram
1
PQ30RV21
2
Specific IC
4
3
1 DC input (VIN)
2 DC output (VO)
3 GND
4 Output voltage
minute
adjustment
terminal (VADJ)
■ Equivalent Circuit Diagram
1
2
-
4
+
Reference
voltage
generation
circuit
*ASO
protection
circuit
Overheat
protection
circuit
*ASO:Area of Safety
Operation
3
· 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. ”
Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
■ Absolute Maximum Ratings
(Ta=25˚C)
Parameter
*1
*1
*2
*1
*2
Input voltage
Output voltage adjustment voltage
PQ30RV1/PQ30RV11
Output current
PQ30RV2/PQ30RV21
Power dissipation (No heat sink)
PQ30RV1/PQ30RV11
Power dissipation
PQ30RV2/PQ30RV21
(With infinite heat sink)
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
Symbol
VIN
VADJ
IO
PD1
PD2
Tj
Topr
Tstg
Tsol
Rating
35
7
1
2
1.5
15
18
150
-20to+80
-40to+150
260 (For 10s)
Unit
V
V
A
W
W
˚C
˚C
˚C
˚C
All are open except GND and applicable terminals.
Overheat protection may operate at Tj>=125˚C.
■ Electrical Characteristics
Unless otherwise specified, condition shall be
VIN=15V, VO=10V, IO=0.5A, R1=390Ω (PQ30RV1/PQ30RV11)
VIN=15V, VO=10V, IO=1.0A, R1=390Ω (PQ30RV2/PQ30RV21)
Parameter
Symbol
Conditions
Input voltage
VIN
R2=94Ω to 8.5kΩ
PQ30RV1/PQ30RV2
Output voltage
VO
R2=84Ω to 8.7kΩ
PQ30RV11/PQ30RV21
IO=5mA to 1A
PQ30RV1/PQ30RV11
Load regulation
RegL
IO=5mA to 2A
PQ30RV2/PQ30RV21
Line regulation
VIN=11 to 28V
RegI
Cref=0
Ripple rejection
Fefer to Fig. 2
RR
Cref=3.3µF
PQ30RV1/PQ30RV2
Reference voltage
Vref
PQ30RV11/PQ30RV21
Temperature coefficient of reference voltage
Tj=0 to 125˚C
TcVref
*3, IO=0.5A
PQ30RV1/PQ30RV11
Dropout voltage
Vi-O
*3, IO=2A
PQ30RV2/PQ30RV21
Quiescent current
IO=0
Iq
*3
(Ta=25˚C)
MIN.
4.5
TYP.
-
MAX.
35
Unit
V
1.5
-
30
V
45
55
1.20
1.225
-
0.3
0.5
0.5
55
65
1.25
1.25
±1.0
1.0
1.0
2.5
1.30
1.275
-
dB
-
-
0.5
V
-
-
7
mA
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
Fig.1 Test Circuit
VIN
1
●
R2
3
●
0.33µF
A
VO
47µF
2
●
IO
A
4
●
+
R1
Iq 390Ω
R2
VO=Vref X 1+ --------R1
V
Vref
[R1=390Ω,Vref =1.25V]
RL
V
Fig.2 Test Circuit of Ripple Rejection
1
●
ei
47µF
2
●
~
R2
3
●
VIN
0.33µF
4
●
R1
390Ω
+
+
IO
+
Cref
3.3µF
V
~ eo
RL
IO=0.5A
f=120Hz (sine wave)
ei=0.5Vrms
RR=20 log (ei/eo)
=1.25X
R2
1+ --------R1
%
%
V
%
Low Power-Loss Voltage Regulators
Fig.3 Power Dissipation vs. Ambient
Temperature (PQ30RV1/PQ30RV11)
Fig.4 Power Dissipation vs. Ambient
Temperature (PQ30RV2/PQ30RV21)
PD1 :No heat sink
PD2 :With infinite heat sink
PD1 :No heat sink
PD2 :With infinite heat sink
20
Power dissipation PD (W)
Power dissipation PD (W)
20
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
15
PD2
10
5
PD1
PD2
15
10
5
PD1
0
-20
0
50
100
150
Ambient temperature Ta (˚C)
Note) Oblique line portion:Overheat protection may operate
in this area.
Fig.5 Overcurrent Protection Characteristics
(PQ30RV1/PQ30RV11)
0
-20
50
100
150
Ambient temperature Ta (˚C)
Note) Oblique line portion:Overheat protection may operate
in this area.
Fig.6 Overcurrent Protection Characteristics
(PQ30RV2/PQ30RV21)
100
Relative output voltage (%)
Relative output voltage (%)
100
80
60
40
20
0
80
60
40
20
0
0
0.5
1.0
1.5
Output current IO (A)
Reference voltage deviation ∆Vref (mV)
R1 390Ω
25
20
15
10
5
10
2
3
10
R2 (Ω)
10
4
1.0
2.0
3.0
Output current IO (A)
4.0
Fig.8 Reference Voltage Deviation vs.
Junction Temperature
30
0
101
0
2.0
Fig.7 Output Voltage Adjustment
Characteristics
Output voltage VO (V)
0
10
5
10
0
-10
-25
R1=390Ω,R2=2.7kΩ,VIN=15V
IO=0.5A(PQ30RV1/PQ30RV11)
IO= 1A(PQ30RV2/PQ30RV21)
0
25
50
75
100 125
Junction temperature Tj (˚C)
Low Power-Loss Voltage Regulators
Fig.9 Output Voltage vs. Input Voltage
(PQ30RV1/PQ30RV11)
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.10 Output Voltage vs. Input Voltage
(PQ30RV2/PQ30RV21)
15
15
R1=390Ω,R2=2.7kΩ,Tj=25˚C
Output voltage VO (V)
Output voltage VO (V)
R1=390Ω,R2=2.7kΩ,Tj=25˚C
10
RL=∞
5
RL=10Ω
0
5
10
15
Input voltage VIN (V)
5
RL=5Ω
20
Fig.11 Dropout Voltage vs. Junction
Temperature (PQ30RV1/PQ30RV11)
0.5
R1=390Ω,R2=2.7kΩ
VIN:input voltage shall be the
0.4 value when output voltage is
95% in comparison with the initial value
Io=1A
0.3
0.75A
0.2
0.5A
0.1
0.25A
0
-20
25
50
75
100
0
Junction temperature Tj (˚C)
0
20
0.5
R1=390Ω,R2=2.7kΩ
VIN:input voltage shall be the
0.4 value when output voltage is
95% in comparison with the initial value
0.3
IO=2A
1.5A
0.2
1A
0.1
0
-20
125
Fig.13 Quiescent Current vs. Junction
Temperature
5
10
15
Input voltage VIN (V)
Fig.12 Dropout Voltage vs. Junction
Temperature (PQ30RV2/PQ30RV21)
Dropout voltage Vi-O (V)
Dropout voltage Vi-O (V)
RL=∞
0
0
0.5A
0
25
50
75
100
Junction temperature Tj (˚C)
125
Fig.14 Ripple Rejection vs. Input Ripple
Frequency (PQ30RV1/PQ30RV11)
5
80
VIN=35V
IO=0
70
Ripple rejection RR (dB)
Quiescent current Iq (mA)
10
4
3
2
1
0
-20
0
25
50
75
100
Junction temperature Tj (˚C)
125
Cref=3.3µF
60
50
No Cref
40
30
20 Tj=25˚C
R1=390Ω,R2=2.7kΩ
10 IO=0.5A,ei=0.5Vrms,
0 VIN=15V
0.1
1
10
100
Input ripple frequency f (kHz)
Low Power-Loss Voltage Regulators
Fig.15 Ripple Rejection vs. Input Ripple
Frequency (PQ30RV2/PQ30RV21)
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.16 Ripple Rejection vs. Output Current
(PQ30RV1/PQ30RV11)
80
80
Cref=3.3µF
60
No Cref
50
40
30
20 Tj=25˚C
R1=390Ω,R2=2.7kΩ
10 IO=0.5A,ei=0.5Vrms,
0 VIN=15V
0.1
1
10
100
Input ripple frequency f (kHz)
Fig.17 Ripple Rejection vs. Output Current
(PQ30RV2/PQ30RV21)
Ripple rejection RR (dB)
Ripple rejection RR (dB)
70
No Cref
60
50
40
Tj=25˚C
R1=390Ω,R2=2.7kΩ
VIN=15V,ei=0.5Vrms,f=120Hz
30
0
0.2
0.4
0.6
0.8
Output current IO (A)
No Cref
50
40
Tj=25˚C
R1=390Ω,R2=2.7kΩ
VIN=15V,ei=0.5Vrms,f=120Hz
0.2
0.4
0.6
0.8
Output current IO (A)
1.0
Fig.18 Output Peak Current vs. Dropout
Voltage (PQ30RV1/PQ30RV11)
2.0
1.5
Tj=25˚C
1.0 R1=390Ω,R2=2.7kΩ
0
5
10
Dropout voltage Vi-O (V)
1.0
Fig.19 Output Peak Current vs. Dropout
Voltage (PQ30RV2/PQ30RV21)
60
0
Output peak current IOP (A)
Ripple rejection RR (dB)
Cref=3.3µF
Cref=3.3µF
30
80
70
70
15
Fig.20 Output Peak Current vs. Junction
Temperature (PQ30RV1/PQ30RV11)
Output peak current IOP (A)
Output peak current IOP (A)
2.0
4
3
Tj=25˚C
R1=390Ω,R2=2.7kΩ
0
5
10
Dropout voltage Vi-O (V)
15
VIN-VO=5V
1.5
2V
0.5V
1.0
0.5
-20
IOP:Output current when output voltage
is 95% in comparison with the initial value
R1=390Ω,R2=2.7kΩ
0
25
50
75
100
Junction temperature Tj (˚C)
125
Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.21 Output Peak Current vs. Junction
Temperature (PQ30RV2/PQ30RV21)
Output peak current IOP (A)
5
4
VIN-VO=5V
2V
3
0.5V
IOP:Output current when output voltage
is 95% in comparison with the initial value
R1=390Ω,R2=2.7kΩ
2
-20
0
25
50
75
100
Junction temperature Tj (˚C)
125
■ Standard Connection
D1
VO
2
●
R2
4
●
3
●
CIN
D1
R1
+
Cref
390Ω
to10kΩ
+
CO
Load
1
●
VIN
: This device is necessary to protect the element from damage when reverse voltage may be applied to the regulator in case of
input short-circuiting.
Cref
: This device is necessary when it is required to enhance the ripple rejection or to delay the output start-up time(*1).
(*1)Otherwise, it is not necessary.
(Care must be taken since Cref may raise the gain, facilitating oscillation.)
(*1)The output start-up time is proportional to Cre fX R2.
CIN, CO : Be sure to mount the devices CIN and CO as close to the device terminal as possible so as to prevent oscillation.
The standard specification of CIN and CO is 0.33µF and 47µF, respectively. However, ajust them as necessary after checking.
R1, R2 : These devices are necessary to set the output voltage. The output voltage VO is given by the following formula:
VO=Vref X (1+R2/R1)
(Vref is 1.25V TYP)
The standard value of R1 is 390Ω.But value up 10kΩdoes not cause any trouble.
Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
■ ON/OFF Operation
D1
1
●
VIN
D2
4
●
R1
+
3
●
VADJ
R2
VO
2
●
R2
CIN
D2
VADJ
R1
R3
CO
RL
RD
RL
VO’
VC
High : Output OFF
Low : Output ON
Equivalent Circuit
in OFF-state
¡ON/OFF operation is available by mounting externally D2 and R3.
¡When VADJ is forcibly raised above Vref (1.25V TYP) by applying the external signal, the output is turned off (pass transistor of
regulator is turned off). When the output is OFF, VADJ must be higher then Vref MAX., and at the same time must be lower than
maximum rating 7V.
In OFF-state, the load current flows to RL from VADJ through R2. Therefore the value of R2 must be as high as possible.
¡VO'=VADJ X RL/(RL+R2)
occurs at the load. OFF-state equivalent circuit R1 up to 10Ω is allowed. Select as high value of RL and R2 as possible in this range.
In some case, as output voltage is getting lower (VO<1V) , impedance of load resistance rises. In such condition, it is sometime
impossible to obtain the minimum value of VO'. So add the dummy resistance indicated by RD in the figure to the circuit parallel to
the load.
■ An Example of ON/OFF Circuit Using the 1-chip Microcomputer Output Port (PQ30RV1)
<Specification>
Output port of microcomputer
VOH (max) =0.5 V
VOH (min) =2.4 V (IOH=0.2mA)
MAX. rating of IOH=0.5mA
Output should be set as follows.
15.6V RL=52Ω (IO=0.3A)
From VO=1.25V (1+R2/R1) we get VO=15.6V.
R2/R1=11.48
Assuming that VF(max)=0.8V for D2 in case of VOH(min)=2.4V, we get VADJ=VOH(min)-VF(max)=2.4V-0.8V=1.6V. From
Vref(max)=1.3V we get R3=0 Ω
If R1=10k Ω, we get R2=11.48 X R1=114.8k Ω and IOH as follows, ingnoring RL (52 Ω) :
IOH=1.6V X (R1+R2) /R1 X R2
=1.6V X (10k Ω+114.8k Ω) /10k Ω X 114.8k Ω=0.17mA
Hence, IOH<0.2mA. Therefore VOH(min)is ensured.
Next, assuming that VF(min) =0.5V for D2 in case of VOH(max), we get:
IOH=(5V-0.5V) (R1+R2) /R1 X R2=0.49mA which is less than the rating.
Figure 1 shows the VO-VC characteristics when R1=10k Ω, R2=115k Ω, R3=0 Ω, VIN=17V, RL=52 Ω, and D1=1S2076A (Hitachi).
Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Output voltage VO (V)
Output Voltage vs. Control Voltage (PQ30RV1)
VIN=17V
RL=52Ω
R1=10kΩ
R2=115kΩ
R3=0
D1=1S2076A
15
10
5
0
1
2
3
4
Control voltage VC (V)
5
■ Model Line-ups for Lead Forming Type
Output voltage
Output voltage
precision:±2.5%
5V output
2A output
PQ30RV1B
PQ30RV2B
■ Outline Dimensions (PQ30RV1B/PQ30RV2B)
(Unit : mm)
4.5±0.2
10.2MAX
)
.5
16.4±0.7
±0
(5
(2.0)
φ3.2±0.1
PQ30RV1
(1.5)
4-1.4
+0.3
-0
4-0.6
+0.2
-0.1
(0.5)
(3.2)
3-(2.54)
4.4MIN
(24.6)
7.4±0.2
3.6±0.2
2.8±0.2
5±0.5
8.2±0.7
· ( ) : Typical value
· Radius of lead forming portion:R=0.5 to 1.5mm
1
● 2
● 3
● 4
●
Internal connection diagram
1
2
Specific IC
3
4
1 DC input (VIN)
2 DC output (VO)
3 GND
4 Output voltage
minute
adjustment
terminal (VADJ)
Note) The value of absolute maximum ratings and electrical characteristics is same as ones of PQ30RV1/2 series.