HITACHI HA17723

HA17723/F/P
Precision Voltage Regulator
Description
The HA17723 high-accuracy general-purpose voltage regulator features a very low stand-by current,
(quiescent current) a low temperature drift, and high ripple rejection ratio. If you need over than 150mA
output current, adding external PNP or NPN transistor. This voltage regulator is suitable for various
applications, for example, series or parallel regulator, switching regulator.
Ordering Information
Type No.
Application
Package
HA17723
Commercial use
DP-14
HA17723F
HA17723P
FP-14DA
Industrial use
DP-14
Pin Arrangement
NC
1
14
NC
CURRENT
LIMIT
CURRENT
SENSE
2
13
COMP
3
12
VCC
VIN (–)
4
11
VC
VIN (+)
5
10
VOUT
VREF
6
9
VZ
VEE
7
8
NC
(Top View)
HA17723/F/P
Circuit Schematic
VCC
VC
VIN (+)
VIN (–)
VOUT
VREF
COMP
CL
VZ
CS
VEE
2
HA17723/F/P
Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
HA17723/P
HA17723F
Unit
Supply voltage
VCC
40
40
V
Input/Output voltage differential
Vdiff (IN-O)
40
40
V
Differential input voltage
VIN (diff)
±5
±5
V
Maximum output current
I OUT
150
150
mA
Current from VREF
I REF
15
15
mA
Power dissipation
PT
830 (Note 1)
625 (Note 2)
mW
Operating temperature
Topr
0 to +70 / –20 to +75
0 to +70
°C
Storage temperature
Tstg
–55 to +125
–55 to +125
°C
Thermal resistance θj–a (°C/W)
Notes: 1. Above 25°C derate by 8.3mW/°C
2. Allowable temperature of IC junction part, Tj (max), is as shown below.
Tj (max) = θj - a • Pc (max)+Ta
(θj - a is thermal resistance value during mounting, and Pc (max) is the maximum value of IC
power dissipation.)
Therefore, to keep Tj (max) ≤ 125°C, wiring density and board material must be selected
according to the board thermal conductivity ratio shown below.
Be careful that the value of Pc (max) does not exceed that PT.
240
SOP14
without compound
220
40 mm
200
Board
180
160
140
120
100
80
0.8 t ceramic or
1.5 t epoxy
SOP14
using paste
containing
compound
1
0.5
1
2
2
5
3
10
20
Board thermal conductivity (W/m°C)
(1)
(2)
(3)
Glass epoxy board with 10% wiring density
Glass epoxy board with 30% wiring density
Ceramic board with 96% alumina coefficient
3
HA17723/F/P
Electrical Characteristics (Ta = 25°C)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Line regulation
δVO Line
—
0.01
0.1
%
VIN = 12 to 15V
—
0.1
0.5
%
VIN = 12 to 40V
—
—
0.4
%
VIN = 12 to 15V,
TA = –20 to +75°C
—
—
0.3
%
VIN = 12 to 15V,
Ta = 0 to +70°C
—
0.03
0.2
%
I OUT = 1 to 50mA
—
—
0.7
%
VIN = 12 to 15V,
TA = –20 to +75°C
—
—
0.6
%
I OUT = 1 to 50mA,
Ta = 0 to +70°C
—
74
—
dB
f = 50Hz to
10kHz
—
86
—
—
0.003
0.018
%/°C
TA = –20 to +75°C
—
0.003
0.015
%/°C
Ta = 0 to +70°C
δVO Load
Load regulation
Ripple rejection
RREJ
Average temperature
coefficient of output voltage
δVO/δT
CREF = 0
CREF = 5µF
Reference voltage
VREF
6.80
7.15
7.50
V
VIN = VCC = VC = 12V,
VEE = 0
Standby current
I ST
—
—
4.0
mA
VIN = 30V, IL = 0
Short circuit current limit
I SC
—
65
—
mA
RSC = 10Ω, VOUT = 0
Electrical Characteristics Measuring Circuit
VIN
VCC
R1
CREF
R2
VREF
VC
VOUT
CL
CS
VIN(+)
VIN(+)
VEE COMP
VIN = VCC = VC = 12V, VEE = 0, VOUT = 5.0V, IL = 1mA,
RSC = 0, C1 = 100pF, CREF = 0, R2 ≈ 5kΩ, R3 = R1R2/(R1+R2)
4
RSC
R3
C1
VOUT
HA17723/F/P
HA17723 Applications
Fixed Voltage Source in Series
Low Voltage (2 to 7 V) Regulator: Figure 1 shows the construction of a basic low voltage regulator. The
divider (resistors R1 and R2 ) from VREF makes the reference voltage, which will be provided to the
noninverted input of the error amplifier, less than output voltage. In the fixed voltage source where the
output voltage will be fed back to the error amplifier directly as shown in figure 1. Output voltage will be
divided VREF since the output voltage is equal to the reference voltage.
Thus, the output voltage VOUT is:
VOUT = nVREF, n =
R2
R1 + R2
VIN
VCC
VC
VREF
VOUT
R1
2.15kΩ
CREF
1µF
R2
4.99kΩ
CL
RSC = 0
VOUT
CS
VIN(+) VIN(–)
VEE
R3 1.5kΩ
C1
COMP 100pF
Figure 1 Low Voltage (2 to 7 V) Regulator
High Voltage (7 to 37 V) Regulator: Figure 2 shows the construction of a regulator whose output voltage
is higher than the reference voltage, VREF. VREF is added to the non-inverted input of the error amplifier via
a resistor, R3. The feedback voltage is produced by dividing the output voltage with resistors R1 and R2.
Thus, the output voltage VOUT is:
VOUT =
VREF
R2
, n=
n
R1 + R2
VIN
VCC
VREF
R3
3.8kΩ
VIN(+)
VEE
VC
VOUT
CL
CS
VIN(–)
COMP
RSC = 0
VOUT
R1
7.87kΩ
R2
C1
100pF 7.15kΩ
Figure 2 High Voltage (7 to 37 V) Regulator
5
HA17723/F/P
Negative Voltage Regulator: Figure 3 shows the construction of a so-called negative voltage regulator,
which generates a negative output voltage with regard to GND. Assume that the output voltage, –VOUT,
increases in the negative direction. As the voltage across the R 1 is larger than that across the R3, which
provides the reference voltage, the output current of the error amplifier increases. In the control circuit, the
impedance decreases with the increase of input current, which makes the base current of the external
transistor Q approach GND. As a result, the output voltage returns to the established value and output
voltage is stable.
The output voltage –VOUT of this circuit is:
R1 + R2 R3
×
V
R3 + R4 R1 REF
(R1 + R2) · (R3 + R4)
R3
=–
V
×
R2 · (R3 + R4) – R4 · (R1 + R2) R3 + R4 REF
–VOUT = –
R2
11.5kΩ
VCC
VIN
VC
VREF
VOUT
R5
2kΩ
Q
VZ
R4
3kΩ
CL
CS
VIN(+) VIN(–)
R3
R1
3kΩ 3.65kΩ
C1
COMP 100pF
VEE
VOUT
Figure 3 Negative Voltage Regulator
How to Increase the Output Current: To increase the output current, you must increase the current
capacity of the control circuit. Figures 4 and 5 show examples with external transistors.
VIN
VCC
VREF
VC
VOUT
CL
CS
VIN(+)
VEE
VIN(–)
Q
RSC
0.7Ω
VOUT
R1
7.87kΩ
R2
C1
500pF
7.15kΩ
COMP
Figure 4 Increasing Output Current (1)
6
HA17723/F/P
VIN
VCC
VC
VREF
R3
60Ω
Q
VOUT
CL
R1
2.15kΩ
RSC
0.4Ω
CS
VIN(+) VIN(–)
R2
5.0kΩ
VOUT
VEE COMP C1
1nF
Figure 5 Increasing Output Current (2)
Fixed Voltage Source in Parallel Control
Figure 6 shows the circuit of a fixed voltage source in parallel control.
VIN
VCC
VREF
R1
2kΩ
R2
5kΩ
R4
100Ω
VC
VOUT
VZ
CL
R3
VOUT
Q1
100Ω
CS
VIN(–)
VEE COMP
C1
5nF
Figure 6 Fixed Voltage Source in Shunt Regulator
Switching Regulator
Figure 7 shows a switching regulator circuit. The error amplifier, control circuit, and forward feedback
circuit R4 and R3 operate in together as a comparator, and make the external transistors Q1 and Q 2 to turn
on/off. In this circuit, the self-oscillation stabilizes the output voltage and the change in output is absorbed
by the changes of the switches conducting period.
Figures 8 and 9 show a negative voltage switching regulator circuit and its characteristics.
7
HA17723/F/P
VIN
VCC VC
R5 100Ω
3kΩ
Q1
VREF VOUT
R1
2.15kΩ
CL
CS
Q2
D1
R6
51Ω
C2
100µF
R3
C1
0.1µF
R2
L1
1.2mH
VOUT
5V
VIN(+)VIN(–)
1kΩ
R4 VEE COMP
5kΩ 1MΩ
Figure 7 Positive Voltage Switching Regulator
VIN
R2
4kΩ
C1
0.1µF
R3 1kΩ
VCC VC
VREF
VOUT
VZ
CL
CS
100Ω
Q2
R7 R5
1kΩ R6
220Ω
VIN(+) VIN(–)
R4
R1
C1 15pF
V
3.65kΩ 1MΩ EE COMP
Q1
D1
L1
1.2mH
VOUT
C –15V
2
100µF
Figure 8 Negative Voltage Switching Regulator
8
HA17723/F/P
Input – Output Characteristics
Output Voltage VOUT (V)
–24
–20
Ta = 25°C
–16
–12
–8
–4
–4
–8
–12
–16 –20 –24 –28
Input Voltage VIN (V)
–32
–36
–40
Line Regulation
–15.360
IOUT = 0.2A
Ta = –25°C
Output Voltage VOUT (V)
–15.340
–15.320
25
–15.300
–15.280
75
–15.260
–15.240
–24
–28
–32
–36
Input Voltage VIN (V)
–40
Output Voltage VOUT (V)
Load Regulation
–15.600
VIN = 25 V
–15.500
–15.400
Ta = –25°C
–15.300
25
75
–15.200
–15.100
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Output Current IOUT (A)
Figure 9 Negative Voltage Switching Regulator Operating Characteristics
9
HA17723/F/P
Floating-Type Fixed Voltage Source
Voltage sources of the floating type or boost type are typically employed when high voltage output is
required. Figure 10 shows the circuit of a floating-type fixed voltage source. Considering the stabilization
in this circuit, assume that the output voltage increases. At the input terminal of the error amplifier the noninverted input will become low compared with the inverted input, and the output current of the error
amplifier decreases. Then, the current from the terminal VZ in the control circuit decreases. As a result the
base current of the external resistor Q1 will decrease and collector current will decrease, controlling
increase of the output voltage.
The output voltage VOUT in the circuit in figure 10
VOUT =
R1 + R2 R4
×
– 1 VREF
R3 + R4 R1
Figure 11 is the circuit diagram of a negative fixed voltage source in floating type.
VCC
VC
VREF
R4
3.0kΩ
R1
3.57kΩ
D 12 V
HZ12 H
VIN
R5 6.2kΩ
2.0W
VOUT
VZ
Q
CL
RSC
1Ω
CS
VIN(+) VIN(–)
R2
53.7kΩ
R3
3.0kΩ
VEE
C1
COMP 1nF
VOUT
Figure 10 Positive Voltage Floating Regulator
R5
VIN
10kΩ
R2
97.6kΩ
R1
3.57kΩ
D12 V
HZ12 H
R3
3kΩ
VCC
VC
VREF VOUT
VZ
R6
10kΩ
Q
CL
CS
VIN(+) VIN(–)
R4
3kΩ VEE COMP
C1
100pF
VOUT
Figure 11 Negative Voltage Floating Regulator
10
HA17723/F/P
Fixed Voltage Source with Reduction Type Current Limiter
VIN
VCC
VREF
R2
2.15kΩ
VC
VOUT
CL
CS
VIN(+) VIN(–)
R1
5.0kΩ VEE COMP
RSC 30Ω
R3
2.7kΩ
R4
5.6kΩ
VOUT
C1
1nF
Figure 12 Fixed Voltage Source with Reduction Type Current Limiter
6.0
Output Voltage VOUT (V)
5.0
VO
IOP
R3 + R4
⋅ VBE
R4 ⋅ RSC
4.0
IOS =
3.0
IOP = IOS +
R3
⋅ VO
R4 ⋅ RSC
2.0
1.0
0
0 IOS
100
Output Current IOUT (mA)
200
Figure 13 Current Control Characteristics of Fixed Voltage Source
with Reduction Type Current Limiter
11
HA17723/F/P
Fixed Voltage Source Switching External Control
VIN
VCC
VREF
R1
2.15kΩ
VC
VOUT
RSC
5Ω
CL
VOUT
Note
Note: Insert when
VOUT ≥ 10V
CS
VIN(+) VIN(–)
R3 2SC458 K
R2
VEE COMP
R4
4.99kΩ
C1 2kΩ T1
2kΩ
1nF
Control Signal
Figure 14 Fixed Voltage Source Switching External Control
6
Output Voltage VOUT (V)
Ta = 25°C
5
4
3
2
1
0
0
4
8
12
16 20 24
Time (sec)
28
32
36
40
Figure 15 Operating Characteristics of Fixed Voltage Source Switching External Control
12
HA17723/F/P
Characteristic Curves
Load Regulation vs. Output Current-1
VOUT = +5V
VIN = +12V
RSC = 0
Ta = 75°C
0.1
25
–20
0
20
40
60
Output Current IOUT
0.2
Load Regulation δVO Load (%)
Load Regulation δVO Load (%)
0.2
80
100
Relative Output Voltage vs. Output Current
1.0
0.8
Ta = 75°C 25 –20
0.6
0.4
0.2
0
20
40
60
80
100
Output Current IOUT (mA)
120
0.1
Ta = 75°C
25
–20
5
Stand-by Current IST (mA)
Relative Output Voltage (V/V)
VOUT = +5V
VIN = +12V
RSC = 10Ω
VOUT = +5V
VIN = –12V
RSC = 10Ω
0
1.2
Load Regulation vs. Output Current-2
10
20
Output Current IOUT (mA)
30
Stand-by Current vs. Input Voltage
VOUT = VREF
IOUT = 0
4
Ta = –20°C
3
25
75
2
1
0
10
20
30
Input Voltage VIN (V)
40
50
13
HA17723/F/P
Line Regulation vs.
Input/Output Voltage Differential-1
Line Regulation vs.
Input/Output Voltage Differential-2
0.2
0.1
VOUT = +5V
RSC = 0
IOUT = 1mA to
50mA
0.1
0
–5
5
15
25
35
45
Input/Output Voltage Differential Vdiff(IN-O) (V)
0
–5
5
15
25
35
45
Input/Output Voltage Differential Vdiff(IN-O) (V)
Current Limiting Characteristics
Line Transient Response
200
0.7
Sense Voltage
150
0.6
0.5
0.4
100
Limit Current
RSC = 5Ω
0.3
50
0.2
RSC = 10Ω
Limit Current ISC (mA)
Sense Voltage VSC (V)
0.8
Output Voltage Differential VO (dev) (mV)
0.9
Input Voltage
0
10
Output Voltage
14
0
100
Junction Temperature Tj(°C)
200
–2
5
–4
0
–5
–10
0.1
–100
6
VIN = +12V
VOUT = +5V 4
IOUT = 1mA
2
RSC = 0
5µs/div
Time (µs)
Input Voltage Differential VIN (dev) (V)
VOUT = +5V
RSC = 0
IOUT = 1mA
V = +3V
Line Regulation δVO Line (%)
Line Regulation δVO Line (%)
0.2
HA17723/F/P
VIN = +12V
VOUT = +5V 10
IOUT = 40mA
5
RSC = 0
0
Output Voltage
5
0
–5
–10
5µs/div
Time (µs)
–5
Output Impedance vs. Frequency
10
Output Impedance Zout (Ω)
Output Current
Output Current Differential IO (dev) (mA)
Output Voltage Differential VO (dev) (mV)
Load Transient Response
1.0
VOUT = 5V
VIN = +12V
RSC = 0
IL = 50mA
CL = 0
CL = 1µF
0.1
100
1k
10 k
100 k
Frequency f (Hz)
1M
15
HA17723/F/P
Package Dimensions
Unit: mm
19.20
20.32 Max
8
6.30
7.40 Max
14
1.30
7
2.54 ± 0.25
0.48 ± 0.10
0.51 Min
2.39 Max
7.62
2.54 Min 5.06 Max
1
+ 0.10
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
DP-14
Conforms
Conforms
0.97 g
Unit: mm
10.06
10.5 Max
8
5.5
14
1
0.10 ± 0.10
1.42 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
7
+ 0.20
7.80 – 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
16
Hitachi Code
JEDEC
EIAJ
Mass (reference value)
FP-14DA
—
Conforms
0.23 g
HA17723/F/P
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
Hitachi, Ltd.
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Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
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For further information write to:
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Copyright ' Hitachi, Ltd., 1998. All rights reserved. Printed in Japan.
17