Datasheet UPC305G2, UPC305C Datasheet (NEC)

DATA SHEET

BIPOLAR ANALOG INTEGRATED CI RCUT

µµµµ

PC305

POSITIVE VOLTAGE STABILIZED POWER SUPPLY

DESCRIPTION

The µPC305 is a high-performance stabilized power supply that can supply a constant voltage in a wide temperature range even if the input voltage or load voltage fluctuates, by integrating a high-gain error amplifier and a temperature-compensating constant-voltage diode on a single chip.

FEATURES PIN CONFIGURATION (Top View)

Wide output voltage variable range Vo: 4.5 to 30 V, V

•

Excellent load stability 0.02%

•

Good ripple rejection ratio 0.003%/V

•

DIF

: 3 to 30 V

Current limiter

Current output

Input GND

µ

PC305C, 305G2

1 2 3 4

8 7 6 5

Output Compensation Error detection Reference voltage

ORDERING INFORMATION

Part Number Package

PC305C 8-pin plastic DIP (7.62 mm (300))

µ

PC305G2 8-pin plastic SOP (5.72 mm (225))

µ

EQUIVALENT CIRCUIT

R

7

2.8 kΩ

Q

11

12

Q

13

Q

10

Q

9

Q

7

6

Q

8

R

4

1

D

3 kΩ

R

3

6.8 k

Ω

R

3 kΩ

2

Q

1

Q

18

R

4.4 kΩ Q

Q

4

2

Q

1

C 5 pF

R

5

2.2 kΩ

1.86 kΩ

6

Q

5

Q

3

Input

R

9

R

1.32 kΩ

600 Ω

Q

15

Q

14

R

8

Q

16

Q

17

3

10

Current output

2

Current limiter

1

Output

8

Compensation

7

Error detection

6

Reference voltage

5

GND

4

The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.

Document No. G10633EJ3V0DS00 (3rd edition) Date Published December 1999 N CP(K) Printed in Japan

©

1999

µµµµ

PC305

ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, TA = 25

Parameter Symbol Input Voltage V Input − Output Voltage Difference V Maximum Output Current I Total Loss P Operating Temperature T Storage Temperature T

A

Notes 1.

Where T Where TA > +25°C, perform derating at TJ MAX. 125°C, −4.4 mW/°C.

2.

> +55°C, perform derating at TJ MAX. 125°C, −5 mW/°C.

IN

DIF

O

T

A

stg

PC305C

µ

350

Note 1

0.3 to +40 V

−

40 V 50 mA

0 to +70

55 to +125

−

C)

°°°°

PC305G2 Unit

µ

Note 2

440

mW

C

°

C

°

Caution If any of the parameters exceeds the absolute maximum ratings, even momentarily, the quality of

the product may be impaired. The absolute maximum ratings are values that may physically damage the product(s). Be sure to use the product(s) within the ratings.

ELECTRICAL SPECIFICATIONS (Unless otherwise specified, TA = 25

Parameter Symbol Condition MIN. TYP. MAX. Unit Input Voltage Range V Output Voltage Range V Input − Output Voltage Difference V Load Stability REG

Ripple Rejection Ratio REJ C Temperature Stability 0°C ≤ TA ≤ 70°C0.31.0% Reference Voltage V

Long-time Stability 0.1 % Supply Current under No Load I

IN

OUT

DIF

L

0 ≤ IO ≤ 12 mA, RSC = 18

IN

REF

N

CC

OUT

VIN – V VIN – V

≤ 5 V 0.025 0.06 %/VInput Stability REG

OUT

> 5 V 0.015 0.03 %/V

REF

= 10 µF, f = 120 Hz 0.003 %/V

10 Hz ≤ f ≤ 10 kHz, C

REF

C

= 0.1 µF 0.002 %

VIN = 40 V 1.0 2.0 mA

REF

Ω

= 0 µF 0.005 %Output Noise Voltage V

C)

°°°°

8.0 40 V

4.5 30 V

3.0 30 V

0.02 0.05 %

1.65 1.8 1.90 V

Remark

2

SC

: Current-limiting resistor

R

REF

C

: Bypass capacitor of reference voltage pin

Data Sheet G10633EJ3V0DS00

STANDARD CHARACTERISTIC CURVES

= 25

(Unless otherwise specified, T

A

C. Reference values)

°°°°

µµµµ

PC305

500

400

300

[mW]

T

200

Total Loss P

100

0

−0.02

−0.04

PT vs TA Characteristics

µ

PC305G

µ

PC305C

Operating Temperature TA [°C]

Load Stability (2)

TA = 0°C

TA = 25°C

Load Stability (1)

0

−0.01

−0.02

−0.03

Output Voltage Fluctuation (%)

−0.04

100

RSC = 0 Ω

0100806040200 51015

80

60

TA = 0°C

Output Current I

Current-limiting Characteristics

TA = +70°C

A

= +70°C

T

TA = −20°C

O

(mA)

TA = 0°C

TA = 25°C

−0.06

Outout Voltage Fluctuation (%)

−0.08

−0.1

0 102030

3.0

2.8

2.6

Resistance (kΩ)

2

2.4

R

2.2

2.0 51020

TA = +70°C

RSC = 13 Ω

Output Current I

Resistance for Setting Output Voltage

Output Voltage (V)

O

(mA)

R1//R2 = 2 kΩ

R1 = 1110×V

R

2

TA = −20°C

Output Voltage Drop Ratio (%)

40

OUT

(Ω)

Pickup Voltage Across Pins <1> and <8> (V)

50 0806020

TA = −20°C

40

20

RSC = 13 Ω

0

050

0.63.2

0.5

0.4

0.3

0.2

10 20 30 40

Output Current I

Current-limiting Pickup Voltage

Operating Temperature T

40

O

(mA)

A

(°C)

Data Sheet G10633EJ3V0DS00

3

µµµµ

PC305

Line Regulation

0.1

0.05

0.02

0.01

0.005

ref

= 10 F

f≤120 Hz

µ

520

0.002

Output Voltage Fuctuation Ratio (%)

0.001

C

1102

Input - Output Voltage Difference V

APPLICATION CIRCUIT EXAMPLES

5 V-15 mA Regulator

V

OUT A

= 25°C

T

C

ref

= 10 V

= 0 F

DIF

(V)

Transient Response Time

40

0

µ

−40

LINE

CL = 0 CL = 1 F

LOAD

µ

50

400

0

Output Voltage Fluctuation (mV)

−400 01020

Response Time ( s)

V

OUT

µ

RSC = 10 Ω

IN

= 5 V

∆V

= 10 V

RSC = 10 Ω

FL

= 20 mA

I

NL

= 1.0 mA

I

OUT

= 10 V

V

30

10 V-200 mA Regulator (Drooping Characteristics)

R3 13 Ω

8

1

47 pF

V

IN

≥ 8 V

1

2

3

C

3

µ

0.01 F

C

7

6

3.1 kΩ

5

4

C 10 F

REF

1

R

5.6 kΩ

R

2

µ

15 V-1A Regulator (Fold-back Characteristics)

R

3

1.3 Ω 2 W

+

C

−

2SD297

IN

≥ 19 V

V

4

1 F

µ

R

6

2SB505

C

3

µ

0.1 F

R

130 Ω

3

110 Ω

1

2

3

R

5

1.2 kΩ

C

1

47 pF

8

7

R

16.7 kΩ

6

5

4

C

REF

10 F

µ

R

2.3 kΩ

+

−

C

2

µ

1 F

V

O

= 5 V

V

IN

2SB505

≥ 13 V

R3 1.3 Ω 0.5 W

1

2

3

C

3

µ

0.01 F

1

47 pF

C

8

7

5

4

6

C

REF

10 F

µ

R

1

11.2 kΩ2.45 kΩ

R

2

+

C

−

3.3 F

V

O

= 10 V

2

µ

1A Constant-current Regulator

IN

O

= 15 V

V

1

+

C

2

−

µ

50 F

2

8

1

2

3

4

680 Ω

7

C 47 pF

6

5

2SD79

R

4

1

R

3

R

2

68 Ω

2 kΩ

R

1

1.8 Ω 2W

Load

V

2SD73

Caution Note the power consumption of the

external transistor.

4

PC305 when the output pin is short-circuited and that of the

µµµµ

Data Sheet G10633EJ3V0DS00

PACKAGE DRAWINGS

8-PIN PLASTIC DIP (7.62mm(300))

85

14

A

J

I

µµµµ

PC305

K

P

L

H

G

C

B

F

DN

NOTES

1. Each lead centerline is located within 0.25 mm of its true position (T.P.) at maximum material condition.

2. ltem "K" to center of leads when formed parallel.

M

R

ITEM MILLIMETERS

A 10.16 MAX. B 1.27 MAX. C 2.54 (T.P.) D 0.50±0.10 F 1.4 MIN. G 3.2±0.3 H 0.51 MIN.

I 4.31 MAX.

J 5.08 MAX. K 7.62 (T.P.) L 6.4

M 0.25 N 0.25

P 0.9 MIN. R0∼15°

+0.10

−0.05

P8C-100-300B,C-2

Data Sheet G10633EJ3V0DS00

5

8-PIN PLASTIC SOP (5.72 mm (225))

85

detail of lead end

P

µµµµ

PC305

1

4

A

F

G

S

B

C

D

M

E

NOTE

Each lead centerline is located within 0.12 mm of its true position (T.P.) at maximum material condition.

H

I

J

L

K

ITEM

A 5.2 B

C D

E F

G

H

I

J K L

M

N P

SN

MILLIMETERS

+0.17

−0.20

0.78 MAX.

1.27 (T.P.) +0.08

0.42

−0.07

0.1±0.1

1.59±0.21

1.49

6.5±0.3

4.4±0.15

1.1±0.2 +0.08

0.17

−0.07

0.6±0.2

0.12

0.10

+7°

3°

−3°

S8GM-50-225B-6

6

Data Sheet G10633EJ3V0DS00

µµµµ

PC305

RECOMMENDED SOLDERING CONDITIONS

Solder this product under the following recommended conditions. For details of the recommended soldering conditions, refer to information document

Mounting Technology Manual (C10535E)

.

For soldering methods and conditions other than those recommended, consult NEC.

Surface Mount Type

PC305G2: 8-pin plastic SOP (5.72 mm (225))

µµµµ

Soldering Method Soldering Conditions Recommended

Semiconductor Device

Conditions Symbol

Infrared reflow Package peak temperature: 230°C, Time: 30 sec max. (210°C min.),

Number of times: once

VPS Package peak temperature: 215°C, Time: 40 sec max. (200°C min.),

Number of times: once

Wave soldering Solder bath temperature: 260°C max., Time: 10 sec max., Number of times: once,

Preheating temperature: 120°C max. (Package surface temperature)

IR30-00-1

VP15-00-1

WS60-00-1

Caution Do not use two or more soldering methods in combination (except partial heating).

Through Hole type

PC305C: 8-pin plastic DIP (7.62 mm (300))

µµµµ

Soldering Method Soldering Conditions Recommended

Conditions Symbol

Wave soldering Solder bath temperature: 260°C max., Time: 10 sec max.

Data Sheet G10633EJ3V0DS00

7

µµµµ

PC305

• The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.

• No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document.

• NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others.

• Descriptions of circuits, software, and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software, and information in the design of the customer's equipment shall be done under the full responsibility of the customer. NEC Corporation assumes no responsibility for any losses incurred by the customer or third parties arising from the use of these circuits, software, and information.

• While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features.

• NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance.

M7 98. 8