AS78XX [BCDSEMI]

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR; 3端子1A正电压稳压器


型号：	AS78XX
厂家：	BCD SEMICONDUCTOR MANUFACTURING LIMITED
描述：	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR 3端子1A正电压稳压器稳压器
文件：	总14页 (文件大小：160K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

General Description

Features

Output Current up to 1A

The AS78XX series are three terminal positive regula-

tors designed for a wide variety of applications includ-

ing local, on-card regulation.

Fixed Output Voltages of 5V, 12V and 15V

Output Voltage Accuracy of ±4% over the Full

Temperature Range

The AS78XX are complete with internal current limit-

ing, thermal shutdown protection, and safe-area com-

pensation which make them virtually immune from

output overload. If adequate heat sinking are provided,

these regulators can deliver output currents up to 1A.

Internal Short Circuit Current Limiting

Internal Thermal Overload Protection

No External Components

Output Transistor Safe-area Protection

Applications

The AS78XX are available in TO-220-3 and TO-252-2

packages.

High Efficiency Linear Regulator

Post Regulation for Switching Supply

Microprocessor Power Supply

Mother Board

TO-220-3

TO-252-2

Figure 1. Package Types of AS78XX

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Pin Configuration

T Package

(TO-220-3)

D Package

(TO-252-2)

OUTPUT

GND

OUTPUT

GND

INPUT

Figure 2. Pin Configuration of AS78XX (Top View)

Pin Description

Pin Number

Pin Name

Function

INPUT

GND

Voltage Input

Ground

OUTPUT

Voltage Output

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Functional Block Diagram

INPUT

Zener

Q14

R16

Q21

Q24

R20

R21

Q18

R12

R17

R18

R23

OUTPUT

Q10

Q11

Q22

Q16

R14

R15

R11

Q23

Q13

Q15

R19

Q19

Q17

Q20

Q12

R13

R10

GND

Figure 3. Functional Block Diagram of AS78XX

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Ordering Information

AS78XX

E1: Lead Free

Circuit Type

TR: Tape and Reel

Blank: Tube

Output Voltage

05: 5V

12: 12V

Package

T: TO-220-3

D: TO-252-2

15: 15V

Part Number

Marking ID

Temperature

Package

Packing Type

Range

Tin Lead

Lead Free

Tin Lead

Lead Free

AS7805T-E1

AS7812T-E1

AS7815T-E1

AS7805D-E1

AS7812D-E1

AS7815D-E1

AS7805T-E1

AS7812T-E1

AS7815T-E1

AS7805D-E1

Tube

-40 to 125^oC

TO-220-3

Tube

AS7805DTR-E1

AS7812D-E1

Tape & Reel

Tube

-40 to 125^oC

TO-252-2

AS7812DTR-E1

AS7815D-E1

Tape & Reel

Tube

AS7815DTR-E1

Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Absolute Maximum Ratings (Note 1)

Parameter

Symbol

V_IN

Value

Unit

Input Voltage

260

^oC

T_LEAD

P_D

Lead Temperature (Soldering, 10sec)

Power Dissipation

Internally Limited

-65 to 150

400

^oC

T_STG

Storage Temperature Range

ESD (Machine Model)

ESD

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to

the device. These are stress ratings only, and functional operation of the device at these or any other conditions

beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-

imum Ratings" for extended periods may affect device reliability.

Recommended Operating Conditions

Parameter

Symbol

Min

Max

Unit

^oC

T_J

Operating Junction Temperature Range

-40

125

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Electrical Characteristics

AS7805 (V =10V, I

=1A, T =-40 to 125 C, unless otherwise specified.)

OUT

Parameter

Symbol

Conditions

Min Typ Max Unit

T_J=25^oC

_OUT=5mA to 1A, V_IN=7.5V to 20V,

4.9

5.1

V_OUT

Output Voltage

4.8

5.2

P_D≤15W

V_IN=7.5 to 20V, I_OUT=1A, T_J=25^oC

V_IN=10V, I_OUT=5mA to 1A, T_J=25^oC

V_IN=10V

V_RLINE

V_RLOAD

I_Q

Line Regulation

Load Regulation

Quiescent Current

100

3.2

0.3

0.08

V_IN=8 to 25V, I_OUT=500mA, T_J=25^oC

I_OUT=5mA to 1A, T_J=25^oC

0.8

0.5

∆I_Q

Quiescent Current Change

V_IN=8 to 18V, f=120Hz, I_OUT=500mA

Ripple Rejection

PSRR

V_DROP

N_O

∆V_OUT=1%, I_OUT=1A, T_J=25^oC

f=10Hz to 100kHz, T_A=25^oC

Dropout Voltage

µV/V_O

mΩ

Output Noise Voltage

Output Resistance

Short Circuit Current

Peak Output Current

R_O

f=1kHz

V_IN=35V, T_A=25^oC

V_IN=10V, T_J=25^oC

0.2

2.2

0.4

I_PK

mV/^oC

ppm/^oC

∆V_OUT/∆T

Output Voltage

Temperature Coefficient

(∆V_OUT/V_OUT)/∆T

AS7812 (V =19V, I

=1A, T =-40 to 125 C, unless otherwise specified.)

OUT

Parameter

Symbol

Conditions

Min Typ Max Unit

T_J=25^oC

11.75

12.25

V_OUT

Output Voltage

I_OUT=5mA to 1A, V_IN=14.8V to 27V,

11.5

12.5

P_D≤15W

V_IN=14.8 to 27V, I_OUT=1A, T_J=25^oC

V_IN=19V, I_OUT=5mA to 1A, T_J=25^oC

V_IN=19V

V_RLINE

V_RLOAD

I_Q

Line Regulation

Load Regulation

Quiescent Current

120

100

3.4

0.3

0.08

V_IN=15 to 30V, I_OUT=500mA, T_J=25^oC

I_OUT=5mA to 1A, T_J=25^oC

0.8

0.5

∆I_Q

Quiescent Current Change

V_IN=15 to 25V, f=120Hz, I_OUT=500mA

Ripple Rejection

PSRR

V_DROP

N_O

∆V_OUT=1%, I_OUT=1A, T_J=25^oC

f=10Hz to 100kHz, T_A=25^oC

Dropout Voltage

µV/V_O

mΩ

Output Noise Voltage

Output Resistance

Short Circuit Current

Peak Output Current

R_O

f=1kHz

V_IN=35V, T_A=25^oC

V_IN=19V, T_J=25^oC

0.2

2.2

0.96

I_PK

mV/^oC

ppm/^oC

∆V_OUT/∆T

Output Voltage

Temperature Coefficient

(∆V_OUT/V_OUT)/∆T

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Electrical Characteristics (Continued)

AS7815 (V =23V, I

=1A, T =-40 to 125 C, unless otherwise specified.)

OUT

Parameter

Symbol

Conditions

Min Typ Max Unit

T_J=25^oC

_OUT=5mA to 1A, V_IN=17.9 to 30V,

14.7

15.3

V_OUT

Output Voltage

14.4

15.6

P_D≤15W

V_IN=17.9 to 30V, I_OUT=1A, T_J=25^oC

V_IN=22V, I_OUT=5mA to 1A, T_J=25^oC

V_IN=23V

V_RLINE

V_RLOAD

I_Q

Line Regulation

Load Regulation

Quiescent Current

150

100

3.4

0.3

V_IN=17.5 to 30V, I_OUT=500mA, T_J=25^oC

I_OUT=5mA to 1A, T_J=25^oC

0.8

∆I_Q

Quiescent Current Change

Ripple Rejection

0.08 0.5

V_IN=18.5 to 28.5V, f=120Hz,

PSRR

I_OUT=500mA

∆V_OUT=1%, I_OUT=1A, T_J=25^oC

f=10Hz to 100kHz, T_A=25^oC

V_DROP

N_O

Dropout Voltage

µV/V_O

mΩ

Output Noise Voltage

Output Resistance

Short Circuit Current

Peak Output Current

0.2

2.2

1.2

R_O

f=1kHz

V_IN=35V, T_A=25^oC

V_IN=23V, T_J=25^oC

I_PK

mV/^oC

ppm/^oC

∆V_OUT/∆T

Output Voltage

Temperature Coefficient

(∆V_OUT/V_OUT)/∆T

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Typical Performance Characteristics

5.050

5.025

5.000

4.975

4.950

4.925

4.900

4.875

4.850

2.5

2.0

1.5

1.0

0.5

0.0

AS7805

T_C= -40^oC

AS7805

V_IN=10V

T_C= 25^oC

T_C= 125^oC

I_OUT=10mA

-40

-20

100

120

V_IN-V_OUT(V)

Case Temperature (^oC)

Figure 4. Peak Output Current vs. Input/Output

Differential Voltage

Figure 5. Output Voltage vs. Case Temperature

100

I_OUT=0

AS7805

AS7805 V_IN=10V

AS7812 V_IN=19V

AS7815 V_IN=23V

100

10k

100k

-40

-20

100

120

Case Temperature (^oC)

Frequency (Hz)

Figure 7. Ripple Rejection vs. Frequency

Figure 6. Quiescent Current vs. Case Temperature

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Typical Performance Characteristics (Continued)

2.5

2.0

1.5

1.0

0.5

0.0

AS7805

Package: TO-220-3

Heatsink Size: 45*43 mm²

I_OUT=100mA

I_OUT=500mA

I_OUT=1A

-40

-20

100

120

-40

-20

100

120

Case Temperature (^oC)

Figure 9. Power Dissipation vs. Case Temperature

Figure 8. Dropout Voltage vs. Case Temperature

AS7805

Package: TO-252-3

Heatsink Size: 45*43 mm²

-50

-40

-20

100

120

Case Temperature (^oC)

Time (100µs/Div)

Figure 10. Power Dissipation vs. Case Temperature

Figure 11. Line Transient

(Conditions: I_OUT=500mA, C_IN=0.33µF, C_OUT=0.1µF)

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Typical Performance Characteristics (Continued)

AS7805

0.005A

100

Time (40µs/Div)

Figure 12. Load Transient

(Conditions: V_IN=10V, C_IN=0.33µF, C_OUT=0.1µF)

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Typical Application

AS78XX

V_IN

V_OUT

INPUT

OUTPUT

GND

0.33µF

0.1µF

Figure 13. Fixed Output Regulator of AS78XX

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Mechanical Dimensions

TO-220-3

Unit: mm(inch)

9.660(0.380)

2.580(0.102)

3.380(0.133)

10.660(0.420)

φ3.560(0.140)

4.060(0.160)

0.550(0.022)

1.350(0.053)

0.200(0.008)

φ1.500(0.059)

3.560(0.140)

4.820(0.190)

2.080(0.082)

2.880(0.113)

7°

0.381(0.015)

1.160(0.046)

1.760(0.069)

60°

0.813(0.032)

8.763(0.345)

0.381(0.015)

2.540(0.100)

0.356(0.014)

0.406(0.016)

2.540(0.100)

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

AS78XX

Mechanical Dimensions (Continued)

TO-252-2

Unit: mm(inch)

6.380(0.251)

6.680(0.263)

2.180(0.086)

2.380(0.094)

5.230(0.206)

5.430(0.214)

0.460(0.018)

0.400(0.016)

×45°

0.580(0.023)

1.080(0.043)

1.320(0.052)

8°

0.480(0.019)

0.540(0.021)

0.020(0.001)

0.120(0.005)

5°

0.750(0.030)

0.850(0.033)

0.600(0.024)

0.640(0.025)

0.780(0.031)

2.240(0.088)

2.340(0.092)

1°

7°

2.240(0.088)

2.340(0.092)

0.510(0.020)

2.90°

3.10°

2.90°

3.10°

Mar. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

http://www.bcdsemi.com

IMPORTANT NOTICE

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-

cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any

particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use

of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or

other rights nor the rights of others.

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AS78XX [BCDSEMI]

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