SG117AHVIG-883B [MICROSEMI]

1.5A Three Terminal Adj. Voltage Regulator;


型号：	SG117AHVIG-883B
厂家：	Microsemi
描述：	1.5A Three Terminal Adj. Voltage Regulator
文件：	总13页 (文件大小：455K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SG117AHV/SG117HV Series

1.5A Three Terminal Adj. Voltage Regulator

Features

Description

Adjustable Output Down to 1.25V

1% Output Voltage Tolerance

0.01%/V Line Regulation

0.3% Load Regulation

The SG117HV and SG117AHV are 3-terminal positive

adjustable voltage regulators which offer a higher input

voltage range. They are capable of supplying in excess

of 0.5A or 1.5A over an output voltage range of 1.25V

to 57V, utilizing an input supply voltage up to 60V. A

major feature of the SG117AHV is a reference voltage

tolerance guaranteed within ± 1%, allowing an overall

power supply tolerance to be better than 3% using

inexpensive 1% resistors. Line and load regulation

performance has been improved as well.

Min. 1.5A Output Current

Typical 80dB Ripple Rejection

Available in Hermetic TO-257

High Reliability Features –

Moreover, the SG117AHV reference voltage is

guaranteed not to exceed 2% when operating over the

full load, line and power dissipation conditions. The

SG117AHV adjustable regulators offer an improved

solution for all positive voltage regulator requirements

with load currents up to 1.5A.

SG117HV

Available to MIL-STD-883

MSC-AMSG level "S" Processing Available

Available to DSCC

– Standard Microcircuit Drawing (SMD)

In addition to replacing many fixed regulators, the

SG117HV/AHV can be used in a variety of other

applications due to its ‘floating’ design as long as the

input-to-output differential maximum is not exceeded,

such as a current source.

Schematic Diagram

Figure 1 · Block Diagram

February 2013 Rev. 1.2

www.microsemi.com

Electrical Characteristics

Connection Diagrams and Ordering Information

Ambient

Temperature

Packaging

Type

Package

Part Number

Connection Diagram

ADJUSTMENT

SG117AHVK-883B

SG117AHVK

SG117HVK-883B

SG117HVK

-55°C to

125°C

3-TERMINAL

METAL CAN

TO-3

V_IN

SG117AHVT-883B

SG117AHVT

V_IN

-55°C to

125°C

3-TERMINAL

METAL CAN

TO-39

ADJUST

V_OUT

SG117HVT-883B

SG117HVT

SG117AHVIG-883B

SG117AHVIG

V_IN

3-Pin

HERMETIC

V_OUT

ADJUST

-55°C to

125°C

HERMETIC

TO-257

Package

(Isolated)

SG117HVIG-883B

SG117HVIG

Case is Isolated

SG117AHVG-883B

SG117AHVG

V_IN

3-Pin

HERMETIC

V_OUT

-55°C to

125°C

HERMETIC

TO-257

ADJUST

SG117HVG-883B

SG117HVG

Package

Case is V_OUT

SG117AHVL-883B

SG117AHVL

N.C.

Ceramic

(LCC)

Leadless

Chip Carrier

N.C.

ADJUST

-55°C to

125°C

20-Pin

Ceramic

N.C.

V_OUTSENSE

V_OUT

SG117HVL-883B

N.C.

SG117HVL

Notes:

1. Contact factory for JAN and DESC part availability.

2. All parts are viewed from the top.

3. For devices with multiple inputs and outputs both must be externally connected together at the device terminals.

4. For normal operation, the SENSE pin must be externally connected to the load.

Figure 2 · Connection Diagrams and Ordering Information

Absolute Maximum Ratings

Parameter

Value

Internally Limited

Units

Power Dissipation

Input to Output Voltage Differential

Operating Junction Temperature

-65 to 150

300

°C

Lead Temperature (Soldering, 10 seconds)

Notes:

Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into,

negative out of specified terminal.

Thermal Data

Parameter

Value

Units

K Package: 3 Terminal TO-3 Metal Can

Thermal Resistance-Junction to Case, θ_JC

Thermal Resistance-Junction to Ambient, θ_JA

T Package: 3-Pin TO-39 Metal Can

°C/W

Thermal Resistance-Junction to Case, θ_JC

Thermal Resistance-Junction to Ambient, θ_JA

IG Package: 3-Pin TO-257 Hermetic (Isolated)

Thermal Resistance-Junction to Case, θ_JC

Thermal Resistance-Junction to Ambient, θ_JA

G Package: 3-Pin TO-257 Hermetic

120

°C/W

3.5

°C/W

Thermal Resistance-Junction to Case, θ_JC

Thermal Resistance-Junction to Ambient, θ_JA

L Package: 20-Pin Ceramic (LCC) Leadless

Thermal Resistance-Junction to Case, θ_JC

Thermal Resistance-Junction to Ambient, θ_JA

3.5

°C/W

120

Notes:

1. Junction Temperature Calculation: T_J= T_A+ (P_Dx θ_JA).

2. The above numbers for θ_JCare maximums for the limiting thermal resistance of the package in a standard mounting

configuration. The θ_JAnumbers are meant to be guidelines for the thermal performance of the device/pcboard system. All of

the above assume no ambient airflow.

Recommended Operating Conditions

Parameter

Value

Units

Input Voltage Range

8 to 40

Operating Ambient Temperature Range

SG117AHV / SG117HV

°C

55 to 125

Note: Range over which the device is functional.

Electrical Characteristics

Unless otherwise specified, these characteristics apply over the full operating ambient temperature for the

SG117AHV / SG117HV with -55°C < T_A< 125°C, V_IN– V_OUT= 5.0V and for I_OUT= 500mA (K, G, and IG) and

I_OUT= 100mA (T, and L packages). Although power dissipation is internally limited, these specifications are

applicable for power dissipations of 2W for the T, and L packages, and 20W for the K, G, and IG packages.

I_MAXis 1.5A for the K, G, and IG packages and 500mA for the T, and L packages. Low duty cycle pulse

testing techniques are used which maintains junction and case temperatures equal to the ambient

temperature.

SG117AHV

Typ

SG117HV

Typ Max

Units

Parameter

Test Condition

Min

Max

Min

Reference Section

Reference Voltage

Output Section

I_OUT= 10mA, T_A= 25°C

1.238 1.250 1.262

1.225 1.250 1.270 1.20

3V < (V_IN– V_OUT) < 60V,

P < P_MAX

10mA < I_OUT< I_MAX

1.25 1.30

3V < (V_IN– V_OUT) < 60V,

I_L= 10mA

Line Regulation

T_A= 25°C

0.005 0.01

0.01 0.02

0.02 0.05

%/V

T_A= T_MINto T_MAX

10mA < I_OUT< I_MAX

V_OUT≤ 5V, T_A= 25°C

V_OUT> 5V, T_A= 25°C

V_OUT≤ 5V

0.01

0.02

0.3

Load Regulation¹

0.1

0.3

0.1

0.3

V_OUT> 5V

Thermal Regulation²

Ripple Rejection

T_A= 25°C, 20ms pulse

V_OUT= 10V, f = 120Hz

C_ADJ= 1µF, T_A= 25°C

C_ADJ= 10µF

0.002 0.02

0.03 0.07 %/W

Minimum Load Current

Current Limit

(V_IN– V_OUT) = 60V

(V_IN– V_OUT) < 15V

K, P, G, IG Packages

T, L Packages

3.5

1.5

0.5

2.2

0.8

1.5

0.5

2.2

0.8

(V_IN– V_OUT) = 60V, T_J= 25°C

K, P, G, IG Packages

T, L Packages

0.3

0.1

0.3

0.1

Temperature Stability²

Long Term Stability²

T_A= 125°C, 1000 Hours

0.3

RMS Output Noise (% of

V_OUT)²

0.001

T_A= 25°C, 10Hz < f < 10kHz

0.001

Adjust Section

Adjust Pin Current

100

µA

10mA < I_OUT< I_MAX

2.5V < (V_IN– V_OUT) < 60V

Adjust Pin Current

Change

0.2

¹Regulation is measured at constant junction temperature, using pulse testing with low duty cycle. Changes in output voltage

due to heating effects are covered under the specification for thermal regulation.

²These parameters, although guaranteed, are not tested in production.

Characteristic Curves

0.2

1.27

1.26

1.25

1.24

‐0.2

‐0.4

‐0.6

‐0.8

‐1

Output

deviation (%)

VREF (V)

V_IN= 15V; V_OUT= 10V; I_OUT= 0.5A

V_IN= 60V; I_OUT= 10mA

1.23

‐75 ‐50 ‐25

25 50 75 100 125 150

‐75 ‐50 ‐25

25 50 75 100 125 150

Temperature (°C)

Figure 3 · Reference Voltage vs. Temperature

Figure 4 · Output Voltage Deviation vs. Temperature

100

‐30

‐35

‐40

Ripple

Rejection

(dB)

I_ADJUST(µA)

‐45

‐50

‐55

‐60

V_IN= 20V; V_OUT= 10V; I_OUT= 100mA

f= 120Hz; C_ADJ= 10µF

V_IN= 6.25V; V_OUT= 1.25V; I_OUT= 60mA

‐75 ‐50 ‐25

25 50 75 100 125 150

‐75 ‐50 ‐25

25 50 75 100 125 150

Temperature (°C)

Figure 5 · Adjust Current vs. Temperature

Figure 6 · Ripple Rejection vs. Temperature

2.5

3.5

‐60°C

25°C

‐60°C

25°C

2.5

150°C

1.5

0.5

Differential Voltage (V)

Figure 8 · Minimum Current vs. Input / Output Differential

Figure 7 · Output Current vs. Input / Output Differential

Voltage

Voltage for K, P, G, IG Packages

Electrical Characteristics

Characteristic Curves

50mA to

250mA

1V/Div

6.25V

50 mV/ Div

20 mV/ Div

4µS/Div

I_OUT= 10mA

10 µS/ Div

Figure 9 · Load Transient Response

Figure 10 · Line Transient Response

T, L, Packages

V_IN=6.25V, V_OUT=1.25V; C_IN= 1µF; C_OUT= 1µF

100mA to

500mA

1V/Div

6.25V

20 mV/ Div

4µS/Div

I_OUT= 10mA

4 µS/ Div

100 mV/ Div

Figure 12 · Line Transient Response

Figure 11 · Load Transient Response

K, P, G, IG Packages

V_IN= 6.25V, V_OUT= 1.25V; C_IN= 1µF; C_OUT

1µF

V_IN= 6.25V, V_OUT= 1.25V; C_IN= 1µF; C_OUT= 1µF

Application Information

General

The SG117AHV develops a 1.25V reference voltage between the output (OUT) and the adjust (ADJ) terminals

(see Basic Regulator Circuit). By placing a resistor, R₁between these two terminals, a constant current is caused to

flow through R₁and down through R₂to set the overall output voltage. Normally this current is the specified minimum

load current of 5mA or 10mA. It is important to maintain this minimum output load current requirement otherwise the

device may fail to regulate, and the output voltage may rise.

SG117AHV

OUT

ADJ

⎛

⎞

R₂

⎜

⎟

V_OUT= V_REF1 +

+ I_ADJ• R₂

⎜

R₁

⎝

⎠

Figure 13 · Basic Regulator Circuit

The I_ADJcurrent does add an error to the output divider ratio, however because I_ADJis very small and constant

when compared with the current through R1, it represents a small error and can often be ignored.

It is easily seen from the above equation, that even if the resistors were of exact value, the accuracy of the output

is limited by the accuracy of V_REF. With a guaranteed 1% reference, a 5V power supply design, using ±2% resistors,

would have a worse case manufacturing tolerance of ± 4%. If 1% resistors were used, the tolerance would drop to

± 2.5%. A plot of the worst case output voltage tolerance as a function of resistor tolerance is shown below.

Figure 14 · Voltage Tolerance vs. Resistor Tolerance

Bypass Capacitors

Input bypassing using a 0.1 μF ceramic or 1μF solid tantalum is recommended, and especially when any input filter

capacitors are more than 5 inches from the device. A 0.1µF bypass capacitor on the ADJ pin is required if the load

current varies by more than 1A/µsec. Improved ripple rejection (80dB) can be accomplished by adding a 10μF

capacitor from the ADJ pin to ground.

SG117AHV

OUT

ADJ

Figure 15 · Improving Ripple Rejection

Electrical Characteristics

While the SG117HV is stable with no output capacitor, for improved AC transient response and to prevent the

possibility of oscillation due to an unknown reactive load, a 1μF capacitor is also recommended at the output.

Because of their low impedance at high frequencies, the best type of capacitor to use is solid tantalum; ceramic

capacitors may also be used. When bypass capacitors are used, it may be necessary to provide external protection

diodes to prevent this external large capacitance from discharging through internal low current paths, which may

damage the device. Although the duration of any surge current is short, there may be sufficient energy to damage

the regulator. This is particularly true of the large capacitance on the ADJ pin when output voltages are higher than

25V. Such a capacitor could discharge into the ADJ pin when either the input or output is shorted. See example Use

of Protection Diodes.

1N4002

SG117AHV

OUT

V_OUT

ADJ

1N4002

1µF

10µF

Note: D1 protects against C1

D2 protects against C2

Figure 16 · Use of Protection Diodes

Load Regulation

Because the SG117AHV is a three-terminal device, it is not possible to provide true remote load sensing. Load

regulation will be limited by the resistance of the wire connecting the regulator to the load. From the data sheet

specification, regulation is measured at the bottom of the package. Negative side sensing is a true Kelvin connection,

with the bottom of the output divider returned to the negative side of the load. Although it may not be immediately

obvious, best load regulation is obtained when the top of the divider is connected directly to the case, not to the load.

This is illustrated in (Connections for Best Load Regulation). If R1 were connected to the load, the effective

resistance between the regulator and the load would be:

⎛

⎞

R₂+ R₁

⎜

⎟

R_P

•

, R_P= Parasitic Line Resistance

R₁

⎝

⎠

Connected as shown, R_Pis not multiplied by the divider ratio. R_Pis about 0.004Ω per foot using 16 gauge wire.

This translates to 4mV/ft. at 1A load current, so it is important to keep the positive lead between regulator and load as

short as possible.

SG117AHV

OUT

ADJ

Figure 17 · Connections for Best Load Regulation

Application Information

Current Limit

As outlined in the Electrical Characteristics the current limit will activate whenever the output current exceeds the

specified levels. It is also important to bear in mind that the regulator includes a foldback-current characteristic that

limits the current at higher V_INto V_OUTdifferential voltages. This power limiting characteristic will prevent the regulator

from providing full output current depending on the V_INto V= differential. Also if during a short circuit situation the

regulator was presented with a voltage that exceeds the Absolute Maximum Rating of 60V (e.g. V_IN> 60V, V_OUT= 0V)

the device may fail, or be permanently damaged.

Typical Applications

SG117AHV

OUT

ADJ

Figure 18 · 1.2V – 25V Adjustable Regulator

SG117AHV

OUT

ADJ

Figure 19 · 5V Regulator with Shut Down

SG117AHV

I_OUT= V_REF/R1*

OUT

ADJ

* 0.8 Ohms < R1 < 120 Ohms

Figure 20 ·

Figure 21 · Programmable Current Limiter

Electrical Characteristics

PACKAGE OUTLINE DIMENSIONS

Controlling dimensions are in inches, metric equivalents are shown for general information.

MILLIMETERS

INCHES

MIN

Dim

MIN

8.89

8.13

4.19

0.41

MAX

9.40

8.51

4.70

0.48

1.02

MAX

0.370

0.335

0.185

0.019

0.040

0.350

0.320

0.165

0.016

5.08 BSC

0.200 BSC

0.71

0.74

0.86

1.14

0.028

0.029

0.500

0.034

0.045

0.570

12.70

14.48

45° TYP

2.54 TYP

0.41 0.53

90° TYP

1.27

45° TYP

0.100 TYP

0.016 0.021

90° TYP

0.50

Figure 22 · T 3-Pin Metal Can TO-39 Package Dimensions

MILLIMETERS

INCHES

Dim

MIN

8.64

MAX

9.14

MIN

MAX

0.360

0.320

D/E

0.340

8.128

1.270 BSC

0.635 TYP

0.050 BSC

0.025 TYP

1.02

1.52

0.040

0.060

0.090

1.626

2.286

0.064

1.016 TYP

0.040 TYP

1.372

1.68

1.168

2.41

0.054

0.066

0.046

0.95

1.91

0.075

0.203R

0.008R

Note:

1. All exposed metalized area shall be gold plated 60

micro-inch minimum thickness over nickel plated unless

otherwise specified in purchase order.

Figure 23 · L 20-Pin Ceramic Leadless Chip Carrier (LCC) Package Dimensions

PACKAGE OUTLINE DIMENSIONS

MILLIMETERS

INCHES

MIN

Dim

MIN

4.70

0.89

2.92

0.71

16.38

10.41

MAX

5.21

MAX

0.205

0.045

0.125

0.032

0.660

0.430

A₁

A₂

0.185

0.035

0.115

0.027

0.645

0.410

1.14

3.18

A₁

.081

16.76

10.92

D₁*

D₁

2.54 BSC

0.100 BSC

10.41

10.67

0.50

0.410

0.420

0.020

12.70

13.39

3.56

0.500

0.527

0.140

13.64

3.81

0.10

5.38

0.537

0.150

0.004

0.212

5.13

0.202

1.40 TYP

0.055 TYP

A₂

*Excludes Weld Fillet Around Lid.

Figure 24 · G/IG 3-Pin Hermetic TO-257 Package Dimensions

MILLIMETERS

INCHES

MIN

Dim

MIN

6.86

MAX

7.62

MAX

0.300

1.197

0.043

0.775

0.675

0.440

0.225

0.080

0.161

0.480

0.525

0.270

1.177

0.038

0.765

0.655

0.420

0.205

0.060

0.151

0.425

0.495

29.90

0.97

30.40

1.09

19.43

16.64

10.67

5.21

19.68

17.14

11.18

5.72

1.52

2.03

3.84

4.09

10.79

12.57

12.19

13.34

Figure 25 · K 3-Pin TO-3 Package Dimensions

Electrical Characteristics

PRODUCTION DATA – Information contained in this document is proprietary to

Microsemi and is current as of publication date. This document may not be modified

in any way without the express written consent of Microsemi. Product processing

does not necessarily include testing of all parameters. Microsemi reserves the right

to change the configuration and performance of the product and to discontinue

product at any time.

Microsemi Corporation (NASDAQ: MSCC) offers a comprehensive portfolio of semiconductor

solutions for: aerospace, defense and security; enterprise and communications; and industrial

and alternative energy markets. Products include high-performance, high-reliability analog and

RF devices, mixed signal and RF integrated circuits, customizable SoCs, FPGAs, and

complete subsystems. Microsemi is headquartered in Aliso Viejo, Calif. Learn more at

www.microsemi.com.

Microsemi Corporate Headquarters

One Enterprise, Aliso Viejo CA 92656 USA

Within the USA: +1(949) 380-6100

Sales: +1 (949) 380-6136

Microsemi Corporation. All other trademarks and service marks are the property of their respective owners.

Fax: +1 (949) 215-4996

SG1846.0/01.13

SG117AHVIG-883B [MICROSEMI]

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