SG117T_技术文档

SG117A/SG217A/SG317A

SG117/SG217/SG317

1.5 AMP THREE TERMINAL

ADJUSTABLE VOLTAGE REGULATOR

DESCRIPTION

FEATURES

The SG117A Series are 3-terminal positive adjustable voltage

regulators which offer improved performance over the original 117

design. A major feature of the SG117A is reference voltage

tolerance guaranteed within 1ꢀ% allowing an overall power supplꢁ

tolerance to be better than 3ꢀ using inexpensive 1ꢀ resistors. Line

and load regulation performance has been improved as well.

Additionallꢁ% the SG117A reference voltage is guaranteed not to

exceed 2ꢀ when operating over the full load% line and power

dissipation conditions. The SG117A adjustable regulators offer an

improved solution for all positive voltage regulator requirements

with load currents up to 1.5A.

• 1% output voltage tolerance

• 0.01%/V line regulation

• 0.3% load regulation

• Min. 1.5A output current

• Available in hermetic TO-220

HIGH RELIABILITY FEATURES-SG117A/SG117

♦ Available to MIL-STD-883 and DESC SMD

♦ MIL-M38510/11704BYA - JAN117K

♦ MIL-M38510/11703BXA - JAN117T

♦ LMI level "S" processing available

SCHEMATIC DIAGRAM

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

Copꢁright  1994

11861 Western Avenue ∞ Garden Grove, CA 92841

1

(714) 898-8121 ∞ FAX: (714) 893-2570

SG117A/SG117SERIES

ABSOLUTE MAXIMUM RATINGS (Note 1)

Power Dissipation ........................................

Operating Junction Temperature

Internally Limited

Input to Output Voltage Differential .................................

Hermetic (K, R, T, L, IG-Packages) ............................

Lead Temperature (Soldering, 10 Seconds) ..............

40V

150°C

300°C

Storage Temperature Range ..........................

-65°C to 150°C

Note 1. Exceeding these ratings could cause damage to the device.

THERMAL DATA

K Package:

Note A. Junction Temperature Calculation: T_J= T + (P_Dx θ_JA).

Thermal Resistance-Junction to Case, θ_JC................. 3.0°C/W

Thermal Resistance-Junction to Ambient, θ_JA.............. 35°C/W

R Package:

Thermal Resistance-Junction to Case, θ_JC................. 5.0°C/W

Thermal Resistance-Junction to Ambient, θ_JA............. 40°C/W

T Package:

Thermal Resistance-Junction to Case, θ_JC.................. 15°C/W

Thermal Resistance-Junction to Ambient, θ_JA........... 120°C/W

IG Package:

Note B. The above numbers for θ_JCare maximu^Ams for the limiting

thermal resistance of the package in a standard mount-

ing configuration. The θ_JAnumbers are meant to be

guidelines for the thermal performance of the device/pc-

board system. All of the above assume no ambient

airflow.

Thermal Resistance-Junction to Case, θ_JC................. 3.5°C/W

Thermal Resistance-Junction to Ambient, θ_JA............. 42°C/W

L Package:

Thermal Resistance-Junction to Case, θ_JC.................. 35°C/W

Thermal Resistance-Junction to Ambient, θ_JA........... 120°C/W

RECOMMENDED OPERATING CONDITIONS (Note 2 & 3)

Input Voltage Range .............................. (V_OUT+ 3.5V) to 37V

Operating Junction Temperature Range

SG117A/SG117 ......................................... -55°C to 150°C

SG217A/SG217 ......................................... -25°C to 150°C

SG317A/SG317 ............................................ 0°C to 125°C

Note 2. Range over which the device is functional.

Note 3. These ratings are applicable for junction temperatures of less than 150°C.

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG117A/SG117 with -55°C≤ T_A≤ 125°C, SG217A/

SG217 with -25°C ≤ T_A≤ 150°C, SG 317A/SG317 with 0°C ≤ T_A≤ 125°C, V_IN- V_OUT= 5.0V , and for I_OUT= 500mA (K, R, 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, R, and IG packages. I_MAXis 1.5A for the K, R, 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.)

SG117A/SG217A

Min. Typ. Max. Min. Typ. Max.

1.238 1.250 1.262

SG117/SG217

Parameter

Test Conditions

I_OUT= 10mA T_A= 25°C

Units

Reference Voltage

V

3V ≤ (V_IN- V_OUT) ≤ 40V, P ≤ P_MAX

,

10mA ≤ I_OUT≤ I_MAX

1.225 1.250 1.270 1.20 1.25 1.30

V

Line Regulation (Note 4)

Load Regulation (Note 4)

3V ≤ (V_IN- V_OUT) ≤ 40V, I_L= 10mA

T_A= 25°C

0.005 0.01

0.01 0.02

0.02 0.05

%/V

T_A= T_MINto T

10mA ≤ I_OUT≤ ^MI_M^A_A^X_X

V

≤ 5V, T_A= 25°C

^OUT≥ 5V, T_A= 25°C

^OUT≤ 5V

5

15

0.3

50

1

5

15

0.3

50

1

mV

%

mV

%

0.1

20

0.3

0.1

20

0.3

V_O^O_U^U_T^T≥ 5V

Thermal Regulation (Note 5)

Ripple Rejection

T_A= 25°C, 20ms pulse

0.002 0.02

0.03 0.07

%/W

V

_OUT= 10V, f =120Hz

C_ADJ= 1µF, T_A= 25°C

_ADJ= 10µF

65

80

50

65

80

50

dB

µA

C

66

Adjust Pin Current

100

5

100

5

Adjust Pin Current Change

10mA ≤ I_OUT≤ I_MAX, 2.5V ≤ (V_IN- V_OUT) ≤ 40V

0.2

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

Copyright  1994

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 FAX: (714) 893-2570

2

∞

SG117A/SG117SERIES

ELECTRICAL CHARACTERISTICS (continued)

SG117A/SG217A

Min. Typ. Max. Min. Typ. Max.

SG117/SG217

Parameter

Test Conditions

Units

Minimum Load Current

Current Limit

(V_IN- V_OUT) = 40V

(V_IN- V_OUT) ≤ 15V

K, P, R, IG Packages

T, L Packages

3.5

5

3.5

5

mA

1.5

0.5

2.2

0.8

1.5

0.5

2.2

0.8

A

(V_IN- V_OUT) = 40V, T_J= 25°C

K, P, R, IG Packages

T, L Packages

0.3

0.15 0.2

0.4

0.3

0.15 0.2

0.4

A

Temperature Stability (Note 5)

Long Term Stability (Note 5)

RMS Output Noise (% of V_OUT

1

0.3

0.001

2

1

0.3

0.001

%

T_A= 125°C, 1000 Hours

T_A= 25°C, 10Hz ≤ f ≤ 10 KHz (Note 5)

1

)

SG317A

SG317

Parameter

Test Conditions

Units

Min. Typ. Max. Min. Typ. Max.

Reference Voltage

I_OUT= 10mA T_A= 25°C

1.238 1.250 1.262

V

3V ≤ (V_IN- V_OUT) ≤ 40V, P ≤ P_MAX

,

10mA ≤ I_OUT≤ I_MAX

1.225 1.250 1.270 1.20 1.25 1.30

V

Line Regulation (Note 4)

Load Regulation (Note 4)

3V ≤ (V_IN- V_OUT) ≤ 40V, I_L= 10mA

T_A= 25°C

0.005 0.01

0.01 0.02

0.01 0.04

0.02 0.07

%/V

T_A= T_MINto T

10mA ≤ I_OUT≤ ^MI^A_M^X_AX

V

≤ 5V, T_A= 25°C

^OUT≥ 5V, T_A= 25°C

^OUT≤ 5V

5

25

0.5

50

1

5

25

0.5

70

mV

%

mV

0.1

20

0.3

0.1

20

0.3

V_O^O_U^U_T^T≥ 5V

1.5

%

Thermal Regulation (Note 5)

Ripple Rejection

T_A= 25°C, 20ms pulse

0.002 0.02

0.03 0.07 %/W

V_OUT= 10V, f =120Hz

C_ADJ= 1µF, T_A= 25°C

65

80

50

0.2

3.5

dB

µA

mA

65

80

50

0.2

3.5

C

_ADJ= 10µF

66

Adjust Pin Current

T_A= 25°C

100

5

10

100

5

10

Adjust Pin Current Change

Minimum Load Current

Current Limit

10mA ≤ I_OUT≤ I_MAX, 2.5V ≤ (V_IN- V_OUT) ≤ 40V

(V_IN- V_OUT) = 40V

(V_IN- V_OUT) ≤ 15V

K, P, R, IG Packages

T, L Packages

1.5

0.5

2.2

0.8

1.5

0.5

2.2

0.8

A

(V_IN- V_OUT) = 40V, T_J= 25°C

K, P, R, IG Packages

T, L Packages

0.15 0.4

.075 0.2

1

0.15 0.4

A

%

.075

0.2

1

Temperature Stability (Note 5)

Long Term Stability (Note 5)

RMS Output Noise (% of V_OUT

2

1

T_A= 125°C

T_A= 25°C, 10Hz ≤ f ≤ 10KHz (Note 5)

0.3

0.001

0.3

0.001

1

)

Note4. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to

heating effects are covered under the specification for thermal regulation.

Note 5. These parameters, although guaranteed, are not tested in production.

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

Copyright  1994

11861 Western Avenue ∞ Garden Grove, CA 92841

3

(714) 898-8121 ∞ FAX: (714) 893-2570

SG117A/SG117SERIES

CHARACTERISTIC CURVES

FIGURE 1.

FIGURE 2.

FIGURE 3.

OUTPUT CURRENT VS. INPUT/OUTPUT

DIFFERENTIAL

OUTPUT VOLTAGE DEVIATION VS. TEMPERATURE

ADJUSTMENT CURRENT VS. TEMPERATURE

FIGURE 4.

FIGURE 5.

FIGURE 6.

INPUT/OUTPUT DIFFERENTIAL VS. TEMPERATURE

REFERENCE VOLTAGE VS. TEMPERATURE

QUISCENT CURRENT VS. INPUT/OUTPUT

DIFFERENTIAL

FIGURE 7.

FIGURE 8.

FIGURE 9.

RIPPLE REJECTION VS. OUTPUT VOLTAGE

RIPPLE REJECTION VS. FREQUENCY

RIPPLE REJECTION VS. OUTPUT CURRENT

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

Copyright  1994

11861 Western Avenue ∞ Garden Grove, CA 92841

4

(714) 898-8121 ∞ FAX: (714) 893-2570

SG117A/SG117SERIES

CHARACTERISTIC CURVES (continued)

FIGURE 11.

LINE TRANSIENT RESPONSE

FIGURE 10.

OUTPUT IMPEDANCE VS. FEQUENCY

FIGURE 12.

LOAD TRANSIENT RESPONSE

FIGURE 13.

FIGURE 14.

FIGURE 15.

OUTPUT IMPEDANCE VS. FREQUENCY

LINE TRANSIENT RESPONSE

LOAD TRANSIENT RESPONSE

FIGURE 16.

OUTPUT VOLTAGE ERROR

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

Copyright  1994

11861 Western Avenue ∞ Garden Grove, CA 92841

5

(714) 898-8121 ∞ FAX: (714) 893-2570

SG117A/SG117SERIES

APPLICATION INFORMATION

GENERAL

The SG117A develops a 1.25V reference voltage between the

output and the adjustable terminal (see Figure 1). 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.

For convenience, a table of standard 1ꢀ resistor values is shown

below.

Table of ½ꢀ and 1ꢀ Standard Resistance Values

1.00

1.02

1.05

1.07

1.10

1.13

1.15

1.1±

1.21

1.24

1.27

1.30

1.33

1.37

1.40

1.43

1.47

1.50

1.54

1.5±

1.62

1.65

1.69

1.74

1.7±

1.±2

1.±7

1.91

1.96

2.00

2.05

2.10

2.15

2.21

2.26

2.32

2.37

2.43

2.49

2.55

2.61

2.67

2.74

2.±0

2.±7

2.94

3.01

3.09

3.16

3.24

3.32

3.40

3.4±

3.57

3.65

3.74

3.±3

3.92

4.02

4.12

4.22

4.32

4.42

4.53

4.64

4.75

4.±7

4.99

5.11

5.23

5.36

5.49

5.62

5.76

5.90

6.04

6.19

6.34

6.49

6.65

6.±1

6.9±

7.15

7.32

7.50

7.6±

7.±7

±.06

±.25

±.45

±.66

±.±7

9.09

9.31

9.53

9.76

FIGURE 17 - BASIC REGULATOR CIRCUIT

Standard Resistance Values are obtained from the Decade

Table by multiplying by multiples of 10. As an example:1.21

can represent 1.21Ω, 12.1Ω, 121Ω, 1.21KΩ etc.

Because I_ADJis very small and constant when compared with the

current through R₁, it represents a small error and can usually 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. Earlier adjustable regulators had a reference

tolerance of ±4ꢀ. This tolerance is dangerously close to the ±5ꢀ

supply tolerance required in many logic and analog systems.

Further, many 1ꢀ resistors can drift 0.01ꢀ°C adding another 1ꢀ

to the output voltage tolerance.

For example, using 2ꢀ resistors and ±4ꢀ tolerance for VREF,

calculations will show that the expected range of a 5V regulator

design would be 4.66V ≤ V_OUT≤ 5.36V or approximately ±7ꢀ. If

the same example were used for a 15V regulator, the expected

tolerance would be ±±ꢀ. ꢁith these results most applications

require some method of trimming, usually a trim pot. This solution

is expensive and not conducive to volume production.

FIGURE 1± - CONNECTIONS FOR BEST LOAD REGULATION

One of the enhancements of Silicon General’s adjustable regu-

lators over existing devices is tightened initial tolerance. This

allows relatively inexpensive 1ꢀ or 2ꢀ film resistors to be used

for R₁and R₂while setting output voltage within an acceptable

tolerance range.

ꢁith a guaranteed 1ꢀ reference, a 5V power supply design,

using ±2ꢀ resistors, would have a worse case manufacturing

tolerance of ±4ꢀ. If 1ꢀ resistors were used, the tolerance would

drop to ±2.5ꢀ. A plot of the worst case output voltage tolerance

as a function of resistor tolerance is shown on the front page.

FIGURE 19 - 1.2V-25V ADJUSTABLE REGULATOR

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 FAX: (714) 893-2570

6

∞

SG117A/SG117SERIES

APPLICATION INFORMATION (continued)

BYPASS CAPACITORS

Input bypassing using a 1µF tantalum or 25µF electrolytic is

recommended when the input filter capacitors are more than 5

inches from the device. A 0.1µF bypass capacitor on the

ADJUST 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 adjust pin to ground. For

improved AC transient response and to prevent the possibility of

oscillation due to 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.

FIGURE 22 - 5V REGULATOR WITH SHUT DOWN

FIGURE 20 - REMOTE SENSING

FIGURE 23 - 21V PROGRAMMING SUPPLY FOR UV PROM/EEPROM

FIGURE 21 - IMPROVING RIPPLE REJECTION

LOAD REGULATION

Because the SG117A 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. For 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 immedi-

ately 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 Figure 18. If R₁were connected to the load, the

effective resistance between the regulator and the load would be

FIGURE 24 - 2816 EEPROM SUPPLY PROGRAMMER FOR READ/WRITE CONTROL

R₂+ R₁

R_PX

R_P= Parasiti,c Line Resistance.

(

)

R₁

Connected as shown, R_Pis not multiplied by the divider ratio. R_P

is 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.

FIGURE 25 - TEMPERATURE COMPENSATED LEAD ACID BATTERY CHARGER

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

11861 Western Avenue ∞ Garden Grove, CA 92841

7

(714) 898-8121 ∞ FAX: (714) 893-2570

SG117A/SG117SERIES

CONNECTION DIAGRAMS & ORDERING INFORMATION (See Notes Below)

Ambient

Temperature Range

Package

Part No.

Connection Diagram

3-TERMINAL TO-3

METAL CAN

K-PACKAGE

SG117AK/883B

SG117AK/DESC

SG117AK

SG217AK

SG317AK

-55°C to 125°C

-25°C to 85°C

0°C to 70°C

ADJUSTMENT

1

2

SG117K/883B

JAN117K

SG117K/DESC

SG117K

SG217K

SG317K

-55°C to 125°C

-25°C to 85°C

0°C to 70°C

CASE IS V_OUT

V_IN

3-TERMINAL TO-66

METAL CAN

R-PACKAGE

SG117AR/883B

SG117AR/DESC -55°C to 125°C

SG117AR

SG217AR

-55°C to 125°C

ADJUSTMENT

-55°C to 125°C

-25°C to 85°C

0°C to 70°C

1

2

SG317AR

SG117R/883B

-55°C to 125°C

CASE IS V_OUT

SG117AR/DESC -55°C to 125°C

V_IN

SG117R

SG217R

SG317R

-55°C to 125°C

-25°C to 85°C

0°C to 70°C

3-PIN TO-39 METAL CAN

T-PACKAGE

SG117AT/883B

SG117AT/DESC

SG117AT

SG217AT

SG317AT

-55°C to 125°C

-25°C to 85°C

0°C to 70°C

V_IN

1

2

ADJUST

V_OUT

3

SG117T/883B

JAN117T

SG117T/DESC

SG117T

SG217T

-55°C to 125°C

-25°C to 85°C

0°C to 70°C

CASE IS V_OUT

SG317T

3-PIN HERMETIC TO-257

IG-PACKAGE (Isolated)

SG117AIG/883B

SG117AIG/DESC -55°C to 125°C

-55°C to 125°C

V_IN

SG117AIG

-55°C to 125°C

V_OUT

SG117IG/883B

SG117IG/DESC

SG117IG

ADJUST

(Note 4) 1. V_OUTSENSE

3

2

1

20 19

11. N.C.

20-PIN CERAMIC (LCC)

LEADLESS CHIP CARRIER

L- PACKAGE

SG117AL/883B

SG117AL/DESC

SG117AL

SG117L/883B

SG117L/DESC

SG117L

-55°C to 125°C

2. N.C.

3. N.C.

4. N.C.

5. V_IN

12. N.C.

13. N.C.

14. N.C.

15. N.C.

16. N.C.

17. N.C.

18. N.C.

19. N.C.

20. V_OUT

4

5

6

7

8

18

17

16

15

14

6. N.C.

7. N.C.

8. N.C.

9. N.C.

10. ADJUST

9

10 11 12 13

Note 1. Contact factory for JAN and DESC product availability. 3. Both inputs and outputs must be externally connected together at the device

2. All parts are viewed from the top.

terminals.

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

2/93 Rev 1.2 10/02

LINFINITY Microelectronics Inc.

11861 Western Avenue ∞ Garden Grove, CA 92841

8

(714) 898-8121 ∞ FAX: (714) 893-2570


型号：	SG117T
厂家：	Micro Electronics
描述：	1.5 AMP THREE TERMINAL ADJUSTABLE VOLTAGE REGULATOR 1.5 AMP三端可调稳压调节器输出元件
文件：	总8页 (文件大小：261K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SG117T [MICRO-ELECTRONICS]

相关型号：

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