CL431供应商报价哪里找芯片批发报价原理和应用中文资料-中国IC网-芯三七

Precision Adjustable

Shunt Reference

CORPORATION

CL431

FEATURES

DESCRIPTION

• Trimmed 0.5% Bandgap Reference

• Nominal Temperature Range Extended to 105^oC

• Temperature-Compensated: 30ppm/^oC

• Internal Amplifier with 150mA Capability

• Low Output Noise

The CL431 is an adjustable shunt regulator designed to act as

an open-loop error amplifier with a 2.5V temperature

compensated reference. Its highly accurate 0.5% bandgap

reference is perfect for applications requiring stability and

accuracy over temperature and life.

• Low Frequency Dynamic Output Impedance

Sharp turn-on characteristics and

a low temperature

coefficient make the CL431 an excellent replacement for

many zener diode applications, programmable to any value

greater than 2.5V and up to 36V by using two external

resistors. As a combination error amplifier and reference, it

can be used to manage control loops such as switching power

supplies.

The CL431 can be used as a direct replacement for the

standard TL431.

ORDERING INFORMATION

Part

Package

Temperature Range

CL431LP

CL431D

CL431S

TO-92

8-Pin Plastic SOIC

SOT-89

0 to 105^oC

PIN CONFIGURATION (Top View)

SOIC (D)

TO-92 (LP)

SOT-89 (S)

CATHODE

ANODE

N/C

1

2

3

4

8

7

6

5

REFERENCE

CATHODE

ANODE

CATHODE

ANODE

N/C

REFERENCE

1G-34

1G-33

1G-35

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

CL431

CORPORATION

ABSOLUTE MAXIMUM RATINGS

SYMBOL

PARAMETER

RATING

UNITS

V_KA

I_AK

Cathode-Anode Reverse Breakdown

Anode-Cathode Forward Current

Operating Cathode Current

37

1

V

A

I_KA

250

10

mA

I_REF

P_D

Reference Input Current

Continuous Power at 25^oC

TO-92

8L SOIC

SOT-89

775

750

1000

mW

T_J

Junction Temperature

150

–65 to 150

300

^oC

T_STG

T_L

Storage Temperature

Lead Temperature, Soldering 10 Seconds

Exceeding ABSOLUTE MAXIMUM RATINGS may cause permanent damage. Extended operation of the device at these or any other conditions

above those indicated in the operational sections of this specification is not recommended as it may adversely affect reliability and performance.

RECOMMENDED CONDITIONS

TYPICAL THERMAL RESISTANCE

SYMBOL

PARAMETER

Cathode Voltage

Cathode Current

RATING

V_REFto 20

10

UNIT

V

PACKAGE

TO-92

θ_JA

θ_JC

TYPICAL DERATING

6.3mW/^oC

V_KA

I_K

160^oC/W

175^oC/W

110^oC/W

80^oC/W

45^oC/W

8^oC/W

mA

SOIC

5.7mW/^oC

SOT-89

9.1mW/^oC

FUNCTIONAL BLOCK DIAGRAM

CATHODE (K)

+

–

REFERENCE (R)

2.5V

ANODE (A)

1G-36

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

CL431

CORPORATION

ELECTRICAL CHARACTERISTICS

Electrical Characteristics are guaranteed over full junction temperature range (0 to 105^oC). Ambient temperature must be derated based on

power dissipation and package thermal characteristics. The conditions are: V_KA= V_REFand I_K= 10mA unless otherwise stated.

CL431 (0.5%)

TEST

SYMBOL

PARAMETER

UNIT

TEST CONDITION

CIRCUIT

MIN

TYP

MAX

2.515

2.536

0.20

2.490

2.469

2.503

V

1

T

_A= 25^oC

Over Temp.

V_REF

Reference Voltage

TC

∆V_REFwith Temp.*

0.07

–1.0

–0.4

0.7

mV/ ^oC

–2.7

–2

V_REFto 10V

∆V_REF

∆V_K

Ratio of Change in V_REFto

Cathode Voltage

mV/V

2

0.3

4

10V to 36V

I_REF

Reference Input Current

I_REFTemp Deviation

µA

mA

nA

Ω

2

1

3

1

∆I_REF

I_K(MIN)

I_K(OFF)

Z_KA

0.4

1.2

1

Over Temp.

Min I_Kfor Regulation

Off State Leakage

0.4

0.04

0.15

250

0.5

V_REF= 0V, V_KA= 36V

Dynamic Output Impedance

f ≤ 1kHz, I_K= 1 to 150mA

*CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)

%

∆V_REF(mV)

• TC in mV/^oC =

• TC in %/^oC =

• TC in ppm/^oC =

0

∆T_A

∆V_REF

∆T

∆V_REF

V_REFat 25^oC

–10

x 100

5000

0.5

∆T_A

0

15

30

45

60

75

90

105

∆V_REF

V_REFat 25^oC

x 10⁶

TEMPERATURE (˚C)

0.07 mV/˚C

0.003 %/˚C

27 ppm/˚C

∆T_A

1G-37

TEST CIRCUITS

V_IN

V_KA

V_IN

V_KA

V_IN

V_KA= V_REF

I_K

I_K(OFF)

I_K

I_REF

R₁

(V_REF

R₂

I_REF

)

1G-38

1G-39

1G-40

TEST CIRCUIT 1

TEST CIRCUIT 2

TEST CIRCUIT 3

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

CL431

CORPORATION

TYPICAL PERFORMANCE CURVES

LOW CURRENT OPERATING

CHARACTERISTICS

HIGH CURRENT OPERATING

CHARACTERISTICS

900

800

700

600

500

400

300

200

100

0

150

125

100

75

V

= V

V

= V

REF

KA

REF

KA

TEMPERATURE RANGE: –55 to 125˚C

50

125˚C

25˚C

25

0

–55˚C

–25

–50

–75

–100

–200

–1.0

0

1.0

2.0

3.0

–2

–1

V – CATHODE VOLTAGE (V)

KA

0

1

2

3

V

– CATHODE VOLTAGE (V)

1G-41

1G-42

KA

TEMPERATURE COEFFICIENT AS

A FUNCTION OF TRIM VALUE

OFF STATE LEAKAGE

= 36V

100

10

2.54

V

= V

KA

REF

2.53

2.52

2.51

2.50

2.49

2.48

2.47

2.46

= 0V

= 10mA

I

REF

K

1

V

= 2.503V AT 25˚C

REF

0.1

0.01

–60 –30

0

30

60

90 120

–60 –30

0

30

60

90 120

T

– AMBIENT TEMPERATURE

T

– AMBIENT TEMPERATURE (˚C)

1G-44

1G-43

A

REFERENCE

INPUT CURRENT

REFERENCE VOLTAGE

LINE REGULATION

3.0

2.5

2.0

1.5

1.0

0.5

0

–10

–20

–30

–40

–50

R1 = 10kΩ

R2 = ∞

I

= 10mA

K

–55˚C

0˚C

25˚C

75˚C

125˚C

I

= 10mA

K

TEMPERATURE RANGE: –55 to 125˚C

–60 –30

0

30

60

90 120

0

3

6

9

12 15 18 21 24 27 30

– CATHODE VOLTAGE (V)

KA

T

– AMBIENT TEMPERATURE (˚C)

V

1G-45

1G-46

A

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

CL431

CORPORATION

TYPICAL PERFORMANCE CURVES (continued)

LOW FREQUENCY DYNAMIC

OUTPUT IMPEDANCE

NOISE VOLTAGE

70

0.150

0.125

0.100

0.075

0.050

0.025

0.0

V

= V

KA

REF

= 1 TO 100mA

I

60

50

40

30

20

KA

f ≤ 1kHz

V

= V

REF

KA

10

I

= 10mA

= 25˚C

K

T

A

0

10

100

1k

10k

100k

–60 –30

0

30

60

90 120

f – FREQUENCY (Hz)

T

A

– FREE AIR TEMPERATURE

1G-47

1G-48

DYNAMIC OUTPUT

IMPEDANCE

= 25˚C

100

10

T

A

I

= 1 TO 100mA

K

1.0

0.1

0.01

1k

10k

100k

1M

10M

f – FREQUENCY (Hz)

1G-49

SMALL SIGNAL GAIN

vs FREQUENCY

70

60

50

40

30

20

10

0

OUT

230Ω

15k

I_K

T

= 25˚C

A

9µF

= 10mA

I

K

8.25k

GND

1H-01

1k

10k

100k

1M

10M

f – FREQUENCY (Hz)

1G-50

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

CL431

CORPORATION

TYPICAL PERFORMANCE CURVES (continued)

PULSE RESPONSE

6

INPUT

MONITOR

220

Ω

5

OUT

4

3

2

OUTPUT

50Ω

f_P= 100kHz

1

GND

1H-03

0

–1

0

1 2 3 4 5 6 7 8 9 10 11 12

t – TIME (µs)

1H-02

STABILITY BOUNDARY

CONDITIONS

100

90

80

70

60

50

40

30

20

10

0

A: V = V

KA REF

B: V = 5V AT I = 10mA

KA

150Ω

K

C: V = 10V AT I = 10mA

KA

K

D: V = 15V AT I = 10mA

KA

K

I_K

C

STABILITY

REGION

C_L

10k

A

B

1H-05

D

T

= 25˚C

1

A

0

2

3

4

5

6

7

10 10 10 10 10 10 10 10

C

– LOAD CAPACITANCE (pF)

1H-04

L

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

型号:	CL431D
是否Rohs认证：	不符合
生命周期：	Obsolete
包装说明：	SOP, SOP8,.25
Reach Compliance Code：	unknown
风险等级：	5.86
JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e0
湿度敏感等级：	1
端子数量：	8
最高工作温度：	105 °C
最低工作温度：
最大输出电流：	0.15 A
最大输出电压：	36 V
最小输出电压：	2.5 V
封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP
封装等效代码：	SOP8,.25
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE
认证状态：	Not Qualified
子类别：	Voltage References
表面贴装：	YES
技术：	BIPOLAR
温度等级：	OTHER
端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING
端子节距：	1.27 mm
端子位置：	DUAL
Base Number Matches：	1

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