TLVH431 [STMICROELECTRONICS]

Programmable shunt voltage reference;


型号：	TLVH431
厂家：	ST
描述：	Programmable shunt voltage reference
文件：	总15页 (文件大小：823K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TLVH431

Programmable shunt voltage reference

Datasheet

production data

• Battery chargers

• Switch mode power supplies

• Battery operated equipment

• Data acquisition systems

• Energy management

SOT23-5L

SOT23-3L

Description

The TLVH431 is a low power programmable

shunt voltage reference, with guaranteed

temperature stability over the entire operating

temperature range.

SOT323-6L

Features

• Adjustable output voltage: 1.24 V to 18 V

• Low operating current: 100 µA at 25 °C

• 0.25%, 0.5%, 1% and 1.5% voltage precision

• Sink current capability up to 60 mA

The output voltage may be set to any value

between 1.24 V and 18 V by means of an external

resistor divider.

The TLVH431 operates with a wide current range

from 100 µA to 60 mA with a typical dynamic

impedance of 0.22 Ω.

• -40 to +125 °C temperature range

• 100 ppm/°C maximum temperature coefficient

Available in SOT23-3L, SOT23-5L and SOT323-

6L surface mounted packages, it can be designed

in applications where space saving is a critical

issue.

• Available in SOT23-3L, SOT23-5L and

SOT323-6L packages

Applications

The low operating current is a key advantage for

power restricted designs.

• Computers

Table 1. Device summary

Precision Package

Part number

Temperature range

TLVH431AIL3T

TLVH431BIL3T

TLVH431MIL3T

TLVH431LIL3T

TLVH431AIL5T

TLVH431BIL5T

TLVH431LIL5T

TLVH431AICT

TLVH431BICT

TLVH431LICT

0.5%

0.25%

SOT23-3L

1.5%

0.5%

0.25%

1.5%

0.5%

0.25%

1.5%

-40 to +125°C

SOT23-5L

SOT323-6L

November 2015

DocID023303 Rev 5

1/15

This is information on a product in full production.

www.st.com

Contents

TLVH431

Contents

Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.1

5.2

5.3

SOT23-3L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SOT23-5L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

SOT323-6L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2/15

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TLVH431

Pin configuration

Figure 1. Pin configuration (top view)

AM12710v1

AM12711v1

AM12712v1

SOT23-3L

SOT23-5L

SOT323-6L

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Maximum ratings

TLVH431

Maximum ratings

Table 2. Absolute maximum ratings

Symbol

Parameter

Value

Unit

V_KA

I_K

I_REF

T_STG

Cathode to anode voltage

Continuous cathode current range

Reference input current range

Storage temperature

- 100 to +100

- 0.05 to +3

- 65 to +150

°C

Human body model (HBM)

Machine model (MM)

ESD

200

Charged device model

1500

Lead temperature (soldering) 10

sec

T_LEAD

T_J

260

°C

Max. junction temperature

+150

Note:

Absolute maximum ratings are those values beyond which damage to the device may occur.

Functional operation under these conditions is not implied.

Table 3. Thermal data

Symbol

Parameter

SOT323-6L SOT23-3L SOT23-5L Unit

R_thJAThermal resistance junction-ambient

R_thJCThermal resistance junction-case

221

110

248

136

157

°C/W

Table 4. Operating conditions

Parameter

Symbol

Value

Unit

V_KA

I_kmin

I_kmax

T_oper

Cathode to anode voltage

V_refto 18

100

Minimum operating current

µA

°C

Maximum operating current

Operating free air temperature range

-40 to +125

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TLVH431

Electrical characteristics

I_k= 10 mA, T_amb= 25 °C (unless otherwise specified).

Table 5. Electrical characteristics for TLVH431

Symbol

Parameter

Test conditions

Min. Typ. Max.

Unit

V_KA= V_ref

TLVH431A 0.5%

TLVH431B 0.25%

TLVH431M 1%

TLVH431L 1.5%

1.234

1.246

V_ref

Reference voltage

1.237 1.24 1.243

1.227

1.222

1.253

1.258

- 40 °C < T_amb< +125 °C

TLVH431A 0.5%

TLVH431B 0.25%

TLVH431M 1%

-26.7

-23.5

-32.8

-39

+26.7

+23.5

+32.8

+39

Reference voltage

variation over

ΔV_ref

temperature range ⁽¹⁾

TLVH431L 1.5%

Average temperature

coefficient

ΔV_KA/ΔT

V_KA= V_ref,- 40 °C < T_amb< +125 °C

±30 ±100 ppm/°C

V_KA= V_ref

160

100

200

100

Minimum cathode

current for regulation

I_kmin

µA

V_KA= V_KAmax

Minimum cathode

V_KA= V_ref, - 40 °C < T_amb< +125 °C

ΔI_kmincurrent variation over

µA

V_KA= V_KAmax,- 40 °C < T_amb< +125°C

100

1.5

200

2.5

temperature range

I_ref

Reference input current R₁= 10 kΩ, R₂= ∞

Reference current

variation over

temperature range

R₁= 10 kΩ, R₂= ∞

- 40 °C < T_amb< + 125 °C

ΔI_ref

2.5

3.5

Ratio of change in

reference input voltage

to change in cathode to

anode voltage

ΔV_KA= 18 V to V_ref

-2

-2.5

ΔVref

------------

ΔVka

mV/V

ΔV_KA= 18 V to V_ref,- 40 °C < T_amb< +125 °C

I_off

Off-state cathode current V_KA= V_KAmax,V_ref= GND

V_KA= V_KAmax,V_ref= GND

- 40 °C < T_amb< +125 °C

Off-state cathode current

over temperature range

ΔI_off

1000 2000

⏐R_KA

⏐

Static impedance

V_KA= V_ref,ΔI_K= 100 µA to 60 mA

0.14 0.62

0.22 0.85

⏐Z_KA

e_n

⏐

Dynamic impedance ⁽²⁾V_KA= V_ref,ΔI_K= 10 mA to 60 mA, f ≤ 1 kHz

Wide band noise

I_K= 10 mA; 10 Hz < f < 100 kHz

mV_RMS

µsec

T)]}.

T_ON

Turn-on setting time

V_KA= V_ref,ΔI_K= 10 mA

1. The tolerance values, across the temperature range, are calculated as: ±Vk

x {tolerance

+[(ppm /°

max

C) x (Δ

25 C

Example: TLVH431A ΔV

°C x 165 °C) = ±1.24 x (0.5%+1.65%)= ±1.24 x 2.15% = ± 26.7 mV.

k = ±1.24 x (0.5% + 100 ppm/

2. The dynamic impedance is defined as ⏐Z_KA⏐=ΔV_KA/ΔI_k.

Note:

Limits are 100% production tested at 25 °C. Limits over the temperature range are

guaranteed through correlation and by design.

DocID023303 Rev 5

5/15

Typical performance characteristics

TLVH431

Typical performance characteristics

The following plots are referred to the typical application circuit and, unless otherwise noted,

at T_A= 25 °C.

Figure 2. Test circuit for V_KA= V_ref

Figure 3. Test circuit for V_KA> V_ref

AM11713v1

AM11714v1

Figure 4. Reference voltage vs. temperature

Figure 5. Minimum cathode current for

regulation vs. temperature

AM11716v1

AM11715v1

100

1260

1255

1250

1245

1240

1235

1230

1225

1220

V_KA= V_ref

V_KA= V_ref, I_K= 10 mA

-40

-25

105

125

-40

-25

105

125

Temperature °C

Figure 6. Off-state cathode current vs.

temperature

Figure 7. Reference input current vs.

temperature

AM11717v1

AM11718v1

200

180

160

140

120

100

1.8

1.6

1.4

1.2

_KA= 18 V, V_ref= GND

I_K= 10 mA, R1 = 10 kΩ, R2 = ∞

0.8

0.6

0.4

0.2

-40

-25

105

125

-40

-25

105

125

Temperature °C

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TLVH431

Typical performance characteristics

Figure 8. Cathode current vs. cathode voltage

Figure 9. ΔV_{ref vs.}ΔV_KA

AM11720v1

-2

AM11719v1

1.E+05

ΔV_REFvs. ΔV_KA, I_K=10 mA

V_KA= V_ref

-4

1.E+04

-6

-8

1.E+03

1.E+02

1.E+01

-10

-12

-14

-16

0.7

0.8

0.9

1.1

1.2

1.3

1.4

Reference voltage [mV]

Cathode Voltage V_KA[V]

Figure 10. Wideband noise

Figure 11. Gain and phase vs. frequency

AM11722v1

200

AM11721v1

500

450

400

350

300

250

200

150

100

I_K= 10 mA, V_KA= V_ref, No C_OUT

180

160

140

120

100

I_K= 10 mA, No C_OUT

Gain

Phase

-20

-40

-60

-80

-10

-20

0.1

100

1000

10000

0.1

100

1000

Frequency (kHz)

Figure 12. Turn-on (no C_LOAD

)

Figure 13. Turn-on (C_LOAD= 10 nF)

from 0 to 4 V, I = 1 mA, no C

from 0 to 4 V, I = 1 mA, C

= 10 nF

LOAD

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Package information

TLVH431

Package information

In order to meet environmental requirements, ST offers these devices in different grades of

ECOPACK^®packages, depending on their level of environmental compliance. ECOPACK

specifications, grade definitions and product status are available at: www.st.com.

ECOPACK is an ST trademark.

5.1

SOT23-3L package information

Figure 14. SOT23-3L package outline

7110469_B

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DocID023303 Rev 5

TLVH431

Package information

Table 6. SOT23-3L mechanical data

Dim.

Min.

Typ.

Max.

0.89

0.01

0.88

0.30

0.08

2.80

2.10

1.20

1.12

0.10

1.02

0.50

0.20

3.04

2.64

1.40

0.95

2.90

1.30

0.95

1.90

0.50

0.54

0.40

0°

0.60

8°

DocID023303 Rev 5

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Package information

TLVH431

5.2

SOT23-5L package information

Figure 15. SOT23-5L package outline

7049676_I

10/15

DocID023303 Rev 5

TLVH431

Package information

Table 7. SOT23-5L mechanical data

Dim.

Min.

Typ.

Max.

0.90

1.20

1.45

0.15

1.30

0.50

0.20

3.00

0.90

0.35

0.09

2.80

1.05

0.40

0.15

2.90

0.95

1.60

2.80

0.35

1.50

2.60

0.10

0°

1.75

3.00

0.60

10°

Figure 16. SOT23-5L recommended footprint (dimensions are in mm)

7049676_I

DocID023303 Rev 5

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Package information

TLVH431

5.3

SOT323-6L package information

Figure 17. SOT323-6L package outline

7095021_F

12/15

DocID023303 Rev 5

TLVH431

Package information

Table 8. SOT323-6L mechanical data

Dim.

Min.

Typ.

Max.

0.80

1.10

0.10

1.00

0.30

0.18

2.20

1.35

0.80

0.15

0.10

1.80

1.15

0.65

1.80

0.10

2.40

0.40

Figure 18. SOT323-6L recommended footprint (dimensions are in mm)

7095021_F

DocID023303 Rev 5

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Revision History

TLVH431

Revision History

Table 9. Document revision history

Revision Changes

Date

13-Jun-2012

Initial release.

Updated the Features in cover page, Table 1: Device summary

and Table 5: Electrical characteristics for TLVH431.

23-Jan-2014

Minor text changes.

Updated the min. value of Vref in Table 5: Electrical

characteristics for TLVH431.

28-Jan-2014

24-Mar-2015

Updated Table 7: SOT23-5L mechanical data.

Minor text changes.

Updated features in cover page, Table 1: Device summary and

Table 5: Electrical characteristics for TLVH431.

23-Nov-2015

Minor text changes.

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TLVH431

IMPORTANT NOTICE – PLEASE READ CAREFULLY

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and

improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on

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acknowledgement.

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or

the design of Purchasers’ products.

No license, express or implied, to any intellectual property right is granted by ST herein.

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.

ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.

Information in this document supersedes and replaces information previously supplied in any prior versions of this document.

DocID023303 Rev 5

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