MachineU > China Products > Electrical Equipment & Supplies > Power Supplies > Voltage Regulators/Stabilizers
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
Specifications
Brand Name :
Original
Model Number :
TLV431BQDBZR
Place of Origin :
Original
MOQ :
10pcs
Price :
comtact us to win best offer
Payment Terms :
L/C, T/T, Western Union,Paypal
Supply Ability :
10000pcs/months
Delivery Time :
1-3 workdays
Packaging Details :
standard
Installation style :
SMD/SMT
Package/box :
SOT-23-3
Packaging :
the biennial Reel/Cut Tape/MouseReel
Unit weight :
8 mg
Initial accuracy :
0.5 %
Description

TLV431x Low-Voltage Adjustable Precision Shunt Regulator

1 Features

• Low-Voltage Operation, VREF = 1.24 V
• Adjustable Output Voltage, VO = VREF to 6 V
• Reference Voltage Tolerances at 25°C
– 0.5% for TLV431B
– 1% for TLV431A
– 1.5% for TLV431
• Typical Temperature Drift
– 4 mV (0°C to 70°C)
– 6 mV (–40°C to 85°C)
– 11 mV (–40°C to 125°C)
• Low Operational Cathode Current, 80 µA Typical
• 0.25-Ω Typical Output Impedance
• Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3
• See TLVH431 and TLVH432 for:
– Wider VKA (1.24 V to 18 V) and IK (80 mA)
– Additional SOT-89 Package
– Multiple Pinouts for SOT-23-3 and SOT-89 Packages
• On Products Compliant to MIL-PRF-38535, All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production
Processing Does Not Necessarily Include Testing of All Parameters.

2 Applications


• Adjustable Voltage and Current Referencing
• Secondary Side Regulation in Flyback SMPSs
• Zener Replacement
• Voltage Monitoring
• Comparator With Integrated Reference

3 Description

The TLV431 device is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 6 V with two external resistors (see the Parameter Measurement Information section). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLV431 device is an ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turnon characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

Device Information(1)

PART NUMBER PACKAGE (PIN) BODY SIZE (NOM)

TLV431x

 SOT-23 (3) 2.90 mm × 1.30 mm
SOT-23 (5) 2.90 mm × 1.60 mm
SC70 (6) 2.00 mm × 1.25 mm
TO-92 (3) 4.30 mm × 4.30 mm
SOIC (8) 4.90 mm × 3.90 mm

For all available packages, see the orderable addendum at the end of the data sheet.

4.Specifications

4.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)

MIN MAX UNIT
VKA Cathode voltage(2) 7 V
IK Continuous cathode current –20 20 mA
Iref Reference current –0.05 3 mA
Operating virtual junction temperature 150 °C
Tstg Storage temperature –65 150 °C

(1) Stresses beyond 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-maximum-rated conditions for extended periods may affect device reliability.

(2) Voltage values are with respect to the anode terminal, unless otherwise noted.

4.2 ESD Ratings

PARAMETER DEFINITION VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) ±2000

V
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(2) ±1000

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

4.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VKA Cathode voltage VREF 6 V
IK Cathode current 0.1 15 mA

TA Operating free-air temperature

 TLV431_C 0 70

°C
TLV431_I –40 85
TLV431_Q –40 125

4.4 Thermal Information

THERMAL METRIC(1)

 TLV431x

UNIT
DCK D PK DBV DBZ LP
6 PINS 8 PINS 3 PINS 5 PINS 3 PINS 3 PINS
RθJA Junction-to-ambient thermal resistance 87 97 52 206 206 140 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 259 39 9 131 76 55 °C/W

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report (SPRA953).

4.1 Electrical Characteristics for TLV431

at 25°C free-air temperature (unless otherwise noted)

PARAMETER

T

EST CONDITIONS

 TLV431

UNIT
MIN TYP MAX

VREF

Reference voltage

VKA = VREF, IK = 10 mA

 TA = 25°C 1.222 1.24 1.258

V

TA = full range(1)

(see Figure 22)

 TLV431C 1.21 1.27
TLV431I 1.202 1.278
TLV431Q 1.194 1.286

VREF(dev)

VREF deviation over full temperature range(2)

VKA = VREF, IK = 10 mA(1)

(see Figure 22)

 TLV431C 4 12

mV
TLV431I 6 20
TLV431Q 11 31

OVREF

OVKA

 Ratio of VREF change in cathode voltage change

VKA = VREF to 6 V, IK = 10 mA

(see Figure 23)

–1.5

–2.7

mV/V

Iref

Reference terminal current

IK = 10 mA, R1 = 10 kΩ,

R2 = open

(see Figure 23)

0.15

0.5

µA

Iref(dev)

Iref deviation over full temperature range(2)

IK = 10 mA, R1 = 10 kΩ,

R2 = open(1)

(see Figure 23)

 TLV431C 0.05 0.3

µA
TLV431I 0.1 0.4
TLV431Q 0.15 0.5
IK(min) Minimum cathode current for regulation VKA = VREF (see Figure 22) TLV431C/I 55 80

µA
TLV431Q 55 100
IK(off) Off-state cathode current VREF = 0, VKA = 6 V (see Figure 24) 0.001 0.1 µA
|zKA| Dynamic impedance(3)

VKA = VREF, f ≤ 1 kHz, IK = 0.1 mA to 15 mA

(see Figure 22)

 0.25 0.4 Ω

(1) Full temperature ranges are –40°C to 125°C for TLV431Q, –40°C to 85°C for TLV431I, and 0°C to 70°C for TLV431C.

Product tags

avr sx460 voltage regulator

,

tdgc voltage regulator

,

sx460 voltage regulator
Send your message to this supplier
Send Now

TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators

Ask Latest Price
Product Detail
Brand Name :
Original
Model Number :
TLV431BQDBZR
Place of Origin :
Original
MOQ :
10pcs
Price :
comtact us to win best offer
Payment Terms :
L/C, T/T, Western Union,Paypal
Contact Supplier
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators
TLV431BQDBZR Lo-Vtg Adj Precision Shunt Regulator Integrated Circuits Voltage Regulators

Walton Electronics Co., Ltd.

Active Member
4 Years
shenzhen
Since 2004
Business Type :
Trading Company
Main Products :
Integrated Circuit Chip, Transistor IC Chip, Temperature Sensor Chip
Employee Number :
50~100
Certification Level :
Active Member
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Integrated Circuit Chip
MachineU China Products Electrical Equipment & Supplies Power Supplies Voltage Regulators/Stabilizers
Contact Supplier
Submit Requirement