APL431LBYI-TB中文资料

APL431L

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.Features

General Description

Applications

The APL431L is a 3-terminal low voltage adjustable precision reference with specified thermal stability over applicable commercial temperature ranges. Out-put voltage may be set to any value between V ref (1.24 V) and 20 V with two external resistors (see Fig-ure 2). When used with an photocoupler, the APL431L is an ideal voltage reference in isolated feed-back circuits for 3V to 12V switching-mode power supplies. This device has a typical output imped-ance of 0.1?. Active output circuitry provides a very sharp turn-on characteristic, making the APL431L ex-cellent replacements for zener diodes in many applications, including on-board regulation and ad-justable power supplies.

? Precise Reference Voltage to 1.24V

? Guaranteed 0.5% or 1% Reference Voltage

Tolerance

? Sink Current Capability, 80uA to 100mA ? Quick Turn-on

? Adjustable Output Voltage, V O = V REF to 20V ? Low Operational Cathode Current, 80μA

Typical

? 0.1? Typical Output Impedance

? SOT-23-3, SOT-23-5, TO-92 and SOT-89

Packages

? Lead Free Available (RoHS Compliant)

? Linear Regulators

? Adjustable Power Supply ? Switching Power Supply

Symbol

Functional Diagram

SOT-23-3 (Top View)

REF ANODE

CATHODE

SOT-89 (Top View)

REF

ANODE CATHODE

123

REF

ANODE

CATHO DE

21TO-92 (Top View)Cathode

Anode

REF

REF NC

CATHODE

ANODE 1

45SOT-23-5 (Top View)

APL431L

Ordering and Marking Information

Notes： ANPEC lead-free products contain molding compounds/die attach materials and 100% matte in plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature.

Absolute Maximum Ratings

APL431L

Electrical Characteristics T A = 25°C ( unless otherwise noted)

Notes : 1.Full temperature range is 0°C to 70°C for APL431LXXC,and -40°C to 85°C for APL431LXXl.

Test Figures

Figure 1. Test Circuit for V KA =V REF , V O =V KA =V REF Figure 3. Test Circuit for I K(off)

V IN

V o

APL431L

Test Figures (Cont.)

Figure 2. Test Circuit for V KA >V REF ,

V O = V KA = V REF × (1+R 1/R 2) + I REF × R 1

V IN

V o

Application Schematic

V o

Precision Voltage Reference

V o

V IN

Precision High-Current Series Regulator

Notes for Application Circuits:

1) T o improve the stability of output voltage, a 0.1μF capacitor between cathode and anode of APL431L is strongly recommended.

2)Set V OUT according to the following equation: V OUT = V REF (1+R1/R2)+l REF R1

3)Choose the value for R B as follows:

A)The maximum limit for R B should be such that the cathode current(l K ) is greater than the mini mum operating current (80μA) at V IN(MIN). B)The minimum limit for RB should be such that the cathode current (l K ) does not exceed 100mA under all load conditions, and the instantaneous turnon value for lk does not exceed 150mA. Both of the following conditions must. be met: V IN(MAX)

150mA V IN(MAX)-V OUT

l OUT(MIN)+100mA

(to limit instantaneous turn-on l K ) R B,Min ≥(to limit l K under normal operating conditions)

R B,Min ≥

0.08

0.10

0.12

0.14

0.16

0.18

-50

-25

100

125

150

1.22

1.23

1.24

1.25

1.26

-50

-25

100

125

150

Junction Temperature (°C)R e f e r e n c e V o l t a g e (V )

R e f e r e n c e I n p u t C u r r e n t (μA )

Junction Temperature (°C)

Referemce Voltage vs.Junction Temperature

Reference Input Current vs.Junction Temperature

APL431L

0.1

0.2

0.3

0.4

0.5

-50

-25

100

125

150

μ0

μ3V

μ5S

μ0

03V

Typical Characteristics

Input

R a t i o o f D e l t a R e f e r e n c e V o l t a g e t o

Junction Temperature (°C)

O f f S t a t e C a t h o d e C u r r e n t (μA )

Off State Cathode Current vs.

Junction Temperature

/?V vs. Junction Temperature

I KA =1mA

Output

Input

Output

T A =25°C

I KA =0.1mA

T A =25°C

APL431L

10203040506070

80901000.0001

0.0010.010.11

-10

010203040

5060

100150200250300350

0.01

0.1

100

1000

10000

100000

1000000

Typical Characteristics

Frequency (Hz)

Z k a (?)

Frequency (Hz)G a i n (d B )

P h a s e S h i f t (d e g r e e )

Gain vs. Phase Shift vs. Frequency

Zka vs. Frequency

Load Capacitance (μF)

I k (m A )

Stability Boundary Conditions

APL431L

Package Information SOT-23

APL431L

Package Information SOT-23-5

APL431L

Package Information TO-92

APL431L

Package Information

SOT-89 (Reference EIAJ ED-7500A Reg stration SC-62)

APL431L

Physical Specifications

T L

T P

T e m p e r a t u r e

Tim e

Reflow Condition (IR/Convection or VPR Reflow)

Classificatin Reflow Profiles

APL431L

Reliability Test Program

Carrier Tape & Reel Dimensions

APL431L

Carrier Tape & Reel Dimensions

(mm)

APL431L

Cover Tape Dimensions

Customer Service

Anpec Electronics Corp.

Head Office :

5F, No. 2 Li-Hsin Road, SBIP,

Hsin-Chu, T aiwan, R.O.C.

T el : 886-3-5642000

Fax : 886-3-5642050

Taipei Branch :

7F, No. 137, Lane 235, Pac Chiao Rd.,

Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.

T el : 886-2-89191368

Fax : 886-2-89191369