H431 datasheet(2/7 Pages) HSMC

2 / 7 page

HI-SINCERITY

MICROELECTRONICS CORP.

Spec. No. : IC200401

Issued Date : 2004.03.01

Revised Date : 2008.04.01

Page No. : 2/7

H431 Series

HSMC Product Specification

Functional Block Diagram & Symbol

Test Circuits

Electrical Characteristics (T

A=25

oC unless otherwise specified)

Characteristics

Symbol

Test Conditions

Min

Typ

Max

Unit

H431AN/AM/AA/AS

2.445

2.495

2.545

H431BN/BM/BA/BS

2.470

2.495

2.520

Reference Input

Voltage

(Fig1)

H431CN/CM/CA/CS

VREF

VK=VREF, IK=10mA

2.483

2.495

2.507

Deviation of Reference Input Voltage

Over-Temperature

(Fig1)

VREF(dev)

VK=VREF, IK=10mA

Tmin≤Ta≤Tmax

IK=10mA,

ΔV

K=10V to VREF

-1.4

-2.7

mV/V

Ratio of Change in Reference Input Voltage

to the Change in Cathode Voltage

(Fig2)

ΔV

REF /

ΔV

IK=10mA,

ΔV

K=36V to 10V

-1.0

-2.0

mV/V

Reference Input Current

(Fig2)

IREF

IK=10mA, R1=10kΩ,

R2=∞

Deviation of Reference Input Current Over

Full Temperature Range

(Fig2)

IREF(dev)

IK=10mA, R1=10kΩ,

R2=∞, Ta=Full Range

0.4

1.2

Minimum Cathode Current for Regulation

(Fig1)

IK(min)

VK=VREF

0.4

1.0

Off-State Cathode Current

(Fig3)

IK(off)

VK=36V, VREF=0

0.1

1.0

Dynamic Output Impedance

(Fig1)

VK=VREF, f≤1kHz

IK=1 to 100mA

0.2

0.5

Functional Block Diagram

Symbol

Fig 1. VK=VREF

Fig 2. VK>VREF

Fig 3. Off-State Current

Reference

Anode

Cathode

IOFF

IREF

VREF

Note: VK=VREF(1+R1/R2)+IREFxR1

Anode

Reference

Cathode

REF

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