H431BA datasheet(2/4 Pages) HSMC

2 / 4 page

HI-SINCERITY

MICROELECTRONICS CORP.

Spec. No. : HA200216

Issued Date : 1998.04.08

Revised Date : 2002.08.27

Page No. : 2/4

H431AA, H431BA, H431CA

HSMC Product Specification

Functional Block Diagram & Symbol

Test Circuits

Electrical Characteristics ( Ta=25

°C unless otherwise specified )

Characteristics

Symbol

Test Conditions

Min

Typ

Max

Unit

H431AA

2.445 2.495 2.545

H431BA

2.470 2.495 2.520

Reference Input Voltage

H431CA

REF

KA=VREF, IK=10mA

2.480 2.495 2.510

Deviation of Reference Input Voltage

Over-Temperature

REF(dev)

KA=VREF, IK=10mA

min≤Ta≤Tmax

-4

K=10mA,

∆V

KA=10V-VREF

-1.4

-2.7

Ratio of Change in Reference Input

Voltage to the Change in Cathode

Voltage

∆V

REF /

∆V

K=10mA,

∆K

KA=36V-10V

-1.0

-2.0

Reference Input Current

REF

K=10mA, R1=10kΩ,

2=∞

-2

Deviation of Reference Input Current

Over Full Temperature Range

REF(dev)

K=10mA, R1=10kΩ,

2=∞, Ta=Full Range

-0.4

1.2

Minimum Cathode Current for

Regulation

K(min)

KA=VREF

-0.4

1.0

Off-State Cathode Current

K(off)

KA=36V, VREF=0

0.1

1.0

Dynamic impedance

KA=VREF, f≤1.0KHz

K=1 to 100mA

-0.2

0.5

Ω

Functional Block Diagram :

Symbol :

Cathode

Reference

Anode

Cathode

VREF

Reference

Anode

IREF

VREF

Fig1. Test Circuit for VZ=VREF

IREF

VREF

Fig 2. Test Circuit for VZ>VREF

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

Fig3. Test Circuit for Off-State

Current

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