UM602A

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

5 of 6

www.unisonic.com.tw

QW-R105-030.C



V OLT AGE REFEREN CE (Cont .)

(TA=25

C, unless otherwise specified)

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNIT

UM602A-1

2.490

2.500 2.510

V

Reference Input Voltage

UM602A-2

2.475 2.500 2.525

V

Reference Input Voltage Deviation Over

Temperature Range (Figure 1, Note 1)

7

30

mV

Temperature Coefficient of Reference Input

Voltage (Note 2)

REF

V

T

฀

฀

±22

C

Ratio of Change in Reference Input Voltage to

Change in Cathode to Anode Voltage

(Figure2)

REF

KA

V

V

฀

฀

-1.1

-2

mV/V

1.5

2.5

μA

Reference Input Current (Figure2)

=10k

3

μA

Reference Input Current Deviation Over

Temperature Range (Figure 2)

Ω,

R2=

0.5

1

μA

Minimum Cathode Current for

Regulation-(figure1)

0.5

1

mA

Off-State Cathode Current (Figure 3)

180

500

nA

temperature range.

T1

T2

Temperature

2. The temperature coefficient is defined as the slopes (positive and negative) of the voltage vs temperature

limits whithin which the reference voltage is guaranteed.

Min

2.5V

Max

25°C

Temperature

+n pm/c

-n pm/c

KA

K

V

I

฀