NJM431

- 2 -

Ver.2025-02-18

NJM431D is the NRND product.

■ BLOCK DIAGRAM

■ ABSOLUTE MAXIMUM RATINGS

(Ta=25°C)

PARAMETER

SYMBOL

RATINGS

UNIT

Cathode Voltage (note)

VKA

37

V

Continuous Cathode Current

IK

-100 to 150

mA

Reference Input Current

IREF

-0.05 to 10

mA

Power Dissipation

PD

(DIP8)

700 *1

(DMP8)

300 *1

(SOT89)

350 *1

mW

mW

mW

Operating Temperature

Topr

-40 to +85

ºC

Storage Temperature Range

Tstg

-40 to +125

ºC

(note) Unless specified, all voltage value are with respect to the anode terminal.

*1) IC alone

■ RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Cathode Voltage

VKA

VREF

-

36

V

Cathode Current

IK

1

-

100

mA

■ ELECTRICAL CHARACTERISTICS (Ta=25ºC)

PARAMETER

SYMBOL

TEST CONDITION

MIN.

TYP.

MAX.

UNIT

Reference Voltage

VREF

VKA = VREF

IK = 10mA (note 1)

NJU431M/NJU431D/NJM431U

2440

2495

2550

mV

NJM431U-A

2470

2495

2520

Reference Voltage Change

(Full Oper. Temp. Range)

VREF

(dev)

VKA = VREF, IK = 10mA (note 1)

Ta = -20ºC to +85 ºC

-

8

17

mV

Reference Voltage Change

vs. Cathode Voltage Change

ΔVREF

ΔVKA

IK= 10mA (note 2)

ΔVKA= 10V - VREF

-

-1.4

-2.7

mV/V

ΔVKA= 36V - 10V

-

-1

-2

mV/V

Reference Input Current

IREF

IK= 10mA, R1 = 10kΩ, R2 = ∞ (note 2)

-

2

4

μA

Reference

Input

Current

Change

(Full Oper. Temp. Range)

IREF

(dev)

IK= 10mA, R1 = 10kΩ, R2 = ∞ (note 2)

Ta = -20ºC to +85 ºC

-

0..4

1.2

μA

Minimum Input Current

IMIN

VKA = VREF (note 1)

-

0.4

1.0

mA

Cathode Current (Off Cond.)

IOFF

VKA = 36V, VREF = 0 (note 3)

-

0.1

1.0

μA

Dynamic Impedance

|ZKA|

VKA = VREF, IK= 1mA to 100mA,

f ≤ 1kHz (note 1)

-

0.2

0.5

Ω

(note 1) TEST CIRCUIT (Fig. 1)

(note 2) TEST CIRCUIT (Fig. 2)

(note 3) TEST CIRCUIT (Fig. 3)