The document is a device modeling report for the shunt regulator part number NJM431, detailing its specifications and simulation results. It includes key parameters like saturation current, junction capacitance, and breakdown voltage, along with measurement results showing minimal simulation errors for reference voltage and dynamic impedance. Additionally, the document provides I-V characteristic data for the device.

1. Device Modeling Report
COMPONENTS: SHUNT REGULATOR
PART NUMBER: NJM431
MANUFACTURER: JRC
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

2. PSpice model
Model description
parameter
IS Saturation Current
N Emission Coefficient
RS Series Resistance
IKF High-injection Knee Current
CJO Zero-bias Junction Capacitance
M Junction Grading Coefficient
VJ Junction Potential
ISR Recombination Current Saturation Value
BV Reverse Breakdown Voltage(a positive value)
IBV Reverse Breakdown Current(a positive value)
TT Transit Time
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

3. VREF(Reference Voltage)
Circuit simulation result
Evaluation circuit
R1
1k
K
U3
REF
NJM431
A
I1
1mAdc
100
0.1u
0
Simulation Result/ VREF (V) : Condition VKA= VREF, Ik=10mA
Measurement Simulation Error
VREF 2.495 V 2.4957 V 0.028 %
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

4. ZKA (Dynamic Impedance)
Circuit simulation result
Evaluation circuit
R1
1k
K
U1
REF
I1 NJM431
A
1mAdc
100
0.1u
0
Simulation Result/ |ZKA|(ohm) : Condition VKA= VREF, Ik=1~100mA
Measurement Simulation Error
|ZKA| 0.2 ohm 0.202182 ohm 1.091 %
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

5. Output Characteristic
Circuit simulation result
Measurement
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

6. Reference
I-V Characteristic (D2)
Reverse Characteristic (Breakdown Characteristic) (D2)
All Rights Reserved Copyright (c) Bee Technologies Inc. 2004