NTE999 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Adjustable Precision Shunt Regulator

NTE999
Integrated Circuit
Adjustable Precision Shunt Regulator
Description:
The NTE999 is a three–terminal adjustable shunt regulator with guaranteed thermal stability over a
temperature range of –0° to +70°C. The output voltage may be set to any value between V_ref (approxi-
mately 2.5V) and 36V with two external resistors. This device has a typical dynamic output imped-
ance of 0.2Ω. Active output circuitry provides a very sharp turn–on characteristic, making the NTE999
an excellent replacement for zener diodes in many applications.
Features:
D Equivalent Full–Range Temperature Coefficient: 30ppm/°C Typ
D Adjustable Output Voltage
D Fast Turn–On Response
D Sink Current Capability: 1mA to 100mA
D Low Dynamic Output Impedance: 0.2Ω Typ
D Low Output Noise Voltage
Absolute Maximum Ratings: (T_A = 0° to +70°C unless otherwise specified)
Cathode Voltage (Note 1), V_KA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37V
Continuous Cathode Current Range, I_K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –100mA to 150mA
Reference Input Current Range, I_ref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50µA to 10mA
Continuous Power Dissipation, P_D
Up to +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 775mW
Derate Above +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2mW/°C
Operating Ambient Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Soldering Temperature (.0625 (1.6mm) from case for 10s), T_L . . . . . . . . . . . . . . . . . . . . . 260°C
Recommended Operating Conditions:
Cathode Voltage, V_KA
Min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_ref
Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Cathode Current (For Regulation), I_K
Min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mA
Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
Note 1. Voltage values are with respect to the anode terminal unless otherwise specified.