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NCP431B Dataheets PDF



Part Number NCP431B
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description Programmable Precision References
Datasheet NCP431B DatasheetNCP431B Datasheet (PDF)

Programmable Precision References NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series The NCP431/NCP432 integrated circuits are three−terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V using two external resistors. These devices exhibit a wide operating current range of 40 mA to 100 mA with a typical dynamic impedance of 0.22 W. The characteristics of these references ma.

  NCP431B   NCP431B


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Programmable Precision References NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series The NCP431/NCP432 integrated circuits are three−terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V using two external resistors. These devices exhibit a wide operating current range of 40 mA to 100 mA with a typical dynamic impedance of 0.22 W. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the NCP431/ NCP432 operates as a shunt regulator, it can be used as either a positive or negative voltage reference. Low minimum operating current makes this device an ideal choice for secondary regulators in SMPS adapters with extremely low no−load consumption. Features • Programmable Output Voltage to 36 V • Low Minimum Operating Current: 40 mA, Typ @ 25°C • Voltage Reference Tolerance: ±0.5%, Typ @ 25°C (NCP431B/NCP432B) • Low Dynamic Output Impedance, 0.22 W Typical • Sink Current Capability of 40 mA to 100 mA • Equivalent Full−Range Temperature Coefficient of 50 ppm/°C Typical • Temperature Compensated for Operation over Full Rated Operating Temperature Range • SC Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable • These are Pb−Free Devices Typical Applications • Voltage Adapters • Switching Power Supply • Precision Voltage Reference • Charger • Instrumentation www.onsemi.com Pin 1. Reference 123 2. Anode 3. Cathode STRAIGHT LEAD BULK PACK 1 2 3 BENT LEAD TAPE & REEL AMMO PACK TO−92 LP SUFFIX CASE 29−10 TO−92 LPRA SUFFIX CASE 29−10 8 1 SOIC−8 NB D SUFFIX CASE 751 Cathode Anode Anode NC 1 (Top View) Reference Anode Anode NC 3 1 2 SOT−23 SN SUFFIX CASE 318 NCP431/SC431 Pin 1. Reference 2. Cathode 3. Anode NCP432/SC432 Pin 1. Cathode 2. Reference 3. Anode ORDERING AND MARKING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. © Semiconductor Components Industries, LLC, 2011 1 April, 2021 − Rev. 17 Publication Order Number: NCP431/D NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series Cathode (K) Reference (R) Cathode (K) Reference (R) Anode (A) Figure 1. Symbol 2.5 Vref Anode (A) Figure 2. Representative Block diagram This device contains 20 active transistors MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted) Symbol Rating Value Unit VKA Cathode to Anode Voltage IK Cathode Current Range, Continuous Iref Reference Input Current Range, Continuous TJ Operating Junction Temperature TA Operating Ambient Temperature Range Tstg Storage Temperature Range PD Total Power Dissipation @ TA = 25°C Derate above 25°C Ambient Temperature D, LP Suffix Plastic Package SN1 Suffix Plastic Package 37 V −100 to +150 mA −5 to +10 mA 150 °C −40 to +125 °C −65 to +150 °C W 0.70 0.52 PD Total Power Dissipation @ TC = 25°C Derate above 25°C Case Temperature D, LP Suffix Plastic Package 1.5 W HBM CDM ESD Rating (Note 1) Human Body Model per JEDEC JESD22−A114F Charged Device Model per JEDEC JESD22−C101E V >2000 >1000 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. This device contains latch−up protection and exceeds ±100 mA per JEDEC standard JESD78. RECOMMENDED OPERATING CONDITIONS Symbol Condition Min Max Unit VKA Cathode to Anode Voltage Vref 36 V IK Cathode Current 0.04 100 mA Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. THERMAL CHARACTERISTICS Symbol RQJA RQJL Characteristic Thermal Resistance, Junction−to−Ambient Thermal Resistance, Junction−to−Lead (Lead 3) LP Suffix Package (50 mm2 x 35 mm Cu) 176 D Suffix Package (50 mm2 x 35 mm Cu) 210 SN Suffix Package (10 mm2 x 35 mm Cu) 255 Unit °C/W 75 68 80 °C/W www.onsemi.com 2 NCP431A, SC431A, NCP431B, SC431B, NCP432B, SC432B Series ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted.) NCP431AC NCP431AI NCP431AV/ SC431AV Symbol Characteristic Min Typ Max Min Typ Max Min Typ Max Unit Vref DVrefT DVref DVKA Reference Input Voltage VKA = Vref, IK = 1 mA TA = 25°C TA = Tlow to Thigh (Figure 3, Note 2) V 2.475 2.500 2.525 2.475 2.500 2.525 2.475 2.500 2.525 2.475 2.500 2.525 2.465 2.500 2.525 2.460 2.500 2.525 Reference In.


NCP431A NCP431B NCP432B


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