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LM431AC

ApplicationEquivalent full-range temperature coefficient: 30ppm/°C0.2Ω typical output impedanceSink current capability: 1mA to 100mALow output noiseAdjustable output voltage: VREF to 36VPinoutSpecificationsVKA Cathode voltage (see Note 1)37 V Continuous cathode current range 100 to +150 mARe...

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SeekIC No. : 004395702 Detail

LM431AC: ApplicationEquivalent full-range temperature coefficient: 30ppm/°C0.2Ω typical output impedanceSink current capability: 1mA to 100mALow output noiseAdjustable output voltage: VREF to 36VPinout...

LM431AC Data Sheet

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Part Number:
LM431AC
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5000

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Product Details

Description



Application

Equivalent full-range temperature coefficient: 30ppm/°C
0.2Ω typical output impedance
Sink current capability: 1mA to 100mA
Low output noise
Adjustable output voltage: VREF to 36V


Pinout

Connection Diagram


Specifications

VKA          Cathode voltage (see Note 1)                                                                                     37                     V
                Continuous cathode current range                                                            100 to +150                   mA
                Reference input current range                                                                        0.05 to 10                   mA
                Operating free-air temperature range
Tamb              C suffix                                                                                                        0 to +70                    °C
                      I suffix                                                                                                      40 to +85                   °C
TSTG        Temperature storage range                                                                           65 to 150                    °C
                Lead temperature 1.6mm (1/16 in.) from case for 10 sec: D or P pkgs                     260                    °C
                Lead temperature 1.6mm (1/16 in.) from case for 60 sec: LP pkg                             300                    °C


Description

The LM431AC and TL431A are 3-terminal adjustable shunt regulators with specified thermal stability over applicable automotive and commercial temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5V) and 36V with two external resistors (see Figure 4). These devices have a typical output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for zener diodes in many applications like on-board regulation, adjustable power supplies and switching power supplies.

The LM431AC and TL431AC are characterized for operation from 0°C to +70°C; the TL431I and TL431AI are characterized for operation from 40°C to +85°C.




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