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ATL432LIBQDBZRQ1 +BOM

Automotive, high-bandwidth, low-IQ programmable shunt regulator (pinout: RKA)

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ATL432LIBQDBZRQ1
Datasheet:

ATL432LIBQDBZRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Reference Type:

Shunt
Output Type:

Adjustable
Voltage - Output (Min/Fixed):

2.5V
EDA/CAD Models:

Request Free CAD Models for ATL432LIBQDBZRQ1

ATL432LIBQDBZRQ1 General Description

The ATL43xLI-Q1 is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. Its output voltage can be set to any value between V_ref (approximately 2.5 V) and 36 V with two external resistors. The device has a typical output impedance of 0.3 Ω. Its active output circuitry provides a very sharp turn-on characteristic, making it an excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. This device is a pin-to-pin alternative to the TL431LI-Q1 and TL432LI-Q1, with lower minimum operating current to help reduce system power consumption. The ATL432LI-Q1 has exactly the same functionality and electrical specifications as the ATL431LI-Q1, but has a different pinout for the DBZ package.

The ATL431LI-Q1 is offered in two grades, with initial tolerances (at 25°C) of 0.5%, and 1%, for the B and A grade, respectively. The ATL43xLI-Q1 is characterized for operation from –40°C to +125°C, and its low output drift versus temperature ensures good stability over the entire temperature range.

Key Features

Qualified for automotive applications
AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
Reference voltage tolerance at 25°C
- 0.5% (B grade)
- 1% (A grade)
Minimum typical output voltage: 2.5 V
Adjustable output voltage: V_ref to 36 V
Operation from −40°C to +125°C
27 mV maximum temperature drift
0.3-Ω typical output impedance
Sink-current capability
- I_min = 0.08 mA (max)
- I_KA = 15 mA (max)
Reference input current I_REF: 0.4 µA (max)
Deviation of reference input current over temperature, I_I(dev): 0.3 µA (max)

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Reference	Series	Automotive, AEC-Q100
Reference Type	Shunt	Output Type	Adjustable
Voltage - Output (Min/Fixed)	2.5V	Voltage - Output (Max)	36 V
Current - Output	15 mA	Tolerance	±0.5%
Temperature Coefficient	-	Noise - 0.1Hz to 10Hz	-
Noise - 10Hz to 10kHz	-	Voltage - Input	-
Current - Supply	-	Current - Cathode	80 µA
Operating Temperature	-40°C ~ 125°C (TA)	Mounting Type	Surface Mount
Base Product Number	ATL432