LM432 www.ti.com SNOS538D – AUGUST 2000 – REVISED MARCH 2013 LM432 Dual Op Amp with On-Chip Fixed 2.5V Reference Check for Samples: LM432 FEATURES APPLICATIONS • • • • • • • • 1 2 • • • • • Dual Op Amp Circuitry (Typical for VS= 5V) Input Offset Voltage 0.6mV Input Offset Current 1nA Input Bias Current 3nA Common-Mode Input Voltage Range 0V to VS−1V Power Supply Current 150µA Reference Circuitry Reference Voltage 2.5V Reference Voltage Deviation (−40°C to 85°C) 4mV Sink Current Capability 0.2mA to 10mA Low Cost Charging Circuitry Power Supplies and Adapters DESCRIPTION The LM432 integrates two operational amplifiers and one 2.5V reference. The reference is based on the LMV431 adjustable shunt regulator with the output voltage adjusted to a fixed 2.5V. The Op Amps are similar to the LM358 with a common-mode input range that includes ground. Integrating the reference and Op Amps creates a solution for low cost charging applications. Connection Diagram Figure 1. 8-Pin SOIC (Top View) See Package Number D Application Circuit Figure 2. Optocoupler Driver Circuit for Power Supply Isolation 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000–2013, Texas Instruments Incorporated LM432 SNOS538D – AUGUST 2000 – REVISED MARCH 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) (3) Suppy Voltage (VS) 20V −65°C to 150°C Storage Temperature Junction Temperature (TJ) 150°C ESD Human Body Model 2kV −0.3V to 20V Input Voltage Range (1) (2) (3) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. All voltages are measured with respect to GND = 0VDC, unless otherwise specified. If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. Operating Ratings (1) (2) −40°C to 85°C Temperature Range Supply Voltage (3) 2.5V to 16V Thermal Resistance(θJA) (1) 162°C/W Operating Rating indicate conditions for which the device is functional. These rating do not ensure specific performance limits. For ensured specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. All voltages are measured with respect to GND = 0VDC, unless otherwise specified. Minimum value of operating voltage is for Amplifier B only. (2) (3) Electrical Characteristics The following specifications apply for both amplifiers at VS = 5V, VCM = 2.5V, VO = 2.5V, RL = ∞, and TJ = 25°C, unless otherwise noted. Symbol Parameter Conditions Min (1) Typ (2) −4 Max (1) Units OP Amp Circuitry VOS Input Offset Voltage Amplifier B only 0.6 4 mV IOS Input Offset Current Amplifier B only 1 50 nA IB Input Bias Current Amplifier B only 3 150 nA VCM Common-Mode Input Voltage Range Amplifier B only, CMRR > 50dB IS Power Supply Current Total for both amplifiers AV Voltage Gain VS = 16V, 1V < VO < 11V, RL = 10kΩ connected to VS/2 VOL Output Voltage Low VOH Output Voltage High ISOURCE ISINK 0 150 VS-1 V 500 µA 65 100 VS – 1.5 VS – 1.3 V Output Current Source 20 30 mA Output Current Sink 5 11 mA 2 dB 50 mV Reference Circuitry For Op Amp A (The following specifications apply for IZ = 200µA and TJ = 25°C, unless otherwise noted.) Reference Voltage at IN+ Terminal VZ VZDEV Reference Voltage Deviation at IN Terminal Over Temperature (3) (4) IZ Minimum Cathode Current for Regulation at IN+ (VZ) Terminal rz (1) (2) (3) (4) (5) 2 (MIN) 2.450 2.5 2.550 V 4 65 mV 150 200 µA + Dynamic Output Impedance (5) −40°C ≤ TJ ≤ 85°C 200µA < IZ < 1mA, Freq = 0Hz 0.2 Ω Ensured to Average Outgoing Quality Level (AOQL). Typicals represent the most likely parametic norm. Reference voltage deviation, VZDEV, is defined as the maximum variation of the reference input voltage over the full temperature range. Typical Temperature drift ΔV/ΔT = 12.8ppm/°C The Dynamic Output Impendance, rz, is defined as rz = ΔVZ/ΔIZ. Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM432 LM432 www.ti.com SNOS538D – AUGUST 2000 – REVISED MARCH 2013 REVISION HISTORY Changes from Revision C (March 2013) to Revision D • Page Changed layout of National Data Sheet to TI format ............................................................................................................ 2 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: LM432 3 PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM432MA/NOPB ACTIVE SOIC D 8 95 Green (RoHS & no Sb/Br) SN | CU SN Level-1-260C-UNLIM -40 to 85 LM432 MA LM432MAX/NOPB ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) SN | CU SN Level-1-260C-UNLIM -40 to 85 LM432 MA (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device LM432MAX/NOPB Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.5 B0 (mm) K0 (mm) P1 (mm) 5.4 2.0 8.0 W Pin1 (mm) Quadrant 12.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM432MAX/NOPB SOIC D 8 2500 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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