TA76431F/FR TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA76431F, TA76431FR Adjustable Precision Shunt Regulator Features • Precision Reference Voltage: VREF = 2.495 V ± 2% • Small Temperature Coefficient: |αVREF| = 46 ppm/°C • Adjustable Output Voltage: VREF ≤ VOUT ≤ 36 V • Low Dynamic Output Impedance: |ZKA| = 0.15 Ω (Typ.) • Small Flat Package • TA76431FR is a new Toshiba shunt regulator. This device’s pin assignment is the reverse of that of the TA76431F. Weight: 0.05 g (typ.) Functional Block Diagram Circuit Symbol Reference (REF) Cathode (K) Reference (REF) Cathode (K) Anode (A) Anode (A) This IC contains electrostatic sensitive elements. Please take care to avoid generating static electricity when handling these devices. Marking (1) TA76431F (2) TA76431FR Part No. (or abbreviation code) A S Part No. (or abbreviation code) B A line indicates lead (Pb)-free package or lead (Pb)-free finish. Lot No. (weekly code) S Lot No. (weekly code) A line indicates lead (Pb)-free package or lead (Pb)-free finish. Pin Assignment 1 2 3 No. (1) TA76431F (2) TA76431FR 1 Cathode (K) Reference (REF) 2 Anode (A) Anode (A) 3 Reference (REF) Cathode (K) 1 2006-11-06 TA76431F/FR How to Order No. (1) (2) Product No. Package Type Minimum Order Packing Type TA76431F On cut tape (TE12L): 100/tape section TA76431F (TE12L) TA76431FR Embossed tape: 1000/tape PW-MINI (SOT-89) (surface-mount type) 1 tape On cut tape (TE12L): 100/tape section TA76431FR (TE12L) Embossed tape: 1000/tape 100 100 1 tape Equivalent Circuit Q4 Q3 Q2 Q11 R5 Q5 R7 C2 R6 C1 R2 Q10 R4 Reference R3 Cathode Q1 Q6 Q7 R1 Q8 R8 Q9 R9 Anode Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Cathode voltage VKA 37 V Cathode current IK −100~150 mA Reference voltage VREF 7 V Reference current IREF 50 μA Reference-anode reverse current −IREF 10 mA 500 Power dissipation (Ta = 25°C) PD Operating temperature Topr −40~85 °C Storage temperature Tstg −55~150 °C 1000 (Note) mW 2 Note 1: Mounted on ceramic substrate (250 mm × 0.8 mm t) Note 2: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling Precautions”/Derating Concept and Methods) and individual reliability data (i.e. reliability test report and estimated failure rate, etc). 2 2006-11-06 TA76431F/FR Recommended Operating Conditions Characteristics Symbol Min Typ. Max Unit Cathode voltage VKA VREF ⎯ 36 V Cathode current IK 1 ⎯ 100 mA Topr −40 ⎯ 85 °C Operating temperature Electrical Characteristics (Unless otherwise specified, Ta = 25°C, IK = 10 mA) Characteristics Reference voltage Symbol VREF Deviation of reference input voltage over temperature VREF (dev) Ratio of change in reference input voltage to the change in cathode voltage ΔVREF/ΔV Reference Input current Deviation of reference input current over temperature IREF IREF (dev) Test Condition Min Typ. Max Unit 2.440 2.495 2.550 V 0°C < = Ta < = 70°C, VKA = VREF ⎯ 8 17 mV VREF < = VKA < = 10 V ⎯ 0.8 2.7 10 V < = VKA < = 36 V ⎯ 0.5 2.0 VKA = VREF ⎯ 1.4 4 μA 0°C < = Ta < = 70°C, VKA = VREF, R1 = 10 kΩ, R2 = ∞ ⎯ 0.3 1.2 μA VKA = VREF mV/V Minimum cathode current for regulation IKmin VKA = VREF ⎯ 0.4 1.0 mA Off-State cathode current IKoff VKA = 36 V, VREF = 0 V ⎯ ⎯ 1.0 μA ⎪ZKA⎪ VKA = VREF, f < = 1 kHz, 1 mA < = IK < = 100 mA ⎯ 0.15 0.5 Ω max VREF (dev) The deviation parameters VREF (dev) and IREF (dev) are defined as the maximum variation of the VREF and IREF over the rated temperature range. The average temperature coefficient of the VREF is defined as: VREF Dynamic impedance min ⎛ VREF (dev) ⎞ ⎜ ⎟ × 10 6 ⎜ VREF @25°C ⎟ ⎝ ⎠ (ppm °C ) αVREF = ΔTa ΔTa 3 2006-11-06 TA76431F/FR Test Parameter (1) VKA = VREF Mode Input RSD (2) VKA > VREF Mode RSD Input VKA R2 R1 IK VREF VKA IK IREF VREF ⎛ R ⎞ VKA = VREF ⎜⎜ 1 + 1 ⎟⎟ + IREF ⋅ R1 R 2⎠ ⎝ (3) OFF-State Mode Input RSD VKA IKoff Typical Application Circuits (1) 2.5 V Reference (2) Shunt Regulator VIN RSD VOUT R1 VIN R2 VOUT ∼ − 2.5 V GND ⎛ R ⎞ VOUT = VREF ⎜⎜ 1 + 1 ⎟⎟ + IREF ⋅ R1 R 2⎠ ⎝ 4 2006-11-06 TA76431F/FR IK – VKA VREF – Ta 2600 150 50 (mV) 100 IK VKA = VREF Ta = 25°C 0 −50 −100 −2.0 −1.0 0 1.0 Cathode voltage 2.0 VKA 3.0 IK = 10 mA VREF max = 2550 mV 2520 VREF typ. = 2495 mV 2480 2440 VREF min = 2440 mV −40 0 Ta = 25°C IK min 200 0 1.0 Cathode voltage 2.0 VKA 3.0 4.0 −20 VKA Input −30 VREF IK IK = 10 mA Ta = 25°C −40 0 10 (V) 20 IKoff – Ta VKA 40 50 (V) IREF – Ta 4 VKA Input IREF (μA) IKoff 30 VKA = 36 V VREF = 0 V 10 5 3 −40 0 40 80 120 3 IREF IK = 10 mA 2 1 0 160 Ambient temperature Ta (°C) VKA IK 10kΩ Input 50 Reference current IKoff (nA) Off state cathode current 30 Cathode voltage 100 1 160 −10 R1 VKA = VREF 0 120 0 R2 VKA −1.0 80 ΔVREF – VKA IK −200 −2.0 40 Ambient temperature Ta (°C) (V) Change in reference voltage ΔVREF (mV) (μA) IK Cathode current 400 IK VREF IK – VKA Input Input 2560 2400 −80 4.0 800 600 VKA VKA = VREF VKA Reference voltage VREF Cathode current IK (mA) Input −40 0 40 80 120 Ambient temperature Ta (°C) 5 2006-11-06 TA76431F/FR ZKA – f AV – f 50 RS ＞ ZKA 10 eo = 5 ei 3 1 0.5 ei RS ・ZKA e ∴ ZKA = o ・RS ei GND Ta = 25°C VKA = VREF 1 mA ≦ −IK ≦ 100 mA 0.3 0.1 1k 10 k 100 k Frequency f 50 1M 10 μF VIN 40 30 20 0 10 k 100 k 1M Input Allowable power dissipation PD 3 Output 220 Ω Output Pulse Generator 1 0 0 50 Ω Voltage swing (Ｖ) 0 Input monitor f = 100 kHz GND 1 2 3 10 M (Hz) PD max – Ta max (W) Pulse response 2 GND 10 Frequency f 5 VOUT IK = 10 mA Ta = 25°C −10 1k (Hz) IK 220 Ω RS ei ・ZKA RS + ZKA 10 kΩ IK eo = 10 kΩ eo AV (dB) 220 Ω Open loop voltage gain Dynamic impedance ZKA (Ω) 30 60 4 5 1.4 (1) Mounted on ceramic substate 2 (250 mm × 0.8 mm t) 1.2 1.0 (2) Ta = 25°C (1) 125°C/W 0.8 0.6 (2) 250°C/W 0.4 0.2 0 0 6 20 Time t (μs) 40 60 80 100 120 140 160 Ambient temperature Ta (°C) Safe operating area 100 A. Unstable Test circuit for curve A 150 Ω Ta = 25°C Cathode current IK (mA) A. VKA = VREF 80 B. VKA = 5 V @IK = 10 mA C. VKA = 10 V @IK = 10 mA B. Unstable Stable CL D. VKA = 15 V @IK = 10 mA Stable 60 Test circuit for curve B, C, D 150 Ω 40 IK D. Unstable 20 CL C. Unstable 0 0.001 IK 0.003 0.01 0.03 0.1 0.3 1 3 5 10 30 100 Load capacitance CL (μF) 6 2006-11-06 TA76431F/FR Package Dimensions Weight: 0.05 g (typ.) 7 2006-11-06 TA76431F/FR RESTRICTIONS ON PRODUCT USE 20070701-EN • The information contained herein is subject to change without notice. • TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc. • The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his document shall be made at the customer’s own risk. • The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. • The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patents or other rights of TOSHIBA or the third parties. • Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. 8 2006-11-06