TA76431F

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 Reference (REF) Cathode (K) Circuit Symbol Cathode (K) Reference (REF) 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 Part No. (or abbreviation code) (2) TA76431FR Part No. (or abbreviation code) A Lot No. (weekly code) S A line indicates lead (Pb)-free package or lead (Pb)-free finish. B Lot No. (weekly code) S A line indicates lead (Pb)-free package or lead (Pb)-free finish. Pin Assignment No. 1 2 1 2 3 3 (1) TA76431F Cathode (K) Anode (A) Reference (REF) (2) TA76431FR Reference (REF) Anode (A) Cathode (K) 1 2006-11-06 TA76431F/FR How to Order No. (1) Product No. TA76431F TA76431F (TE12L) TA76431FR TA76431FR (TE12L) PW-MINI (SOT-89) (surface-mount type) Package Type Packing Type On cut tape (TE12L): 100/tape section Embossed tape: 1000/tape On cut tape (TE12L): 100/tape section Embossed tape: 1000/tape Minimum Order 100 1 tape 100 1 tape (2) Equivalent Circuit Cathode R3 Q4 Q3 C1 Q2 Reference Q10 Q11 R5 Q5 C2 R4 R6 R7 R2 Q1 Q6 R9 Q9 R8 Anode Absolute Maximum Ratings (Ta = 25°C) Characteristics Cathode voltage Cathode current Reference voltage Reference current Reference-anode reverse current Power dissipation (Ta = 25°C) Operating temperature Storage temperature Symbol VKA IK VREF IREF −IREF PD Topr Tstg 2 Rating 37 −100~150 7 50 10 500 1000 (Note) −40~85 −55~150 Unit V mA V μA mA mW °C °C 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). R1 Q8 Q7 2 2006-11-06 TA76431F/FR Recommended Operating Conditions Characteristics Cathode voltage Cathode current Operating temperature Symbol VKA IK Topr Min VREF 1 −40 Typ. ⎯ ⎯ ⎯ Max 36 100 85 Unit V mA °C Electrical Characteristics Characteristics Reference voltage Deviation of reference input voltage over temperature Ratio of change in reference input voltage to the change in cathode voltage Reference Input current Deviation of reference input current over temperature Minimum cathode current for regulation Off-State cathode current Dynamic impedance (Unless otherwise specified, Ta = 25°C, IK = 10 mA) Symbol VREF VREF (dev) ΔVREF/ΔV IREF IREF (dev) IKmin IKoff ⎪ZKA⎪ VKA = VREF 0°C < Ta < 70°C, VKA = VREF = = VREF < VKA < 10 V = = 10 V < VKA < 36 V = = VKA = VREF 0°C < Ta < 70°C, VKA = VREF, = = R1 = 10 kΩ, R2 = ∞ VKA = VREF VKA = 36 V, VREF = 0 V VKA = VREF, f < 1 kHz, = 1 mA < IK < 100 mA == Test Condition Min 2.440 ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ Typ. 2.495 8 0.8 0.5 1.4 0.3 0.4 ⎯ 0.15 Max 2.550 17 2.7 2.0 4 1.2 1.0 1.0 0.5 Unit V mV mV/V μA μA mA μA Ω ⎛ VREF (dev) ⎞ ⎜ ⎟ × 10 6 ⎜ VREF @25°C ⎟ ⎝ ⎠ (ppm °C ) αVREF = ΔTa min ΔTa 3 2006-11-06 VREF (dev) VREF 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: max TA76431F/FR Test Parameter (1) VKA = VREF Mode RSD IK (2) VKA > VREF Mode RSD R1 Input VKA Input VKA IK IREF VREF VREF ⎛ R⎞ VKA = VREF ⎜ 1 + 1 ⎟ + IREF ⋅ R1 ⎜ R2 ⎟ ⎝ ⎠ (3) OFF-State Mode RSD IKoff Input VKA Typical Application Circuits (1) 2.5 V Reference VIN (2) Shunt Regulator RSD R1 VIN VOUT ∼ 2.5 V − R2 VOUT GND ⎛ R⎞ VOUT = VREF ⎜ 1 + 1 ⎟ + IREF ⋅ R1 ⎜ R2 ⎟ ⎝ ⎠ R2 4 2006-11-06 TA76431F/FR IK – VKA 150 Input VKA IK 2600 VREF – Ta VKA = VREF VKA Input VREF VREF max = 2550 mV 2520 IK (mV) IK = 10 mA 2560 (mA) 100 50 VKA = VREF Ta = 25°C Reference voltage VREF Cathode current IK 0 2480 VREF typ. = 2495 mV −50 2440 VREF min = 2440 mV 2400 −80 −100 −2.0 −1.0 0 1.0 2.0 3.0 4.0 −40 0 40 80 120 160 Cathode voltage VKA (V) Ambient temperature Ta (°C) IK – VKA Change in reference voltage ΔVREF (mV) 800 Input VKA IK 0 ΔVREF – VKA (μA) 600 −10 IK 400 VKA = VREF Ta = 25°C Cathode current −20 Input VKA IK 200 IK min −30 VREF 0 R1 R2 IK = 10 mA Ta = 25°C −200 −2.0 −1.0 0 1.0 2.0 3.0 4.0 −40 0 10 20 30 40 50 Cathode voltage VKA (V) Cathode voltage VKA (V) IKoff – Ta 100 4 Input 50 30 VKA = 36 V VREF = 0 V 10 5 3 VKA Input IREF – Ta VKA 10kΩ IK IKoff (nA) IREF (μA) IKoff 3 IREF IK = 10 mA 2 Off state cathode current Reference current 1 1 −40 0 40 80 120 160 0 −40 0 40 80 120 Ambient temperature Ta (°C) Ambient temperature Ta (°C) 5 2006-11-06 TA76431F/FR ZKA – f 50 30 220 Ω IK 10 5 3 GND ei eo RS 60 eo = ei Z ・ KA RS + ZKA ei RS Z ・ KA AV – f 1 0 kΩ IK VOUT 220 Ω GND 10 M 160 ZKA (Ω) AV (dB) RS ＞ ZKA eo = 50 40 30 20 10 0 −10 1k 10 μF VIN Dynamic impedance Open loop voltage gain e R ∴ ZKA = o ・ S ei 1 0.5 0.3 Ta = 25°C VKA = VREF 1 mA ≦ −IK ≦ 100 mA IK = 10 mA Ta = 25°C 0.1 1k 10 k 100 k 1M Frequency f (Hz) 10 k 100 k Frequency f (Hz) Pulse response 5 0 Input PD max – Ta max (W) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 (1) (1) Mounted on ceramic substate 2 (250 mm × 0.8 mm t) (2) Ta = 25°C 125°C/W 3 Output Input monitor Pulse 1 Generator f = 100 kHz GND 1 2 3 4 5 6 50 Ω 220 Ω Output 2 Allowable power dissipation PD Voltage swing (Ｖ) (2) 250°C/W 0 0 20 40 60 80 100 1 0 kΩ 1M 120 140 Time t (μs) Ambient temperature Ta (°C) Safe operating area 100 A. Unstable Ta = 25°C A. VKA = VREF B. VKA = 5 V Stable 60 B. Unstable Stable @IK = 10 mA C. VKA = 10 V @IK = 10 mA D. VKA = 15 V @IK = 10 mA Test circuit for curve A 150 Ω IK CL Cathode current IK (mA) 80 40 Test circuit for curve B, C, D 150 Ω D. Unstable C. Unstable IK CL 20 0 0.001 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 • The information contained herein is subject to change without notice. 20070701-EN • 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