www.fairchildsemi.com FAN4050 Precision Micropower Shunt Voltage Reference Features Description • • • • • • The FAN4050 series of precision shunt references are ideal for space- and cost-sensitive applications. They are available in two output voltages (2.500V and 3.300V) and with a variety of output voltage tolerances (0.1%, 0.2%, and 0.5%). They also have excellent temperature coefficients, 50ppm/°C. Fixed 2.500V and 3.300V Tolerances to +0.1% (25°C) Low output noise Low temperature coefficient, 50ppm/°C max Small package: SOT-23 Extended operating current range The FAN4050 series is available in the SOT-23 package. Applications • • • • • Portable equipment Disk drives Instrumentation Audio equipment Data acquisition systems Connection Diagram SOT-23 + 1 3* – *This pin must be left floating or connected to pin 2. 2 Top View REV. 1.0.1 9/29/00 FAN4050 PRODUCT SPECIFICATION Absolute Maximum Ratings1 Ratings are over full operating free-air temperature range unless otherwise noted. Parameter Continuous cathode current, IK Min. Max. Unit -30 +30 mA 280 mW 150 °C 300 °C 2 Power dissipation Storage Temperature Range -65 Lead Temperature (Soldering, 10 sec.) Notes: 1. Functional operation under these conditions is not implied. Permanent damage may occur if the device is subjected to conditions outside these ratings. 2. It is recommended to connect pin 3 to pin 2 in the SSOT23 package to ensure optimal thermal performance. Recommended Operating Conditions Parameter Min. Max. Unit Continuous cathode current, IK 0.07 15 mA Operating temperature range in free air, TA -40 85 °C Equivalent Schematic + + _ _ 2 REV. 1.0.1 9/29/00 PRODUCT SPECIFICATION FAN4050 Guaranteed Electrical Characteristics, FAN4050-2.5 (TA = 25°C unless otherwise specified, in free air) The • denotes specifications which apply over the full operating temperature range. Symbol VR TCVR Parameter Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance Minimum Operating Current IRMIN ∆VR/∆T Reverse Breakdown Voltage Temperature Coefficient ∆VR (∆IK) Reverse Breakdown Voltage Change with Operating Current ZKA Reverse Dynamic Impedance eN Wideband Noise ∆VR Conditions IK = 100µA IK = 100µA IK = 100µA IRMIN ≤ IK ≤1mA 1mA ≤ IK ≤ 15mA 1mA ≤ IK ≤ 25mA IK=1mA, f=120Hz, IAC=0.1IK • • • • • IK=100µA, 10Hz ≤ f ≤ 10kHz Reverse Breakdown Voltage t=1000hrs, T=25°C, IK=100µA Long-term Stability A 2.500 ±2.5 ±11 65 ±50 Limits B 2.500 ±5.0 ±14 65 ±50 C 2.500 ±13 ±21 65 ±50 Units V* mV mV µA ppm/°C 1.2 8.0 10 0.3 1.2 8.0 10 0.3 1.2 8.0 10 0.3 mV mV mV* Ω* 35 35 35 µVRMS* 120 120 120 ppm* *Typical. Guaranteed Electrical Characteristics, FAN4050-3.3 (TA = 25°C unless otherwise specified, in free air) The • denotes specifications which apply over the full operating temperature range. Symbol VR TCVR Parameter Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance Minimum Operating Current IRMIN ∆VR/∆T Reverse Breakdown Voltage Temperature Coefficient ∆VR (∆IK) Reverse Breakdown Voltage Change with Operating Current ZKA eN ∆VR Reverse Dynamic Impedance Wideband Noise Reverse Breakdown Voltage Long-term Stability Conditions IK = 100µA IK = 100µA IK = 100µA • • • IRMIN ≤ IK ≤1mA • 1mA ≤ IK ≤ 15mA • 1mA≤ IK ≤ 25mA IK=1mA, f=120Hz, IAC=0.1IK IK=100µA, 10Hz ≤ f ≤ 10kHz t=1000hrs, T=25°C, IK=100µA A 3.300 ±3.3 ±25 70 ±50 1.2 10 12 0.5 70 120 Limits Units B C 3.300 3.300 V* ±6.6 ±17 mV ±28 ±38 mV 70 70 µA ±50 ±50 ppm/°C 1.2 10 12 0.5 70 120 1.2 10 12 0.5 70 120 mV mV mV Ω* µVRMS* ppm* *Typical. REV. 1.0.1 9/29/00 3 FAN4050 PRODUCT SPECIFICATION Mechanical Dimensions SOT-23 Package Symbol Inches Min. A A1 B c D E e e1 H L S Millimeters Max. Min. Max. .035 .044 .0004 .004 .012 .020 .003 .008 .110 .120 .047 .055 .037 BSC .075 BSC .083 .104 .89 1.12 .01 .10 .30 .50 .08 .20 2.80 3.04 1.20 1.40 .95 BSC 1.90 BSC 2.10 2.64 .021 REF .016 Nom .54 REF .395 Nom Notes: Notes 1. Dimensions are inclusive of plating. 2. Dimensions are exclusive of mold flash & metal burr. 3. Comply to JEDEC TO-236. 4. This drawing is for matrix leadframe only. D e1 S c e L E H B A1 4 A REV. 1.0.1 9/29/00 FAN4050 PRODUCT SPECIFICATION Ordering Information Example: FAN4050AIS3-2.5 FAN4050 A I Grade 0.1% = A 0.2% = B 0.5% = C S3 Package SOT23 = S3 – 2.5 Voltage 2.5V = 2.5 3.3V = 3.3 SSOT-23 Package Marking Information Only 3 fields of marking are possible on an SSOT-23. This table gives the meaning of these fields. Example: FCA F C A Voltage 2.5V = C 3.3V = H Grade 0.1% = A 0.2% = B 0.5% = C DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 9/29/00 0.0m 005 Stock#DS30004040 © 2000 Fairchild Semiconductor Corporation