PRECISION SHUNT VOLTAGE REFERENCE PRELIMINARY - April 13, 1998 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC4041 is a two terminal precision voltage reference with thermal stability guaranteed over temperature. The very low fixed output voltage of 1.225 V is ideal for use with today’s low voltage integrated circuits. The SC4041 has a typical dynamic output impedance of 0.25Ω. Active output circuitry provides a very sharp turn on characteristic - the minimum operating current is 60µA, with a maximum of 20mA. Available with five voltage tolerances (0.1%, 0.2%, 0.5%, 1.0% and 2.0%) and three package outlines (SOT-23, SO-8 and TO-92), this part allows the designer the opportunity to select the optimum combination of cost and performance for their application. PIN CONFIGURATIONS SOT-23-3 Lead (Top View) SO-8 Lead (Top View) SC4041 FEATURES • Low voltage operation (1.225V) • Trimmed bandgap design (0.1%) • Wide operating current range 60µA to 20mA • Low dynamic impedance (0.25Ω) • Available in SOT-23, TO-92 and SO-8 APPLICATIONS • Cellular telephones • Portable computers • Instrumentation • Automotive BLOCK DIAGRAM Cathode Anode SYMBOL DIAGRAM Cathode TO-92 (Top View) Anode 1 © 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE SC4041 PRELIMINARY - April 13, 1998 ABSOLUTE MAXIMUM RATINGS Parameter Symbol Reverse Current Maximum Units 60 µA to 20 mA Operating Temperature Range TA -40 to +85 °C Operating Junction Temperature Range TJ -40 to +150 °C Storage Temperature Range TSTG -65 to +150 °C Lead Temperature (Soldering) 10 seconds TLEAD 260 °C ESD Rating ESD 2 kV ORDERING INFORMATION PACKAGE SOT-23-3L SO-8 (1) TO-92 (1)(2) (1) TOLERANCE 0.1% 0.2% 0.5% 1.0% 2.0% T/R Quantity SC4041ASK SC4041BSK SC4041CSK SC4041DSK SC4041ESK 3K SC4041AS SC4041BS SC4041CS SC4041DS SC4041ES 2.5K SC4041AZ SC4041BZ SC4041CZ SC4041DZ SC4041EZ TR=3K, TA=2K Notes: (1) Add suffix ‘TR’ for Tape & Reel. (2) Add suffix ‘TA’ for Tape Ammo. 2 © 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE SC4041 PRELIMINARY - April 13, 1998 ELECTRICAL CHARACTERISTICS TA = 25°C unless otherwise specified. Parameter Reverse Breakdown Voltage SC4041A (0.1%) Symbol VZ Condition IZ = 100µA MIN V 60 µA ±100 ±100 ppm/°C TA = 25°C 1.5 1.5 mV TA = -40 to +85°C 2.0 2.0 mV TA = 25°C 6.0 6.0 mV TA = -40 to +85°C 8.0 8.0 mV 1.5 Ω IZ = 10mA IZ = 1mA IZ = 100µA TA = -40 to +85°C Ratio of Change in VZ to Change in IZ ∆ VZ ∆ IZ IZ(min) < IZ < 1mA Reverse Dynamic Impedance ZR IZ = 1mA, f = 120 Hz, IAC = 0.1 IZ Wideband Noise (RMS) eN IZ = 100µA 10Hz < f < 10kHz ∆V Z t = 1000 hours T = 25°C ± 0.1°C IZ = 100µA 0.25 TA = 25°C unless otherwise specified. VZ Condition IZ = 100µA UNITS 1.2158 1.2250 1.2342 1.2146 1.2250 1.2354 ∆ VZ ∆T Reverse Breakdown Voltage MAX TA = -40 to +85°C 30 Symbol TYP V Reverse Breakdown Voltage Temperature Coefficient Parameter MIN 1.2238 1.2250 1.2262 1.2226 1.2250 1.2274 IZ(min) 1mA < IZ < 12mA MAX TA = 25°C Minimum Operating Current Long Term Stability of Reverse Breakdown Voltage TYP SC4041B (0.2%) 60 30 1.5 0.25 20 20 µV 120 120 ppm SC4041C (0.5%) SC4041D (1.0%) MIN TYP MAX MIN TYP MAX UNITS TA = 25°C 1.219 1.225 1.231 1.213 1.225 1.237 V TA = -40 to +85°C 1.211 1.225 1.239 1.201 1.225 1.249 V 30 60 30 60 µA ±100 ±150 ppm/°C Minimum Operating Current IZ(min) Reverse Breakdown Voltage Temperature Coefficient ∆ VZ ∆T IZ = 10mA IZ = 1mA IZ = 100µA TA = -40 to +85°C Ratio of Change in VZ to Change in IZ ∆ VZ ∆ IZ IZ(min) < IZ < 1mA TA = 25°C 1.5 2.0 mV TA = -40 to +85°C 2.0 2.5 mV TA = 25°C 6.0 8.0 mV TA = -40 to +85°C 8.0 10.0 mV 2.0 Ω 1mA < IZ < 12mA Reverse Dynamic Impedance ZR IZ = 1mA, f = 120 Hz, IAC = 0.1 IZ Wideband Noise (RMS) eN IZ = 100µA 10Hz < f < 10kHz ∆VZ t = 1000 hours T = 25°C ± 0.1°C IZ = 100µA Long Term Stability of Reverse Breakdown Voltage 0.25 1.5 0.25 20 20 µV 120 120 ppm 3 © 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE SC4041 PRELIMINARY - April 13, 1998 ELECTRICAL CHARACTERISTICS TA = 25°C unless otherwise specified. Parameter Reverse Breakdown Voltage SC4041E (2.0%) Symbol VZ Condition IZ = 100µA MIN TYP MAX UNITS TA = 25°C 1.200 1.225 1.250 V TA = -40 to +85°C 1.189 1.225 1.261 V 30 60 µA ±150 ppm/°C Minimum Operating Current IZ(min) Reverse Breakdown Voltage Temperature Coefficient ∆ VZ ∆T IZ = 10mA IZ = 1mA IZ = 100µA TA = -40 to +85°C ∆ VZ ∆IZ IZ(min) < IZ < 1mA TA = 25°C 2.0 mV TA = -40 to +85°C 2.5 mV TA = 25°C 8.0 mV TA = -40 to +85°C 10.0 mV 2.0 Ω Ratio of Change in VZ to Change in IZ 1mA < IZ < 12mA Reverse Dynamic Impedance ZR IZ = 1mA, f = 120 Hz, IAC = 0.1 IZ Wideband Noise (RMS) eN IZ = 100µA 10Hz < f < 10kHz ∆VZ t = 1000 hours T = 25°C ± 0.1°C IZ = 100µA Long Term Stability of Reverse Breakdown Voltage 0.25 20 µV 120 ppm 4 © 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE SC4041 PRELIMINARY - April 13, 1998 OUTLINE DRAWING SOT-23-3L LAND PATTERN SOT-23-3L Note 1 : Grid placement courtyard is 8 x 8 elements (4mm x 4mm) in accordance with the international grid detailed in IEC Publication 97. 5 © 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE SC4041 PRELIMINARY - April 13, 1998 OUTLINE DRAWING SO-8 JEDEC REF: MS-012AA LAND PATTERN SO-8 OUTLINE DRAWING TO-92 6 © 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320