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| DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT PC1943,1944 ADJUSTABLE PRECISION SHUNT REGULATORS DESCRIPTION The PC1943,1944 are adjustable precision shunt regulators with guaranteed thermal stability. The output voltage can be set to any value between reference voltage (1.26 V) and 24 V by two external resistors. These ICs can apply to error amplifier of switching regulators. FEATURES * Low voltage operation and High accuracy. * Adjustable output voltage by two external resistors. * Pin compatible to PC1093. VREF = 1.26 V 2.4 % VREF VOUT 24 V ORDERING INFORMATION Part Number Package Power mini mold (SOT-89) Power mini mold (SOT-89) 3-pin plastic SIP (TO-92) 8-pin plastic SOP (5.72 mm (225)) BLOCK DIAGRAM K PC1943T PC1944T PC1944J PC1944GR REF A PIN CONFIGURATION (Marking Side) Power mini mold (SOT-89) PC1943T PC1944T A A 3-pin plastic SIP (TO-92) PC1944J 3-pin plastic SOP (5.72 mm (225)) PC1944GR K1 NC 2 8 REF 7 NC 6A 5 NC 1 1 REF 2 A 3 K 1 K 2 A 3 REF 2 3 NC 3 NC 4 REF A K A: Anode K: Cathode REF: Reference NC: No Connection The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. G10239EJ3V0DS00 (3rd edition) (Previous No. IC-3454) Date Published March 2000 NS CP (K) Printed in Japan The mark shows major revised points. (c) 1994, 2000 PC1943,1944 ABSOLUTE MAXIMUM RATINGS (TA = +25 C, unless otherwise specified.) Parameter Cathode Voltage Cathode Current Cathode to Anode Reverse Current Reference Voltage Reference Input Current Reference to Anode Reverse Current Total Power Dissipation Symbol VKA IK - IK VREF IREF - IREF PT Ratings 25 50 -30 7 50 - 10 320 (1600 320 (1600 560 385 TA TJ Tstg - 30 to + 85 - 30 to + 125 - 65 to + 125 Note Note Unit V mA mA V A mA ) ) mW mW mW mW C C C PC1943T PC1944T PC1944J PC1944GR Operating Ambient Temperature Operating Junction Temperature Storage Temperature Note with 16 cm2 x 0.7 mm ceramic substrate. Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded. TYPICAL CONNECTION R0 VIN R1 REF VOUT R2 GND A K (1 + R1 ) * VREF R2 VOUT 2 Data Sheet G10239EJ3V0DS00 PC1943,1944 RECOMMENDED OPERATING CONDITIONS Parameter Cathode Voltage Cathode Current Total Power Dissipation Symbol VKA IK MIN. VREF 1 10 TYP. MAX. 24 30 45 (240 Note Unit V mA ) mW mW mW mW C C PC1943T PC1944T PC1944J PC1944GR PT 45 (240Note) 83 57 TA TJ -30 -30 +85 +100 Operating Ambient Temperature Operating Junction Temperature Note with 16 cm2 x 0.7 mm ceramic substrate. Caution The recommended operating range may be exceeded without causing any problems provided that the absolute maximum ratings are not exceeded. However, if the device is operated in a way that exceeds the recommended operating conditions, the margin between the actual conditions of use and the absolute maximum ratings is small, and therefore thorough evaluation is necessary. The recommended operating conditions do not imply that the device can be used with all values at their maximum values. ELECTRICAL CHARACTERISTICS (IK = 10 mA, TA = +25 C, unless otherwise specified.) Parameter Reference Voltage Reference Voltage Deviation Over Temperature Reference Voltage Deviation Over Cathode Voltage Reference Input Current Reference Input Current Deviation Over Temperature Minimum Cathode Current Off-state Cathode Current Dynamic Impedance IKmin IKoff | ZKA | IREF Symbol VREF VKA = VREF VKA = VREF, 0 C TA 70 C | VREF | VKA 5V 5 V VKA 24V VKA = VREF, R1 = 10 k, R2 = VKA = VREF, 0 C TA 70 C, R1 = 10 k, R2 = VKA = VREF, VREF = 2 % VKA = 24 V, VREF = 0 V VKA = VREF, f 1 kHz, 1 mA IK 30 mA 0.16 0.01 0.12 1.0 1.0 0.5 mA 2.0 0.3 Conditions MIN. 1.23 TYP. 1.26 5 MAX. 1.29 30 Unit V mV VREF VREF/ VKA 2.7 2.0 4.0 1.2 mV/V mV/V A A IREF A Data Sheet G10239EJ3V0DS00 3 PC1943,1944 TYPICAL CHARACTERISTIC (TA = +25 C, unless otherwise specified. Nominal) PT vs TA ( I ) 600 PT - Total Power Dissipation - mW PC1944J PT vs TA ( II ) 2.0 PT - Total Power Dissipation - W PC1943T, 1944T with 16 cm2 x 0.7 mm ceramic substrate 500 400 PC1944GR 300 200 100 1.5 62 PC1943T, 1944T 26 31 0 25 50 75 100 125 150 TA - Operating Ambient Temperature - C VREF vs TA 20 2.0 VKA = VREF IK - Cathode Current - mA 18 0 0 C / C W C/ .5 /W C 1.0 W 5 /W 0.5 0 25 50 75 100 125 150 TA - Operating Ambient Temperature - C IK vs VKA ( I ) VREF - Reference Voltage Deviation - mV 10 0 1.0 -10 -20 IK = 10 mA VKA = VREF -40 -20 0 20 40 60 80 100 120 TA - Operating Ambient Temperature - C 0 0.2 0.4 0.6 0.8 1.0 1.2 VKA - Cathode Voltage - V 1.4 IK vs VKA (II) 50 VKA = VREF 40 0 IK vs VKA (III) IK - Cathode Current - mA IK - Cathode Current - mA -10 30 20 -20 10 0 0.5 1.0 VKA - Cathode Voltage - V 1.5 -30 -1.0 VKA = VREF -0.8 -0.6 -0.4 -0.2 VKA - Cathode Voltage - V 0 4 Data Sheet G10239EJ3V0DS00 PC1943,1944 IREF vs TA 4.0 0.2 IKoff vs TA IKoff - Off State Cathode Current - A VKA = 24 V VREF = 0 V IREF - Reference Input Current - A VKA = VREF, IK = 10 mA, R1 = 10 k, R2 = 3.0 2.0 0.1 1.0 0 -20 0 20 40 60 80 100 120 TA - Operating Ambient Temperature - C 0 -20 0 20 40 60 80 100 120 TA - Operating Ambient Temperature - C Av, vs f 60 +90 | ZKA | vs f 50 VKA = VREF 1mA IK 30 mA Av - Voltage Gain - dB 40 Av 0 | ZKA | - Dynamic Impedance - 10 20 220 -90 - Phase - 1.0 0 IK o in 10 k 10 k -180 -20 1k (IK = 10 mA) 10k 100k 1M f - Frequency - Hz -270 10M 0.1 1k 10k 100k 1M f - Frequency - Hz 10M Stability Area 2.0 IKA - Cathode Current - mA Test Circuit a: 150 IKA 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 a: VKA = VREF b: VKA = 3 V c: VKA = 5 V Stable c CKA a Stable b, c: b Unstable 0.01 0.1 1 CKA - Lode Capacitance - F 10 150 IKA R CKA 10 k 0.2 0 0.001 CKA: Monolithic Ceramic Capacitor Caution of Stability Area If the Aluminum electrolytic capacitor is used, it should be kept CKA 6.8 F. When using plural different types of capacitors, each capacitor is needed to be stable independently. Data Sheet G10239EJ3V0DS00 5 PC1943,1944 PACKAGE DRAWINGS POWER MINI MOLD (SOT-89) (Unit: mm) 4.50.1 1.60.2 1.50.1 0.8 MIN. 0.420.06 1.5 3.0 0.47 0.06 0.420.06 4.00.25 2.50.1 0.41+0.03 -0.05 6 Data Sheet G10239EJ3V0DS00 PC1943,1944 8-PIN PLASTIC SOP (5.72 mm (225)) 8 5 detail of lead end P 1 A 4 H F G I J S B C D E NOTE Each lead centerline is located within 0.12 mm of its true position (T.P.) at maximum material condition. ITEM A B C D E F G H I J K L M N P MILLIMETERS 5.2 +0.17 -0.20 0.78 MAX. 1.27 (T.P.) 0.42 +0.08 -0.07 0.10.1 1.590.21 1.49 6.50.3 4.40.15 1.10.2 0.17 +0.08 -0.07 0.60.2 0.12 0.10 3 +7 -3 S8GM-50-225B-6 L K N S M M Data Sheet G10239EJ3V0DS00 7 PC1943,1944 3-PIN PLASTIC SIP (TO-92) A N M 1 3 Y H F J G M V U NOTE Each lead centerline is located within 0.12 mm of its true position (T.P.) at maximum material condition. ITEM A F G H J M N U V Y MILLIMETERS 5.00.2 0.50+0.30 -0.10 0.12 1.27 1.33 MAX. 5.00.5 4.00.2 2.8 MAX. 0.500.10 15.00.7 P3J-127B-3 8 Data Sheet G10239EJ3V0DS00 PC1943,1944 RECOMMENDED SOLDERING CONDITIONS When soldering these products, there are highly recommended to observe the conditions as shown below. If other soldering processes are used, or if the soldering is performed under different conditions, please make sure to consult with our sales offices. For more details, refer to our document "Semiconductor Device Mounting Technology Manual" (C10535E). Type of Surface Mount Device PC1943T, 1944T : Power mini mold (SOT-89) Process Infrared ray reflow Conditions Peak temperature: 235 C or below (Package surface temperature), Reflow time: 30 seconds or less (at 210 C or higher), Maximum number of reflow processes: 2 times. VPS Peak temperature: 215 C or below (Package surface temperature), Reflow time: 40 seconds or less (at 200 C or higher), Maximum number of reflow processes: 2 times. Wave soldering Solder temperature: 260 C or below, Flow time: 10 seconds or less, Maximum number of flow processes: 1 time, Pre-heating temperature: 120 C or below (Package surface temperature). WS60-00-1 VP15-00-2 Symbol IR35-00-2 Caution Apply only one kind of soldering condition to a device, or the device will be damaged by heat stress. PC1944GR : 8-pin plastic SOP (5.72 mm (225)) Process Infrared ray reflow Conditions Peak temperature: 235 C or below (Package surface temperature), Reflow time: 30 seconds or less (at 210 C or higher), Maximum number of reflow processes: 1 time. VPS Peak temperature: 215 C or below (Package surface temperature), Reflow time: 40 seconds or less (at 200 C or higher), Maximum number of reflow processes: 1 time. Wave soldering Solder temperature: 260 C or below, Flow time: 10 seconds or less, Maximum number of flow processes: 1 time, Pre-heating temperature: 120 C or below (Package surface temperature). WS60-00-1 VP15-00-1 Symbol IR35-00-1 Caution Apply only one kind of soldering condition to a device, or the device will be damaged by heat stress. Type of Through-hole Device PC1944J : 3-pin plastic SIP (TO-92) Process Wave soldering (only to leads) Conditions Solder temperature: 260 C or below, Flow time: 10 seconds or less. Caution For through-hole device, the wave soldering process must be applied only to leads, and make sure that the package body does not get jet soldered. Data Sheet G10239EJ3V0DS00 9 PC1943,1944 REMARK OF THE PACKAGE MARK The package marks of the PC1943T and the PC1944T are the symbols as follows. Part Number Mark 9B 9C PC1943T PC1944T REFERENCE DOCUMENTS Semiconductor Device Mounting Technology Manual Semiconductor Selection Guide -Products and PackagesC10535E X13769X 10 Data Sheet G10239EJ3V0DS00 PC1943,1944 [MEMO] Data Sheet G10239EJ3V0DS00 11 PC1943,1944 [MEMO] * The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. * No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. * NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. * Descriptions of circuits, software, and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software, and information in the design of the customer's equipment shall be done under the full responsibility of the customer. NEC Corporation assumes no responsibility for any losses incurred by the customer or third parties arising from the use of these circuits, software, and information. * While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. * NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance. M7 98. 8 |
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