L4949 MOTOROLA | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 8
Technical content
/C0076/C0052/C0057/C0052/C0057 SILICON MONOLITHIC INTEGRATED CIRCUIT MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR
ORDERING INFORMATION
TJ = –40° to +125°C DIP–8 SO–8 D SUFFIX PLASTIC PACKAGE CASE 751 (Top View) PIN CONNECTIONS Order this document from L4949/D N SUFFIX PLASTIC PACKAGE CASE 626 VZ C T Gnd Si VCC Reset So Vout /C0065/C0100/C0118/C0097/C0110/C0099/C0101/C0100 /C0073/C0110/C0102/C0111/C0114/C0109/C0097/C0116/C0105/C0111/C0110 /C0077/C0117/C0108/C0116/C0105/C0102/C0117/C0110/C0099/C0116/C0105/C0111/C0110 /C0086/C0101/C0114/C0121 /C0076/C0111/C0119 /C0068/C0114/C0111/C0112/C0111/C0117/C0116 /C0086/C0111/C0108/C0116/C0097/C0103/C0101 /C0082/C0101/C0103/C0117/C0108/C0097/C0116/C0111/C0114 The L4949 is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as power–on reset and input voltage sense. It is designed for supplying the micro–computer controlled systems especially in automotive applications.
- Operating DC Supply Voltage Range 5.0 V to 28 V
- Transient Supply Voltage Up to 40 V
- Extremely Low Quiescent Current in Standby Mode
- High Precision Standby Output Voltage 5.0 V ±1%
- Output Current Capability Up to 100 mA
- Very Low Dropout Voltage Less Than 0.4 V
- Reset Circuit Sensing The Output Voltage
- Programmable Reset Pulse Delay With External Capacitor
- Voltage Sense Comparator
- Thermal Shutdown and Short Circuit Protections Regulator
1.23 Vref
2.0 V 2.0 µA Reset 1.23 V Sense Gnd Sense Output (So) Reset Sense Input (Si) Supply Voltage (VCC ) VZ Output Voltage (Vout) C T38 4 Vs Preregulator 6.0 V Representative Block Diagram Motorola, Inc. 1997 Rev 0This document contains information on a new product. Specifications and information herein are subject to change without notice.
2 MOTOROLA ANALOG IC DEVICE DATA
ABSOLUTE MAXIMUM RATINGS (Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.) Rating Symbol Value Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ DC Operating Supply Voltage ÁÁÁÁ ÁÁÁÁ VCC ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Transient Supply Voltage (t < 1.0 s) ÁÁÁÁ ÁÁÁÁ VCC TR ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Current ÁÁÁÁ ÁÁÁÁ Iout ÁÁÁÁÁ ÁÁÁÁÁ Internally Limited ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Voltage ÁÁÁÁ ÁÁÁÁ Vout ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Sense Input Current ÁÁÁÁ ÁÁÁÁ ISI ÁÁÁÁÁ ÁÁÁÁÁ ±1.0 ÁÁÁ ÁÁÁ mA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Sense Input Voltage ÁÁÁÁ ÁÁÁÁ VSI ÁÁÁÁÁ ÁÁÁÁÁ VCC ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Voltages ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Reset Output ÁÁÁÁ ÁÁÁÁ VReset ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Sense Output ÁÁÁÁ ÁÁÁÁ VSO ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Currents ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ mA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Reset Output ÁÁÁÁ IReset ÁÁÁÁÁ 5.0 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Sense Output ÁÁÁÁ ÁÁÁÁ ISO ÁÁÁÁÁ ÁÁÁÁÁ 5.0 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Preregulator Output Voltage ÁÁÁÁ ÁÁÁÁ VZ ÁÁÁÁÁ ÁÁÁÁÁ 7.0 ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Preregulator Output Current ÁÁÁÁ ÁÁÁÁ IZ ÁÁÁÁÁ ÁÁÁÁÁ 5.0 ÁÁÁ ÁÁÁ mA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ESD Protection at any pin ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Human Body Model ÁÁÁÁ ÁÁÁÁ – ÁÁÁÁÁ ÁÁÁÁÁ 2000 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Machine Model ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 400 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Thermal Resistance, Junction–to–Air ÁÁÁÁ ÁÁÁÁ R θJA ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ °C/W ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ P Suffix, DIP–8 Plastic Package, Case 626 ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 100 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ D Suffix, SO–8 Plastic Package, Case 751 ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 200 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximim Junction Temperature ÁÁÁÁ ÁÁÁÁ TJ ÁÁÁÁÁ ÁÁÁÁÁ 150 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range ÁÁÁÁ ÁÁÁÁ Tstg ÁÁÁÁÁ ÁÁÁÁÁ –65 to +150 ÁÁÁ ÁÁÁ NOTE: ESD data available upon request. ELECTRICAL CHARACTERISTICS (VCC = 14 V, –40°C < TJ < 125°C, unless otherwise specified.) Characteristic Symbol Min Typ Max Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Voltage (TJ = 25°C, Iout = 1.0 mA) ÁÁÁÁÁ ÁÁÁÁÁ Vout ÁÁÁÁ ÁÁÁÁ 4.95 ÁÁÁÁ ÁÁÁÁ 5.0 ÁÁÁÁ ÁÁÁÁ 5.05 ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Voltage (6.0 V < VCC < 28 V, 1.0 mA < Iout < 50 mA) ÁÁÁÁÁ ÁÁÁÁÁ Vout ÁÁÁÁ ÁÁÁÁ 4.9 ÁÁÁÁ ÁÁÁÁ 5.0 ÁÁÁÁ ÁÁÁÁ 5.1 ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output Voltage (VCC = 35 V, t < 1.0 s, 1.0 mA < Iout < 50 mA) ÁÁÁÁÁ ÁÁÁÁÁ Vout ÁÁÁÁ ÁÁÁÁ 4.9 ÁÁÁÁ ÁÁÁÁ 5.0 ÁÁÁÁ ÁÁÁÁ 5.1 ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Dropout Voltage ÁÁÁÁÁ ÁÁÁÁÁ Vdrop ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Iout = 10 mA ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 0.1 ÁÁÁÁ ÁÁÁÁ 0.25 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Iout = 50 mA ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 0.2 ÁÁÁÁ ÁÁÁÁ 0.40 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Iout = 100 mA ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 0.3 ÁÁÁÁ 0.50 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Input to Output Voltage Difference in Undervoltage Condition ÁÁÁÁÁ ÁÁÁÁÁ VIO ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 0.2 ÁÁÁÁ ÁÁÁÁ 0.4 ÁÁÁ ÁÁÁ V (VCC = 4.0 V, Iout = 35 mA) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Line Regulation (6.0 V < VCC < 28 V, Iout = 1.0 mA) ÁÁÁÁÁ ÁÁÁÁÁ Reg line ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 1.0 ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ mV ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Load Regulation (1.0 mA < Iout < 100 mA) ÁÁÁÁÁ ÁÁÁÁÁ Reg load ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 8.0 ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ mV ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Current Limit ÁÁÁÁÁ ÁÁÁÁÁ ILim ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁ mA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Vout = 4.5 V ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 105 ÁÁÁÁ ÁÁÁÁ 200 ÁÁÁÁ ÁÁÁÁ 400 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Vout = 0 V ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 100 ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Quiescent Current (Iout = 0.3 mA, TJ < 100°C) ÁÁÁÁÁ Á ÁÁÁ Á IQSE ÁÁÁÁ Á ÁÁ Á ÁÁÁÁ Á ÁÁ Á 150 ÁÁÁÁ Á ÁÁ Á 260 ÁÁÁ ÁÁ Á µA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Quiescent Current (Iout = 100 mA) ÁÁÁÁÁ Á ÁÁÁ Á IQ ÁÁÁÁ Á ÁÁ Á ÁÁÁÁ Á ÁÁ Á ÁÁÁÁ Á ÁÁ Á 5.0 ÁÁÁ ÁÁ Á mA
4 MOTOROLA ANALOG IC DEVICE DATA
Figure 3. Dropout Voltage versus Figure 4. Dropout Voltage versus Figure 5. Quiescent Current versus Figure 6. Quiescent Current versus Figure 7. Reset Output versus Figure 8. Reset Thresholds versus
5MOTOROLA ANALOG IC DEVICE DATA 6.0 5.0 4.0 2.0 1.0 1.15 VSI, SENSE INPUT VOLTAGE (V) 1.0 TJ = 25°C VSO , SENSE OUTPUT VOLTAGE (V) 3.0 Resistor 10 k from Sense Output to 5.0 V 1.11.05 1.4 1.38 1.36 1.34 1.3 –40 –20 TJ, JUNCTION TEMPERATURE ( °C) 1.28 1.2 Upper Threshold VSI, SENSE INPUT VOLTAGE (V) 0 20 40 60 80 100 120 1.32 Lower Threshold1.26 1.24 1.22 Figure 9. Sense Output versus Figure 10. Sense Thresholds versus
APPLICATION INFORMATION
High supply voltage transients can cause a reset output signal perturbation. For supply voltages greater than 8.0 V the circuit shows a high immunity of the reset output against supply transients of more than 100 V/µs. For supply voltages less than 8.0 V supply transients of more than 0.4 V/µs can cause a reset signal perturbation. To improve the transient behavior for supply voltages less than 8.0 V a capacitor at Pin 3 can be used. A capacitor at Pin 3 (C3 ≤ 1.0 µF) reduces also the output noise. So VZ (optional) Vout Vout Vbat C s C OC3 R SO 10 kΩ Regulator 2.0 V 2.0 µA Reset 1.23 V Sense Gnd Reset Si VCC C T38 4 VCC Preregulator 6.0 V 10 kΩ Figure 11. Application Schematic
- Recommended for application: Cs = CO = 10 µF
6 MOTOROLA ANALOG IC DEVICE DATA
features and functions independently when required. overvoltage pulses is generated. function of the input supply voltage is shown in Figure 13. function of the supply input voltage is shown in Figure 14. Figure 12. Foldback Characteristic of Vout Figure 13. Output Voltage versus Supply Voltage Figure 14. Quiescent Current versus Supply Voltage output because the output capability is very small (≤ 100 µA).
voltage and standby output drivider. circuit increases the noise immunity.
1.23 V Vref
Figure 15. Reset Circuit typical reset output waveforms are shown in Figure 16. Figure 16. Typical Reset Output Waveforms to the microprocessor like low voltage warnings.
8 MOTOROLA ANALOG IC DEVICE DATA
CASE 626–05 ISSUE K D SUFFIX PLASTIC PACKAGE CASE 751–05 ISSUE S OUTLINE DIMENSIONS NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. STYLE 1: PIN 1. AC IN 2. DC + IN 3. DC – IN 4. AC IN 5. GROUND 6. OUTPUT 7. AUXILIARY 8. VCC F NOTE 2 –A– –B– –T– SEATING PLANE H J G D K N C L M MAM0.13 (0.005) B MT DIM MIN MAX MIN MAX INCHESMILLIMETERS A 9.40 10.16 0.370 0.400 B 6.10 6.60 0.240 0.260 C 3.94 4.45 0.155 0.175 D 0.38 0.51 0.015 0.020 F 1.02 1.78 0.040 0.070 G 2.54 BSC 0.100 BSC H 0.76 1.27 0.030 0.050 J 0.20 0.30 0.008 0.012 K 2.92 3.43 0.115 0.135 L 7.62 BSC 0.300 BSC N 0.76 1.01 0.030 0.040 /C0095/C0095 SEATING PLANE A0.25 M CB SS
0.25 M B M
h /C0113 C X 45/C0095 L DIM MIN MAX MILLIMETERS A 1.35 1.75 A1 0.10 0.25 B 0.35 0.49 C 0.18 0.25 D 4.80 5.00 E
1.27 BSCe
3.80 4.00 H 5.80 6.20 h 0 7 L 0.40 1.25 /C0113 0.25 0.50 /C0095/C0095 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. D E H A B e BA1 C A 0.10 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution;JAPAN : Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1, P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447 Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488 – US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 INTERNET : http://motorola.com/sps L4949/D◊