MC1121 ONSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Converts a 2.4V to 5.5V Input V oltage to a Corresponding Negative Output V oltage (Inverter Mode)
  • Uses Only 2 Capacitors; No Inductors Required!
  • High Output Current: 100mA
  • Selectable Oscillator Frequency: 10kHz to 200kHz
  • Power–Saving Shutdown Input
  • Optional High–Frequency Operation Allows Use of Small Capacitors
  • Low Operating Current (FC = GND): 50µA
  • Tested Operating Temperature Range: –40°C to +85°C Typical Applications
  • Laptop Computers
  • Medical Instruments
  • Disk Drives
  • µP–Based Controllers
  • Process Instrumentation FUNCTIONAL BLOCK DIAGRAM MC1121 + C2 OSC CONTROL RC OSCILLATOR LOGIC CIRCUITS SWITCH MATRIX CAP –CAP + Vout SHDN FC OSC VDD GND Micro8 DM SUFFIX CASE TBD PRELIMINARY INFORMATION http://onsemi.com PIN CONFIGURATION (Top View) MC1121 FC CAP+ GND CAP– VDD OSC SHDN VOUT Device Package Shipping

ORDERING INFORMATION

MC1121DMR2 Micro–8 2500 Tape/Reel

http://onsemi.com PIN DESCRIPTION Pin No. Symbol Description ÁÁÁÁÁ Á ÁÁÁ Á ÁÁÁÁÁ ÁÁÁÁÁÁ Á ÁÁÁÁ Á ÁÁÁÁÁÁ FC ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Frequency control for internal oscillator, FC = open, FOSC = 10kHz typ; FC = VDD , FOSC = 200kHz typ, FC has no effect when OSC pin is driven externally ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ CAP+ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Charge–pump capacitor, positive terminal ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ GND ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power–supply ground input ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ CAP– ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Charge–pump capacitor, negative terminal ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ VOUT ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Output, negative voltage ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ SHDN ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Shutdown ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ OSC ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Oscillator control input. An external capacitor can be added to slow the oscillator. Take care to minimize stray capacitance. An external oscillator also may be connected to overdrive OSC ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁ VDD ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power–supply positive voltage input ABSOLUTE MAXIMUM RATINGS* Parameter Value Unit VDD Supply Voltage 6.0 V Operating Temperature Range –40 to +85 °C OSC, FC, SHDN Input Voltage –0.3 to (VDD + 0.3) V Output Short Circuit Duration 10 Sec Storage Temperature Range –65 to +150 °C Package Power Dissipation (TA ≤ 70°C) Micro8 Derate by 4mW/°C for TA > 70°C 333 mW Lead Temperature (Soldering, 10 Seconds) +300 °C * Maximum Ratings are those values beyond which damage to the device may occur. ELECTRICAL CHARACTERISTICS (TA = –40°C to +85°C, VDD = 5V ±10% C OSC = OPEN, C1, C2 = 10µF, FC = VDD , SHDN = VIH, unless otherwise noted. Typical values are at TA = 25°C.) Symbol Characteristic Min Typ Max Unit IDD Active Supply Current R L = Open, FC = Open or GND R L = Open, FC = VDD 0.6 100 1.0 µA mA IDD(SHDN) Shutdown Supply Current (SHDN = 0V) — 0.2 1.0 µA VDD Supply Voltage 2.4 — 5.5 V VIH SHDN Logic High Input Voltage VDD x 0.8 — — V VIL SHDN Logic Low Input Voltage — — 0.4 V IIN Input Leakage Current SHDN , OSC FC Pin –1.0 –4.0 1.0 4.0 µA R OUT Output Source Resistance (IOUT = 60 mA) — 12 20 /C0087 IOUT Output Current (VOUT more negative than –3.75V) 60 100 — mA FOSC Oscillator Frequency OSC Open, FC = Open or GND SHDN = VIH, FC = VDD 5.0 100 200 kHz PEFF Power Efficiency (FC = GND) R L = 2k/C0087 between VDD and VOUT R L = 1 k/C0087 between VOUT and GND IL = 60 mA to GND VEFF Voltage Conversion Efficiency (RL = OPEN) 99 99.9 — %

in the operating circuit (see Figure 1). Figure 1. Charge Pump Inverter NOTES: *SHDN should be tied to VDD if not used. decreases to - 3.8V (typ) with a 100mA load. raised to 390µF, the ripple drops to 45mV . still multiply the frequency by 20 times in this mode. V DD and GND may overdrive OSC in the inverter mode. is overdriven, FC has no effect. and 3) C1 and C2 capacitance. and output resistance diminish proportionately. supply voltage, the MC1121 may be cascaded (see Figure 2).

http://onsemi.com TAPE AND REEL INFORMATION USER DIRECTION OF FEED Component Taping Orientation for Micro–8 Devices Standard Reel Component Orientation for R2 Suffix Device (Mark Right Side Up) Micro–8 Package Tape Width (W) Pitch (P) Part Per Full Reel Diameter 12 mm 4 mm 2500 13 inches Tape & Reel Specifications Table PIN 1 MARKING MC1121DMR2 1121

http://onsemi.com PACKAGE DIMENSIONS Micro8 PLASTIC PACKAGE CASE TBD ISSUE TBD Dimensions: inches (mm) .122 (3.10) 6 MAX.° PIN 1 .016 (0.40) .026 (0.65) TYP. .114 (2.90) .197 (5.00) .187 (4.80) .010 (0.25) .006 (0.15) .043 (1.10) .002 (0.05) MAX. .122 (3.10) .114 (2.90) .028 (0.70) .016 (0.40) .008 (0.20) .005 (0.13)

http://onsemi.com Notes

http://onsemi.com ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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 special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC 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. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC 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 SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION CENTRAL/SOUTH AMERICA: Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST) Email: ONlit–spanish@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support Phone : 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong & Singapore: 001–800–4422–3781 Email: ONlit–asia@hibbertco.com JAPAN : ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549 Phone : 81–3–5740–2745 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. MC1121/D NORTH AMERICA Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone : 303–675–2175 or 800–344–3860 Toll Free USA/Canada Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada Email: ONlit@hibbertco.com Fax Response Line: 303–675–2167 or 800–344–3810 Toll Free USA/Canada N. American Technical Support: 800–282–9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor – European Support German Phone : (+1) 303–308–7140 (M–F 1:00pm to 5:00pm Munich Time) Email: ONlit–german@hibbertco.com French Phone : (+1) 303–308–7141 (M–F 1:00pm to 5:00pm Toulouse Time) Email: ONlit–french@hibbertco.com English Phone: (+1) 303–308–7142 (M–F 12:00pm to 5:00pm UK Time) Email: ONlit@hibbertco.com EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781 *Available from Germany, France, Italy, England, Ireland