CS8121YTHA5

CS8121 CHERRY | Alldatasheet

Document overview

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Technical content

Features

VOUT(SENSE)

5 Lead

n 5V ± 4% Output Voltage n Low Dropout Voltage (1.2V @ 1A) n Low Quiescent Current (4mA @ IOUT = 1A) n µP Compatible Control Functions n Low Current Sleep Mode IQ = 250µA n Fault Protection Thermal Shutdown Short Circuit 60V Peak Transient Voltage ENABLE RESET Package Options

5 Lead TO-220

5V , 1A Linear Regulator with and ENABLERESET CS8121

Description

3 Gnd

7 Lead D2PAK

4 Gnd

7V OUT(SENSE) RESET ENABLE Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885-3600 Fax: (401)885-5786 Email: info@cherry-semi.com Web Site: www.cherry-semi.com A Company ¨ Rev. 5/4/99

Electrical Characteristics: IOUT = 5mA, -40ûC ² TJ ²150ûC , 7V ² VIN ² 26V, -40¡C ² TA ² 125¡C unless otherwise specified PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CS8121 Absolute Maximum Ratings Lead Temperature Soldering n Output Stage Output Voltage, VOUT 7V ² VIN ² 26V, 1mA ² IOUT ² 1A 4.8 5.0 5.2 V Line Regulation 7V ² V IN ² 26V, IOUT = 5mA 0 50 mV Load Regulation 5mA ² I OUT ²1 A 1 0 7 0 m V Supply Voltage Rejection V IN = 14VDC + 1VRMS 54 70 dB @120Hz, ILOAD = 50½ Dropout Voltage I OUT = 1A 1.2 1.8 V Quiescent Current = High, V IN = 12V 0.25 0.65 mA = Low, IOUT = 1A 4 20 mA n Protection Circuits Short Circuit Current 1.5 A Thermal Shutdown 150 190 ûC Overvoltage Shutdown 26 40 V n Saturation Voltage 1V < V OUT < VRT(OFF), 3.1k½ pull-up 0.1 0.4 V to VOUT Output Leakage = Low 0 25 µA Current V OUT > VRT(ON), V = V OUT Power ON/OFF 3.1k½ pull-up to V OUT 0.7 1.0 V Peak Output Voltage Threshold ON V OUT - 0.10 V OUT - 0.04 V (VOUT Increasing) Threshold OFF 4.75 V OUT - 0.14 V (VOUT Decreasing) Threshold Hysteresis 10 40 mV n Input High Voltage 7V < V IN < 26V 2.9 3.9 V Input Low Voltage 7V < V IN < 26V 1.1 2.1 V Input Hysteresis 7V < V IN < 26V 0.4 0.8 2.8 V Input Current Gnd < V IN(HI) < VOUT 0 ±10 µA ENABLE RESET RESET RESET RESET RESET ENABLERESET RESET RESET ENABLE ENABLE

Typical Performance Characteristics PACKAGE LEAD # LEAD SYMBOL FUNCTION Junction Temperature (ûC) -40 -20 0 20 40 60 80 100 120 140 150 5.02 5.01 4.99 4.98 4.97 4.96 4.95 IOUT = 100mA VOUT (V) 5.00V @ 25ûC Output Voltage vs. Temperature -35 -40 -45 -50 0 200 400 600 800 1A -30 -25 -20 -15 -10 Ð40 ° C 25 ° C125 ° C IOUT (A) Load Reg. (mV) VIN =14V Load Regulation vs. Output Current Over Temperature Line Reg. (mV) VIN = 7 to 26V -40ûC 125ûC 25ûC -10 IOUT(A) 0 0.2 0.4 0.6 0.8 1A Line Regulation vs. Output Current Over Temperature 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 IOUT (A) Dropout Voltage (V) -40°C 25°C 125°C Dropout Voltage vs. Output Current Over Temperature

7 Lead 5 Lead TO-220 &

1 NC No Connection. 21 V IN Supply voltage to IC, usually direct from the battery. 3 2 CMOS compatible logical. V OUT is disabled i.e. placed in a high impedance state when ENABLE is high. 4 3 Gnd Ground connection. 5 4 CMOS compatible output lead. goes low whenever VOUT falls out of regulation. The delay is externally programmed. 65 V OUT Regulated output voltage, 5V (typ). 7V OUT(SENSE) Remote sensing of output voltage. RESET RESETRESET ENABLE

mode where it typically draws 250µA. by withdrawing drive current, once the SWITCH is open. ish key housekeeping functions before power is removed. delay, load transient response and loop stability. facturers data sheet usually provides this information. added by the longer leads is negligible. ensure a stable design under steady state conditions. case load conditions for the regulator at low temperature. Figure 5. Microprocessor control of CS8121 using external switching transistor Q1.

CS8121YT5 5 Lead TO-220 Straight CS8121YTVA5 5 Lead TO-220 Vertical CS8121YTHA5 5 Lead TO-220 Horizontal CS8121YTFVA5 5 Lead Overmolded TO-220 Vertical CS8121YDPS7 7 Lead D 2PAK Short-Leaded CS8121YDPSR7 7 Lead D 2PAK Short-Leaded (tape & reel)

Ordering Information

Rev. 5/4/99 Cherry Semiconductor Corporation reserves the right to make changes to the specifications without notice. Please contact Cherry Semiconductor Corporation for the latest available information. Thermal Data 5 Lead 5 Lead 7 Lead TO-220 TO-220 D 2PAK (Overmold) RQJC typ 4.0 2.5 2.5 ûC/W RQJA typ 50 50 10-50* ûC/W *Depending on thermal properties of substrate,RQJA = RQJC + RQCA. Package Specification PACKAGE THERMAL DATAPACKAGE DIMENSIONS IN mm (INCHES) CS8121 © 1999 Cherry Semiconductor Corporation

5 Lead TO-220 (T) Straight

2.87 (.113) 2.62 (.103) 6.93(.273) 6.68(.263) 9.78 (.385) 10.54 (.415) 1.02(.040) 0.63(.025) 1.83(.072) 1.57(.062) 0.56 (.022) 0.36 (.014) 2.92 (.115) 2.29 (.090) 1.40 (.055) 4.06 (.160) 6.55 (.258) 5.94 (.234) 14.22 (.560) 0.76 (.030) 3.71 (.146) 3.96 (.156) 14.99 (.590) 14.22 (.560)

5 Lead TO-220 (TVA) Vertical

1.68 7.51 (.296) 1.78 (.070) 4.34 (.171) 0.56 (.022) 0.36 (.014) 1.40 (.055) 1.14 (.045) 4.83 (.190) 4.06 (.160) 14.99 (.590) 14.22 (.560) 2.92 (.115) 2.29 (.090) .94 (.037) .69 (.027) 8.64 (.340) 7.87 (.310) 6.80 (.268) 10.54 (.415) 9.78 (.385) 2.87 (.113) 2.62 (.103) 6.55 (.258) 5.94 (.234) 3.96 (.156) 3.71 (.146)

5 Lead Overmolded TO-220 (TFVA) Vertical

10.3 (.405) 10.0 (.395) .761 (.030) 15.3 (.604) 3.17 (.125) 2.92 (.115) 7.18 (.283) 6.94 (.273) 3.30 (.130) 2.89 (.114) .69 (.027) 1.70 (.067) 6.80 (.268) 1.68 (.066) TYP 3.30 (.130) 3.05 (.120) DIA 2.79 (.110) 2.54 (.100) 4.70 (.185) 4.44 (.175) 5.89 (.232) 3.10 (.122) .56 (.022) .36 (.014) 4.01 (.158) 8.05 (.317) Note: Leads maintain a right angle with respect to the package body to within ± .015². 3.18 (.125) 2.92 (.115)

7 Lead D2PAK (DPS)* Short-Leaded

1.98 (.078) 1.47 (.058) 14.71 (.579) 13.69 (.539) 4.57 (.180) 4.31 (.170) 1.40 (.055) 1.14 (.045) 2.79 (.110) 2.54 (.100) TERMINAL 8 7.75 (.305) REF 6.50 (.256) REF 10.31 (.406) 10.05 (.396) 1.27 (.050) REF 1.68 (.066) 1.40 (.055) .254 (.010) REF0.91 (.036) 0.66 (.026) 8.53 (.336) 8.28 (.326) 0.10 (.004) 0.00 (.000) *CHERRY SEMICONDUCTOR SHORT-LEADED FOOTPRINT