CS8128
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CS8128

Product Category: IC Chips
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Description:
  datasheetCS8128 Datasheet
Package: SOP-8
Quantity: 680 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Features, Applications

The CS8128 contains all the necessary control circuitry to implement a 5V linear regulator. An external pass device is used to produce superior performance compared to conventional monolithic regulators. The CS8128 with a TIP42 PNP transistor typically provides a 100mV dropout voltage at 500mA, increasing at 3A. Quiescent current 500mA is only 5mA. Monolithic regulators cannot approach these figures because their power transistors do not provide the high beta and excellent saturation characteristics at high currents. The CS8128 is compatible with a wide variety of external transistors, allowing flexibility for thermal, space, and cost management.


The CS8128 includes thermal shutdown and externally programmable current limit and over-voltage shutdown, making it suitable for use in automotive and switching regulator post regulator applications. An optional external RC filter added to the CS8128 supply lead provides EMC hardening in addition to the on-chip EMC hardening. The SENSE


An active microprocessor RESET function is included on-chip with externally programmable delay time. During power-up, or after detection of any error in the regulated output, the RESET lead will remain in the low state for the duration of the delay. Types of errors include short circuit, low input voltage, overvoltage shutdown, thermal shutdown, or others that cause the output to become unregulated. This function is independent of the input voltage and will function correctly with an output voltage as low as 1V. Hysteresis is included in both the reset and delay comparators for noise immunity and to prevent oscillations. A latching discharge circuit is used to discharge the delay capacitor, even when triggered by a relatively short fault condition. This circuit improves upon the commonly used SCR structure by providing improved noise immunity and full capacitor discharge (0.2V typ).


lead allows remote sensing of the output voltage for improved regulation.

s Externally Set Delay for Reset s 60V Load Dump Protection s Internal Thermal Overload Protection s 3% Output Accuracy s Active RESET s Noise Immunity s On Chip EMC Hardening Protection Incorporated s Externally Set Current Limit s Externally Set Overvoltage Shutdown


+ Latching Discharge Delay Comparator Reset Comparator

ON Semiconductor 2000 South County Trail, East Greenwich, RI 02818 Tel: (401)885-3600 Fax: (401)885-5786 N. American Technical Support: 800-282-9855 Web Site: www.cherry-semi.com


Absolute Maximum Ratings Power Dissipation.............................................................................................................................................Internally Limited Input Voltage..................................................................................................................................................................-0.3V, 26V Transient Input Voltage............................................................................................................................................................60V Output Current...............................................................................................................................................Externally Limited ESD Susceptibility (Human Body Model)..............................................................................................................................2kV Junction to 150°C Storage to 150°C Lead Temperature Soldering Wave Solder (through hole styles only).....................................................................................10 sec. max, 260°C peak Reflow (SMD styles only)......................................................................................60 sec. max above 183°C, 230°C peak


(unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

s Output Stage (VOUT) Output Voltage Dropout Voltage Supply Current IQ

4.85 IOUT = 500mA, note 1 IOUT 10mA IOUT 500mA IOUT 3A, note 1 6V VIN 26V, IOUT 5mA 5V IOUT 500mA, VIN 120Hz, 7V VIN 17V, IOUT = 350mA VSENSE = 0V


Line Regulation Load Regulation Ripple Rejection VIN Overvoltage Shutdown Drive Current s RESET and Delay Functions Delay Charge Current, ICharge RESET Threshold VRTH VRTL RESET Hysteresis VRH Delay Threshold VDTC VDTD Delay Hysteresis, VDH RESET Output Voltage Low RESET Output Leakage Current Delay Capacitor (Vdis) Discharge Voltage Delay Time


VDelay = 2V VOUT Increasing VOUT Decreasing Charge Discharge VDTC - VDTD 1V < VOUT < VRTL, 3k to VOUT VD > VDTC , VOUT > VRTH Discharge Latched "ON", VOUT > VRTH CDelay = 0.1μF, note 2


Unregulated supply voltage to the IC. Kelvin connection which allows remote sensing of output voltage for improved regulation. Timing CAP for RESET function CMOS/TTL compatible open collector output. RESET goes low whenever VOUT drops below 6% of it's typical value. Ground connection Overvoltage shutdown control input. Ground connection Supplies base current to PNP pass transistor or threshold voltage to FET pass transistor.


Typical Performance Characteristics (per Test Circuit)

Search Part number : "CS812" Included word is 10
Part Number Manufacturer Package Quantity Description
CS8120M CHIPSTA MSOP8 27799
CS8120T DFN2X2 13895
CS8120YDR14 ON Semiconductor 14-SOIC (0.154", 3.90mm Width) 3560 IC REG LDO 5V 0.3A 14SOIC
CS8121 CS TO-2637 31860
CS8122 CS SOP-8 28860
CS8126-1 ON TO-220 5 860
CS8126-1YDPSR7G ON Semiconductor TO-263-8, D²Pak (7 Leads + Tab), TO-263CA 5448 IC REG LDO 5V 0.5A D2PAK
CS8129 ONSEMIC SOP16 1035
CS8120 CS MSOP-8 32160
CS8120D CHIPS QFN 3500
CS8128 RELATED PRODUCT PICTURE
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