CS8126

Features:

·Low Dropout Voltage (0.6V at 0.5A)
·3% Output Accuracy
·Active RESET
·External RESET Delay for Reset
·Protection Circuitry Reverse Battery Protection +60V, -50V Peak  Transient oltage Short Circuit Protection Internal Thermal Overload Protection


Pinout




Specifications

Power Dissipation.........................................................................................................Internally Limited
Peak Transient Voltage (46V Load Dump) ...............................................................................-50V, 60V
Output Current ............................................................................................................Internally Limited
ESD Susceptibility (Human Body Model).............................................................................................4kV
Junction Temperature........................................................................................................-40 to 150
Storage Temperature........................................................................................................-55 to 150
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


Description

The CS8126 is a low dropout, high cur- rent 5V linear regulator. It is an improved replacement for the CS8156.

Improvements include higher accuracy, tighter saturation control, better supply rejection, and enhanced RESET circuit- ry. Familiar PNP regulator features such as reverse battery protection, over- voltage shutdown, thermal shutdown, and current limit make the CS8126 suit- able for use in automotive and battery operated equipment. Additional on- chip filtering has been included to enhance rejection of high frequency transients on all external leads.

CS8126 active microprocessor RESET func- tion 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 shut- down, thermal shutdown, or others that cause the output to become unregulat- ed. CS8126 function is independent of the input voltage and will function correct- ly with an output voltage as low as 1V.
Hysteresis is included in both the reset and Delay comparators for enhanced noise immunity. A latching discharge circuit CS8126 is used to discharge the Delay capacitor, even when triggered by a rel- atively short fault condition. This circuit improves upon the commonly used SCR structure by providing full capaci- tor discharge (0.2V type).