CS8101 Cherry Semiconductor Corporation, CS8101 Datasheet
CS8101
Available stocks
Related parts for CS8101
CS8101 Summary of contents
Page 1
... Micropower 5V, 100mA Low Dropout Linear Regulator with RESET and ENABLE Description The CS8101 is a precision 5V micropower voltage regulator with very low quiescent current (70µA typ at 100µA load). The 5V output is accurate within ±2% and supplies 100mA of load current with a typi- cal dropout voltage of only 400mV. ...
Page 2
Power Dissipation.............................................................................................................................................Internally Limited Transient Peak Voltage (46V Load Dump) ..................................................................................................................-15V, 60V Output Current .................................................................................................................................................Internally Limited ESD Susceptibility (Human Body Model) ..............................................................................................................................2kV Operating Temperature..........................................................................................................................................-40¡C to 125¡C Junction Temperature .............................................................................................................................................-40¡C to 150¡C Storage Temperature ................................................................................................................................................-55C to 150¡C Lead Temperature Soldering Wave Solder ...
Page 3
... This thermal management function is an effective means to prevent die overheating since the load current is the principle heat source in the IC. Regulator Control Functions The CS8101 contains two microprocessor compatible con- ENABLE RESET trol functions: and ...
Page 4
... V BAT 0.1mF SWITCH Figure 4. Microprocessor Control of CS8101 using external switching transistor Q The circuit depicted in Figure 4 lets the microprocessor control its power source, the CS8101 regulator. An I/O port on the µP and the SWITCH port are used to drive the base of Q1. When Q1 is driven into saturation, the voltage ...
Page 5
... Table 1. Logic Control of CS8101 Output Microprocessor I/O drive Switch ENABLE ON Closed LOW Open LOW OFF Closed LOW Open HIGH The I/O port of the microprocessor typically provides 50µA to Q1. In automotive applications the SWITCH is connected to the ignition switch. Stability Considerations The output or compensation capacitor helps determine three main characteristics of a linear regulator: start-up delay, load transient response and loop stability ...
Page 6
In some cases, none of the packages will be sufficient to dissipate the heat generated by the IC, and an external heatsink will be required Smart IN Regulator } Control Features I Q Figure 6: Single output ...
Page 7
PACKAGE DIMENSIONS IN mm (INCHES) Lead Count Metric Max 8L SOIC 5.00 20L SOIC 13.00 1.27 (.050) 0.40 (.016) REF: JEDEC MS-012 1.27 (.050) 0.40 (.016) REF: JEDEC MS-013 Package Specification D English Thermal Data Min Max Min R typ ...
Page 8
... Description CS8101YD8 8L SOIC CS8101YDR8 8L SOIC (tape & reel) CS8101YDWF20 20L SOIC (internally fused leads) CS8101YDWFR20 20L SOIC (internally fused leads) (tape & reel) CS8101YT5 5L TO-220 CS8101YTVA5 5L TO-220 Vertical CS8101YTHA5 5L TO-220 Horizontal Rev. 4/9/99 Package Specification 1.40 (.055) 2.87 (.113) 1.14 (.045) 2.62 (.103) 4.83 (.190) 4.06 (.160) 6.55 (.258) 5 ...