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PDF CS9202 Data sheet ( Hoja de datos )
| Número de pieza | CS9202 | |
| Descripción | Micropower 3.3 V / 100 mA Linear Regulator with NOCAP | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CS9202 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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CS9202
Micropower 3.3 V, 100 mA
Linear Regulator with
NOCAP™
The CS9202 is a precision 3.3 V, 100 mA voltage regulator with low
quiescent current (450 mA typ. @ 100 mA load). The 3.3 V output is
accurate within ±2% and supplies 100 mA of load current.
The regulator is protected against reverse battery, short circuit, over
voltage, and over temperature conditions. The device can withstand
74 V peak transients making it suitable for use in automotive
environments. ON’s proprietary NOCAP solution is the first
technology which allows the output to be stable without the use of an
external capacitor. NOCAP is suitable for slow switching or steady
loads.
Features
• NOCAP
• Low Quiescent Current (450 mΑ typ. @ 100 mA load)
• 3.3 V, ±2% Output
• 100 mA Output Current Capability
• Fault Protection
− 74 V Peak Transient Voltage
− −15 V Reverse Voltage
− Short Circuit
− Thermal Shutdown
− Overvoltage Shutdown
• Internally Fused Leads
VIN
Current Source
(Circuit Bias)
Over
Voltage
Shutdown
NOCAP
Current Limit
Sense
Thermal
Shutdown
+ − Error
Amplifier
VOUT
Sense(1)
http://onsemi.com
8
1
SO−8
DF SUFFIX
CASE 751
PIN CONNECTIONS AND
MARKING DIAGRAM
1
VOUT
GND
GND
NC
8
VIN
GND
GND
NC
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
Device
Package
Shipping†
CS9202YDF8
SO−8
98 Units/Rail
CS9202YDFR8
SO−8 2500 Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Bandgap
Reference
(1) Contact factory for optional Sense lead.
Figure 1. Block Diagram
GND
© Semiconductor Components Industries, LLC, 2004
May, 2004 − Rev. 12
1
Publication Order Number:
CS9202/D
1 page  
CS9202
CALCULATING POWER DISSIPATION IN A
SINGLE OUTPUT LINEAR REGULATOR
The maximum power dissipation for a single output
regulator (Figure 10) is:
PD(max) + {VIN(max) * VOUT(min)} IOUT(max)
) VIN(max)IQ
(1)
where:
VIN(max) is the maximum input voltage,
VOUT(min) is the minimum output voltage,
IOUT(max) is the maximum output current for the
application, and
IQ is the quiescent current the regulator consumes at
IOUT(max).
Once the value of PD(max) is known, the maximum
permissible value of RΘJA can be calculated:
RQJA
+
150°C *
PD
TA
(2)
IIN
VIN
CS9202
IOUT
VOUT
IQ
The value of RΘJA can then be compared with those in the
package section of the data sheet. Those packages with
RΘJA ’s less than the calculated value in equation 2 will keep
the die temperature below 150°C.
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.
HEAT SINKS
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air.
Each material in the heat flow path between the IC and the
outside environment will have a thermal resistance. Like
series electrical resistances, these resistances are summed to
determine the value of RΘJA:
RQJA + RQJC ) RQCS ) RQSA
(3)
where:
RΘJC = the junction−to−case thermal resistance,
RΘCS = the case−to−heatsink thermal resistance, and
RΘSA = the heatsink−to−ambient thermal resistance.
RΘJC appears in the package section of the data sheet.
Like RΘJA, it too is a function of package type. RΘCS and
RΘSA are functions of the package type, heatsink and the
interface between them. These values appear in heat sink
data sheets of heat sink manufacturers.
Figure 10. Single output regulator with key
performance parameters labeled.
http://onsemi.com
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet CS9202.PDF ] | |
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