CS8141YTHA7 ON Semiconductor, CS8141YTHA7 Datasheet - Page 13

• Manufacturer Part Number: CS8141YTHA7
• Description: IC REG LDO LIN 500MA 5V TO220-7
• Manufacturer: ON Semiconductor

Specifications of CS8141YTHA7

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 7 ~ 26 V
• Voltage - Dropout (typical): 1.25V @ 500mA
• Number Of Regulators: 1
• Current - Output: 500mA
• Current - Limit (min): 700mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-7 (Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: CS8141YTHA7OS

permissible value of R
package section of the data sheet. Those packages with
R
the die temperature below 150°C.
dissipate the heat generated by the IC, and an external
heatsink will be required.
qJA
V
Once the value of P
The value of R
In some cases, none of the packages will be sufficient to
IN
’s less than the calculated value in equation 2 will keep
Figure 23. Single Output Regulator With Key
Performance Parameters Labeled
I
IN
qJA
R QJA +
can then be compared with those in the
REGULATOR
qJA
D(max)
SMART
Control
Features
can be calculated:
150°C * T A
I
is known, the maximum
P D
Q
®
I
OUT
CS8140, CS8141
http://onsemi.com
V
OUT
(2)
13
package to improve the flow of heat away from the IC and
into the surrounding air.
outside environment will have a thermal resistance. Like
series electrical resistances, these resistances are summed to
determine the value of R
where:
R
functions of the package type, heatsink and the interface
between them. These values appear in heat sink data sheets
of heat sink manufacturers.
qJA
A heat sink effectively increases the surface area of the
Each material in the heat flow path between the IC and the
R
R
R
R
QJC
qCS
qSA
qJC
, it too is a function of package type. R
appears in the package section of the data sheet. Like
= the case−to−heatsink thermal resistance, and
= the junction−to−case thermal resistance,
= the heatsink−to−ambient thermal resistance.
R QJA + R QJC ) R QCS ) R QSA
HEAT SINKS
qJA
.
qCS
and R
qSA
are
(3)