NCV4275 ON Semiconductor, NCV4275 Datasheet

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NCV4275

Manufacturer Part Number
NCV4275
Description
5v/450ma Ldo W/ Reset And Delay
Manufacturer
ON Semiconductor
Datasheet

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NCV4275
5.0 V, 450 mA Low-Drop
Voltage Regulator
for use in harsh automotive environments. It includes wide
operating temperature and input voltage ranges. The output is
regulated at 5.0 V and is rated to 450 mA of output current. It also
provides a number of features, including overcurrent protection,
overtemperature protection and a programmable microprocessor
reset. The NCV4275 is available in the DPAK and D
mount packages. The output is stable over a wide output capacitance
and ESR range.
Features
© Semiconductor Components Industries, LLC, 2007
October, 2007 - Rev. 15
D
I
The NCV4275 is an integrated low dropout regulator designed
and Control Changes
5.0 V, ±2% Output Voltage
450 mA Output Current
Very Low Current Consumption
Active Reset Output
Reset Low Down to V
500 mV (max) Dropout Voltage
Fault Protection
Pb-Free Packages are Available
NCV Prefix for Automotive and Other Applications Requiring Site
+45 V Peak Transient Voltage
-42 V Reverse Voltage
Short Circuit
Thermal Overload
Reference
Shutdown
Bandgap
Thermal
Figure 1. Block Diagram
Q
Amplifier
= 1.0 V
+
-
Error
Current Limit and
Saturation Sense
Generator
Reset
2
PAK surface
1
Q
GND
RO
See detailed ordering and shipping information in the
dimensions section on page 12 of this data sheet.
1
1
5
5
ORDERING INFORMATION
A
WL, L
Y
WW
G
Pin 1. I
Tab, 3. GND*
* Tab is connected to
Pin 3 on all packages
http://onsemi.com
http://onsemi.com
CASE 936A
DS SUFFIX
CASE 175AA
2. RO
4. D
5. Q
DT SUFFIX
D
5-PIN
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Lead Free Indicator
2
DPAK
5-PIN
PAK
Publication Order Number:
DIAGRAMS
MARKING
1
AWLYWWG
ALYWW
1
4275G
NCV4275/D
V4275
NC

Related parts for NCV4275

NCV4275 Summary of contents

Page 1

... The output is regulated at 5.0 V and is rated to 450 mA of output current. It also provides a number of features, including overcurrent protection, overtemperature protection and a programmable microprocessor reset. The NCV4275 is available in the DPAK and D mount packages. The output is stable over a wide output capacitance and ESR range. Features • ...

Page 2

... I, operation is assured, but not specified. Wider limits may apply. Thermal dissipation must be observed closely. NCV4275 Input; Battery Supply Input Voltage. Bypass to ground with a ceramic capacitor. Reset Output; Open Collector Active Reset (accurate when I > 1.0 V). ...

Page 3

... Unstable Region for C Q 0.01 0 100 200 300 OUTPUT CURRENT (mA) Figure 2. Output Stability with Output Capacitor ESR NCV4275 (V = 13.5 V; -40°C < T < 150°C; unless otherwise noted. Refer to Figure 13 for conditions Test Conditions 100 mA < < 400 mA, 6.0 V < 100 mA < < ...

Page 4

... T (°C) j Figure 6. Output Current I vs. Temperature T Q 3 25°C 2 2.0 1.5 1.0 0 (mA) Q Figure 8. Current Consumption I Output Current I NCV4275 12 10 8.0 6.0 4.0 2 120 160 Figure 5. Output Voltage V j 1.2 1.0 0.8 0.6 0.4 0 120 160 Figure 7. Output Current I J 800 700 600 500 ...

Page 5

... 100 200 300 400 I (mA) Q Figure 10. Current Consumption I Output Current I Q 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -40 Figure 12. Delay Switching Threshold V NCV4275 25° 500 600 -40 0 vs. Figure 11. Charge Current 13 120 T (° ...

Page 6

... Circuit Description The NCV4275 is an integrated low dropout regulator that provides 5.0 V, 450 mA protected output and a signal for power on reset. The regulation is provided by a PNP pass transistor controlled by an error amplifier with a bandgap reference, which gives it the lowest possible drop out voltage and best possible temperature stability ...

Page 7

... Reset Reset Delay Time Reaction Time V RO Power-on-Reset Thermal Shutdown NCV4275 < Reset Reaction Time Voltage Dip Undervoltage Secondary at Input Spike Figure 14. Reset Timing http://onsemi.com Q, Reset Charge Current + Upper Timing Threshold V Lower Timing Threshold V ...

Page 8

... Features Iq Figure 15. Single Output Regulator with Key Performance Parameters Labeled NCV4275 Heatsinks A heatsink 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 (1) the outside environment will have a thermal resistance ...

Page 9

... Figure 16. Grounded Capacitor Thermal Network (“Cauer” Ladder) Junction Each rung is exactly characterized by its RC-product time constant; amplitudes are the resistances. Figure 17. Non-Grounded Capacitor Thermal Ladder (“Foster” Ladder) NCV4275 2 2 736 mm Cauer Network 2 ...

Page 10

... Cauer networks, are really only convenient mathematical models. Cauer networks can be easily implemented using circuit simulating tools, whereas Foster networks may be more easily implemented using mathematical tools (for instance spreadsheet program), according to the following formula: NCV4275 2 2 ...

Page 11

... Figure 20. Single-Pulse Heating Curves, DPAK 5-Lead 100 10 1.0 0.1 0.01 0.0000001 0.000001 0.00001 Figure 21. Single-Pulse Heating Curves, D NCV4275 110 100 150 200 250 300 350 400 450 500 550 600 650 700 750 2 ) Figure 19. qJA vs. Copper Spreader Area, ...

Page 12

... Figure 23. Duty Cycle for 1” Spreader Boards, D ORDERING INFORMATION Device NCV4275DTRK NCV4275DTRKG NCV4275DS NCV4275DSG NCV4275DSR4 NCV4275DSR4G †For information on tape and reel specifications,including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCV4275 0.0001 0.001 0.01 0.1 PULSE WIDTH (sec) ...

Page 13

... 0.13 (0.005) M 5.8 0.228 *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCV4275 PACKAGE DIMENSIONS DPAK 5, CENTER LEAD CROP DT SUFFIX CASE 175AA-01 ISSUE A SEATING -T- PLANE SOLDERING FOOTPRINT* 6 ...

Page 14

... P 0.058 0.078 1.473 1.981 REF 5 REF S 0.116 REF 2.946 REF U 0.200 MIN 5.080 MIN V 0.250 MIN 6.350 MIN 1.016 0.04 mm inches ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. NCV4275/D ...

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