NCV5171EDR2G PDF даташит
Спецификация NCV5171EDR2G изготовлена «ON Semiconductor» и имеет функцию, называемую «Boost Regulators». |
|
Детали детали
Номер произв | NCV5171EDR2G |
Описание | Boost Regulators |
Производители | ON Semiconductor |
логотип |
19 Pages
No Preview Available ! |
NCV5171, NCV5173
1.5 A 280 kHz/560 kHz
Boost Regulators
The NCV5171/73 products are 280 kHz/560 kHz switching
regulators with a high efficiency, 1.5 A integrated switch. The parts
operate over a wide input voltage range, from 2.7 V to 30 V. The
flexibility of the design allows the chip to operate in most power
supply configurations, including boost, flyback, forward, inverting,
and SEPIC. The ICs utilize current mode architecture, which allows
excellent load and line regulation, as well as a practical means for
limiting current. Combining high frequency operation with a highly
integrated regulator circuit results in an extremely compact power
supply solution. The circuit design includes provisions for features
such as frequency synchronization, shutdown, and feedback controls
for positive voltage regulation. These parts are pin-to-pin compatible
with LT1372/1373.
Features
•ăIntegrated Power Switch: 1.5 A Guaranteed
•ăWide Input Range: 2.7 V to 30 V
•ăHigh Frequency Allows for Small Components
•ăMinimum External Components
•ăEasy External Synchronization
•ăBuilt in Overcurrent Protection
•ăFrequency Foldback Reduces Component Stress During an
Overcurrent Condition
•ăThermal Shutdown with Hysteresis
•ăShut Down Current: 50 mA Maximum
•ăPin-to-Pin Compatible with LT1372/1373
•ăNCV Prefix for Automotive and other Applications Requiring Site
and Control Changes
♦ă-40°C to 125°C
•ăThese are Pb-Free Devices
http://onsemi.com
SOIC-8
D SUFFIX
CASE 751
MARKING DIAGRAM AND
PIN CONNECTIONS
1
VC
FB
8
VSW
PGND
Test AGND
SS VCC
517xE = Specific Device Code
x = 1 or 3
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb-Free Package
ORDERING INFORMATION
Device
Package
Shipping†
NCV5171EDR2G SOIC-8 2500 Units / Box
(Pb-Free)
NCV5173EDR2G SOIC-8 2500 Units / Box
(Pb-Free)
†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.
©Ă Semiconductor Components Industries, LLC, 2008
January, 2008 - Rev. 3
1
Publication Order Number:
NCV5171/D
No Preview Available ! |
C1
0.01 mF
SS
3.3 V
R1
5k
NCV5171, NCV5173
R2
3.72 k
1
VC
2 FB
3
Test
4
SS
VSW 8
PGND 7
AGND 6
VCC 5
D1
MBRS120T3
VOUT
5V
L1
22 mH
+ C3
22 mF
R3
1.28 k
+
C2
22 mF
Figure 1. Applications Diagram
MAXIMUM RATINGS
Rating
Value
Unit
Junction Temperature Range, TJ
Storage Temperature Range, TSTORAGE
Package Thermal Resistance, Junction-to-Case, RqJC
Junction-to-Ambient, RqJA
Lead Temperature Soldering: Reflow (Note 1)
-40 to +150
-65 to +150
45
165
260 Peak
(Note 1)
°C
°C
°C/W
°C/W
°C
ESD, Human Body Model
1.2 kV
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. 60-180 seconds minimum above 237°C.
MAXIMUM RATINGS
Pin Name
IC Power Input
Shutdown/Sync
Loop Compensation
Voltage Feedback Input
Test Pin
Power Ground
Analog Ground
Switch Input
Pin Symbol
VCC
SS
VC
FB
Test
PGND
AGND
VSW
VMAX
35 V
30 V
6.0 V
10 V
6.0 V
0.3 V
0V
40 V
VMIN
-0.3 V
-0.3 V
-0.3 V
-0.3 V
-0.3 V
-0.3 V
0V
-0.3 V
ISOURCE
N/A
1.0 mA
10 mA
1.0 mA
1.0 mA
4A
N/A
10 mA
ISINK
200 mA
1.0 mA
10 mA
1.0 mA
1.0 mA
10 mA
10 mA
3.0 A
http://onsemi.com
2
No Preview Available ! |
NCV5171, NCV5173
ELECTRICAL CHARACTERISTICS (2.7 V< VCC < 30 V; -40°C < TJ < 125°C unless otherwise stated.)
Characteristic
Test Conditions
Min
Positive and Negative Error Amplifiers
FB Reference Voltage
FB Input Current
FB Reference Voltage Line Regulation
VC tied to FB; measure at FB
FB = VREF
VC = FB
1.246
-1.0
-
Typ
1.276
0.1
0.01
Max
1.300
1.0
0.03
Unit
V
mA
%/V
Positive Error Amp Transconductance
Positive Error Amp Gain
IVC = ± 25 mA
(Note 2)
300 550 800 mMho
200 500
- V/V
VC Source Current
VC Sink Current
VC High Clamp Voltage
VC Low Clamp Voltage
VC Threshold
Oscillator
Base Operating Frequency
FB = 1.0 V, VC = 1.25 V
FB = 1.5 V, VC = 1.25 V
FB = 1.0 V; VC sources 25 mA
FB = 1.5 V; VC sinks 25 mA
Reduce VC from 1.5 V until switching stops
NCV5171, FB = 1 V
25 50 90 mA
200 625 1500 mA
1.5 1.7 1.9 V
0.25 0.50 0.65
V
0.6 1.05 1.30 V
230 280 310 kHz
Base Operating Frequency
NCV5173, FB = 1 V
460 560 620 kHz
Reduced Operating Frequency
NCV5171, FB = 0 V
30 52 120 kHz
Reduced Operating Frequency
NCV5173, FB = 0 V
60 104 160 kHz
Maximum Duty Cycle
NCV5171
90 94
-%
Maximum Duty Cycle
NCV5173
82 90
-%
FB Frequency Shift Threshold
Frequency drops to reduced operating frequency 0.36 0.40 0.44
V
Sync/ Shutdown
Sync Range
NCV5171
320 - 500 kHz
Sync Range
NCV5173
640 - 1000 kHz
Sync Pulse Transition Threshold
Rise time = 20 ns
2.5 -
-V
SS Bias Current
SS = 0 V
SS = 3.0 V
-15 -3.0 - mA
- 3.0 8.0 mA
Shutdown Threshold
Shutdown Delay
2.7 V ≤ VCC ≤ 12 V
12 V < VCC ≤ 30 V
-
0.40 0.85 1.20
V
12 80 350 ms
12 36 200 ms
2. Guaranteed by design, not 100% tested in production.
http://onsemi.com
3
Скачать PDF:
[ NCV5171EDR2G.PDF Даташит ]
Номер в каталоге | Описание | Производители |
NCV5171EDR2G | Boost Regulators | ON Semiconductor |
Номер в каталоге | Описание | Производители |
TL431 | 100 мА, регулируемый прецизионный шунтирующий регулятор |
Unisonic Technologies |
IRF840 | 8 А, 500 В, N-канальный МОП-транзистор |
Vishay |
LM317 | Линейный стабилизатор напряжения, 1,5 А |
STMicroelectronics |
DataSheet26.com | 2020 | Контакты | Поиск |