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PDF NCV33163 Data sheet ( Hoja de datos )
| Número de pieza | NCV33163 | |
| Descripción | Step-Up/Down/ Inverting Switching Regulators | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCV33163
Product Preview
2.5 A, Step−Up/Down/
Inverting Switching
Regulators
The NCV33163 series are monolithic power switching regulators
that contain the primary functions required for dc-to-dc converters.
This series is specifically designed to be incorporated in step-up,
step-down, and voltage-inverting applications with a minimum
number of external components.
These devices consist of two high gain voltage feedback
comparators, temperature compensated reference, controlled duty
cycle oscillator, driver with bootstrap capability for increased
efficiency, and a high current output switch. Protective features consist
of cycle-by-cycle current limiting, and internal thermal shutdown.
Also included is a low voltage indicator output designed to interface
with microprocessor based systems.
These devices are contained in a 16 pin dual-in-line heat tab plastic
package for improved thermal conduction.
• Output Switch Current in Excess of 2.0 A
• Operation from 2.5 V to 60 VOC Input
• Low Standby Current
• Precision 2% Reference
• Controlled Duty Cycle Oscillator
• Driver with Bootstrap Capability for Increased Efficiency
• Cycle-by-Cycle Current Limiting
• Internal Thermal Shutdown Protection
• Low Voltage Indicator Output for Direct Microprocessor Interface
• Heat Tab Power Package
• Moisture Sensitivity Level (MSL) Equals 1
• NCV Prefix, for Automotive and Other Applications Requiring Site
and Change Control
http://onsemi.com
16
1
MARKING
DIAGRAMS
16
PDIP-16
P SUFFIX
CASE 648C
NCV33163P
AWLYYWW
1
16
SO-16W
DW SUFFIX NCV33163DW
16 CASE 751G AWLYYWW
1
A = Assembly Loc1ation
WL = Wafer Lot
YY = Year
WW = Work Week
PIN CONNECTIONS
LVI Output 1
Voltage Feedback 2 2
Voltage Feedback 1 3
4
Gnd
5
Timing Capacitor 6
VCC 7
Ipk Sense 8
16 Bootstrap Input
15 Switch
14 Emitter
13
Gnd
12
11
Switch Collector
10
9 Driver Collector
(Top View)
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
ORDERING INFORMATION
Device
Package
Shipping
NCV33163DW
SO-16W 47 Units/Rail
NCV33163DWR2 SO-16W
1000 Tape &
Reel
NCV33163P
PDIP-16 25 Units/Rail
© Semiconductor Components Industries, LLC, 2002
November, 2002 - Rev. 0
1
Publication Order Number:
NCV33163/D
1 page  
NCV33163
0
VCC
Darlington Configuration
Emitter Sourcing Current to Gnd
− 0.4 Pins 7, 8, 10, 11 = VCC
Pins 4, 5, 12, 13 = Gnd
TA = 25°C, (Note 2)
− 0.8
Bootstrapped, Pin 16 = VCC + 5.0 V
−1.2
−1.6 Non−Bootstrapped, Pin 16 = VCC
− 2.0
0
0.8 1.6 2.4
IE, EMITTER CURRENT (A)
3.2
Figure 8. Output Switch Source Saturation
versus Emitter Current
1.2
1.0 Darlington, Pins 9, 10, 11 Connected
0.8
Grounded Emitter Configuration
0.6 Collector Sinking Current From VCC
Pins 7, 8 = VCC = 15 V
0.4
Pins 4, 5, 12, 13, 14, 15 = Gnd
TA = 25°C, (Note 2)
0.2 Saturated Switch, RPin9 = 110 W to VCC
Gnd
0
0 0.8 1.6 2.4 3.2
IC, COLLECTOR CURRENT (A)
Figure 9. Output Switch Sink Saturation
versus Collector Current
0
Gnd
− 0.4 IC = 10 mA
− 0.8
IC = 10 mA
− 1.2
− 1.6
− 2.0
− 55
VCC = 15 V
Pins 7, 8, 9, 10, 16 = VCC
Pins 4, 6 = Gnd
Pin 14 Driven Negative
− 25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 10. Output Switch Negative Emitter
Voltage versus Temperature
0.5
VCC = 5 V
0.4 TA = 25°C
0.3
0.2
0.1
0
0 2.0 4.0 6.0 8.0
Isink, OUTPUT SINK CURRENT (mA)
Figure 11. Low Voltage Indicator Output Sink
Saturation Voltage versus Sink Current
254
VCC = 15 V
252
250
248
246
− 55
− 25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 12. Current Limit Comparator Threshold
Voltage versus Temperature
1.6
VCC = 15 V
1.4 VIpk (Sense) = 15 V
1.2
1.0
0.8
0.6
− 55
− 25 0 25 50 75
TA, AMBIENT TEMPERATURE (°C)
100 125
Figure 13. Current Limit Comparator Input Bias
Current versus Temperature
http://onsemi.com
5
5 Page 
NCV33163
RSC
8
0.25 V
+−
Current
Limit
+
Vin
12 V
0.075
Cin
+7
+
330
CT
680 pF
6 Oscillator
5
Thermal
R
Q
S
Latch
4
+
9
10
Q1 11
Q2
12
60
13
Low Voltage
Indicator
Output
3
2
1
RLVI
1.0 k
+
+
−
LVI
45 k
+
+
+
−
Feedback
Comparator
1.25 V 15 k
2.0 mA
+
1.125 V
+ 7.0 V
14
15
16
R1
2.2 k
R2
47 k
(Bottom View)
180 mH
L Coilcraft
LO451−A
1N5822
+ CO
330
Vout
28 V/600 mA
Test
Line Regulation
Load Regulation
Output Ripple
Efficiency
Condition
Vin = 9.0 V to 16 V, IO = 0.6 A
Vin = 12 V, IO = 0.1 A to 0.6 A
Vin = 12 V, IO = 0.6 A
Vin = 12 V, IO = 0.6 A
Figure 23. Step-Up Converter
Results
30 mV = ± 0.05%
50 mV = ± 0.09%
140 mVpp
88.1%
89
89
7
+
6
5
10
Q1 11
Q2
12
7
+
6
5
10
Q1 11
Q2
12
4 + 13
3 14 Q3
2 15
4 + 13
3 14 Q3
2 15
1 16
+
(Bottom View)
Figure 24A. External NPN Switch
1 16
+
(Bottom View)
Figure 24B. External PNP Saturated Switch
Figure 24. External Current Boost Connections for Ipk (Switch) Greater Than 2.5 A
http://onsemi.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet NCV33163.PDF ] | |
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