ncp1030 ON Semiconductor, ncp1030 Datasheet

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ncp1030

Manufacturer Part Number
ncp1030
Description
Low Power Pwm Controller With On-chip Power Switch And Startup Circuits For 48 V Telecom Systems
Manufacturer
ON Semiconductor
Datasheet

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Part Number
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Part Number:
ncp1030DMR2G
Manufacturer:
NUVOTON
Quantity:
20 000
NCP1030, NCP1031
Low Power PWM Controller
with On-Chip Power Switch
and Startup Circuits for
48 V Telecom Systems
monolithic switching regulators with on-chip Power Switch and Startup
Circuits. The NCP103x family incorporates in a single IC all the active
power, control logic and protection circuitry required to implement, with
minimal external components, several switching regulator applications,
such as a secondary side bias supply or a low power dc-dc converter.
This controller family is ideally suited for 48 V telecom, 42 V automotive
and 12 V input applications. The NCP103x can be configured in any
single-ended topology such as forward or flyback. The NCP1030 is
targeted for applications requiring up to 3 W, and the NCP1031 is
targeted for applications requiring up to 6 W.
configured for secondary or primary side regulation operation in
isolated and non-isolated configurations. The fixed frequency oscillator
is optimized for operation up to 1 MHz and is capable of external
frequency synchronization, providing additional design flexibility. In
addition, the NCP103x incorporates individual line undervoltage and
overvoltage detectors, cycle by cycle current limit and thermal
shutdown to protect the controller under fault conditions. The preset
current limit thresholds eliminate the need for external sensing
components.
Features
Typical Applications
© Semiconductor Components Industries, LLC, 2007
October, 2007 - Rev. 8
The NCP1030 and NCP1031 are a family of miniature high-voltage
The internal error amplifier allows the NCP103x family to be easily
POE (Power Over Ethernet)/PD. Refer to Application Note AND8247.
On Chip High 200 V Power Switch Circuit and Startup Circuit
Internal Startup Regulator with Auxiliary Winding Override
Operation up to 1 MHz
External Frequency Synchronization Capability
Frequency Fold-down Under Fault Conditions
Trimmed ± 2% Internal Reference
Line Undervoltage and Overvoltage Detectors
Cycle by Cycle Current Limit Using SENSEFETt
Active LEB Circuit
Overtemperature Protection
Internal Error Amplifier
Pb-Free Packages are Available
Secondary Side Bias Supply for Isolated dc-dc Converters
Stand Alone Low Power dc-dc Converter
Low Power Bias Supply
Low Power Boost Converter
1
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
8
8
1
(Note: Microdot may be in either location)
COMP
COMP
1
GND
GND
1
V
ORDERING INFORMATION
V
C
FB
C
FB
8
T
T
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb-Free Package
PIN CONNECTIONS
Ç
Ç Ç
Ç Ç
Ç Ç
Ç
http://onsemi.com
1
2
3
4
CASE 488AF
MN SUFFIX
DM SUFFIX
CASE 846A
CASE 751
D SUFFIX
Micro8t
(Top View)
DFN-8
(Top View)
SO-8
EP Flag
Publication Order Number:
Ç Ç
Ç Ç Ç Ç
Ç Ç Ç Ç
Ç Ç Ç Ç
Ç Ç
7
6
5
8
8
1
DIAGRAMS
V
V
UV
OV
MARKING
V
V
UV
OV
8
1
DRAIN
CC
DRAIN
CC
NCP1030/D
ALYW G
AYWG
1030
N1031
1031
ALYW
NCP
G
G
G

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ncp1030 Summary of contents

Page 1

... This controller family is ideally suited for 48 V telecom automotive and 12 V input applications. The NCP103x can be configured in any single-ended topology such as forward or flyback. The NCP1030 is targeted for applications requiring and the NCP1031 is targeted for applications requiring ...

Page 2

... Dominant Latch R PWM Latch 4.5 V Figure 1. NCP1030/31 Functional Block Diagram Ground reference pin for the circuit. An external capacitor connected to this pin sets the oscillator frequency MHz. The oscillator can be synchronized to a higher frequency by charging or discharging C to trip the internal 3.0 V/3.5 V comparator fault condition exists, the power T switch is disabled and the frequency is reduced by a factor of 7 ...

Page 3

... START DRAIN 0 V Power-up & standby Operation Figure 3. Auxiliary Winding Operation with Output Overload Timing Diagram NCP1030, NCP1031 Normal Operation Output Overload http://onsemi.com 3 COMP Voltage Current Limit Propagation Delay Current Limit Threshold Output Overload ...

Page 4

... Machine Model Method 200 V. Pin 8 is connected to the High Voltage Startup and Power Switch Circuits and rated only to the maximum voltage rating of the part, or 200 V. B. This device contains Latchup protection and exceeds $100 mA per JEDEC Standard JESD78. NCP1030, NCP1031 Rating http://onsemi.com ...

Page 5

... COMP Voltage Threshold (V Increasing) in Voltage Hysteresis Input Bias Current 1. Production testing for NCP1030DMR2 is performed at 25°C only; limits at -40°C and 125°C are guaranteed by design. NCP1030, NCP1031 ( 560 pF, V DRAIN 25°C unless otherwise noted.) (Note 1) ...

Page 6

... Power Switch Enabled Power Switch Disabled Non-Fault condition (V Fault Condition ( Production testing for NCP1030DMR2 is performed at 25°C only; limits at -40°C and 125°C are guaranteed by design. 3. Oscillator frequency can be externally synchronized to the maximum frequency of the device. 4. Guaranteed by design only. NCP1030, NCP1031 (V ...

Page 7

... V , SUPPLY VOLTAGE (V) CC Figure 4. NCP1030 Startup Current vs. Supply Voltage CC(on -50 - JUNCTION TEMPERATURE (°C) J Figure 6. NCP1030 Startup Current vs. Junction Temperature 12 NCP1030 100 125 V , DRAIN VOLTAGE (V) DRAIN Figure 8 ...

Page 8

... Figure 12. Minimum Startup Voltage vs. Junction Temperature 145 140 135 130 125 120 115 110 105 100 95 -50 - JUNCTION TEMPERATURE (°C) J Figure 14. COMP Source Current vs. Junction Temperature NCP1030, NCP1031 TYPICAL CHARACTERISTICS 6.80 6.75 6.70 6.65 6.60 6.55 6.50 6.45 6.40 6.35 6.30 100 125 150 -50 -25 T Figure 11. Undervoltage Lockout Threshold 2. 0.2 V CC(on) 2 ...

Page 9

... OSC 75.5 75.0 74 1000 kHz OSC 74.0 73.5 73.0 72.5 72.0 -50 - JUNCTION TEMPERATURE (°C) J Figure 20. Maximum Duty Cycle vs. Junction Temperature NCP1030, NCP1031 TYPICAL CHARACTERISTICS 220 210 200 190 180 170 160 150 140 130 120 100 125 150 -50 - Figure 17. Line Under/Overvoltage Hysteresis 1100 V ...

Page 10

... T = 25°C J 550 525 500 475 450 425 400 375 350 375 400 425 450 CURRENT SLEW RATE (mA/mS) Figure 26. NCP1030 Current Limit Threshold vs. Current Slew Rate NCP1030, NCP1031 TYPICAL CHARACTERISTICS NCP1031 20 15 NCP1030 160 200 Figure 23 ...

Page 11

... V , SUPPLY VOLTAGE (V) CC Figure 28. Operating Supply Current vs. Supply Voltage 200 Figure 30. Operating Supply Current vs. NCP1030, NCP1031 TYPICAL CHARACTERISTICS 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 -50 -25 Figure 29. Supply Current vs. Junction T NCP1031 NCP1030 300 400 500 600 700 800 f , OSCILLATOR FREQUENCY (kHz) ...

Page 12

... NCP103x GND V DRAIN COMP OV Figure 31. Secondary Side Bias Supply Configuration + NCP103x GND COMP Figure 32. Boost Circuit Configuration NCP1030, NCP1031 V DRAIN http://onsemi.com out - SECONDARY SIDE CONTROL V GND BIAS out - ...

Page 13

... The startup regulator turns CC ON again once V reaches 7.5 V. This “7.5-10” mode of CC operation is known as Dynamic Self Supply (DSS). The NCP1030 and NCP1031 startup currents are 12 mA and 16 mA, respectively falls below 7.5 V, the device enters a re-start mode. CC While in the re-start mode, the V ...

Page 14

... V and 3.5 V. Under normal operating conditions, the charge (I ) and discharge (I CT(C) currents are typically 215 mA and 645 mA, respectively. The charge:discharge current ratio of 1:3 discharges of the total period. The Power Switch is disabled while C NCP1030, NCP1031 is discharging, guaranteeing a maximum duty cycle shown in Figure 35. C Ramp T Power Switch ...

Page 15

... Ramp and the COMP Application Considerations bias supply for telecom system was designed using the NCP1030. The bias supply generates an isolated 12 V output. The circuit schematic is shown in Figure 38. Application Note AND8119/D describes the design of the bias supply. ...

Page 16

... ORDERING INFORMATION Device NCP1030DMR2 NCP1030DMR2G NCP1031DR2 NCP1031DR2G NCP1031MNTXG †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. NCP1030, NCP1031 Package Micro8 Micro8 (Pb-Free) SOIC-8 SOIC-8 (Pb-Free) DFN8 (Pb-Free) http://onsemi ...

Page 17

... SEATING PLANE SIDE VIEW 2.21 8X 0.35 DIMENSIONS: MILLIMETERS *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCP1030, NCP1031 PACKAGE DIMENSIONS 8 PIN DFN, 4x4 CASE 488AF-01 ISSUE Ç Ç Ç ...

Page 18

... PLANE A 0.038 (0.0015) A1 *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCP1030, NCP1031 PACKAGE DIMENSIONS Micro8 DM SUFFIX CASE 846A-02 ISSUE G NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. ...

Page 19

... ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Micro8 is a trademark of International Rectifier. SENSEFET is a trademark of Semiconductor Components Industries, LLC. The products described herein (NCP1030 and NCP1031) may be covered by one or more of the following U.S. patents: 5,418,410; 5,477,175. There may be other patents pending. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) ...

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