参数资料
型号: NCP1910GEVB
厂商: ON Semiconductor
文件页数: 1/37页
文件大小: 0K
描述: BOARD DEMO NCP1910DEMO-B-TLS
设计资源: NCP1910 Schematic
NCP1910GEVB BOM
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 最低可调至 0.8V
电流 - 输出: 3A
输入电压: 3 ~ 5.5 V
稳压器拓扑结构: 降压
频率 - 开关: 1MHz
板类型: 完全填充
已供物品:
已用 IC / 零件: NCP1910
其它名称: NCP1910GEVBOS
NCP1910
High Performance Combo
Controller for ATX Power
Supplies
Housed in a SO ? 24WB package, the NCP1910 combines a
state ? of ? the ? art circuitry aimed to powering next generation of ATX
or flat TVs converters. With a 65 kHz Continuous Conduction Mode
Power Factor Controller and a LLC controller hosting a high ? voltage
driver, the NCP1910 is ready to power 85+ types of offline power
supplies. To satisfy stringent efficiency considerations, the PFC circuit
implements an adjustable frequency fold back to reduce switching
losses as the load is going light. To cope with all the signal sequencing
required by the ATX and flat TVs specifications, the controller
includes several dedicated pins enabling handshake between the
secondary and the primary sides. These signals include a power ? good
line but also a control pin which turns the controller on and off via an
opto coupler. Safety ? wise, a second OVP input offers the necessary
redundancy in case the main feedback network would drift away.
Finally, a fast fault input immediately reacts in presence of an over
current condition by triggering an auto ? recovery soft ? start sequence.
1
http://onsemi.com
SO ? 24WB Less Pin 21
DW SUFFIX
CASE 752AB
MARKING DIAGRAM
NCP1910XXX
AWLYYWWG
XXXXX
A
WL
= Specific Device Code
= Assembly Location
= Wafer Lot
?
Fixed ? Frequency 65 kHz CCM Power Factor Controller
?
? Independent Over Voltage Protection Sensing Pin with Latch ? off
Capability
?
?
1 A/0.5 A Sink/Source Capability
?
? 20 V Operation
? Multi Output ATX Power Supplies (A version)
? Flat TVs Power Supplies (B version)
Features YY = Year
WW = Work Week
G = Pb ? Free Package
Average Current ? Mode Control for Low Line Distortion
? Dynamic Response Enhancer Reduces Bulk Undershoot ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 36 of this data sheet.
? Adjustable Frequency Fold Back Improves Light Load Efficiency
? Adjustable Line Brown ? out Protection with 50 ms ? on/off Control Pin for Secondary ? Based Remote
Delay to Help Meeting Hold ? up Time Specifications Control
? Programmable Over current Threshold Leads to an ? On ? Board 5 V Reference Voltage for Precise
Optimized Sensing Resistor Thresholds/Hysteresis Adjustments
? ± 1 A peak Current Drive Capability ? Power Good Output Management Signal
? LLC Controller Operates from 25 kHz to 500 kHz ? A Version with Dual Ground Pinout (No Skip),
On Board 600 V High ? Voltage Drivers B Version with Single Ground and Skip Operation for
the LLC Controller
Minimum Frequency Precision Down to ± 3% Over
Temperature Range ? These are Pb ? Free Devices
? Internally Fixed Dead ? Time Value of 300 ns Typical Applications
? Adjustable Soft ? Start Sequence
? Fast Fault Input with Soft ? Start Trigger for Immediate
Auto ? Recovery Protection
? Semiconductor Components Industries, LLC, 2012
December, 2012 ? Rev. 1
1
Publication Order Number:
NCP1910/D
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