参数资料
| 型号： | NCP1034DR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 16-SOIC |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 500kHz |
| 占空比： | 80% |
| 电源电压： | 10 V ~ 18 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 产品目录页面： | 1118 (CN2011-ZH PDF) |
| 其它名称： | NCP1034DR2GOSDKR |
NCP1034
100V Synchronous PWM
Buck Controller
Description
The NCP1034 is a high voltage PWM controller designed for high
NCP1034D
performance synchronous Buck DC/DC applications with input
voltages up to 100 V. The NCP1034 drives a pair of external
N ? MOSFETs. The switching frequency is programmable from
25 kHz up to 500 kHz allowing the flexibility to tune for efficiency
and size. A synchronization feature allows the switching frequency to
be set by an external source or output a synchronization signal to
multiple NCP1034 controllers. The output voltage can be precisely
regulated using the internally trimmed 1.25 V reference voltage for
low voltage applications. Protection features include user
programmable undervoltage lockout and hiccup current limit.
Features
? High Voltage Operating up to 100 V
? Programmable Switching Frequency up to 500 kHz
? 2 A Output Drive Capability
? Precision Reference Voltage (1.25 V)
? Programmable Soft ? Start with Prebiased Load Capability
? Programmable Overcurrent Protection
? Programmable Undervoltage Protection
? Hiccup Current Limit Using MOSFET R DS(on) Sensing
? External Frequency Synchronization
? 16 Pin SOIC Package
? This is a Pb ? Free Device
Applications
? 48 V Non ? Isolated DC ? DC Converter
? Embedded Telecom Systems
? Networking and Computing Voltage Regulator
? Distributed Point of Load Power Architectures
? General High Voltage DC ? DC Converters
V IN : 48 V
http://onsemi.com
MARKING
DIAGRAM
SOIC ? 16
D SUFFIX
CASE 751B
AWLYWWG
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb ? Free Package
PIN CONNECTIONS
OCset 1 16 UVLO
FB 2 15 RT
Comp 3 14 GND
SS/SD 4 13 OCIN
SYNC 5 12 VCC
PGND 6 11 VS
LDRV 7 10 HDRV
DRVCC 8 9 VB
(Top View )
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 22 of this data sheet.
R4
110k
V CC : 12 V
C2 C3
100n 100n
GND GND R10
12
5
VCC
SYNC
D1
1N4148
8 9
DRVVCC VB
HDRV
VS
10
11
C4
100n
C1A
2u2
Q1
NTD3055
L1
C1B
2u2
GND
V OUT
5 V @ 5 A, 200 kHz
GND
10k
15
4
16
RT
SS/SD
UVLO
OCIN
LDRV
PGND
13
7
6
R8
10k
13 m
Q2
NTD24N06
C9
47 m
C9B
47 m
C9C
47 m
R1
16k9
R9
1k2
1
14
OCSET
GND
FB
COMP
2
3
C8
1n8
R5
3k9
C5
220n
R6
20k
R7
11k
IC1
NCP1034
R3
4k7
C7
C6
12n
R2
5k6
GND
GND GND
GND
GND
330p
Figure 1. Typical Application Circuit
GND
? Semiconductor Components Industries, LLC, 2013
February, 2013 ? Rev. 6
1
Publication Order Number:
NCP1034/D
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