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| 型号： | IR3651STRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 14-SOIC |
| 标准包装： | 2,500 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 460kHz |
| 占空比： | 80% |
| 电源电压： | 4.5 V ~ 13.2 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： | 0°C ~ 125°C |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 配用： | IRDC3651-ND - KIT REF DESIGN SYNCH BUCK REG |
Data Sheet No. PD94720revC
IR3651SPBF
HIGH VOLTAGE SYNCHRONOUS PWM BUCK CONTROLLER
Features
Description
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High Voltage Operating up to 100V
Programmable Switching Frequency up to 400kHz
1A Output Drive Capability
Precision Reference Voltage (1.25V)
Programmable Soft-Start
Programmable Over Current Protection
Hiccup Current Limit Using MOSFET R DS(on)
sensing
External Frequency Synchronization
14-pin SOIC Package
The IR3651 is a high voltage PWM controller
designed for high performance synchronous Buck
DC/DC applications. The IR3651 drives a pair of
external N-MOSFETs using a programmable
switching frequency up to 400kHz allows flexibility
to tune the operation of the IC to meet system
level requirements, and synchronization allows
the simplification of system level filter design. The
output voltage can be precisely regulated using
the internal 1.25V reference voltage for low
Applications
voltage applications. Protection such as under
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48V non-isolated DC to DC Converter
Embedded Telecom Systems
Networking and Computing Voltage Regulator
Distributed Point of Load Power Architectures
General high voltage DC/DC Converters
V aux =12V
voltage lockout and hiccup current limit are
provided to give required system level security in
the event of fault conditions.
12V-100V
Vin: Vin: 36V-75V
C3
C1
C4
C2
DRVcc
Vb
Vcc
HDrv
Q1
SYNC
Vs
L1
Vout
Rt
IR3651S
OCset
R OCset
R5
C6
SS/SD
LDrv
PGnd
Q2
C8
C5
R1
R3
C9
Gnd
Comp
Fb
C7
R4
R2
C10
Typical application Circuit
ORDERING INFORMATION
PKG
DESIG
S
S
PACKAGE
DESCRIPTION
IR3651SPBF
IR3651STRPBF
PIN PARTS PARTS
COUNT PER TUBE PER REEL
14 55 -------
14 -------- 2500
T&R
ORIANTAION
Fig A
06/08/2011
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相关代理商/技术参数 |
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