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参数资料
| 型号： | SP7651EB |
| 厂商： | Exar Corporation |
| 文件页数： | 3/15页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP7651 |
| 标准包装： | 1 |
| 系列： | * |
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: -40°C < T AMB < 85°C, -40°C<Tj<125°C, 4.5V < V CC < 5.5V, 3V<Vin<20V, BST=LX + 5V, LX = GND =
0.0V, UVIN = 3.0V, CV CC = μF, C COMP = 0. μF, C SS = 50nF, Typical measured at V CC = 5V.
The ? denotes the specifications which apply over the full temperature range, unless otherwise specified.
PARAMETER
MIN. TYP.
MAX. UNITS
CONDITIONS
CONTROL LOOP: PWM COMPARATOR, RAMP & LOOP DELAY PATH
Ramp Amplitude
RAMP Offset
RAMP Offset Temp. Coefficient
0.92
.
.
-2
.28
V
V
mV/ ° C
TA = 25 ° C, RAMP COMP
until GH starts Switching
GH Minimum Pulse Width
90
80
ns
?
Maximum Controllable Duty Ratio
Maximum Duty Ratio
92
00
97
%
%
Maximum Duty Ratio Measured
just before pulsing begins
Valid for 20 cycles
Internal Oscillator Ratio
8 0
900
990
kHz
?
TIMERS: SOFTSTART
SS Charge Current:
0
μA
SS Discharge Current:
mA
?
Fault Present, SS = 0.2V
PROTECTION: Short Circuit & Thermal
Short Circuit Threshold Voltage
0.2
0.25
0.3
V
?
Measured V REF (0.8V) - VFB
Hiccup Timeout
Number of Allowable Clock Cycles at
100% Duty Cycle
Minimum GL Pulse After 20 Cycles
Thermal Shutdown Temperature
Thermal Recovery Temperature
Thermal Hysteresis
200
20
0.5
45
35
0
ms
Cycles
Cycles
° C
° C
° C
V FB = 0.5V
V FB = 0.7V
V FB = 0.7V
OUTPUT: POWER STAGE
High Side R DSON
Synchronous FET R DSON
Maximum Output Current
3
40
40
m ?
m ?
A
V CC = 5V ; I OUT = 3A
T AMB = 25 ° C
V CC = 5V ; I OUT = 3A
T AMB = 25 ° C
Rev J: 3/ 4/07
SP765 Wide Input Voltage Range 3A, 900kHz, Buck Regulator
3
? Copyright 2007 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP7651ER | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP7651ER/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Wide Input Voltage Range 3A, 900kHz, Buck Regulator |
| SP7651ER-L | 功能描述:DC/DC 开关控制器 Buck Regulator RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| SP7651ER-L/TR | 功能描述:开关变换器、稳压器与控制器 WIDE INPUT VOLTAGE RANGE, 3A 900k RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| SP7652 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Wide Input Voltage Range 6A, 600kHz, Buck Regulator |
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