参数资料
型号: ISL6741IBZ
厂商: INTERSIL CORP
元件分类: 稳压器
英文描述: Flexible Double Ended Voltage and Current Mode PWM Controllers
中文描述: 0.5 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16
封装: ROHS COMPLIANT, PLASTIC, MS-012-AC, SOIC-16
文件页数: 28/29页
文件大小: 635K
代理商: ISL6741IBZ
8
FN9111.4
July 13, 2007
PULSE WIDTH MODULATOR
VERROR Input Impedance
400
-
k
Ω
Minimum Duty Cycle
VERROR < CS Offset (ISL6741)
-
0
%
VERROR < CT Valley Voltage (ISL6740)
-
0
%
Maximum Duty Cycle
VERROR > 4.75V (Note 6)
-
83
-
%
VERROR to PWM Comparator Input Offset
(ISL6741)
(Note 4)
0.4
1.0
1.25
V
VERROR to PWM Comparator Input Gain (ISL6741) (Note 4)
-
0.25
-
VERROR to PWM Comparator Input Gain (ISL6740) (Note 4)
-
0.4
-
V/V
CT to PWM Comparator Input Gain (ISL6740)
(Note 4)
-
0.4
-
V/V
SS to PWM Comparator Input Gain (ISL6740)
(Note 4)
-
0.5
-
V/V
SS to PWM Comparator Input Gain (ISL6741)
(Note 4)
-
0.2
-
V/V
OSCILLATOR
Frequency Accuracy
TA = +25°C
333
351
369
kHz
Frequency Variation with VDD
T = +105°C (f20V- - f9V)/f9V
-2
3
%
T = -40°C (f20V- - f9V)/f9V
-2
3
%
Temperature Stability
(Note 4)
-
8
-
%
Charge Current Gain
1.88
2.0
2.12
μA/μA
Discharge Current Gain
45
55
65
μA/μA
CT Valley Voltage
0.75
0.80
0.85
V
CT Peak Voltage
2.70
2.80
2.90
V
RTD, RTC Voltage
RLOAD = 0
-
2.000
-
V
SYNCHRONIZATION
Input High Threshold (VIH), Minimum
4.0
-
V
Input Low Threshold (VIL), Maximum
-
0.8
V
Input Impedance
4.5
-
k
Ω
Input Frequency Range
(Note 4)
0.6x
Free
Running
-
Free Running
Hz
High Level Output Voltage (VOH)
ILOAD = -1mA
-
4.5
-
V
Low Level Output Voltage (VOL)
ILOAD = 10μA
-
100
mV
SYNC Output Current
VOH > 2.0V (Note 4)
-10
-
mA
SYNC Output Pulse Duration (minimum)
(Notes 4, 5)
250
-
400
ns
SYNC Advance
SYNC rising edge to GATE falling edge,
CGATE = CSYNC = 100pF
(Note 4)
-5
-
ns
SOFTSTART
Charging Current
SS = 2V
-45
-55
-75
μA
SS Clamp Voltage
4.35
4.5
4.65
V
Sustained Over Current Threshold Voltage
(ISL6740)
Charged Threshold minus:
0.20
0.25
0.30
V
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. 9V < VDD < 20 V, RTD = 51.1kΩ, RTC = 10kΩ, CT = 470pF, TA = -40°C to +105°C (Note 3), Typical
values are at TA = +25°C (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6740, 1SL6741
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ISL6741IV-T 功能描述:IC REG CTRLR PWM CM 16-TSSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:100% 电源电压:8.2 V ~ 30 V 降压:无 升压:无 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:0°C ~ 70°C 封装/外壳:8-DIP(0.300",7.62mm) 包装:管件 产品目录页面:1316 (CN2011-ZH PDF)
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