参数资料
型号: ISL6744AU-T
厂商: Intersil
文件页数: 14/18页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 8-MSOP
标准包装: 2,500
PWM 型: 电压模式
输出数: 2
频率 - 最大: 2MHz
占空比: 100%
电源电压: 9 V ~ 16 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 105°C
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
ISL6744
13.5
13
12.5
12
11.5
11
10.5
42
43
44
45
46
47
48
49
50
51
52
53
INPUT VOLTAGE (V)
FIGURE 12. LINE REGULATION AT I OUT = 1A
Waveforms
FIGURE 14. FET DRAIN-SOURCE VOLTAGE
Typical waveforms can be found in the following Figures.
Figure 13 shows the output voltage ripple and noise at a 5A.
FIGURE 15. FET D-S VOLTAGE NEAR-ZVS TRANSITION
FIGURE 13. OUTPUT RIPPLE AND NOISE - 20MHz BW
Figures 14 and 15 show the voltage waveforms at the
switching node shared by the upper FET source and the
lower FET drain. In particular, Figure 15 shows near ZVS
operation at 5A of load when the upper FET is turning off
and the lower FET is turning on. ZVS operation occurs
completely, implying that all the energy stored in the node
capacitance has been recovered. Figure 16 shows the
switching transition between outputs, OUTA and OUTB
during steady state operation. The deadtime duration of
46.9ns is clearly shown.
A 2.7V zener is added between the Vdd pins of ISL6700 and
ISL6744, in order to ensure that the PWM turns on only after
the driver has turned on, thereby ensuring the soft-start
function. Figure 17 shows the soft-start operation.
FIGURE 16. OUTA - OUTB TRANSITION
14
FN9147.8
September 22, 2005
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相关代理商/技术参数
参数描述
ISL6744AUZ 功能描述:IC REG CTRLR BUCK PWM VM 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR)
ISL6744AUZ-T 功能描述:IC REG CTRLR BUCK PWM VM 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR)
ISL6744AUZ-TR5 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述:
ISL6744AUZ-TR5252 功能描述:IC REG CTRLR BUCK PWM VM 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR)
ISL6744EVAL1 功能描述:EVALUATION BOARD ISL6744 RoHS:否 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像,彩色(RGB) 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP