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参数资料
| 型号： | ISL6551EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 9/26页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD ISL6551 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 3.3V |
| 电流 - 输出： | 60A |
| 输入电压： | 36 ~ 75 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 470kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6551 |
ISL6551
Shutdown Timing Diagrams
LATSD
C
D
LATCH CANNOT BE RESET BY ON/OFF
ON/OFF
A
VDD
PKILIM > BGREF
E
VDD ON
LATCH RESET BY
F
VDD OFF
B
REMOVING VDD
ILIM_OUT
SOFT
START
DRIVER
ENABLE
SOFT-START
SHUTDOWN
FAULT
PKILIM < BGREF
FAULT
OFF
OVER
LATCHED
OFF/ON
LATCH
UNDER VOLTAGE
Shutdown Timing Descriptions
CURRENT
RESET
LOCKOUT
A (ON/OFF) - When the ON/OFF is pulled low, the soft-start
capacitor is discharged and all the drivers are disabled.
When the ON/OFF is released without a fault condition, a
soft-start is initiated.
B (OVERCURRENT) - If the output of the converter is over
loaded, i.e., the PKILIM is above the bandgap reference
voltage (BGREF), the soft-start capacitor is discharged very
quickly and all the drivers are turned off. Thereafter, the soft-
start capacitor is charged slowly, and discharged quickly if
the output is overloaded again. The soft-start will remain in
hiccup mode as long as the overload conditions persist.
Once the overload is removed, the soft-start capacitor is
charged up and the converter is then back to normal
operation.
C (LATCHING SHUTDOWN) - The IC is latched off
completely as the LATSD pin is pulled high, and the soft-start
capacitor is reset.
D (ON/OFF) - The latch cannot be reset by the ON/OFF.
9
E (LATCH RESET) - The latch is reset by removing the
VDD. The soft-start capacitor starts to be charged after VDD
increases above the turn-on threshold VDD ON .
F (VDD UVLO) - The IC is turned off when the VDD is below
the turn-off threshold VDD OFF . Hysteresis VDD HYS is
incorporated in the undervoltage lockout (UVLO) circuit.
FN9066.5
January 3, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6551IB | 功能描述:电流型 PWM 控制器 FULL BRIDGE RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6551IB-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC 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:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 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 ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6551IBZ | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC 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) |
| ISL6551IBZ-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC 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) |
| ISL6551IR | 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN 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:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 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 ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
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