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| 型号： | ZL2105ALNFT |
| 厂商： | Intersil |
| 文件页数： | 26/36页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 3A 36QFN |
| 标准包装： | 100 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 4.5 V ~ 14 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 200kHz ~ 2MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 36-QFN（6x6） |
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ZL2105
overload condition is imposed on the output. Once the
current limit threshold has been selected (see Section
may determine the desired course of action in response
to the fault condition. The following overcurrent
protection response options are available:
1. Initiate a shutdown and attempt to restart an
infinite number of times with a preset delay period
between attempts.
2. Initiate a shutdown and attempt to restart a preset
number of times with a preset delay period
between attempts.
3. Continue operating for a given delay period,
followed by shutdown if the fault still exists.
4. Continue operating through the fault (this could
result in permanent damage to the power supply).
5. Initiate an immediate shutdown.
The default response from an overcurrent fault is an
immediate shutdown of the device. The device will
continuously check for the presence of the fault
condition, and if the fault condition no longer exists the
device will be re-enabled.
Please refer to Application Note AN2013 for details on
Figure 17. Output Responses to Pre-bias Voltages
If a pre-bias voltage higher than the target voltage
exists after the pre-configured delay period has
expired, the target voltage is set to match the existing
pre-bias voltage and both drivers are enabled with a
PWM duty cycle that would ideally create the pre-bias
voltage. Once the pre-configured soft-start ramp period
has expired, the PG pin will be asserted (assuming the
pre-bias voltage is not higher than the overvoltage
limit). The PWM will then adjust its duty cycle to
match the original target voltage and the output will
ramp down to the pre-configured output voltage.
If a pre-bias voltage higher than the overvoltage limit
exists, the device will not initiate a turn-on sequence
and will declare an overvoltage fault condition to exist.
In this case, the device will respond based on the
output overvoltage fault response method that has been
Protection ,” for response options due to an overvoltage
condition.
6.5 Output Overcurrent Protection
The ZL2105 can protect the power supply from
damage if the output is shorted to ground or if an
26
how to select specific overcurrent fault response
options via I 2 C/SMBus.
6.6 Thermal Overload Protection
The ZL2105 includes an on-chip thermal sensor that
continuously measures the internal temperature of the
die and shuts down the device when the temperature
exceeds the preset limit. The default temperature limit
is set to 125°C in the factory, but the user may set the
limit to a different value if desired. The user may select
one of the following overtemperature protection
response options:
1. Initiate a shutdown and attempt to restart an
infinite number of times with a preset delay period
between attempts.
2. Initiate a shutdown and attempt to restart a preset
number of times with a preset delay period
between attempts.
3. Continue operating for a given delay period,
followed by shutdown if the fault still exists.
FN6851.2
March 30, 2011
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZL2105ALNFT1 | 功能描述:IC REG BUCK SYNC ADJ 3A 36QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
| ZL2105EVK2 | 功能描述:EVAL BOARD 2 ZL2105 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ZL2106 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:6A Digital-DC Synchronous Step-Down DC/DC Converter |
| ZL2106_10 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:6A Digital-DC Synchronous Step-Down DC/DC Converter |
| ZL2106ALBNT | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:6A Digital-DC Synchronous Step-Down DC-DC Converter |
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