参数资料
| 型号： | NCV8614MNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 12/25页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V/3.3V/ADJ 20DFN |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式和可调式 |
| 输出电压： | 5V，3.3V，可调式 |
| 输入电压： | 7 V ~ 18 V |
| 稳压器数量： | 3 |
| 电流 - 输出： | 100mA，300mA，400mA |
| 电流 - 限制（最小）： | 200mA，400mA，500mA |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFDFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（6x5） |
| 包装： | 带卷 (TR) |
NCV8614
the amount of time it takes the timing capacitor on the delay
pin to charge from a residual voltage of 0 V to the Delay
timing threshold voltage V D of 2 V. The charging current for
this is I D of 5 m A. By using typical IC parameters with a
10 nF capacitor on the Delay Pin, the following time delay
is derived:
t RD = C D * V DU / I D
t RD = 10 nF * (2 V)/ (5 m A) = 4 ms
Other time delays can be obtained by changing the C D
capacitor value. The Delay Time can be reduced by
decreasing the capacitance of C D . Using the formula above,
delay can be reduced as desired. Leaving the Delay Pin open
is not desirable as it can result in unwanted signals being
coupled onto the pin.
VBATT_MON and Warning Flags
The NCV8614 is equipped with High Voltage Detection,
Brown Out Detection, and High Temperature Detection
circuitry. The Overvoltage Shutdown, High Voltage, and
Brown Out Detection circuitry are all run off the
VBATT_MON input. If this functionality is not desired,
grounding of the VBATT_MON pin will turn off the
functions.
The HV_DET and BO_DET signals are in a high
impedance state until the VBATT_MON circuitry reaches it
minimum operating voltage, typically 1.0 V to 2.5 V. At that
point the BO_DET signal will be held low, while the
HV_DET signal will go high. The BO_DET signal will go
high once the VBATT_MON signal reaches the Brown Out
Threshold, typically 7 V to 8 V. The BO_DET signal will
stay high until the VBATT_MON voltage drops below the
Brown Out Threshold. The HV_DET signal will stay high
until the VBATT_MON voltage rises above the HV_DET
threshold, typically 16.2 V to 17.8 V. The HV_DET signal
The NCV8614 is also equipped with a Hot Flag pin which
indicates when the junction temperature is approaching
thermal shutdown. The Hot Flag signal will remain high as
long as the junction temperature is below the Hot flag
threshold, typically 140 ° C to 160 ° C. This pin is intended as
a warning that the junction temperature is approaching the
Thermal Shutdown threshold, which is typically 160 ° C to
180 ° C. The Hot Flag signal will remain low until the
junction temperature drops below the Hot Flag threshold.
The Hot_Flag circuitry does not run off the
VBATT_MON Pin, and can not be disabled by grounding
VBATT_MON.
Each of the three warning circuits utilizes a push ? pull
output stage. The high signal is provided by V PP . V PP is
internally tied to V OUT2 .
Overvoltage Shutdown
The NCV8614 is equipped with overvoltage shutdown
(OVS) functionality. The OVS is designed to turn on when
the VBATT_MON signal crosses 17 V. If the
VBATT_MON pin is tied to ground, the OVS functionality
will be disabled.
When OVS is triggered, LDO1 and LDO2 will both be
shut down. LDO3 is run off a separate input voltage line,
VIN_S3, and will not shutdown in this condition. Once the
OVS condition has passed, LDO1 and LDO2 will both turn
back on.
The VIN ? H line is equipped with a bleed transistor to
prevent a continued OVS condition on the chip once the high
battery condition has subsided. This transistor is needed to
discharge the high voltage from the VIN ? H hold ? up
capacitor. This transistor will only turn on when an OVS is
detected on ? chip, and will turn off as soon as the OVS
condition is no longer detected by the chip.
will reassert high once the HV_DET signal crosses the
HV_DET threshold going low.
http://onsemi.com
12
相关PDF资料 |
PDF描述 |
|---|---|
| NCV86601D50R2G | IC REG LDO 5V .15A 8-SOIC |
| NCV86604BDT50RKG | IC REG LDO 5V .15A DPAK-5 |
| NCV8664DT50RKG | IC REG LDO 5V .15A DPAK |
| NCV8665D50G | IC REG LDO 5V .15A 8-SOIC |
| NCV8668ABD250R2G | IC REG LDO 5V .15A 14SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCV8660 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Very Low Iq LD0 150 mA Regulator with RESET and Delay Time Select |
| NCV86601BD33R2G | 功能描述:低压差稳压器 - LDO Fixed-1mA to 150mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCV86601BD50R2G | 功能描述:低压差稳压器 - LDO VERY LOW IQ LDO W RESET RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCV86601BDT33RKG | 功能描述:IC REG LDO 3.3V .15A DPAK-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:2,000 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 5 V 输入电压:2.5 V ~ 7 V 电压 - 压降（标准）:0.24V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:1.2A 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-261-5，TO-261AB 供应商设备封装:SOT-223-5 包装:带卷 (TR) 其它名称:*LP3964EMPX-ADJLP3964EMPX-ADJLP3964EMPX-ADJ-NDLP3964EMPX-ADJ/NOPBTR |
| NCV86601BDT50RKG | 功能描述:低压差稳压器 - LDO VERY LOW IQ LDO W RESET RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
发布紧急采购，3分钟左右您将得到回复。