参数资料
| 型号： | LTC4366HDDB-2#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | SURGE STOPPER SMD |
| 标准包装： | 500 |
| 电压 - 箝位： | 可调式 |
| 技术： | 混合技术 |
| 电路数： | 1 |
| 应用： | 自动 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN（3x2） |
| 包装： | 带卷 (TR) |
LTC4366-1/LTC4366-2
PIN FUNCTIONS
BASE: Base Driver Output for External PNP Shunt Regula-
tor. This pin is connected to the anode of an internal 6.2V
Zener with the cathode tied to OUT. In cases where lower
Zener (Z3) clamp current is desired but a large V SS resis-
tor is prohibited, connect an external PNP base to this pin
(PNP collector is grounded, emitter is tied to V SS ). Tie this
pin to V SS if unused.
Exposed Pad: The exposed pad may be left open or con-
nected to V SS .
FB: Overvoltage Regulation Amplifier Feedback Input.
Connect this pin to an external resistive divider from OUT
to ground. The overvoltage regulation amplifier controls
the gate of the external N-channel MOSFET to regulate
the FB pin voltage at 1.23V below OUT. The overvoltage
amplifier will activate a 200mA pull-down on the GATE pin
during a fast overvoltage event.
GATE: Gate Drive for External N-Channel MOSFET. Dur-
ing start-up an internal 7.5μA current source charges the
gate of the external N-channel MOSFET from the V DD pin.
Once the OUT voltage is above V SS by 4.75V, the charge
pump will finish charging the GATE to 12V above OUT.
During a fast overvoltage event, a 200mA pull-down cur-
rent source between GATE and OUT is activated, followed
by regulation of the GATE pin voltage by the overvoltage
regulation amplifier.
OUT: Charge Pump and Overvoltage Regulation Amplifier
Supply Voltage. Supply input for floating circuitry pow-
ered from the MOSFET source. Once the OUT voltage is
4.75V (UVLO2) above V SS , the charge pump will turn on
and draw power from this pin. When OUT exceeds 2.55V
(UVLO1) it is used as a power supply and reference input
for overvoltage regulation amplifier. This pin is clamped at
5.7V and requires a 0.22μF or greater bypass to the V SS pin.
SD : Shutdown Comparator Input. Tie to V DD if unused.
Connect pin to a limited current pull down created by adding
a resistor in series with an open-drain or open-collector
pull-down transistor. Activating the external pull down
overcomes the internal 1.6μA pull-up current source and
allows the SD pin to cross the shutdown threshold. This
threshold is defined as 1.5V below V DD with a 280mV
hysteresis. To prevent false triggers this pin must stay
below the threshold for 700μs to activate the shutdown
state. The shutdown state lowers the total quiescent cur-
rent (I VDD plus I OUT ) below 20μA. This quiescent current
does not include shunt current in the V DD , OUT and BASE
regulators. After a fault on the LTC4366, putting the part
in shutdown will clear the fault and allow operation to
resume. Clearing the fault during the 9 second cool-down
period will shorten the time-out for the LTC4366-2 (auto-
retry) version.
TIMER: Timer Input. Leave this pin open for a 1μs overvolt-
age regulation period before fault off. Connect a capacitor
between this pin and V SS to set a 278ms/μF duration for
overvoltage regulation before the switch is turned off.
The LTC4366-2 version will restart after a nine second
cool-down period.
V DD : Start-Up Supply. Supply input for 7.5μA start-up cur-
rent source that charges the gate of the external N-channel
MOSFET. Also provides supply for timer and logic circuits
active when the external MOSFET is off. This pin is clamped
at 12V above V SS . Do not bypass this pin with a capacitor.
V SS : Device Return and Substrate. The capacitors on the
TIMER and OUT pins should be returned to this pin.
8
For more information www.linear.com/LTC4366
436612fd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4366HTS8-1#TRMPBF | 功能描述:IC SURGE STOPPER HV TSOT-23-8 RoHS:是 类别:过电压，电流，温度装置 >> 电涌抑制 IC 系列:- 产品培训模块:LT4356 Surge Stopper 产品目录绘图:LT4356 Output Graph LT4356 Series 10-MSOP 标准包装:2,500 系列:- 电压 - 工作:4 ~ 80V 电压 - 箝位:27V，可调 技术:混合技术 功率（瓦特）:- 电路数:1 应用:自动 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:带卷 (TR) 配用:DC1018B-C-ND - DEMO BOARD FOR LT4356-3DC1018B-B-ND - DEMO BOARD FOR LT4356-2DC1018B-A-ND - DEMO BOARD FOR LT4356-1 |
| LTC4366HTS8-1#TRPBF | 功能描述:IC SURGE STOPPER HV TSOT-23-8 RoHS:是 类别:过电压，电流，温度装置 >> 电涌抑制 IC 系列:- 产品培训模块:LT4356 Surge Stopper 产品目录绘图:LT4356 Output Graph LT4356 Series 10-MSOP 标准包装:2,500 系列:- 电压 - 工作:4 ~ 80V 电压 - 箝位:27V，可调 技术:混合技术 功率（瓦特）:- 电路数:1 应用:自动 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:带卷 (TR) 配用:DC1018B-C-ND - DEMO BOARD FOR LT4356-3DC1018B-B-ND - DEMO BOARD FOR LT4356-2DC1018B-A-ND - DEMO BOARD FOR LT4356-1 |
| LTC4366HTS8-2#PBF | 制造商:Linear Technology 功能描述:HIGH VOLTAGE SURGE STOPPER 4. 制造商:Linear Technology 功能描述:HIGH VOLTAGE SURGE STOPPER, 4.5-12.5V, TSOT-23-8; Controller Applications:Automotive, Avionic & Industrial Surge Protection, High Voltage DC Distribution; Internal Switch:No; Supply Voltage Min:4.5V; Supply Voltage Max:12.5V ;RoHS Compliant: Yes |
| LTC4366HTS8-2#TRMPBF | 功能描述:IC SURGE STOPPER HV TSOT-23-8 RoHS:是 类别:过电压，电流，温度装置 >> 电涌抑制 IC 系列:- 产品培训模块:LT4356 Surge Stopper 产品目录绘图:LT4356 Output Graph LT4356 Series 10-MSOP 标准包装:2,500 系列:- 电压 - 工作:4 ~ 80V 电压 - 箝位:27V，可调 技术:混合技术 功率（瓦特）:- 电路数:1 应用:自动 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:带卷 (TR) 配用:DC1018B-C-ND - DEMO BOARD FOR LT4356-3DC1018B-B-ND - DEMO BOARD FOR LT4356-2DC1018B-A-ND - DEMO BOARD FOR LT4356-1 |
| LTC4366HTS8-2#TRPBF | 功能描述:IC SURGE STOPPER HV TSOT-23-8 RoHS:是 类别:过电压，电流，温度装置 >> 电涌抑制 IC 系列:- 产品培训模块:LT4356 Surge Stopper 产品目录绘图:LT4356 Output Graph LT4356 Series 10-MSOP 标准包装:2,500 系列:- 电压 - 工作:4 ~ 80V 电压 - 箝位:27V，可调 技术:混合技术 功率（瓦特）:- 电路数:1 应用:自动 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:带卷 (TR) 配用:DC1018B-C-ND - DEMO BOARD FOR LT4356-3DC1018B-B-ND - DEMO BOARD FOR LT4356-2DC1018B-A-ND - DEMO BOARD FOR LT4356-1 |
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