- 制造厂商：TI
- 产品类别：微控制器 (MCU) 和处理器
- 技术类目：微控制器 (MCU) - 基于 Arm 的微控制器
- 功能描述：双路瞬态电压抑制器
- 点击这里打开及下载TCM1050的技术文档资料
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The TCM1030 and TCM1050 dual transient-voltage suppressors are designed specifically for telephone line card protection against lightning and transients (voltage transients) induced by ac lines. One of the TIP terminals (pin 1 or 8) and one of the RING terminals (pin 4 or 5) are connected to the tip and ring circuits of a SLIC (subscriber-line interface circuit). The battery feed connections between the SLIC and the subscriber line are from the remaining TIP (pin1 or 8) and RING (pin 4 or 5) through the TCM1030 or the TCM1050 to the tip and ring lines. Transients are suppressed between tip and ground, and ring and ground.
Positive transients are clamped by diodes D1 and D2. Negative transients that are more negative than VS cause the SCRs, Q1 and Q2, to crowbar. The high holding current of the SCRs prevent dc latchup as the transient subsides.
The TCM1030 and TCM1050 are characterized for operation from -40°C to 85°C.
- Meet or Exceed Bell Standard LSSGR Requirements
- Externally-Controlled Negative Firing Voltage...-90 V Max
- Accurately Controlled, Wide Negative Firing Voltage Range...-5 V to -85 V
- Positive Surge Current (see Note 1): TCM1030 TCM1050 10/1000 16 A 30 A 10/160 25 A 45 A 2/10 35 A 50 A
- Negative Surge Current (see Note 1): TCM1030 TCM1050 10/1000 -16 A -25 A 10/160 -25 A -29 A 2/10 -35 A -36 A
- High Holding Current
- TCM1030...100 mA Min
- TCM1050...150 mA Min
NOTE 1: The notation 10/1000 refers to a waveshape having tr = 10 us and tw = 1000 us ending at 50% of the peak value. The notation 10/160 is tr = 10 us and tw = 160 us. The notation 2/10 is tr = 2 us and tw = 10 us.
- ADC
- 12-bit SAR
TCM1050的完整型号有：TCM1050D、TCM1050DR，以下是这些产品的关键参数及官网采购报价：
TCM1050D，工作温度：PropertyValue，封装：SOIC (D)-8，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TCM1050D的批量USD价格：1.236（1000+）
TCM1050DR，工作温度：PropertyValue，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TCM1050DR的批量USD价格：1.038（1000+）
TCM1050D，工作温度：PropertyValue，封装：SOIC (D)-8，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TCM1050D的批量USD价格：1.236（1000+）
TCM1050DR，工作温度：PropertyValue，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TCM1050DR的批量USD价格：1.038（1000+）
