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TLC555-Q1图片
 产品型号:TLC555-Q1
 库存:2000
 PDF下载:
 样片:申请
 订货:订购
 详细介绍

TLC555-Q1_汽车类 LinCMOS 定时器

TLC555-Q1

The TLC555 is a monolithic timing circuit fabricated using the TI LinCMOS process. The timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2?MHz. Because of its high input impedance, this device uses smaller timing capacitors than those used by the NE555. As a result, more accurate time delays and oscillations are possible. Power consumption is low across the full range of power-supply voltage.

Like the NE555, the TLC555 has a trigger level equal to approximately one-third of the supply voltage and a threshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal (CONT). When the trigger input (TRIG) falling below the trigger level sets the flip-flop, and the output goes high. Having TRIG above the trigger level and the threshold input (THRES) above the threshold level resets the flip-flop, and the output is low. The reset input (RESET) can override all other inputs, and a possible use is to initiate a new timing cycle. RESET going low resets the flip-flop, and the output is low. Whenever the output is low, a low-impedance path exists between the discharge terminal (DISCH) and GND. Tie all unused inputs to an appropriate logic level to prevent false triggering.

The advantage of the TLC555-Q1 is that it exhibits greatly reduced supply-current spikes during output transitions. Although the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA, the main reason the TLC555-Q1 is able to have low current spikes is due to its edge rates. This minimizes the need for the large decoupling capacitors required by the NE555.

The TLC555 is characterized for operation over the full automotive temperature range of –40°C to 125°C.

产品特性
  • Qualified for Automotive Applications
  • Very Low Power Consumption
    • 1 mW Typ at VDD = 5 V
  • 1 mW Typ at VDD = 5 V
  • Capable of Operation in Astable Mode
  • CMOS Output Capable of Swinging Rail to Rail
  • High Output-Current Capability
    • Sink 100 mA Typ
    • Source 10 mA Typ
  • Sink 100 mA Typ
  • Source 10 mA Typ
  • Output Fully Compatible With CMOS, TTL, and MOS
  • Low Supply Current Reduces Spikes During Output Transitions
  • Single-Supply Operation From 2 V to 15 V
  • Functionally Interchangeable With the NE555; Has Same Pinout
参数parametrics
参数 TLC555-Q1 NE555 TLC555
Frequency (Max) (MHz) 2.1 0.1 2.1
VCC (Min) (V) 2 4.5 2
VCC (Max) (V) 15 16 15
Iq (Typ) (uA) 170 2000 250
Rating Automotive Catalog Military
Pin/Package 8SOIC 8PDIP 8SO 8SOIC 8TSSOP 14TSSOP 8PDIP 8SO 8SOIC
Operating Temperature Range (C) -40 to 125 0 to 70 -40 to 125 -40 to 85 0 to 70
Approx. Price (US$) 0.33 | 1ku 0.07 | 1ku  
数据表?(1)
标题 类型 大小 (KB) 日期
TLC555-Q1 PDF 209 2012年 11月 9日
订购型号Ordering
型号 状态 温度 (oC) 价格(美元) | Quantity 封装 | 引脚 器件标记 封装数量 | 载体
TLC555QDRQ1 ACTIVE -40 to 125 0.33 | 1ku SOIC?(D) | 8 TL555Q 2500 | LARGE T&R

这里所列出的美国报价单仅供预算参考,指美元报价(规定订量的每片美元,美国离岸价),如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。对于特殊批量报价,请与君硅科技 联络。对于评估板和套件的报价是指一个单位价格。

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