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参数资料
| 型号： | T2117-3ASY |
| 厂商： | ATMEL CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDIP8 |
| 封装： | LEAD FREE, DIP-8 |
| 文件页数： | 10/16页 |
| 文件大小： | 256K |
| 代理商： | T2117-3ASY |
3
4768B–INDCO–10/05
T2117
3.
General Description
The integrated circuit T2117 is a triac controller for zero-crossing mode. It is designed to control
power in switching resistive loads of mains supplies.
Information regarding synchronous supply is provided at pin 8 via resistor R
Sync. To avoid a DC
load on the mains, the full-wave logic guarantees that complete mains cycles are used for load
switching.
A fire pulse is released when the inverting input of the comparator is negative (pin 4) with
respect to the non-inverting input (pin 3) and internal reference voltage. A ramp generator with
freely selectable duration can be performed by capacitor C
2 at pin 2. The ramp function is used
for open-loop control (Figure 3-2), but also for applications with proportional band regulation
(Figure 10-3 on page 10). Ramp voltage available at capacitor C
2 is decoupled across the emit-
ter follower at pin 1. To maintain the lamp flicker specification, the ramp duration is adjusted
according to the controlling load. One can use internal reference voltage for simple applications.
In that case, pin 3 is inactive and connected to pin 7 (GND), see Figure 10-5 on page 12.
Figure 3-1.
Pin 1 Internal Network
Figure 3-2.
Threshold Voltage of the Ramp at V
S = -8.8 V
Ramp
control
1
C
2
T2117
-V
S
R
4
V
1
-1.6 V
-7.6 V
T
t
Final voltage
Initial voltage
V
max
V
min
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相关代理商/技术参数 |
参数描述 |
|---|---|
| T2117-TAQ | 功能描述:IC SWITCH 0-VOLT ADJ RAMP 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6 |
| T2117-TAQY | 功能描述:电源开关 IC - 配电 Zero Cross Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| T2117-TAS | 功能描述:IC SWITCH 0-VOLT ADJ RAMP 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源分配开关 系列:- 特色产品:XRP252 Switches 标准包装:1 系列:- 类型:高端开关 输出数:2 Rds（开）:140 毫欧 内部开关:是 电流限制:1.15A 输入电压:1.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN（3x3） 包装:Digi-Reel® 其它名称:1016-1691-6 |
| T2117-TASY | 功能描述:电源开关 IC - 配电 Zero Cross Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| T-2118-SP | 制造商:Molex 功能描述: |
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