参数资料
| 型号： | X9520B20I-AT1 |
| 厂商： | Intersil |
| 文件页数： | 18/29页 |
| 文件大小： | 0K |
| 描述： | IC LASR CTRLR 3CHAN 5.5V 20TSSOP |
| 标准包装： | 5,000 |
| 类型： | 激光二极管控制器（光纤） |
| 通道数： | 3 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 1.5mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
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X9520
applying power to V1/VCC). The input voltage is decreased,
and found to trip the associated output level of pin V2RO from a
LOW to a HIGH, when V2 reaches 3.09 V. From this, it can be
calculated that the programming error is 3.09 - 3.0 = 0.09 V.
If the error between the desired and measured V TRIPx is
less than the maximum desired error, then the programming
process may be terminated. If however, the error is greater
than the maximum desired error, then another iteration of the
V TRIPx programming sequence can be performed (using the
calculated error) in order to further increase the accuracy of
the threshold voltage.
If the calculated error is greater than zero, then the V TRIPx
must first be “reset”, and then programmed to the a value equal
to the previously set V TRIPx minus the calculated error. If it is
the case that the error is less than zero, then the V TRIPx must
be programmed to a value equal to the previously set V TRIPx
plus the absolute value of the calculated error.
Continuing the previous example, we see that the calculated
error was 0.09V. Since this is greater than zero, we must first
“reset” the V TRIP2 threshold, then apply a voltage equal to the
last previously programmed voltage, minus the last previously
calculated error. Therefore, we must apply V TRIP2 = 2.91 V to
pin V2 and execute the programming sequence.
Using this process, the desired accuracy for a particular
V TRIPx threshold may be attained using a successive
number of iterations.
V TRIPx Programming
Note: X = 1,2,3.
Let: MDE = Maximum Desired Error
NO
Desired V TRIPx <
present value?
YES
MDE +
Desired Value
MDE –
Acceptable
Error Range
Execute
V TRIPx Reset
Sequence
Set Vx = desired V TRIPx
Error = Actual - Desired
New Vx applied =
Old Vx applied + | Error |
NO
Execute
Set Higher V TRIPx
Sequence
Apply VCC & Voltage
> Desired V TRIPx to Vx
Decrease Vx
Output
switches?
YES
New Vx applied =
Old Vx applied - | Error |
Execute
Reset V TRIPx
Sequence
Error < MDE –
Actual V TRIPx
- Desired V TRIPx
= Error
Error >MDE +
| Error | < | MDE |
DONE
FIGURE 24. V TRIPx SETTING/RESET SEQUENCE (X = 1,2,3)
18
FN8206.2
August 20, 2007
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相关代理商/技术参数 |
参数描述 |
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| X9520B20IB | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR,2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520B20I-B | 制造商:Intersil Corporation 功能描述:TRIPLE DCP POR EEPROM MEMORY 20CSP - Rail/Tube |
| X9520B20I-BT1 | 功能描述:IC LASR CTRLR 3CHAN 5.5V 20TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| X9520CZ6 WAF | 制造商:Intersil Corporation 功能描述: |
| X9520V20IA | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR,2kbit EEPROM Memory, Dual Voltage Monitors |
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