数据搜索系统,热门电子元器件搜索 |
|
LM4040-EP 数据表(PDF) 5 Page - Texas Instruments |
|
LM4040-EP 数据表(HTML) 5 Page - Texas Instruments |
5 / 12 page 1-Hz Rate VZ LM4040 RS VIN R S + V S * VZ (I L ) IZ) LM4040 IZ + IL IL IZ VS VZ RS LM4040-EP www.ti.com SLOS746A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 APPLICATION INFORMATION Start-Up Characteristics Figure 7. Test Circuit Output Capacitor The LM4040 does not require an output capacitor across cathode and anode for stability. However, if an output bypass capacitor is desired, the LM4040 is designed to be stable with all capacitive loads. SOT-23 Connections There is a parasitic Schottky diode connected between pins 2 and 3 of the SOT-23 packaged device. Thus, pin 3 of the SOT-23 package must be left floating or connected to pin 2. Cathode and Load Currents In a typical shunt-regulator configuration (see Figure 8), an external resistor, RS, is connected between the supply and the cathode of the LM4040. RS must be set properly, as it sets the total current available to supply the load (IL) and bias the LM4040 (IZ). In all cases, IZ must stay within a specified range for proper operation of the reference. Taking into consideration one extreme in the variation of the load and supply voltage (maximum IL and minimum VS), RS must be small enough to supply the minimum IZ required for operation of the regulator, as given by data-sheet parameters. At the other extreme, maximum VS and minimum IL, RS must be large enough to limit IZ to less than its maximum-rated value of 15 mA. RS is calculated according to Equation 1: (1) Figure 8. Shunt Regulator Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 5 |
类似零件编号 - LM4040-EP |
|
类似说明 - LM4040-EP |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |