Electronic Components Datasheet Search |
|
BH28MA3WHFV-TR Datasheet(PDF) 8 Page - Rohm |
|
BH28MA3WHFV-TR Datasheet(HTML) 8 Page - Rohm |
8 / 13 page Datasheet Datasheet 8/10 TSZ02201-0RBR0A300170-1-2 © 2012 ROHM Co., Ltd. All rights reserved. 25.Sep.2013 Rev.001 www.rohm.com TSZ22111・15・001 BHxxMA3 series ●Operational Notes 1) Absolute maximum ratings This product is produced with strict quality control, however it may be destroyed if operated beyond its absolute maximum ratings. In addition, it is impossible to predict all destructive situations such as short-circuit modes, open circuit modes, etc. T here f ore, it is i m port a n t to con s ider ci rcui t protection measures, li ke adding a fuse, in case the IC is o perated in a special mo de exceeding the absolu t e maximum ra tings. 2) GND Potential GND potential must be the lowest potential of all pins of the IC at all operating conditions. Ensure that no pins are at a voltage below the ground pin at any time, even during transient condition. 3) Setting of Heat Carry out the heat design that have adequate margin considering Pd of actual working states. 4) Pin Short and Mistake Fitting When mounting the IC on the PCB, pay attention to the orientation of the IC. If there is mistake in the placement, the IC may be burned up. 5) Actions in Strong Magnetic Field Using the IC within a strong magnetic field may cause the IC to malfunction. 6) Mutual impedance Use short and wide wiring tracks for the power supply and ground to keep the mutual impedance as small as possible. Use a capacitor to keep ripple to a minimum. 7) STBY Pin Voltage For standby mode, set STBY voltage below 0.3V. For normal operation, set the pin voltage beyond 1.5V. It is not recommended to set STBY voltage between 0.3V and 1.5V, as it may cause malfunctions. 8) Over Current Protection Circuit Over current and short circuit protection is built-in at the output, and IC destruction is prevented at the time of load short circuit. These protection circuits are effective in the destructive prevention by the sudden accident. Please avoid applications where the over current protection circuit operates continuously. 9) Thermal shutdown This IC also features a thermal shutdown circuit that is designed to turn off the output when the junction temperature of the IC exceeds about 170℃. This feature is intended to protect the IC only in the event of thermal overload and is not designed to guarantee operation or act as an active security device for applications. Therefore, it is not recommended that you design application where TSD will work in normal condition. TSD ON TEMPURATURE(℃) (typ.) HYSTERESIS TEMPURATURE(℃) (typ.) BHxxMA3 series 170 15 10) Noise Pin NOISE pin can drive small current, since it is directly connected to reference voltage circuit. The output voltage may drop when the load of NOISE pin is more than 100nA. If the pin is connected to a capacitor, please use ceramic capacitor for small leak current. Please take note that the output noise is smaller as NOISE pin capacitor is larger, but startup time is longer. 11)Output capacitor To prevent oscillation at output, it is recommended that the IC be operated at the stable region shown in Figure 12. It operates at the capacitance value of more than 1.0 μF. As capacitance is larger, stability becomes more stable and characteristic of output load fluctuation is also improved. |
Similar Part No. - BH28MA3WHFV-TR |
|
Similar Description - BH28MA3WHFV-TR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |