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參數(shù)資料
| 型號： | BD9251FV-E2 |
| 廠商： | Rohm Semiconductor |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PREAMP HBD PIR SENSOR 14-SSOP |
| 標(biāo)準包裝： | 1 |
| 類型： | 前置放大器 |
| 輸入類型： | 電壓 |
| 輸出類型： | 電壓 |
| 電流 - 電源： | 300µA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-LSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-SSOP |
| 包裝： | 標(biāo)準包裝 |
| 其它名稱： | BD9251FV-E2DKR |
Technical Note
7/8
BD9251FV
www.rohm.com
2011.10 - Rev.A
2011 ROHM Co., Ltd. All rights reserved.
●
Notes for use
(1) Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may
result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when
such damage is suffered. A physical safety measure such as a fuse should be implemented when use of the IC in a
special mode where the absolute maximum ratings may be exceeded is anticipated.
(2) GND potential
Ensure a minimum GND pin potential in all operating conditions.
(3) Short circuit mode between terminals and wrong mounting
In order to mount the IC on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous
mounting can destroy the IC. Furthermore, if a short circuit occurs due to foreign matters entering between terminals or
between the terminal and the power supply or the GND terminal, the IC can destroy.
(4) Actions in strong magnetic field
Use caution when using the IC in the presence of a strong magnetic field as doing so may cause the IC to malfunction.
(5) 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.
(6) About warm-up time
Operation depends on a power-supply voltage and an external constant for time until stabilizing. Please confirm
warm-up time enough when you use it.
(7) PCB design considerations
To reduce the noise from OUTPUT to INPUT , COMP_IN(11pin) and D_OUT(12pin) and T_OUT(13pin) lines away
from Pyro Sensor and A1P_IN(4pin).
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