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BD99A41F-E2 Dataheets PDF



Part Number BD99A41F-E2
Manufacturers Rohm
Logo Rohm
Description Voltage Detector
Datasheet BD99A41F-E2 DatasheetBD99A41F-E2 Datasheet (PDF)

Datasheet Voltage Detectors Voltage Detector ICs with Watchdog Timer BD37Axx Series BD87Axx Series BD99A41F General Description The BD37A19FVM, BD37A41FVM, BD87A28FVM, BD87A29FVM, BD87A34FVM, BD87A41FVM and BD99A41F are watchdog timer reset ICs. It delivers a high precision detection voltage of ±1.5% and a super-low current consumption of 5 µA (Typ). It can be used in a wide range of electronic devices to monitor power supply voltages and in system operation to prevent runaway operation. Feat.

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Datasheet Voltage Detectors Voltage Detector ICs with Watchdog Timer BD37Axx Series BD87Axx Series BD99A41F General Description The BD37A19FVM, BD37A41FVM, BD87A28FVM, BD87A29FVM, BD87A34FVM, BD87A41FVM and BD99A41F are watchdog timer reset ICs. It delivers a high precision detection voltage of ±1.5% and a super-low current consumption of 5 µA (Typ). It can be used in a wide range of electronic devices to monitor power supply voltages and in system operation to prevent runaway operation. Features  Built-in Watchdog Timer  Reset delay time can be set with the CT pin's external capacitance  Watchdog timer monitor time and reset time can be set with the CTW pin's external capacitance.  Output Circuit Type: N-Channel Open Drain Key Specifications  RESET Power Supply Voltage Range: 1.0V to 10V  WDT Power Supply Voltage Range: 2.5V to 10V  High Precision Detection Voltage: (Ta = 25°C) ±1.5% (Ta = −40°C to 105°C) ±2.5%  Super-Low Current Consumption: 5μA(Typ)  Operating Temperature Range: -40°C to +105°C Packages  MSOP8 W (Typ) x D (Typ) x H (Max) 2.90mm x 4.00mm x 0.90mm Applications All devices using microcontrollers or DSP, including vehicle equipment, displays, servers, DVD players, and telephone systems  SOP8 5.00mm x 6.20mm x 1.71mm Ordering Information B D3 7 A 1 9 F VM - TR Part Number 37A:WDT H Active 87A:WDT L Active 99A:WDT H Active Detection Voltage Package 19:1.9V 28:2.8V 29:2.9V 34:3.4V 41:4.1V FVM : MSOP8 F : SOP8 Packaging and forming specification TR: Embossed tape and reel E2: Embossed tape and reel Lineup Detection voltage (Typ) 1.9V 4.1V 2.8V 2.9V 3.4V 4.1V 4.1V INH logic H: Active H: Active L: Active L: Active L: Active L: Active H: Active Package MSOP8 Reel of 3000 MSOP8 Reel of 3000 MSOP8 Reel of 3000 MSOP8 Reel of 3000 MSOP8 Reel of 3000 MSOP8 Reel of 3000 SOP8 Reel of 2500 Orderable Part Number BD37A19FVM-TR BD37A41FVM-TR BD87A28FVM-TR BD87A29FVM-TR BD87A34FVM-TR BD87A41FVM-TR BD99A41F-E2 ○Product structure:Silicon monolithic integrated circuit .www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 ○This product has not designed protection against radioactive rays 1/15 TSZ02201-0G1G0AN00130-1-2 05.Sep.2014 Rev.003 BD37Axx Series BD87Axx Series BD99A41F Pin Configurations MSOP8 (TOP VIEW) 8765 SOP8 (TOP VIEW) 8765 Datasheet 1234 1234 Figure 1. Pin Configurations Pin Descriptions No. Pin name BD37AxxFVM Function 1 CLK Clock input from microcontroller 2 CT Reset delay time setting capacitor connection pin 3 CTW WDT time setting capacitor connection pin No. Pin name BD87AxxFVM / BD99A41F Function 1 CTW WDT time setting capacitor connection pin 2 CT Reset delay time setting capacitor connection pin 3 CLK Clock input from microcontroller 4 VDD Power supply pin 4 GND GND pin 5 N.C. NC pin 6 GND GND pin 7 INH WDT ON/OFF setting pin INH=H/L:WDT=ON/OFF 8 RESET Reset output pin 5 VDD Power supply pin WDT ON/OFF setting pin 6 INH IN.


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