Voltage Detector
Datasheet
Voltage Detectors
Voltage Detector ICs with Watchdog Timer
BD37Axx Series BD87Axx Series BD99A41F
General D...
Description
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 form...
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