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Voltage Detector with Watchdog Timer - BD87A28FVM

The BD37A19 / 41FVM, BD87A28 / 29 / 34 / 41FVM, BD99A41F is a watchdog timer reset IC. It delivers a high detection voltage precision of ±1.5% and a super-low current consumption of 5µA (Typ.). It can be used in a wide range of electronic devices to monitor power supply voltages and system operation to prevent runaway operation.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BD87A28FVM-TR
Status | Active
Package | MSOP8
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Voltage Detection[V]

2.8

VDET Precision [%]

±1.5

Reset Active Voltage Range [V]

1.0 to 10

Output Types

Open drain

Reset Delay Timer

Adjustable Delay

Reset Active State

Low

Manual Reset

No

Watchdog Timer

Yes

SENSE Pin

No

Auto Motive

Yes

Circuit Current (ON) [µA]

5

Hysteresis Voltage [V]

VDET x 0.045

"L" Output Current (LowVol) [mA]

0.7

Delay Circuit Resistance [MΩ]

10.0

WDT Active Voltage Range [V]

2.5 to 10

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

105

Features:

・High detection voltage precision : ±1.5%, ±2.5% (Ta = −40℃ to 105℃)
・Super-low current consumption : 5µA (Typ.)
・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