Product Summary

The MAX809T is a cost-effective system supervisor circuit designed to monitor VCC in digital systems. It provides a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 10 sec of VCC falling through the reset voltage threshold. Reset is maintained active for a timeout period which is trimmed by the factory after VCC rises above the reset threshold. The MAX809T has an active low RESET output. Both devices are available in SOT-23 packages.

Parametrics

MAX809T absolute maximum ratings: (1)Power Supply Voltage (VCC to GND), VCC: -0.3 to 6.0 V; (2)RESET Output Voltage (CMOS): -0.3 to (VCC + 0.3) V; (3)Input Current, VCC: 20 mA; (4)Output Current, RESET: 20 mA; (5)dV/dt (VCC): 100 V/sec; (6)Thermal Resistance, Junction-to-Air, RθJA: 301℃/W; (7)Operating Junction Temperature Range, TJ: -40 to +105℃; (8)Storage Temperature Range, Tstg: -65 to +150℃; (9)Lead Temperature (Soldering, 10 Seconds) Tsol: +260℃; (10)ESD Protection: 2000V; (11)Latchup Current Maximum Rating: 200mA.

Features

MAX809T features: (1)Precision VCC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0V Supplies; (2)Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps; (3)Four Guaranteed Minimum Power-On Reset Pulse Width Available (1 ms, 20 ms, 100 ms, and 140 ms); (4)RESET Output Guaranteed to VCC = 1.0 V; (5)Low Supply Current; (6)Compatible with Hot Plug Applications; (7)VCC Transient Immunity; (8)No External Components; (9)Wide Operating Temperature: -40 to 10℃; (10)Pb-Free Packages are Available.

Diagrams

MAX809T typical applicatin diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX809TTRG
MAX809TTRG

ON Semiconductor

Supervisory Circuits 3.08V uP Reset

Data Sheet

0-1: $0.27
1-25: $0.23
25-100: $0.16
100-500: $0.13
MAX809TTR
MAX809TTR

ON Semiconductor

Supervisory Circuits 3.08V uP Reset

Data Sheet

Negotiable 
MAX809TEXR-T
MAX809TEXR-T

Maxim Integrated Products

Supervisory Circuits

Data Sheet

Negotiable 
MAX809TEUR+T10
MAX809TEUR+T10

Maxim Integrated Products

Supervisory Circuits 3-Pin MPU Supervisor

Data Sheet

0-6780: $0.73
6780-10000: $0.73
MAX809T
MAX809T

Other


Data Sheet

Negotiable 
MAX809TEXR+T10
MAX809TEXR+T10

Maxim Integrated Products

Supervisory Circuits 3-Pin MPU Supervisor

Data Sheet

0-6250: $0.82
6250-10000: $0.82
MAX809TEXR+T
MAX809TEXR+T

Maxim Integrated Products

Supervisory Circuits 3-Pin MPU Supervisor

Data Sheet

0-1: $1.42
1-25: $1.07
25-50: $1.01
50-100: $0.94
MAX809TEUR-T10
MAX809TEUR-T10

Maxim Integrated Products

Supervisory Circuits

Data Sheet

Negotiable