DS1833-5+ Dallas Semiconductor, DS1833-5+ Datasheet - Page 5

• Manufacturer Part Number: DS1833-5+
• Description: ECONO RESET-ACTIVE HI-TO92
• Manufacturer: Dallas Semiconductor
• Type: Monitorr

Specifications of DS1833-5+

• Current, Output: 8 mA
• Current, Supply: 1.5 mA
• Package Type: TO-92
• Temperature, Operating, Range: -40 to +85 °C
• Time, Fall: 300 μs
• Voltage, Output, Low: 0.4 V
• Voltage, Supply: 5 V
• Lead Free Status / Rohs Status: RoHS Compliant part

FEATURES
§ Automatically restarts microprocessor after
§ Maintains active-high reset for 350 ms after
§ Accurate 5%, 10% or 15% microprocessor 5V
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
§ Low-cost TO-92 package or surface mount
§ Internal 5k pull-up resistor
§ Operating temperature of -40°C to +85°C
DESCRIPTION
The DS1833 EconoReset uses a precision temperature compensated reference and comparator circuit to
monitor the status of the power supply (V
power fail signal is generated which forces reset to the active (high) state. When V
tolerance condition, the reset signal is kept in the active state for approximately 350 ms to allow the
power supply and processor to stabilize.
OPERATION - POWER MONITOR
The DS1833 provides the functions of detecting out-of-tolerance power supply conditions and warning a
processor-based system of impending power failure. When V
defined by the tolerance of the part selected, the RST signal is asserted. On power-up, RST is kept active
for approximately 350 ms after the power supply has reached the selected tolerance. This allows the
power supply and microprocessor to stabilize before RST is released.
power failure
V
power supply monitoring
reference and voltage sensor
SOT-223 package
CC
returns to an in-tolerance condition
CC
). When an out-of-tolerance condition is detected, an internal
1 of 5
PIN ASSIGNMENT
PIN DESCRIPTION
PIN 1
PIN 2
PIN 3
PIN 4
TO-92 PACKAGE
Drawings Section
BOTTOM VIEW
On Website
See Mech.
DALLAS
1 2 3
1 2 3
DS1833
Econo
Reset
CC
Ground
Reset
V
Ground (SOT-223 only)
is detected as out-of-tolerance, as
CC
5V EconoReset
SOT-23 PACKAGE
Drawings Section
2
TOP VIEW
On Website
CC
See Mech.
1
4
returns to an in-
3
DS1833