GS6332 and GS6333
Vishay
formerly General Semiconductor
3 Pin, Low-Power,
碌P
Reset Circuits
Pin Configuration
SOT-23 (Top View)
Description
鈥?The GS6333 and GS6332 are system supervisor circuits
designed to monitor V
CC
in digital systems and provide
a reset signal to the host processor when necessary. No
external components are required.
GND
1
3
V
cc
Reset/
Reset
2
鈥?When the processor power supply voltage drops below
the reset threshold, the reset output is driven active, in
less than 40碌s (T
D1
). Reset is maintained active for a
time period (T
D2
), after the V
cc
rises above the threshold
voltage.
鈥?To prevent jitter, the reset threshold voltage has a built-in
hysteresis of 0.4% of V
TH
.
Fig. 1 鈥?Typical Application Diagram
鈥?The GS6333 has an active-low reset output, while the
GS6332 has an active-high reset output. Both devices
have push/pull output drives.
鈥?The reset signal is guaranteed valid, down to V
cc
= 1.0V.
V
CC
V
CC
V
CC
GS6332
GS6333
RESET
(RESET)
GND
RESET
INPUT
碌P
鈥?Low supply current of 3碌A(chǔ) makes these devices well suit-
ed for battery powered applications. They are designed
to reject fast transients from causing false resets.
鈥?Both devices are available in a space-saving SOT-23
package.
GND
Features
鈥?Tight reset voltage tolerances 鹵 1.8%
鈥?Low supply current: < 3碌A(chǔ)
鈥?Precision monitoring of 1.8V and 2.5V
powersupply voltages
鈥?Other threshold voltage options available from 1.5V to
2.5V in approximately 100mV increments
鈥?Three reset active time-out period options:
typical 1.5mS, 30mS, 150mS
鈥?Reset output guaranteed down to 1.0V
鈥?V
cc
transient immunity
鈥?No external components
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Computers
Critical
碌P/碌C
power monitoring
Battery powered equipment
Automotive electronics
Document Number 74810
22-May-02
www.vishay.com
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