LTC2934CTS8-2-TRPBF Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC2934CTS8-2-TRPBF Datasheet PDF : 12 Pages
| |||
LTC2934
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Supply Current vs RT
Input Voltage
250
VCC = 3.6V
200
150
100
50
0
0 0.5 1 1.5 2 2.5 3 3.5 4
RT INPUT VOLTAGE (V)
2934 G07
Supply Current vs MR Input Voltage
5
VCC = 3.6V
4
3
2
1
0
0 0.5 1 1.5 2 2.5 3 3.5 4
MR INPUT VOLTAGE (V)
2934 G08
PIN FUNCTIONS
ADJ: Reset Threshold Adjustment Input. Tie to resistive
divider between monitored voltage and GND to configure
desired reset threshold. See the Applications Information
section for details. Tie to VCC if unused.
Exposed Pad (DFN Only): Exposed Pad may be left floating
or connected to device ground.
GND: Device Ground.
MR: Manual Reset Input. Attach a push-button switch
between this input and ground. A logic low on this input
pulls RST low. When the MR input returns to logic high,
RST returns high after the reset timer has expired. Tie to
VCC if unused.
PFI: Power-Fail Threshold Adjustment Input. Tie to
resistive divider between monitored voltage and GND
to configure desired power-fail threshold. See the
Applications Information section for details. Tie to VCC or
GND if unused.
PFO: Power-Fail Output. PFO pulls low when monitored
voltage falls below the power-fail (PFI) threshold. PFO
is released when the PFI voltage rises above the power-
fail threshold by 2.5%. PFO is available with open-drain
(LTC2934-1) or active pull-up (LTC2934-2) outputs. Leave
open if unused.
RST: Reset Output. RST pulls low when monitored volt-
age falls below the reset threshold. RST is released after
monitored voltage exceeds the reset threshold plus 5%
hysteresis and after reset timer has expired. RST is available
with open-drain (LTC2934-1) or active pull-up (LTC2934-2)
outputs. Leave open if unused.
RT: Reset Timeout Selection Input. Tie to GND or VCC for
desired reset timeout. Tie low for 15ms delay or high for
200ms delay.
VCC: Power Supply Input. Bypass VCC with 0.1μF to
GND.
2934f
5
Share Link: 