LTC2960IDC-1-TRMPBF View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2960IDC-1-TRMPBF' PDF : 16 Pages View PDF
LTC2960
PIN FUNCTIONS
ADJ: Reset Threshold Adjustment Input. Tie to resistive
divider to configure desired reset threshold.
DVCC: (LTC2960-3/LTC2960-4) Logic Supply Input. Used
for setting the logic swing of the RST and OUT outputs.
Useful for interfacing with logic voltages different from
VCC. Bypass DVCC with 0.1μF to GND. Grounding DVCC
allows OUT and RST to act as open drain outputs.
Exposed Pad (DFN Only): Exposed pad may be left floating
or connected to device ground.
GND: Device ground.
IN–: (LTC2960-2/LTC2960-4) IN– Threshold Adjustment
Input. Tie to resistive divider to configure required thresh-
old. Tie to GND if unused.
IN+: (LTC2960-1/LTC2960-3) IN+ Threshold Adjustment
Input. Tie to resistive divider to configure required thresh-
old. Tie to GND if unused.
MR: Manual Reset Input. Attach a push-button switch or
logic signal 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 a reset timeout period
has expired. Leave open if unused.
OUT: (LTC2960-1/LTC2960-3) Pulls low when monitored
voltage falls below the IN+ threshold. Released when
the IN+ voltage rises above its threshold by 5%. For the
LTC2960-3, OUT is driven by DVCC when logic high. OUT
is open drain if DVCC is grounded. Leave open if unused.
(LTC2960-2/LTC2960-4) OUT pulls low when the monitored
voltage rises above the IN– threshold. Released when
monitored voltage falls below IN– threshold by 5%. For the
LTC2960-4, OUT is driven to DVCC for a logic high. OUT
is open drain if DVCC is grounded. Leave open if unused.
RST: Reset Output. Pulls low when monitored voltage falls
below the reset (ADJ) threshold. RST is released after
monitored voltage exceeds the reset threshold plus 2.5%
hysteresis and after reset timeout period has expired. For
the LTC2960-3/LTC2960-4, RST is driven to DVCC for a
logic high. RST is open drain if DVCC is grounded. Leave
open if unused.
RT: (LTC2960-1/LTC2960-2) Reset Timeout Period Se-
lection Input. Tie to GND for 15ms delay. Tie to VCC for
200ms delay.
VCC: Power Supply Input. When VCC falls below the falling
UVLO threshold, the outputs are pulled low. If VCC falls
below 1.2V the logic state of the outputs cannot be guar-
anteed. Bypass VCC with 0.1μF to GND. Use appropriate
voltage rating for bypass capacitor.
2960f
6
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