LTC2934_15 Datasheet, PDF (12/12 Pages) Linear Technology – Ultra-Low Power Adjustable Supervisor with Power-Fail Output

LTC2934
TYPICAL APPLICATION
Portable Device Battery Monitor
3μA LDO
+
Li-Ion
866k
6.34k
127k
0.1μF
RT
V_CC
IN _LT3009 OUT
100k ^{SHDN GND}
ADJ
ADJ
RST
LTC2934-1
PFI
MR
GND PFO
POWER FAIL FALLING THRESHOLD = 3.148V
RESET FALLING THRESHOLD = 2.998V
1.8V
1.18M
590k
1μF
100k
LOW BATTERY
EARLY WARNING
2934 TA05
RELATED PARTS
PART NUMBER
LTC690
LTC694-3.3
LTC1232
LTC1326
LTC1726
LTC1727
LTC1728
LTC1985
LTC2900
LTC2901
LTC2902
LTC2903
LTC2904/LTC2905/
LTC2906/LTC2907
LTC2908
LTC2909
LTC2910
LTC2912/LTC2913/
LTC2914
LTC2915/LTC2916/
LTC2917/LTC2918
LTC2935
DESCRIPTION
5V Supply Monitor, Watchdog Timer and Battery Backup
3.3V Supply Monitor, Watchdog Timer and Battery Backup
5V Supply Monitor, Watchdog Timer and Pushbutton Reset
Micropower Triple Supply Monitor for 5V/2.5V, 3.3V and ADJ
Micropower Triple Supply Monitor for 2.5V/5V, 3.3V and ADJ
Micropower Triple Supply Monitor with Open-Drain Reset
Micropower Triple Supply Monitor with Open-Drain Reset
Micropower Triple Supply Monitor with Push-Pull Reset Output
Programmable Quad Supply Monitor
Programmable Quad Supply Monitor
Programmable Quad Supply Monitor
Precision Quad Supply Monitor
Three-State Programmable Precision Dual Supply Monitor
Precision Six-Supply Monitor (Four Fixed and Two Adjustable)
Precision Triple/Dual Input UV, OV and Negative Voltage Monitor
Octal Positive/Negative Voltage Monitor
Single/Dual/Quad UV and OV Voltage Monitors
Single Voltage Supervisors with 27 Pin-Selectable Thresholds
Ultralow Power Supervisor with Eight Pin-Selectable Thresholds
COMMENTS
4.65V Threshold
2.9V Threshold
4.37V/4.62V Threshold
4.725V, 3.118V, 1V Threshold (±0.75%) and ADJ
Adjustable Reset and Watchdog Timeouts
Individual Monitor Outputs in MSOP
5-Lead SOT-23 Package
5-Lead SOT-23 Package
Adjustable Reset, 10-Lead MSOP and DFN Packages
Adjustable Reset and Watchdog Timer
Adjustable Reset and Tolerance
6-Lead SOT-23 Package
8-Lead SOT-23 and DFN Packages
8-Lead TSOT-23 and DFN Packages
Shunt Regulated V_CC Pin, Adjustable Threshold and Reset,
8-Lead SOT-23 and DFN Packages
Separate V_CC Pin, Eight Inputs, Up to Two Negative Monitors
Adjustable Reset Timer, 16-Lead SSOP and DFN Packages
Separate V_CC Pin, Adjustable Reset Timer
Manual Reset and Watchdog Functions, 8- and 10-Lead
TSOT-23, MSOP and DFN Packages
500nA Quiescent Current, 2mm × 2mm 8-Lead DFN and
TSOT-23 Packages
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
2934f
LT 0508 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2008