LTC693CSW Linear Technology, LTC693CSW Datasheet - Page 8

• Manufacturer Part Number: LTC693CSW
• Description: IC MPU SUPERVISRY CIRCUIT 16SOIC
• Manufacturer: Linear Technology
• Type: Simple Reset/Power-On Resetr

Specifications of LTC693CSW

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active High/Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.4V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC693CS

LTC692/LTC693
WDI: Watchdog Input. WDI is a three level input. Driving
WDI either high or low for longer than the watchdog timeout
period, forces both RESET and WDO low. Floating WDI
disables the watchdog timer. The timer resets itself with
each transition of the watchdog input (see Figure 11).
BLOCK DIAGRAM
PIN FUNCTIONS
8
OSC SEL
OSC IN
V BATT
CE IN
V CC
WDI
PFI
TRANSITION
DETECTOR
GND
1.3V
OSC
–
+
+
–
–
+
C1
C2
C3
M2
RESET PULSE
GENERATOR
WATCHDOG
WDO: Watchdog Logic Output. When the watchdog input
remains either high or low for longer than the watchdog
timeout period, WDO goes low. WDO is set high whenever
there is a transition on the WDI pin, or LOW LINE goes
low. The watchdog timer can be disabled by fl oating WDI
(see Figure 11).
TIMER
CHARGE
PUMP
M1
LTC692/3 • BD
BATT ON
CE OUT
LOW LINE
PFO
RESET
RESET
WDO
V OUT
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