LTC2938/LTC2939
8
293839ff
BLOCK DIAGRAM
–
+
4
4
RESISTIVE
DIVIDERS
V5
RST
UV
WDFAIL
6μA
V2
V6
CRT
WDFAIL
0.5V LTC2939
V4
V3
V2
VREF
BUFFER
V1
VPG
V
CC
V
CC
V1
V2
WATCHDOG
TIMER
TRANSITION
DETECT
BANDGAP
REFERENCE
POWER
DETECT
ADJUSTABLE
RESET PULSE
GENERATOR
293839 BD
–
+
–
+
GND
WDI
CWT
WDO
6μA
22μA
2μA
V2
V
CC
22μA
2μA
4
A/D
