LTC2919 データシートの表示（PDF） - Analog Devices
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LTC2919 Datasheet PDF : 20 Pages
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LTC2919
BLOCK DIAGRAM
ADJ1
VCC
SEL
THREE-STATE
DECODE
CONTROL 2
+
CONTROL 1
–
+
EN
–
ADJ2
+
–
+– 500mV
REF
+– 1.000V
VCC
VCC
6.5V
OUT1
ADJUSTABLE
PULSE
GENERATOR
200ms
PULSE
GENERATOR
TMR
THREE-STATE
DECODE
RST
GND
OUT2
SEL
GND
OPEN
VCC
CONTROL 1
H
L
L
CONTROL 2
H
H
L
CONTROL = H = NEGATIVE POLARITY
CONTROL = L = POSITIVE POLARITY
2919 BD
TIMING DIAGRAM
Positive Polarity Input Timing
VADJ
VRT
RST
1V
tPROP
OUT
1V
tPROP
VRT + ΔVRT
tRST
tPROP
8
Negative Polarity Input Timing
VADJ
VRT
RST
1V
tPROP
OUT
1V
tPROP
VRT – ΔVRT
tRST
tPROP
UVLO Timing
NOTES:
1. ΔVRT AND ΔVCC(UVLO) = 0, except in
Comparator Mode
2. IN COMPARATOR MODE, tRST = tPROP.
VCC VCC(UVLO)
tUV
RST
1V
tPROP
OUT
1V
VCC(UVLO) + ΔVCC(UVLO)
tRST
tPROP
2919 TD
For more information www.analog.com
Rev. A
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