Datasheet

LTC2923
6
2923fa
UU
W
FU CTIO AL BLOCK DIAGRA
RAMPBUF
FB2
TRACK2
PIN NUMBERS IN PARENTHESES CORRESPOND
TO THE 10-LEAD MSOP PACKAGE
GND
0.8V
V
CC
2923 FBD
1×
+
–
FB1
RAMP
GATE
(9)
TRACK1
0.8V
V
CC
+
–
ON
V
CC
V
CC
0.1V
V
CC
2.6V
V
CC
V
CC
– RAMP > 200mV
V
CC
< 2.6V
RAMP < 100mV
RAMP > V
CC
SHORT-CIRCUIT
FAULT LATCH
GATE
GATE > RAMP + 4.9V
+
–
+
–
+
–
+
–
+
–
10µA
ONSIG
10µA
CHARGE
PUMP
RQ
Q
0.4V
1.2V
S
4.9V
0.2V
6
4
3
5
9
10
2
STATUS
SDO
1
8
7
ONSIG
11
(10)
12