LTC2995
PIN FUNCTIONS
resistor between V
and the load to ensure stability.
VT±: Temperature Threshold 1. When V
crosses the
PTAT
PTAT
V
is pulled low when the supply voltage goes below
voltage on VT1 with a polarity set by the PS pin, TO1 is
PTAT
the under voltage lockout threshold.
pulled low. Tie VT1 to GND if unused.
V
: Voltage Reference Output. V
provides a 1.8V
VTꢀ: Temperature Threshold 2. When V
crosses the
REF
REF
PTAT
reference voltage. V
can drive up to 200μA of load
voltage on VT2 with a polarity set by the PS pin, TO2 is
REF
current and up to 1000pF of capacitive load. For larger
load capacitances insert 1kΩ between V
to ensure stability. Leave V
pulled low. Tie VT2 to V if unused.
CC
and the load
REF
open if unused.
REF
BLOCK DIAGRAM
9
16
V
CC
TMR
V
CC
400k
VH1
20
–
CH1
UV
15
UV PULSE
GENERATOR
+
–
CL1
OSCILLATOR
VL1
VH2
+
2V
V
+
–
1
2
UVLO
–
V
CC
CH2
CC
400k
OV
+
14
–
+
CL2
OV PULSE
GENERATOR
200kΩ
VL2
3
+
–
1.2V
V
1.8V
REF
11
1.3MΩ
200k
0.5V
500k
V
CC
400k
400k
TO2
–
VT2
CT2
13
4
TO1/TO2
PULSE
GENERATOR
+
UVLO
V
CC
400k
TO1
–
+
CT1
12
VT1
5
8
3 STATE
DECODE
T TO V
CONVERTER
V
PTAT
1
3 STATE
DECODE
–
+
DS
D
D
PS
19
GND
18
7
6
17
2995 BD
2995f
8
Linear Systems [ Linear Systems ]
