Datasheet

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