Datasheet

LTC3861-1
11
38611fa
For more information www.linear.com/LTC3861-1
FuncTional Diagram
22
ISNS1P
21
ISNS1N
20
231828
ISNS2N
I
AVG
I
LIM2
I
LIM1
20µA
20µA
20µA
10
FREQ
13
PHSMD
12
CLKOUT
11
16
CLKIN
38611 BD
OC1
NOC1
OC2
NOC2
19
ISNS2P
x18.5
x18.5
8
FB2
7
COMP2
9
TRACK/SS2
EA2
REF
REF
2
FB1
32
TRACK/SS1
3
COMP1
EA1
+
+
–
+
+
–
+
–
+
–
5
VSNSN
24
RUN1
100k
V
CC
1.5µA
1.5µA
V
CC
17
RUN2
6
VSNSP
4
VSNSOUT
DA
S
V
FB1
I
LIM1
V
FB2
I
LIM2
S
MASTER/SLAVE/
INDEPENDENT
SD/UVLO
27
PGOOD1
V
FB1
V
FB2
14
PGOOD2
RAMP/SLOPE/
FEEDFORWARD
PGOOD
LOGIC
OC1 OC2
OV1 OV2
NOC1
NOC2
PWM2
31
VINSNS
25
PWM1
15
PWMEN2
26
PWMEN1
PLL/VCO
BG/BIAS
V
CC
V
CC
V
CC
100k
V
CC
1
V
CC
29
SGND
30
CONFIG
+
+