LTC1760
12
1760fc
For more information
www.linear.com/LTC1760
BLOCK DIAGRAM
SHORT CIRCUIT
SEQUENCER
10-BIT ∆
Σ
CURRENT DAC
LIMIT
DECODER
PowerPath
CONTROLLER
SMBus
INTERFACE
CHARGE
+
–
+
–
–
–
–
–
11-BIT ∆
Σ
VOLTAGE DAC
100Ω
100mV
SWB1
DRIVER
CHARGE
PUMP
SWB2
DRIVER
SWDC
DRIVER
CSN
+
–
ON
+
–
ON
DCIN
GCH1
SCH2
GCH2
SCH1
TGATE
PGND
BGATE
SW
BAT1
GND
DCDIV
LOPWR
V
CC
V
CC2
DCIN
DCIN
V
SET
V
PLUS
BAT2
OSCILLATOR
LOW DROP
DETECT
T
ON
BOOST
BGATE
V
CC
PWM
LOGIC
+
+
+
+
Q
S
R
100mV
CLP
+
40mV
+
–
15
SCN
GB1I GB1O
GB2I GB2O
GDCI GDCO
SCP
SCN
CSP
TH2B
TH2A
TH1B
TH1A
CSN
I
SET
CA1
3k
3k
0.8V
BUFFERED I
TH
g
m
= 1.4m
g
m
= 0.4m
Ω
g
m
= 1.4m Ω
I
REV
I
CMP
I
TH
COMP1
CSP-CSN
3kΩ
36
38
39
42
44
43
13
41
16
12
40
24
25
1
2
3
48
47
45
46
9
8
11
10
7
6
37
14
5
4
MODE
26
30
31
28
27
15
35
34
CL1
CA2
V
CC
REGULATOR
SAFETY
SIGNAL
DECODER
1.19V
0.86V
CSN
0V
400k
EA
0.8V
AC_PRESENT
I
LIMIT
32
V
LIMIT
33
1760 BD
3mV
SDA2
SCL2
SDA1
SCL1
SDA
SCL
V
DDS
V
CC2
18
22
19
23
17
21
20
SMBALERT
29
10µA
+
–
+
–
+
–
–
