ltc1760 Linear Technology Corporation, ltc1760 Datasheet - Page 2

• Manufacturer Part Number: ltc1760
• Description: Dual Smart Battery System Manager
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
LTC1760
(Note 1)
Voltage from DCIN, SCP, SCN, CLP,
Voltage from SCH1, SCH2 to GND ................ 28V/–0.3 V
Voltage from BOOST to GND ........................ 37V/ –0.3V
CSP, CSN, BAT1, BAT2 to GND ..................... 28V/–0.3V
LOPWR, DCDIV to GND ................................ 10V/ –0.3V
Voltage from V
SDA1, SDA2, SDA, SCL1, SCL2, SCL, SMBALERT
MODE to GND ..................................... V
COMP1 to GND ............................................... 5V/ –0.3V
Maximum DC Current Into Pin
Operating Ambient Temperature (Note 6) .... 0°C to 70°C
Operating Junction Temperature ...........–40°C to 125°C
Storage Temperature .............................–65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
temperature range, otherwise specifications are at T
unless otherwise noted.
SYMBOL
Supply and Reference
I
I
I
I
I
V
V
V
V
UVLO
V
V
Switching Regulator
V
2
ELECTRICAL CHARACTERISTICS
CH0
CH1
VCC2_AC1
VCC2_AC0
BAT
FDC
FB1
FB2
FSCN
VCC
LDR
TOL
to GND ........................................................ 7V/–0.3V
SDA1, SDA2, SDA, SCL1, SCL2, SCL .............. ±3mA
TH1A, TH2A ..................................................... –5mA
TH1B, TH2B .................................................. –102µA
V
PLUS
, SW to GND ................................... 32V/–0.3 V
PARAMETER
DCIN Operating Range
DCIN Operating Current
V
Battery Operating Voltage Range Battery Selected, PowerPath Function
Battery Drain Current
V
DCIN to V
BAT1 to V
BAT2 to V
SCN to V
Undervoltage Lockout Threshold V
V
V
Voltage Accuracy
CC2
PLUS
CC
CC
Regulator Output Voltage
Load Regulation
CC2
Operating Current
Diodes Forward Voltage:
W
PLUS
, V
PLUS
PLUS
PLUS
DDS
to GND .................... 7V/–0.3 V
W W
CONDITIONS
DCIN Selected
Not Charging (DCIN Selected) (Note 10)
Charging (DCIN Selected) (Note 10)
AC Present (Note 11)
AC Not Present (Note 11)
Battery Selected, Charging Function (Note 2)
Battery Selected, Not Charging, V
I
I
I
I
I
With Respect to Voltage Reported by Battery
V
VCC
VCC
VCC
VCC
VCC
PLUS
CHMIN
CC2
= 10mA
= 0mA
= 0mA
= 0mA
= 0mA to 10mA
Ramping Down, Measured at V
< Requested Voltage < V
+0.3V/–0.3V
U
A
= 25°C. V
The
●
DCIN
denotes the specifications which apply over the full operating
= 20V, V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LIMIT
DCIN
LOPWR
DCDIV
V
GDCO
GB1O
GB2O
SDA2
SDA1
BAT2
BAT1
GDCI
SCL2
SCL1
V
GB1I
GB2I
PLUS
V
GND
SCN
SCP
SDA
I
SCL
DDS
SET
SET
I
TH
PLUS
= 0V (Note 10)
BAT1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
T
JMAX
48-LEAD PLASTIC TSSOP
to GND
= 12V, V
= 125°C, θ
FW PACKAGE
TOP VIEW
BAT2
JA
= 110°C/W
= 12V, V
●
●
●
●
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
SCH2
GCH2
GCH1
SCH1
TGATE
BOOST
SW
DCIN
V
BGATE
PGND
COMP1
CLP
CSP
CSN
V
I
TH1B
TH1A
SMBALERT
TH2A
TH2B
MODE
V
LIMIT
CC
LIMIT
CC2
MIN
–32
4.9
VDDS
6
6
0
3
U
= 3.3V, V
0.75
TYP
175
1.3
0.8
0.7
0.7
0.7
5.2
0.2
75
1
ORDER PART
LTC1760CFW
NUMBER
W
VCC2
MAX
100
1.5
5.5
28
28
28
32
2
1
5
1
= 5.2V
UNITS
U
1760f
mA
mA
mA
mV
µA
µA
%
V
V
V
V
V
V
V
V
V