ltc1760 Linear Technology Corporation, ltc1760 Datasheet - Page 5

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

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
unless otherwise noted.
SYMBOL
t
t
V
V
Thermistor
Logic Levels
I
ONPI
OFFPI
PULLUP
PONI
POFFI
PARAMETER
Gate B1I/B2I/DCI Turn-On Time
Gate B1I/B2I/DCI Turn-Off Time
Input Gate Clamp Voltage
GB1I
GB2I
GDCI
Input Gate Off Voltage
GB1I
GB2I
GDCI
Thermistor Trip
(COLD-RANGE/OVER-RANGE)
Thermistor Trip
(IDEAL-RANGE/COLD-RANGE)
Thermistor Trip
(HOT-RANGE/IDEAL-RANGE)
Thermistor Trip
(UNDER-RANGE/HOT-RANGE)
SCL/SCL1/SCL2/SDA/SDA1/
SDA2 Input Low Voltage (V
SCL/SCL1/SCL2/SDA/SDA1/
SDA2 Input High Voltage (V
SCL/SCL1/SCL2/SDA/SDA1/
SDA2 Input Leakage Current
SCL/SCL1/SCL2/SDA/SDA1/
SDA2 Input Leakage Current
SCL1/SDA1/SCL2/SDA2 Pull-Up
Current When Not Connected to
SMBus Host
SCL1/SDA1/SCL2/SDA2
Series Impedance to Host SMBus
SCL/SDA Output Low Voltage (V
LTC1760 Driving the Pin
SCL1/SDA1/SCL2/SDA2 Pullup
Output Low Voltage (VOL).
LTC1760 Driving the Pin with Battery
SMBus not Connected to Host SMBus
SCL1/SDA1/SCL2/SDA2
Output Low Voltage (V
LTC1760 Driving the Pin with Battery
SMBus Connected to Host SMBus
OL
).
IL
IH
)
)
OL
).
CONDITIONS
V
V
I
Highest (V
Highest (V
Highest (V
I
Highest (V
Highest (V
Highest (V
C
R1A = R2A = 1130Ω ±1%
R1B = R2B = 54900Ω ±1%
C
R1A = R2A = 1130Ω ±1%
R1B = R2B = 54900Ω ±1%
C
R1A = R2A = 1130Ω ±1%
R1B = R2B = 54900Ω ±1%
C
R1A = R2A = 1130Ω ±1%
R1B = R2B = 54900Ω ±1%
V
V
V
V
V
V
Internal Series Resistor and Schottky to V
V
I
I
I
A
LOAD
LOAD
PULLUP
PULLUP
PULLUP
GS
GS
LOAD(MAX)
LOAD(MAX)
LOAD(MAX)
LOAD(MAX)
SDA
SDA2
SDA
SCL2
SCL1
VCC2
SDA1
= 25°C. V
< –3V, C
> –1V, C
, V
, V
, V
, V
= 1µA
= –25µA
= V
= 2.1V
= 4.85V and 5.55V (Current is Through
SCL
SCL
The
= 350µA
Internal to LTC1760
= 350µA on Host Side
SCL2
SCL1
SDA1
BAT1
BAT2
DCIN
BAT1
BAT2
DCIN
, V
, V
= 300pF (Note 9)
= 300pF (Note 9)
= 300pF (Note 9)
= 300pF (Note 9)
●
LOAD
LOAD
, V
DCIN
SDA1
= 0.8V
SDA1
= V
denotes the specifications which apply over the full operating
or V
or V
or V
or V
or V
or V
SDA2
SCL2
, V
, V
= 3000pF (Note 4)
= 3000pF (Note 4)
= 20V, V
SCP
SCP
SCP
SCP
SCP
SCP
, V
SCL1
SCL1
= V
SCL2
) – V
) – V
) – V
) – V
) – V
) – V
,
, V
SDA2
GB1I
GB2I
GDCI
GB1I
GB2I
GDCI
SDA2
= 0.8V
BAT1
= 0.4V
,
= 12V, V
CC2
BAT2
)
= 12V, V
●
●
●
●
●
●
●
●
●
●
●
●
4.75
4.75
4.75
28.5
2.85
MIN
425
165
2.1
95
–5
–5
VDDS
= 3.3V, V
0.18
0.18
0.18
TYP
300
100
500
220
6.7
6.7
6.7
10
30
3
LTC1760
VCC2
MAX
0.25
0.25
0.25
32.5
3.15
105
575
350
300
7.5
7.5
7.5
0.8
0.4
0.4
0.4
5
5
= 5.2V
UNITS
5
1760f
kΩ
kΩ
kΩ
µA
µA
µA
µs
µs
Ω
Ω
V
V
V
V
V
V
V
V
V
V
V