LTC6801
4
6801fc
For more information www.linear.com/LTC6801
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C, V
+
= 43.2V, V
–
= 0V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
LTC6801 Single Ended Digital I/O Specifications (S LT , SLTOK Pins)
V
IH
Digital Input Voltage High S LT Pin
l
2 V
V
IL
Digital Input Voltage Low S LT Pin
l
0.5 V
V
ODL
Digital Output Voltage Low, Open Drain S LT Pin, 10k to V
REG
l
0.3 V
V
OH
Digital Output Voltage High SLTOK Pin, 10k to V
–
l
V
REG
– 0.3 V
V
OL
Digital Output Voltage Low SLTOK Pin, 10k to V
REG
l
0.3 V
I
PU-ST
Pull-Up Current S LT Pin
l
2.5 5 10 µA
LTC6801 Differential Digital Input Specifications (SIN/SIN, EIN/EIN Pins) (See Figure 1)
V
IDH
Minimum Differential Input Voltage High Differential Voltage Applied Between SIN
and SIN or EIN and EIN
l
1.7 V
V
IDL
Minimum Differential Input Voltage Low
l
–1.7 V
V
IL
Valid Input Voltage Low Low Side of Differential Signal, Ref. to V
–
l
0 1.2 V
V
IH
Valid Input Voltage High High Side of Differential Signal, Ref. to V
–
l
2.5 6 V
V
DHYS
Differential Input Hysteresis 1 V
V
OPEN
Open Circuit Voltage
l
2 2.5 3 V
R
INCM
Input Resistance, Common Mode
l
100 150 kΩ
R
INDIFF
Input Resistance, Differential Between SIN to SIN, EIN to EIN
l
200 300 kΩ
LTC6801 Differential Digital Output Specifications (SOUT/SOUT, EOUT/EOUT Pins)
V
ODH
Digital Output Voltage High Output Pins Loaded With 100k to V
–
l
V
REG
– 0.4 V
V
ODL
Digital Output Voltage Low Output Pins Loaded With 100k to V
REG
l
0.4 V
LTC6801 Three-Level Digital Input Specifications (OV0, OV1, UV0, UV1, HYST, DC, CC0 and CC1 Pins)
V
3IH
Three-Level Digital Input Voltage High
l
V
REG
– 0.3 V
V
3IM
Three-Level Digital Input Voltage Mid
l
V
REF
– 0.3 V
REF
+ 0.3 V
V
3IL
Three-Level Digital Input Voltage Low
l
0.3 V
I
PU
Pull-Up Current Pins DC, CC0, CC1, UV0 and UV1
l
0.5 1 2 µA
I
PD
Pull-Down Current Pins HYST, OV0 and OV1
l
0.5 1 2 µA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Figure 1. Differential Input Specifications
–
= 0V
EIN
EIN
V
IDH
(VALID HIGH WHEN
EIN – EIN ≥ V
IDH
)
MAX, V
IH
T
ENA
MIN, V
IH
MAX, V
IL
V
IDL
(VALID LOW WHEN EIN – EIN ≤ V
IDL
)
Note 2: V
CELL
refers to the voltage applied across the following pin
combinations: Cn to Cn – 1 for n = 2 to 12, C1 to V
–
.
Note 3: Guaranteed by continuous monitoring supply current
specifications, not subject to test.
