ltc6803g-3 Linear Technology Corporation, ltc6803g-3 Datasheet - Page 24

• Manufacturer Part Number: ltc6803g-3
• Description: Ltc6803-1/ltc6803-3 - Multicell Battery Stack Monitor
• Manufacturer: Linear Technology Corporation

LTC6803-1/LTC6803-3
OPERATION
Table 10. Temperature (TMP) Register Group
REGISTER
TMPR0
TMPR1
TMPR2
TMPR3
TMPR4
Table 11. Packet Error Code (PEC)
REGISTER
PEC
Table 12. Diagnostic Register Group
REGISTER
DGNR0
DGNR1
Table 13. Memory Bit Descriptions
NAME
CDC
CELL10
LVLPL
GPIO1
GPIO2
WDT
DCCx
V
V
MUXFAIL Multiplexer Self Test Result
24
UV
OV
DESCRIPTION
Comparator Duty Cycle
10-Cell Mode
Level Polling Mode
GPIO1 Pin Control
GPIO2 Pin Control
Watchdog Timer
Discharge Cell x
Undervoltage Comparison Voltage*
Overvoltage Comparison Voltage*
RD/WR
RD/WR
RD/WR
RD
RD
RD
RD
RD
RD
RD
RD
ETMP2[11]
ETMP1[7]
ETMP2[3]
ITMP[7]
PEC[7]
REF[7]
REV[1]
BIT 7
BIT 7
BIT 7
NA
ETMP2[10]
ETMP1[6]
ETMP2[2]
ITMP[6]
PEC[6]
REF[6]
REV[0]
BIT 6
BIT 6
BIT 6
NA
VALUES
0 = 12-cell mode (default); 1 = 10-cell mode
0 = toggle polling (default); 1 = level polling
Write: 0 = GPIO1 pin pull-down on; 1 = GPIO1 pin pull-down off (default)
Read: 0 = GPIO1 pin at logic ‘0’; 1 = GPIO1 pin at logic ‘1’
Write: 0 = GPIO2 pin pull-down on; 1 = GPIO2 pin pull-down off (default)
Read: 0 = GPIO2 pin at logic ‘0’; 1 = GPIO2 pin at logic ‘1’
Read: 0 = WDT pin at logic ‘0’; 1 = WDT pin at logic ‘1’
x = 1..12 0 = turn off shorting switch for cell ‘x’ (default); 1 = turn on shorting switch
Comparison voltage = (V
Comparison voltage = (V
Read: 0 = test passed; 1 = test failed
(default)
CDC
0
1
2
3
4
6
7
5
ETMP1[5]
ETMP2[1]
ETMP2[9]
ITMP[5]
MUXFAIL
PEC[5]
REF[5]
BIT 5
BIT 5
BIT 5
NA
UV/OV COMPARATOR
N/A (Comparator Off)
N/A (Comparator Off)
Standby Mode
PERIOD
2000ms
130ms
500ms
130ms
500ms
13ms
UV
OV
ETMP1[4]
ETMP2[0]
ETMP2[8]
ITMP[4]
PEC[4]
REF[4]
THSD
BIT 4
– 31) • 16 • 1.5mV
– 32) • 16 • 1.5mV
BIT 4
BIT 4
NA
ETMP1[11]
ETMP1[3]
ETMP2[7]
ITMP[11]
ITMP[3]
REF[11]
BETWEEN MEASUREMENTS
PEC[3]
REF[3]
BIT 3
BIT 3
BIT 3
V
REF
POWERED DOWN
Yes
Yes
Yes
Yes
No
No
No
No
ETMP1[10]
ETMP1[2]
ETMP2[6]
ITMP[10]
ITMP[2]
REF[10]
PEC[2]
REF[2]
BIT 2
BIT 2
BIT 2
ETMP1[1]
ETMP1[9]
ETMP2[5]
ITMP[1]
ITMP[9]
PEC[1]
REF[1]
REF[9]
BIT 1
BIT 1
BIT 1
MEASUREMENT TIME
CELL VOLTAGE
13ms
13ms
13ms
13ms
21ms
21ms
21ms
N/A
ETMP1[0]
ETMP1[8]
ETMP2[4]
ITMP[0]
ITMP[8]
PEC[0]
REF[0]
REF[8]
BIT 0
BIT 0
BIT 0
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