Datasheet
LTC2974
97
2974fc
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tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
revision hisTory
REV DATE DESCRIPTION PAGE NUMBER
A 5/13 Title, Features and Description revised.
Added specifications: t
INIT
, t
UPDATE_ADC
, t
OFF_MIN
.
Changed V
FS_VDAC
minimums to 1.3 and 2.5 from 1.32 and 2.53.
Curve G08: Corrected Y-axis units from mA to µA.
Block Diagram revised.
RESETB section: Clarified I
2
C disabled, 10k resistor and capacitance.
Typical Delay numbers in EEPROM Related Commands table updated.
TON_RISE Description: Changed “output starts to rise” to “V
OUT_ENn
pin goes high.”
Changed data format for MFR_DAC and MFR_I2C_BASE_ADDRESS to Reg from U16. Changed default value for
MFR_SPECIAL_ID to 0x0213 from 0x0212.
Removed U16 row from Data Formats table.
Operation, ON_OFF_CONFIG sections: Added sentence on waiting a t
OFF_MIN
.
b[5:4] Operation: Added warning about undefined MFR_DAC.
b[3] to b[0] Operation: Clarified that setting these bits disables UV and UC.
Changed Format for MFR_RETRY_COUNT to Reg from U16.
STATUS_VOUT b[3] Operation: Clarified behavior after bit is cleared.
STATUS_MFR_SPECIFIC section: Added STICKY, ALERT, OFF columns; removed FAULT column. Added column
definitions above table.
STATUS_MFR_SPECIFIC b[6] and b[5]: Clarified behavior if MFR_TRACK_EN_CHANn is set.
MFR_VOUT_MIN: Clarified when updates are disabled.
MFR_FAULT_LOG_CLEAR: Clarified conditions before issuing this command.
MFR_SPECIAL_ID: Changed value from 0x0210 to 0x0213.
Added section: Unused ADC Sense Inputs.
1
5, 9
6
10
15
18
19
24, 51
26, 44
27
30, 31
32
36
54
62
64
64
69
71
78, 79
94
B 8/13 Updated V
OS_CMP
Offset Voltage specification
V
VOUT_ENn
Output High Voltage specification changed from 11.6V minimum to 10V
7
7
C 10/13 V
AUXFAULTB
Output High Voltage specification: Changed minimum from 12V to 10V 7