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LM82 Datasheet(PDF) 15 Page - Texas Instruments |
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LM82 Datasheet(HTML) 15 Page - Texas Instruments |
15 / 25 page LM82 www.ti.com SNIS113D – JANUARY 2000 – REVISED MARCH 2013 Command Select Power On Default State Register Name Register Function Address <P7:P0> hex <D7:D0> binary <D7:D0> decimal 50h 0111 1111 127 Reserved 51h Reserved for Future Use 52h 0111 1111 127 Reserved 53h-59h Reserved for Future Use 5Ah 0111 1111 127 WTCS Write T_CRIT Setpoint 5Ch-6Fh and F0h- Reserved for Future Use FDh FEh 0000 0001 1 RMID Read Manufacturers ID FFh 0000 0011 3 RSR Read Stepping or Die Revision Code LOCAL and REMOTE TEMPERATURE REGISTERS (LT, and RT) Table 1. LOCAL and REMOTE TEMPERATURE REGISTERS (LT, and RT) (Read Only Address 00h, and 01h): D7 D6 D5 D4 D3 D2 D1 D0 MSB Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 LSB D7–D0: Temperature Data. One LSB = 1°C. Two's complement format. STATUS REGISTER Table 2. STATUS REGISTER (Read Only Address 02h): D7 D6 D5 D4 D3 D2 D1 D0 0 LHIGH 0 RHIGH 0 OPEN RCRIT LCRIT Power up default is with all bits “0” (zero). D0: LCRIT: When set to a 1 indicates an Local Critical Temperature alarm. D1: RCRIT: When set to a 1 indicates a Remote Diode Critical Temperature alarm. D2: D2OPEN: When set to 1 indicates a Remote Diode disconnect. D4: D2RHIGH: When set to 1 indicates a Remote Diode HIGH Temperature alarm. D6: LHIGH: When set to 1 indicates a Local HIGH Temperature alarm. D7, D5, and D3: These bits are always set to 0 and reserved for future use. MANUFACTURERS ID AND DIE REVISION (Stepping) REGISTERS MANUFACTURERS ID AND DIE REVISION (Stepping) REGISTERS (Read Address FEh and FFh) Default value 01h for Manufacturers ID(FEh ). CONFIGURATION REGISTER Table 3. CONFIGURATION REGISTER (Read Address 03h/Write Address 09h): D7 D6 D5 D4 D3 D2 D1 D0 INT mask 0 Remote Remote Remote Local INT Inversion 0 T_CRIT_A T_CRIT_A T_CRIT_A T_CRIT_A mask mask mask mask Power up default is with all bits “0” (zero). D7: INT mask: When set to 1 INT interrupts are masked. D5: T_CRIT mask, this bit must be set to a 1 before the T_CRIT setpoint is lowered below 127 in order for T_CRIT_A pin to function properly. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 15 Product Folder Links: LM82 |
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