Datasheet

LM95241

SNIS143E –AUGUST 2006–REVISED MARCH 2013

www.ti.com

Bits Name Description

0 Remote Diode 1 Missing (RD1M) When set to "1" Remote Diode 1 is missing. (See DIODE FAULT DETECTION

for further details.) Temperature Reading is FFE0h which converts to 255.875

°C if unsigned format is selected or 8000h which converts to –128.000 °C if

signed format is selected. Note, connecting a 3904 transistor to Remote 1

inputs with TruTherm mode active may also cause this bit to be set.

CONFIGURATION REGISTER

(Read Address 03h /Write Address 03h):

D7 D6 D5 D4 D3 D2 D1 D0

0 RUN/STOP CR1 CR0 0 R2DF R1DF 0

Bits Name Description

7 Reserved Reports "0" when read.

6 RUN/STOP Logic 1 disables the conversion and puts the part in standby mode.

Conversion can be activated by writing to one-shot register.

5-4 Conversion Rate (CR1:CR0) 00: continuous mode 76.5 ms, 13.1 Hz (typ), when TruTherm Mode is disabled

(Diode Equation) for both remote channels; 77.8 ms, 12.9 Hz (typ), when

TruTherm Mode is enabled (Transistor Equation) for one remote channel.

01: converts every 182 ms, 5.5 Hz (typ)

10: converts every 1 second, 1 Hz (typ)

11: converts every 2.7 seconds, 0.37 Hz (typ)

3 Reserved Reports "0" when read.

2 Remote 2 Data Format (R2DF) Logic 0: unsigned Temperature format (0 °C to +255.875 °C)

Logic 1: signed Temperature format (-128 °C to +127.75 °C)

1 Remote 1 Data Format (R1DF) Logic 0: unsigned Temperature format (0 °C to +255.875 °C)

Logic 1: signed Temperature format (-128 °C to +127.75 °C)

0 Reserved Reports "0" when read.

Power up default is with all bits “0” (zero)

REMOTE DIODE FILTER CONTROL REGISTER

(Read/write Address 06h):

D7 D6 D5 D4 D3 D2 D1 D0

0 0 0 0 0 R2FE 0 R1FE

Bits Name Description

7-3 Reserved Reports "0" when read.

2 Remote 2 Filter Enable (R2FE) 0: Filter Off

1: Noise Filter On

1 Reserved Reports "0" when read.

0 Remote 1Filter Enable (R1FE) 0: Filter Off

1: Noise Filter On

Power up default is 05h.

REMOTE DIODE MODEL TYPE SELECT REGISTER

(Read/Write Address 30h):

D7 D6 D5 D4 D3 D2 D1 D0

0 0 0 0 0 R2MS 0 R1MS

Product Folder Links: LM95241