W83L784R_05 Datasheet, PDF (16/52 Pages) Winbond – Monitoring IC

W83L784R/ W83L784G
3.3V
4
3
2
1
0
VCC
5
4
3
2
1
0
RESET
5
0
VRS
T
VRS
T
VRS
VRS
T
T
tRST
VCC
5
4
3
2
1
0
5
RESET
0
Figure 11
The time of voltage over 4V
is less than tRST
VRST
VRST
VRST
tRST
tRST
6.3.3 Battery Fault Alarm
W83L784R/G provides a good protection for DC battery. Set VIN3 to monitor DC battery voltage and
enable VBAT fault function. When VIN3 (pin13) voltage exceeds high or low limit value, pin
BATFAULT# will be asserted.
6.4 Temperature Measurement Machine
The temperature data format is 8-bit two-complement for internal sensor and 9-bit two -complement
for sensor CPUT1 and CPUT2. The 8-bit temperature data can be obtained by reading the CR [27h].
The 9-bit temperature data (CPUT1 and CPUT2) can be obtained by reading CR [00h] of its serial bus
address. The format of the temperature data is show in Table 1.
Table 1
TEMPERATURE
8-BIT DIGITAL OUTPUT
9-BIT DIGITAL OUTPUT
8-BIT BINARY
8-BIT HEX
9-BIT BINARY
9-BIT HEX
+125°C
+25°C
+1°C
+0.5°C
+0°C
-0.5°C
-1°C
-25°C
-55°C
0111,1101
7Dh
0,1111,1010
0FAh
0001,1001
19h
0,0011,0010
032h
0000,0001
01h
0,0000,0010
002h
-
-
0,0000,0001
001h
0000,0000
00h
0,0000,0000
000h
-
-
1,1111,1111
1FFh
1111,1111
FFh
1,1111,1110
1FFh
1110,0111
E7h
1,1100,1110
1CEh
1100,1001
C9h
1,1001,0010
192h
- 11 -
Publication Release Date: Jan. 2005
Revision 1.1