SH3100IMTR SEMTECH [Semtech Corporation], SH3100IMTR Datasheet - Page 18

• Manufacturer Part Number: SH3100IMTR
• Description: Supervisory IC with I2C Interface and PWM
• Manufacturer: SEMTECH [Semtech Corporation]

During production test, the calibration fuses are set as required to trim out process variations. For this device, the start-up
confi guration fuses are set as follows:
© 2006 Semtech Corp.
POWER MANAGEMENT
SH3100 Default Settings
ADDR
0 x 17
0 x 18
0 x 19
0 x 20
0 x 21
0 x 22
0 x 23
0x24
0x30
0x31
0x42
0x44
0x45
0x46
0x47
0x49
Xtal padding capacitance trim
HFDCO start-up frequency
FLL set frequency (MSB)
FLL set frequency (LSB)
Application fuse protect
Calibration fuse protect
VBO reset fuse protect
Comparator source
I
2
CLK0 postscaler
CLK1 postscaler
SS confi guration
Reset threshold
C Slave address
Reset duration
Device mode
CLK1 enable
CLK1 supply
CLK1 HF/LF
Invert CLK1
SS enable
DAC Value
Register
[18:0]
[4:0]
Bits
[7:0]
[5:3]
[1:0]
[2:0]
[3:0]
[6:5]
[5:0]
[7:0]
[6:0]
[4:0]
[2:0]
[7]
[6]
[5]
[4]
[7]
[2]
[1]
[0]
Crystal load capacitance
Sets default value on the 8-bit DAC if the LDO
or switching regulator modes are selected
Default start-up operating mode
Selects comparator source
Set HFDCO to CLK0 divider ratio
Sets CLK1 supply to VDD or VBAK
Sets CLK1 to HF or LF
Inverts CLK1 output
CLK1 output enable
Set HFDCO to CLK1 divider ratio
Enable HFDCO spectrum spreading
Spectrum spreading bandwidth
MSB of the FLL set frequency. Locked to
32.768kHz crystal
LSB of the FLL set frequency; locked to
32.768kHz crystal
VBO reset threshold
Reset duration
Master HFDCO start-up frequency. Use for
direct HFDCO control if FLL disabled.
Frequency versus code varies with process
LSB of I
Application fuse write protect
VBO threshold fuse write protect
Calibration fuse write protect
2
C slave address. (MSB fi xed at 0100)
18
Description
Auto-fan
660mV
222ms
11.5pF
32kHz
8 MHz
SNSE
Value
8MHz
8MHz
2.93V
VDD
000
Off
Off
Off
Off
Off
On
LF
8
1
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SH3100
Fuse Setting
Dependent
01000001
01101010
0110010
001111
Device
01101
00110
0000
101
011
000
11
00
0
0
0
0
0
0
0
1