SH3100IMTR SEMTECH [Semtech Corporation], SH3100IMTR Datasheet - Page 16

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

The 96-bit non-volatile fuse memory contains the calibration and confi guration control registers. The transfer column
indicates under which conditions the fuse contents are transferred to the chip control registers. Fuses are blown on
test and are extremely robust. There is no mechanism to reset fuses once blown. Calibration fuses are always set to
obtain the required parametric specifi cations. Application fuses are set as required.
© 2006 Semtech Corp.
POWER MANAGEMENT
Non-Volatile Fuse Memory Registers
Fuse Register
Bandgap reference
Internal 32.768kHz ±2% oscillator
Temperature sensor trim
VDD reset threshold (VBO)
Chip reset duration
Crystal load capacitance
Master HFDCO clock FLL control
Frequency is code x 2.048kHz
Accuracy is defi ned by 32.768kHz source
Master HFDCO clock start-up frequency
Direct HFDCO control if FLL disabled
Frequency versus code varies with process
CLK0 postscaler
CLK1 postscaler
Spread-spectrum amplitude
Spread-spectrum enable
CLK1 output enable
CLK1 switch to VBAK supply
CLK1 output invert
CLK1 force to 32.768kHz source
Chip mode select
I
Regulator start-up voltage
2
C slave address
P
B
Power on reset. (Power fi rst applied)
Brownout (VDD drops below VBO threshold)
VBO Reset
Application
Application
Application
Application
Application
Application
Application
Application
Application
Application
Application
Application
Application
Application
Application
Calibration
Calibration
Calibration
Type
16
Bits
10
14
16
4
4
7
5
5
3
4
2
1
1
1
1
1
3
3
4
W
R
Bandgap set to 1.17V ±1%
Set to 32.768kHz ±128Hz at 25°C
Temperature sensor set to ±2°C accuracy
1.7V to 4
6ms to 6 seconds
5pF to 22pF
8MHz to 33. MHz
Nominally 6MHz to 42MHz
1 to 128
1 to 32768
32kHz to 128kHz
On or Off
On or Off
On or Off
On or Off
On or Off
Normal, boost, buck, LDO, fan control
1 of 8 addresses
1.9V to 4.5V
Watchdog reset event
Forced fuse read initiated by I
Range of Values
2
C access
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SH3100
P, W, B, R
P, W, B, R
P, W, B, R
P, W, B, R
P, W, B, R
P, W, B, R
P, W, B, R
P, W, B, R
Transfer
P, W, R
P, W, R
P, W, R
P, W, R
P, W, R
P, W, R
P, W, R
P, W, R
P, W, R
P, W, R
P, R