C8051F391 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
MFG CO.
'C8051F391' PDF : 300 Pages View PDF
C8051F39x/37x
Table 7.13. Voltage Reference Electrical Characteristics
VDD = 3.0 V, –40 to +105 °C (C8051F39x), –40 to +85 °C (C8051F37x), unless otherwise specified.
Parameter
Condition
Min Typ Max Unit
Internal Reference (REFBE = 1)
Output Voltage
2.4 V Setting
2.37 2.4 2.43
V
1.2 V Setting
1.18 1.2 1.22
V
VREF Short-Circuit Current
—
—
8
mA
VREF Temperature
Coefficient
—
33
— ppm/°C
Load Regulation
Load = 0 to 200 µA to AGND
—
6
— µV/µA
VREF Turn-on Time 1
4.7 µF tantalum, 0.1 µF ceramic bypass — 1.5 —
ms
VREF Turn-on Time 2
0.1 µF ceramic bypass
— 110 —
µs
Power Supply Rejection 2.4 V Setting
— 3.5 — mV/V
1.2 V Setting
— 1.1 — mV/V
External Reference (REFBE = 0)
Input Voltage Range
Input Current
1.0
—
VDD
V
Sample Rate = 200 ksps; VREF = 3.0 V —
3
—
µA
Power Specifications
Supply Current
REFBE = “1” or TEMPE = “1”
—
70 100
µA
Table 7.14. Voltage Regulator Electrical Characteristics
VDD = 3.0 V, –40 to +105 °C (C8051F39x), –40 to +85 °C (C8051F37x), unless otherwise specified.
Parameter
Output Voltage
Power Supply Sensitivity
Temperature Sensitivity
Condition
Constant Temperature
Constant Supply
Min Typ Max Unit
1.73 1.78 1.83
V
—
0.5
—
%/V
—
55
— ppm/°C
40
Preliminary Rev. 0.71
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