CP2102/9
Table 3. Recommended Operating Conditions
VDD = 3.0 to 3.6 V, –40 to +85 °C unless otherwise specified
Parameter
Symbol Test Condition
Min
Typ
Max
Unit
Supply Voltage
VDD
Supply Current - USB Pull-up1
IPU
Specified Operating Temperature
TA
Range
Thermal Resistance2
θJA
3.0
3.3
3.6
V
—
200
230
µA
–40
—
+85
°C
—
32
—
°C/W
CP2102
Supply Current—Normal3
Supply Current—Suspended3
Normal Operation; —
IREGIN
VREG Enabled
Bus Powered;
—
VREG Enabled
20
26
mA
80
100
µA
CP2109
Supply Current—Normal3
Supply Current—Suspended3
Normal Operation; —
IREGIN
VREG Enabled
Bus Powered;
—
VREG Enabled
17
23
mA
90
230
µA
Notes:
1. The USB Pull-up supply current values are calculated values based on USB specifications. USB Pull-up supply current
is current flowing from VDD to GND through USB pull-down/pull-up resistors on D+ and D-.
2. Thermal resistance assumes a multi-layer PCB with any exposed pad soldered to a PCB pad.
3. USB Pull-up current should be added for total supply current. Normal and suspended supply current is current flowing
into VREGIN. Normal and suspended supply current is guaranteed by characterization.
Rev. 1.8
7