SI3460-E02-GMR Silicon Laboratories Inc, SI3460-E02-GMR Datasheet - Page 9
SI3460-E02-GMR
Manufacturer Part Number
SI3460-E02-GMR
Description
IC POWER MANAGEMENT CTLR 11VQFN
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI3460-E02-GMR.pdf
(24 pages)
Specifications of SI3460-E02-GMR
Applications
Power Sourcing Equipment (PSE)
Current - Supply
500mA
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
11-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI3460-E02-GMR
Manufacturer:
SILICON
Quantity:
1 001
3.1. PSE Timing Characteristics
When implemented in accordance with the recommended external components and layout guidelines, the Si3460
controller enables the following typical performance characteristics in single-port PSE applications. Refer to the
Si3460-EVB applications note, schematics, and user's guide for more details.
Table 6. PSE Timing*
3.1.1. PSE Timing Diagrams
The basic sequence of applying power is shown in Figure 2. Following is the description of the function that must
be performed in each phase.
Description
Endpoint detection delay
cycle
Detection time
Classification delay cycle
Classification time
Power-up turn-on delay
Midspan detect backoff time
Current limit time
Disconnect delay
*Note: These typical specifications are based on an ambient operating temperature of 25 ºC and V
Figure 2. Detection, Classification, Powerup, and Disconnect Sequence
20.5 V
15.5 V
2.8 V
57 V
10 V
44 V
t
CLASS_CYCLE
t
DET_CYCLE
Symbol
t
t
t
t
DETECT
t
PWRUP
DC_DIS
DET_CYCLE
CLASS
t
t
BOM
LIM
Time from when a valid detection is
Time from PD connection to port to
Time from successful detect mode
completion of detection process.
completed until V
Time required to measure PD
t
CLASS_CYCLE
to classification complete.
Rev. 1.1
signature resistance.
Test Conditions
t
PWRUP
applied
OUT
power is
Min
70
10
10
—
—
—
—
2
IN
(msec)
Typ
350
= +12 V.
Time
70
30
60
—
—
—
—
Si3460
Max
400
50
50
—
—
—
—
—
Unit
ms
ms
ms
ms
ms
ms
ms
s
9