Revision 1.01 – April 18, 2007
NPe405H – PowerNP NPe405H Embedded Processor
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 7. Absolute Maximum Ratings
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause
permanent damage to the device.
Characteristic
Supply Voltage (Internal Logic)
Symbol
Value
0 to +2.7
Unit
V
VDD
OVDD
AVDD
VIN
Supply Voltage (I/O Interface)
0 to +3.6
V
PLL Supply Voltage 2
0 to +2.7
V
-0.6 to (OVDD + 0.6)
-0.6 to (OVDD + 2.4)
Input Voltage (3.3V LVTTL receivers)
Input Voltage (5.0V LVTTL receivers)
Storage Temperature Range
Case temperature under bias
V
VIN
V
TSTG
TC
-55 to +150
-40 to +120
×C
×C
Notes:
1. All voltages are specified with respect to ground (GND).
2. AV should be derived from V using the following circuit:
DD
DD
L1 – 2.2
µ
H SMT inductor (equivalent to MuRata
AV
V
DD
DD
LQH3C2R2M34) or SMT chip ferrite bead (equivalent
to MuRata BLM31A700S)
L1
C1 – 3.3
µ
F SMT tantalum
C1
C2
C3
C2 – 0.1
µ
F SMT monolithic ceramic capacitor with X7R
dielectric or equivalent
C3 – 0.01
µ
F SMT monolithic ceramic capacitor with X7R
dielectric or equivalent
PACKAGE THERMAL SPECIFICATIONS
Table 8. Package Thermal Specifications
The NPe405H is designed to operate within a case temperature range of -40°C to 85°C. Thermal resistance values for the E-
PBGA packages in a convection environment are as follows:
Airflow
ft/min (m/sec)
Symbol
Package—Thermal Resistance
Unit
0 (0)
100 (0.51)
200 (1.02)
θ
35mm, 580-balls—Junction-to-Case
2
2
2
°C/W
°C/W
JC
1
θ
13
12
11
35mm, 580-balls—Case-to-Ambient
CA
Notes:
1. For a chip mounted on a JEDEC 2S2P card without a heat sink.
2. For a chip mounted on a card with at least one signal and two power planes, the following relationships exist:
a. Case temperature, T is measured at top center of case surface with device soldered to circuit board.
,
C
b. T = T – P×θ , where T is ambient temperature and P is power consumption.
CA
A
C
A
c. TCMax = TJMax – P×θ , where TJMax is maximum junction temperature and P is power consumption.
JC
52
DS2011
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