EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 496

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Temperature Sensing Diode
Figure 16–1. Stratix III Power Management Example
Note to
(1)
Temperature
Sensing Diode
16–6
Stratix III Device Handbook, Volume 1
VIN
When V
Figure
CC
Voltage Regulator (V
Voltage Regulator (V
Voltage Regulator (V
16–1:
Voltage Regulator (V
Voltage Regulator (Core)
= 0.9 V, a separate voltage regulator is needed.
for the I/O Elements
Voltage Regulator
Voltage Regulator
Voltage Regulator
Variable (1.1 V)
(Termination)
Fixed (2.5 V)
Fixed (2.5 V)
Fixed (2.5 V)
Fixed (1.1 V)
(V
(V
I/O (2.5 V)
CCA_PLL
CCPGM/
2.5 V
)
)
Figure 16–1
devices.
The Stratix III TSD uses the characteristics of a PN junction diode to
determine die temperature. Knowing the junction temperature is crucial
for thermal management. Historically, junction temperature is calculated
using ambient or case temperature, junction-to-ambient (θ
junction-to-case (θ
consumption. A Stratix III device can monitor its die temperature with an
embedded temperature sensing diode (TSD), so you can control the air
flow to the device.
The
detail.
CCPT
CCPD
CCIO
CC
)
“External Pin Connections”
)
)
)
shows an example of power management for Stratix III
V
V
V
jc
CCL
CC
) thermal resistance, and the device power
CCIO
V
CCPD
V
CCPGM
Stratix III
section describes the Stratix III TSD in
V
CCPT
V
CCA_PLL
Reference
User I/O
Voltage
V
REF
Altera Corporation
ja
) or
October 2007
Termination
Resistor