SE98A Datasheet, PDF (32/43 Pages) NXP Semiconductors – DDR memory module temp sensor, 1.7 V to 3.6 V

NXP Semiconductors
SE98A
DDR memory module temp sensor, 1.7 V to 3.6 V
3.0
V_th
(V)
2.5
002aad889
2.0
1.5
1.0
−40
0
40
For temp sensor conversion.
80
120
T_amb (°C)
Fig 23. Average power-on threshold voltage
5
temp error
(˚C)
3
120
thermal
response
(%)
80
40
(1)
(2)
002aad891
0
0
1
2
3
4
5
time (s)
From 25 °C (air) to 120 °C (oil bath).
(1) TSSOP8
(2) HWSON8
Fig 24. Package thermal response
002aad892
1
−1
10² 10³ 10⁴ 10⁵ 10⁶ 10⁷ 10⁸
noise frequency (Hz)
V_DD = 3.3 V + 150 mV (p-p); 0.1 µF AC coupling capacitor; no decoupling capacitor; T_amb = 25 °C.
Fig 25. Temperature error versus power supply noise frequency
3.0
I_pd
(µA)
2.0
1.0
V_DD = 3.6 V
3.0 V
2.3 V
1.7 V
002aae379
3.0
I_pd
(µA)
2.0
1.0
V_DD = 3.6 V
3.0 V
2.3 V
1.7 V
002aae380
0
−50 −25 0
25 50 75 100 125
T_amb (°C)
0
−50 −25 0
25 50 75 100 125
T_amb (°C)
a. V_I = 0.3V_DD; pins A0, A1, A2
Fig 26. Typical pull-down current
b. V_I = 0.7V_DD; pins A0, A1, A2
SE98A_2
Product data sheet
Rev. 02 — 6 August 2009
© NXP B.V. 2009. All rights reserved.
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