TPS3619-33-EP Datasheet, PDF (10/18 Pages) Texas Instruments – BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION

TPS3619-33-EP, TPS3619-50-EP
TPS3620-33-EP, TPS3620-50-EP
SGLS350C – JULY 2006 – REVISED SEPTEMBER 2010
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TYPICAL CHARACTERISTICS (continued)
LOW-LEVEL OUTPUT VOLTAGE AT RESET
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE AT RESET
vs
LOW-LEVEL OUTPUT CURRENT
3.5
V_DD = 3.3 V
3
V_BAT = GND
500
Expanded View
V_DD = 3.3 V
400
V_BAT = GND
T_A = 85°C
2.5
T_A = 0°C
2
T_A = 25°C
1.5
T_A = 85°C
T_A = 25°C
300
T_A = 0°C
200
1
T_A = −40°C
100
0.5
T_A = −40°C
0
0
5
10
15
20
25
I_OL − Low-Level Output Current − mA
Figure 9.
MINIMUM PULSE DURATION AT V_DD
vs
THRESHOLD OVERDRIVE AT V_DD
10
9
8
7
6
5
4
3
2
1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Threshold Overdrive at V_DD − V
Figure 11.
0
0
1
2
3
4
5
I_OL − Low-Level Output Current − mA
Figure 10.
MINIMUM PULSE DURATION AT PFI
vs
THRESHOLD OVERDRIVE AT PFI
5
4.6
4.2
V_DD = 1.65 V
3.8
3.4
3
2.6
2.2
1.8
1.4
1
0.6
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Threshold Overdrive at PFI − V
Figure 12.
10
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