参数资料
型号: TPS3305-18QDRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封装: PLASTIC, SO-8
文件页数: 15/16页
文件大小: 458K
代理商: TPS3305-18QDRQ1
TPS330615Q1, TPS330618Q1, TPS330620Q1, TPS330625Q1, TPS330633Q1
DUAL PROCESSOR SUPERVISORY CIRCUITS WITH POWERFAIL
SGLS241 MARCH 2004
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics at VDD = 2.7 V to 6 V, RL = 1 M, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tt(out)
Watchdog time out
VI(SENSEn) ≥ VIT + 0.2 V,
See timing diagram
0.5
0.8
1.2
s
td
Delay time
VI(SENSEn) ≥ VIT + 0.2 V,
See timing diagram
70
100
140
ms
tPHL
Propagation (delay) time,
high-to-low level output
SENSEn to RESET
VIH = VIT +0.2 V, VIL = VIT 0.2 V
1
5
s
tPHL
Propagation (delay) time,
high-to-low level output
PFI to PFO
0.5
1
s
tPLH
Propagation (delay) time,
low-to-high level output
PFI to PFO
0.5
1
s
TYPICAL CHARACTERISTICS
Figure 2
1
0.999
0.997
0.995
40
15
10
35
Normalized
Input
Threshold
V
oltage
VIT(T
A),
VIT(25
)
1.002
1.003
NORMALIZED SENSE THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE AT VDD
1.005
60
85
VDD = 6 V
1.004
1.001
0.998
0.996
C
°
TA Free-Air Temperature °C
Figure 3
4
0
6
10
0.5 0 0.5 1
2.5 3 3.5
Supply
Current
8
14
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
18
45
6
7
16
12
10
6
2
4
8
1.5 2
4.5
5.5
6.5
I DD
A
VDD Supply Voltage V
SENSEn = VDD
TA = 25°C
TPS330633
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