MAX791E(1995) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX791E Datasheet PDF : 20 Pages
| |||
Microprocessor Supervisory Circuit
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
VCC SUPPLY CURRENT vs. TEMPERATURE
(NORMAL OPERATING MODE)
58
VCC = +5V
VBATT = 2.8V
54
PFI, CE IN = 0V
50
46
42
BATTERY SUPPLY CURRENT vs. TEMPERATURE
(BATTERY-BACKUP MODE)
2
120
VCC = 0V
VBATT = 2.8V
NO LOAD
1.5
100
1
80
0.5
60
CHIP-ENABLE ON-RESISTANCE
vs. TEMPERATURE
VCC = +4.75V
VBATT = 2.8V
CE IN = VCC/2
38
-60 -30
0 30 60 90 120 150
TEMPERATURE (°C)
VBATT-to-VOUT ON-RESISTANCE
vs. TEMPERATURE
20
VBATT = 2.0V
15
VBATT = 2.8V
10
VBATT = 4.5V
5
-60 -30 0
VCC = 0V
30 60 90 120 150
TEMPERATURE (°C)
4.80
4.75
4.70
4.65
4.60
4.55
4.50
4.45
4.40
4.35
4.30
-60
RESET THRESHOLD
vs. TEMPERATURE
VBATT = 0V,
POWER DOWN
-30 0 30 60 90 120 150
TEMPERATURE (°C)
0
-60 -30
0 30 60 90 120 150
TEMPERATURE (°C)
VCC-to-VOUT ON-RESISTANCE
vs. TEMPERATURE
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-60 -30 0
VCC = +5V,
VBATT = 0V
30 60 90 120 150
TEMPERATURE (°C)
RESET OUTPUT RESISTANCE
vs. TEMPERATURE
600
500
400
VCC = +5V, VBATT = 2.8V
300
SOURCING CURRENT
200
VCC = 0V, VBATT = 2.8V
100
SINKING CURRENT
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
40
-60 -30 0 30 60 90 120 150 180
TEMPERATURE (°C)
PFI THRESHOLD
vs. TEMPERATURE
1.50
1.25
1.00
0.75
0.50
0.25
0
-60 -30 0
VCC = +5V,
VBATT = 0V,
NO LOAD ON PFO
30 60 90 120 150
TEMPERATURE (°C)
RESET DELAY
vs. TEMPERATURE
230
VCC = 0V TO 5V STEP
220 VBATT = 2.8V
210
200
190
180
170
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
Share Link: 