MAX6720A(2019) Просмотр технического описания (PDF) - Maxim Integrated
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MAX6720A Datasheet PDF : 19 Pages
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MAX6715A–MAX6729A/
MAX6797A
Dual/Triple, Ultra-Low-Voltage, SOT23 μP
Supervisory Circuits
Electrical Characteristics (continued)
(VCC1 = 0.8V to 5.5V, VCC2 = 0.8V to 5.5V, GND = 0V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Reset Threshold Tempco
Reset Threshold Hysteresis
VCC to Reset Output Delay
ΔVTH/°C
VHYST Referenced to VTH typical
tRD
VCC1 = (VTH1 + 100mV) to (VTH1 - 100mV) or
VCC2 = (VTH2 + 75mV) to (VTH2 - 75mV)
D1
1.1
20
0.5
20
1.65
ppm/°C
%
µs
2.2
D2
8.8
13.2 17.6
D7 (MAX6797A only)
17.5 26.25 35
Reset Timeout Period
D8 (MAX6797A only)
tRP
D3
35
52.5
70
ms
140
210
280
D5
280
420
560
D6
560
840 1120
D4
1120 1680 2240
ADJUSTABLE RESET COMPARATOR INPUT (MAX6719A/MAX6720A/MAX6723A–MAX6727A)
RSTIN Input Threshold
RSTIN Input Current
RSTIN Hysteresis
VRSTIN
IRSTIN
611 626.5 642
mV
-100
+100
nA
3
mV
RSTIN to Reset Output Delay
tRSTIND VRSTIN to (VRSTIN - 30mV)
POWER-FAIL INPUT (MAX6728A/MAX6729A)
22
µs
PFI Input Threshold
VPFI
PFI Input Current
IPFI
PFI Hysteresis
VPFH
PFI to PFO Delay
tDPF
(VPFI + 30mV) to (VPFI - 30mV)
MANUAL-RESET INPUT (MAX6715A–MAX6722A/MAX6725A–MAX6729A)
611 626.5 642
mV
-100
+100
nA
3
mV
2
µs
MR Input Voltage
VIL
VIH
MR Minimum Pulse Width
0.3 x VCC1
V
0.7 x VCC1
1
µs
MR Glitch Rejection
100
ns
MR to Reset Delay
tMR
MR Pullup Resistance
200
ns
25
50
80
kΩ
WATCHDOG INPUT (MAX6721A–MAX6729A)
Watchdog Timeout Period
First watchdog period after reset timeout
tWD
period
Normal mode
35
54
72
s
1.12 1.68 2.24
WDI Pulse Width
WDI Input Voltage
WDI Input Current
tWDI
VIL
VIH
IWDI
(Note 2)
VWDI = 0V or VCC1
50
0.3 x VCC1
0.7 x VCC1
-1
ns
V
+1
µA
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