Electrical characteristics (continued) – Rainbow Electronics MAX6796 User Manual
Page 5
MAX6791–MAX6796
High-Voltage, Micropower, Single/Dual Linear
Regulators with Supervisory Functions
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 14V, C
IN
= 1µF, C
OUT
= 10µF, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= T
J
= +25°C.)
(Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RESET OUTPUT
L
4.500
4.625
4.750
M
4.250
4.375
4.500
T
2.970
3.053
3.135
S
2.805
2.888
2.970
Z
2.250
2.313
2.375
Y
2.125
2.188
2.250
W
1.620
1.665
1.710
Reset Threshold (Preset Output
Voltage)
SET/SET1 = GND
V
1.530
1.575
1.620
V
L/T/Z/W
0.90 x
V
OUT
0.925 x
V
OUT
0.95 x
V
OUT
Reset Threshold (Adjustable
Output Voltage)
M/S/Y/V
0.85 x
V
OUT
0.875 x
V
OUT
0.90 x
V
OUT
V
OUT to Reset Delay
V
OUT1
/V
OUT
falling
35
µs
D0
35
µs
D1
2.187
3.125
4.063
D2
8.75
12.5
16.25
D3
35
50
65
Reset Timeout Period
(CSRT = OUT/OUT1)
t
RP
V
OUT1
/V
OUT
rising
D4
140
200
260
ms
CSRT Ramp Current
800
1000
1250
nA
CSRT Ramp Threshold
1.185
1.218
1.255
V
WATCHDOG INPUT
CSWT = OUT/OUT1 (fixed)
280.0
400.0
520.0
Normal Watchdog Timeout Period
t
WD2
CSWT = 1500pF (adjustable)
170
236.2
290
ms
CSWT = OUT/OUT1 (fixed)
37.5
50.0
62.5
Fast Watchdog Timeout Period
SET Ratio = 8
t
WD1
CSWT = 1500pF (adjustable)
21.95
29.52
36.90
ms
CSWT = OUT/OUT1 (fixed)
18.75
25.0
31.25
Fast Watchdog Timeout Period
SET Ratio = 16
t
WD1
CSWT = 1500pF (adjustable)
10.80
14.76
18.45
ms
CSWT = OUT/OUT1 (fixed)
4.68
6.25
7.81
Fast Watchdog Timeout Period
SET Ratio = 64
t
WD1
CSWT = 1500pF (adjustable)
2.52
3.69
4.62
ms
Fast Watchdog Minimum Period
t
WD0
2000
ns
CSWT Ramp Current
Adjustable timeout
800
1000
1250
nA
CSWT Ramp Threshold
Adjustable timeout
1.185
1.218
1.255
V
Undercurrent Threshold for
Watchdog Enable
7.0
10
13.8
mA
Undercurrent Threshold for
Watchdog Disable
3
5
7
mA