Datasheet

ELECTRICAL CHARACTERISTICS t
hese specifications unless otherwise specified, apply for :
T
amb
= –25 to 85
o
C (TLXXAI), T
amb
= 0 to 70
o
C (TL77XXAC)
Symbol Parameter Test Conditions (1) Min. Typ. Max. Unit
V
OH
High-level Output Voltage at RESET I
OH
= –16mA V
s
-
1.5
V
V
OL
Low-Level Output Voltage at RESET I
OL
= 16mA 0.4 V
V
ref
Reference Voltage T
amb
= 25
o
C 2.48 2.53 2.58 V
V
T
Threshold Voltage at SENSE Input TL7702A
TL7705A
V
s
= 3.6V to 18V
T
amb
= 25
o
C
2.48
4.5
2.53
4.55
2.58
4.6
V
V
T
Threshold Voltage at SENSE Inpu TL7702A
TL7705A
V
s
= 3.6V to 18V 2.45
4.45
2.53
4.55
2.58
4.6
V
V
T+
, V
T–
Hysteresis (2) at SENSE Input TL7702A
TL7705A
V
s
= 3.6V to 18V
T
amb
= 25
o
C
10
15
mV
I
I
Input Current at RESIN Input V
i
= 2.4V to V
S
V
i
= 0.4V
20
-100
µ
A
I
I
Input Current at SENSE Input TL7702A V
ref
< V
i
< V
s
- 1.5V 0.5 2
µ
A
I
OH
High-level Output Current at RESET V
O
= 18V 50
µ
A
I
OL
Low-level Output Current at RESET V
O
= 0V -50
µ
A
I
S
Supply Current All Inputs and out.
open
1.8 3.3 mA
Notes :
1. All characteristics are measured with C = 0.1
µ
F from Pin 1 to GND, and with C = 0.1
µ
F from Pin 3 to GND.
2. Hysteresis is the difference between the positive going input threshold voltage. V
T+
, and the negative going input threshold
voltage, V
T-
.
SWITCHING CHARACTERISTICS
Symbol Parameter Test Conditions Min. Typ. Max. Unit
t
pi
Pulse Width at SENSE Input V
ih
= V
ityp
+0.04 x V
i
V
iL
= V
ityp
–0.04 x V
i
0.9
µ
s
t
pi
Pulse Width at RESIN Input 0.4
µ
s
t
po
Pulse Width at Output C
T
= 0.1
µ
F 0.65 1.3 2.6 ms
t
pdHL
Propagation Delay Time from RESIN
to RESET
C
L
= 100pF, V
s
= 5V, R
L
= 4.7k
Ω
1
µ
s
t
r/f
Rise/Falltime at RESET and RESET C
L
= 10pF, V
s
= 5V, R
L
= 4.7k
Ω
1
µ
s
TL7700A Series
3/7