TC54xxxx TelCom Semiconductor, TC54xxxx Datasheet - Page 3

• Manufacturer Part Number: TC54xxxx
• Description: VOLTAGE DETECTOR
• Manufacturer: TelCom Semiconductor

TIMING CHART
VOLTAGE DETECTOR
MARKING
DETECT VOLTAGE V DET
Nch
CMOS
= output (Nch or CMOS) plus first voltage digit
= first voltage decimal (0-9)
&
MINIMUM OPERATING
OUTPUT VOLTAGE
TELCOM SEMICONDUCTOR, INC.
GROUND LEVEL
GROUND LEVEL
SOT-23A-3
= assembly lot number
VOLTAGE
–
V IN
ex: CMOS 3.4 =
ex: CMOS 3.x =
M N P R S
C D E F H
2 3 4 5 6
V HYST
V DET
+
D 4
D
SOT-89-3
RELEASE
VOLTAGE
OR
RESET
VOLTAGE
DESCRIPTION OF OPERATION
operation, when V
In the case of the TC54V, this is an open-drain condition. If
and when the input falls below V
(Logic 0) to V
0.5V of V
the Electrical Characteristics section).
falls below the Minimum Operating Voltage, V
1.5V. Below this minimum operating voltage, the output is
undefined. During power-up or anytime V
V
V
will be in its active low state while V
( V
V
TC54VC, open-drain for TC54VN).
APPLICATIONS
Using the TC54 Voltage Detector .
IN
IN
+
DET
,
,
+
DET
= output (C = CMOS, N = Nch)
= first voltage digit (2-6)
= first voltage decimal (0-9)
= extra feature code : fixed : 0
= detecting accuracy
(MIN), at which time the output will become valid. V
(MIN), V
Refer to the Timing Chart below. In normal steady-state
The output, V
Refer to TelCom Semiconductor Application Note #2,
1 =
, the output will assume its inactive state. (High for
,
&
= V
SS
&
–
DET
1.0% (custom), 2 =
= 54_ (fixed)
at rated output current and input voltage. (See
OUT
SS
+ V
= assembly lot number
. Generally, V
will remain undefined until V
HYST
OUT
IN
> V
, will stay valid until the input voltage
). If and when the input rises above
–
DET
1
5
9
TO-92
10
, the output will be at a logic high.
2
6
11
3
7
OUT
DET
–
12
2.0% (standard)
4
8
, the output will pull down
can pull down to within
IN
(MIN) < V
IN
has fallen below
IN
rises above
IN
IN
(MIN), of
TC54
< V
4-281
DET
+
OUT
.
1
2
3
4
5
6
7
8