SE555-SP Datasheet, PDF (2/18 Pages) Texas Instruments – QML CLASS V PRECISION TIMER

SE555-SP
SGLS401 – FEBRUARY 2010
www.ti.com
T_A
–55°C to 125°C
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽²⁾
ORDERABLE PART NUMBER
CDIP - JG
Tube of 50
5962-9855501VPA
TOP-SIDE MARKING
5962-9855501VPA
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
RESET
Low
High
High
High
Table 1. FUNCTION TABLE
TRIGGER
VOLTAGE ⁽¹⁾
Irrelevant
<1/3 V_CC
>1/3 V_CC
>1/3 V_CC
THRESHOLD
VOLTAGE ⁽¹⁾
Irrelevant
Irrelevant
>2/3 V_CC
<2/3 V_CC
OUTPUT
DISCHARGE
SWITCH
Low
On
High
Off
Low
On
As previously established
(1) Voltage levels shown are nominal.
FUNCTIONAL BLOCK DIAGRAM
V_CC
8
CONT
6
THRES
5 _{ÎÎÎÎ}
RESET
4
ÎÎÎ _R1
R
1^ÎÎÎ
S
ÎÎÎ
2
TRIG
ÎÎÎ
3
OUT
1
GND
A. RESET can override TRIG, which can override THRES.
7
DISCH
2
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