LM3880_14 Datasheet, PDF (2/20 Pages) Texas Instruments – Power Sequencer

LM3880, LM3880Q
SNVS451H – AUGUST 2006 – REVISED JULY 2011
Connection Diagram
1 _VCC
2 _GND
3
EN
FLAG1 ⁶
FLAG2 ⁵
FLAG3 ⁴
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Figure 1. Top View
SOT23–6 Package
Pin #
1
2
3
4
5
6
Name
VCC
GND
EN
FLAG3
FLAG2
FLAG1
Table 1. Pin Descriptions
Function
Input supply
Ground
Precision enable pin
Open drain output #3
Open drain output #2
Open drain output #1
Nomenclature
LM3880 Q
MF - 1 AA
Sequence Number
1
2
3
4
5
6
Base Part Number
Timing designator
Sequence designator
Package Type
MF: 1000 Units, Tape & Reel
MFX: 3000 Units, Tape & Reel
MFE: 250 Units, Tape & Reel
AEC - Q100 Grade
Table 2. Sequence Designator Table
Power Up
1-2-3
1-2-3
1-2-3
1-2-3
1-2-3
1-2-3
Flag Order
Power Down
3-2-1
3-1-2
2-3-1
2-1-3
1-3-2
1-2-3
Timing
Designator
AF
AE
AA
AB
AC
AD
t_d1
16ms
2ms
10ms
30ms
60ms
120ms
2
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Table 3. Timing Designator Table
t_d2
t_d3
t_d4
t_d5
t_d6
16ms
2ms
10ms
30ms
60ms
120ms
16ms
2ms
10ms
30ms
60ms
120ms
16ms
2ms
10ms
30ms
60ms
120ms
16ms
2ms
10ms
30ms
60ms
120ms
16ms
2ms
10ms
30ms
60ms
120ms
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