LM3880MF-1AENOPB Datasheet, PDF (2/22 Pages) Texas Instruments – LM3880/LM3880Q-1 Power Sequencer

LM3880, LM3880Q-1
SNVS451I – AUGUST 2006 – REVISED MARCH 2013
Connection Diagram
1 _VCC
2 _GND
3 _EN
FLAG1 ⁶
FLAG2 ⁵
FLAG3 ⁴
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Figure 1. Top View
SOT-23–6 Package
Pin #
1
2
3
4
5
6
Name
VCC
GND
EN
FLAG3
FLAG2
FLAG1
PIN DESCRIPTIONS
Function
Input supply
Ground
Precision enable pin
Open drain output #3
Open drain output #2
Open drain output #1
Sequence Number
1
2
3
4
5
6
Table 1. 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
Table 2. Timing Designator Table⁽¹⁾
Timing
Designator
AF
AE
AA
AB
AC
AD
t_d1
16ms
2ms
10ms
30ms
60ms
120ms
t_d2
16ms
2ms
10ms
30ms
60ms
120ms
t_d3
16ms
2ms
10ms
30ms
60ms
120ms
t_d4
16ms
2ms
10ms
30ms
60ms
120ms
(1) See timing diagrams for more information
t_d5
16ms
2ms
10ms
30ms
60ms
120ms
t_d6
16ms
2ms
10ms
30ms
60ms
120ms
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
2
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