LM3880_14 Datasheet, PDF (4/20 Pages) Texas Instruments – Power Sequencer

LM3880, LM3880Q
SNVS451H – AUGUST 2006 – REVISED JULY 2011
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Electrical Characteristics
Specifications with standard typeface are for T_J = 25°C, and those in bold face type apply over the full Operating Temperature
Range (T_J = -40°C to +125°C). Minimum and Maximum limits are guaranteed through test, design or statistical correlation.
Typical values represent the most likely parametric norm at T_J = 25°C and are provided for reference purposes only. V_CC =
3.3V, and limits apply to all timing options, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
(1)
(2)
(1)
I_Q
Open Drain Flags
I_FLAG
V_OL
Power Up Sequence
t_d1
Operating Quiescent current
FLAGx Leakage Current
FLAGx Output Voltage Low
Timer delay 1 accuracy
t_d2
Timer delay 2 accuracy
t_d3
Timer delay 3 accuracy
Power Down Sequence
t_d4
Timer delay 4 accuracy
t_d5
Timer delay 5 accuracy
t_d6
Timer delay 6 accuracy
Timing Delay Error
(t_d(x) – 400 µs) / t_d(x+1) Ratio of timing delays
t_d(x) / t_d(x+1)
Ratio of timing delays
ENABLE Pin
V_EN
I_EN
EN pin threshold
EN pin pull-up current
V_FLAGx = 3.3V
I_FLAGx = 1.2mA
2ms Timing Option
2ms Timing Option
2ms Timing Option
2ms Timing Option
2ms Timing Option
2ms Timing Option
For x = 1 or 4
For x = 1 or 4, 2ms option
For x = 2 or 5
For x = 2 or 5, 2ms option
V_EN = 0V
25
80
µA
1
20
nA
0.4
V
-15
15
%
-20
20
-15
15
%
-20
20
-15
15
%
-20
20
-15
15
%
-20
20
-15
15
%
-20
20
-15
15
%
-20
20
95
105
%
90
110
95
105
%
90
110
1.0
1.25
1.4
V
7
µA
(1) Limits are 100% production tested at 25°. Limits over the operating temperature range are guaranteed through correlation using
Statistical Quality Control (SQC) methods. The limits are used to calculate National's Average Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely parametric norm.
4
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