Specifications

Inductance Range (mH)
Maximum Current (A)
0.1 0.2 0.5 1 2 3 4 5 7 10 20 30 50 100 200 400400
0
1
2
3
4
5
6
7
8
9
10
11
12
D026
T
A
= 25°C
T
A
= 125°C
TPS1H100-Q1
www.ti.com SLVSCM2A –OCTOBER 2014–REVISED JANUARY 2014
Feature Description (continued)
Figure 34. Maximum Current vs Inductance Range
8.3.4 Full Protections and Diagnostics
Table 1 is when DIAG_EN enabled. When DIAG_EN is low, current sense or ST is disabled accordingly. The
output is in high-impedance mode. Refer to Table 2 for details.
Table 1. Fault Table
ST CS
CONDITIONS IN OUT CRITERION Diagnostics Recovery
(Version A) (Version B)
L L H 0
Normal
H H H In linear region
Short to GND H L Current limit triggered. L V
CS,h
AUTO
Version A: Output current < I
ol,on
Open load
(1)
H H L (deglitch) Almost 0 AUTO
Version B: Judged by users
Short to battery
Reverse polarity
L H V
S
– V
OUT
< V
ol,off
L (deglitch) V
CS,h
(deglitch) AUTO
Recovery when
Thermal shutdown H TSD triggered L V
CS,h
temp < T
SD,rst
Thermal swing H T
sw
triggered L V
CS,h
AUTO
(1) Need external pullup resistor during off-state
Table 2. DIAG_EN Logic Table
DIAG_EN IN Condition Protections and Diagnostics
ON See Table 1
HIGH
OFF See Table 1
Diagnostics disabled, protection normal
ON
CS or ST is high Impedance
LOW
Diagnostics disabled, no protections
OFF
CS or ST is high impedance
Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 21
Product Folder Links: TPS1H100-Q1