Texas Instruments BoosterPack BOOSTXL-IOLINKM-8 EVM User Manual page 5

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1.4.2 TPS26631
The TPS2663x devices are easy to use, positive 60 V and 6-A eFuse with a 31-mΩ integrated FET. It features
a B-FET driver to control an external N-channel FET in the system designs that require protection from
input reverse polarity faults and reverse current blocking. The device incorporates robust protection features
that simplify system designs requiring protection during system tests like IEC61000-4-5 industrial surge tests.
The device features an adjustable output power limiting (PLIM) functionality that simplifies the system design
requiring compliance in accordance to the standards like IEC61010-1 and UL1310. Additional protection features
include adjustable overcurrent protection, fast short circuit protection, output slew rate control, overvoltage
protection and undervoltage lockout. For system status monitoring and downstream load control, the device
provides fault and a precise current monitor output. PGOOD can be used for enable and disable control of
the downstream DCDC converters. The MODE pin allows flexibility to configure the device between the two
current-limiting fault responses (latch off and auto-retry).
IN
B_GATE
DRV
IN_SYS
V
SEL_UVLO
+
UVLO
±
V
SEL_OVP
+
OVP
±
4.17V
2 µA
dVdT
14 Ÿ
GND
SHDNb
TPS26630 & TPS26631
SLLU357 – MAY 2023
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IN_SYS
20 µA
Charge
Pump (12 V)
+
PORb
4.3 V
4.2 V
+
UVLOb
1.2 V
1.12 V
I = I P = P
(OUT) (OL) (OUT) (LIM)
162 msec
Timeout
timer
Shutdown
+
OVP
1.2 V
SHDNb
1.12 V
I = I
(OUT) (OL)
25x
I > I
(OUT) (CB)
Timeout
25.5 msec
timer
*TPS26631
Only
UVLOb
PORb
TSD
1.2V
SHDNb 2.7V
1.12V
0.8 V
+
SHDN PGTH
Figure 1-2. TPS26631 Functional Block Diagram
Copyright © 2023 Texas Instruments Incorporated
+
IN_SYS -15mV
±
+57mV
SWEN
REVERSE
TSD
Thermal
OLR
Ramp Control
* Only for Latch Mode
SET
S Q
R Q
CLR
PORb
Fault Latch
OLR
Gate Enhanced (HS_FET)
1.3msec
+
2 µs
SHDNb
Fast_Charge
_EN
Evaluation Module Overview
31 PŸ
xx
Current
Sense
Fast_Charge
_EN X27.9 µ
CP
Gate Control Logic
5 V
Power Limit Amp
Current Limit Amp
Fast-Trip Comp
(Threshold= 45A)
Open/ Short
detect
SWEN
65 Ÿ
1.2 0HJ Ÿ
3V
Overload fault response
(Auto-Retry/Latch-off)
select detection
SET
S Q
65 Ÿ
R Q
CLR
BOOSTXL-IOLINKM-8 EVM User's Guide
OUT
IMON
ILIM
FLT
MODE
PGOOD
5