Description
2
Description
The TPS25921XEVM-637 enables full evaluation of the TPS25921X devices. The EVM supports two
versions (Auto-Retry and Latched) of the devices on two Channels (CH1 and CH2, respectively). Input
power is applied at J1 (CH1) and, J5 (CH2) while J2 and (CH1)/J6 (CH2) provide the output connection to
the load. Refer to the schematic in
, and EVM test setup in
D1/C1(CH1), D5/C9 (CH2) provide input protection for the TPS25921X (U1 and U2, respectively) while
D2/C2-C6 (CH1), D6/C10-C14 (CH2) provide output protection and inrush current demand from the load.
S1 and S2 allow U1 and U2, respectively, to be RESET or disabled. A power good (PG) indicator is
provided by D3, D7 for CH1 and CH2, respectively, and circuit faults can be observed with D4. Scaled
channel current can be monitored at TP10 and TP20 with a scale factor of approximately 1 V/A.
Table 1. TPS25921X EVM Options and Settings
UVLO
Current Limit
Fault Response
VIN
Part Number
EVM Function
OVP
No
Middle
Range
CH1
CH2
Lo Setting
CH1
CH2
Jumper
Setting
eFuse with
TPS25921XE
4.5 V–18
Auto-
Precision Current
4.2 V
4.2 V
17 V
0.5 A
1.5 A
1:00 AM
Latched
VM-637
V
retry
Limit
3
SLUUB50 – August 2014
TPS25921X-637EVM: Evaluation Module for TPS25921X
Copyright © 2014, Texas Instruments Incorporated
