Texas Instruments TPS2640EVM, Руководство пользователя

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2 Description
The TPS2640EVM enables full evaluation of the TPS2640 devices. The EVM supports HTSOP and QFN
versions of the devices on two channels (CH1 and CH2, respectively). Input power is applied at T1 (CH1) and T3
(CH2) while T2 (CH1) and T4 (CH2) provide an output connection to the load. See the schematic in
Figure 3-1
and the test setup in Figure 4-1 .
S1 and S2 allow U1 and U2 to RESET. A fault (FLTb) indicator is provided by D1 and D7 for CH1 and CH2,
respectively. Scaled current for each channel can be monitored at TP5 and TP14 with a scaling factor of
1.5 V / A.
Table 2-1. TPS2640EVM Options and Setting
Part Number EVM Function V
IN
Range
VIN UVLO VINOVP Current Limit
Output
Overvoltage Selectable Fault
Response
CH1 and
CH2
CH1 and
CH2
Minimum
Setting Maximum
Setting
TPS2640EVM
4.2-V to 42-V,
2.23-A Industrial eFuse
4.2 V–42 V 18.5 V 34.8V 0.2 A
(1)
2.23 A 38 V
Auto retry
Latch off
Circuit Breaker
(1) Minimum programmable current limit can be changed to 0.1 A by changing the R12 and R24 values to 120 kΩ on CH1 and CH2,
respectively.
www.ti.com Description
SLVUBX9 – OCTOBER 2020
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TPS2640EVM: Evaluation Module for TPS2640 3
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