Texas Instruments UCC20520EVM286, Руководство пользователя

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6 SLUUBG8B – June 2016 – Revised November 2018
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Using the UCC21520EVM-286, UCC20520EVM-286, UCC21521CEVM-286,
and UCC21530EVM-286
3.3 Jumpers (Shunt) Setting
Table 2. Jumpers Setting
JACK Jumper Setting Options FACTORY SETTING
J-INA
Option A:
Jumper not installed, INA/PWM signal provided by external signal and this
pin is default low if left open
Option A
Option B: Jumper on J-INA-2 and J-INA-1 set INA low
Option C: Jumper on J-INA-2 and J-INA-3 set INA high
J-INB
Option A:
Jumper not installed, INB signal provided by external signal and this pin is
default low if left open
Option A for
UCC21520EVM-286,
UCC21521CEM-286 and
UCC21530EVM-286;
Option D for
UCC20520EVM-286
Option B: Jumper on J-INB-2 and J-INB-1 set INB low
Option C: Jumper on J-INB-2 and J-INB-3 set INB high
Option D: Header J-INB is not installed, and no connection on the device under test
J-DIS or J-
DIS/EN
Option A: Jumper not installed, the devices under test are enabled when left open on
enable/disable pin Option C for
UCC21520EVM-286 and
UCC20520EVM-286;
Option B for
UCC21521CEVM-286 and
UCC21530EVM-286
Option B: Jumper on J-DIS-2 and J-DIS-1 or J-DIS/EN-2 and J-DIS/EN-1
Option C: Jumper on J-DIS-2 and J-DIS-3 or J-DIS/EN-2 and J-DIS/EN-3
J-DT
Option A: Jumper not installed, interlock with 8-ns dead time
Option B
Option B:
Jumper on J-DT-2 and J-DT-1 allows driver output overlap or driver output
follows PWM input for UCC21520EVM and UCC21521CEVM. The dead
time will be around 0 ns in this option for UCC20520EVM
Option C:
Jumper on J-DT-2 and J-DT-3 set the dead time by DT (in ns) = R
DT
(in k
Ω
)
× 10. For better noise immunity and dead-time matching, TI recommends
to parallel a 2.2-nF or above bypassing capacitor from DT pin to GND.
4 Electrical Specifications
Table 3. UCC2x5xxEVM-286 Electrical Specifications
DESCRIPTION MIN TYP MAX UNIT
V
CCI
Primary-side power supply 3 18 V
V
DDA,
V
DDB
Driver output power supply for UCC21520EVM-286 and
UCC20520EVM-286
9.2 25 V
Driver output power supply for UCC21521CEM-286 and
UCC21530EVM 14.7 25 V
F
S
Switching frequency 0 5 MHz
T
J
Operating junction temperature range –40 125 °C