3.2 Jumpers (Shunt) Setting
Table 3-2. 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 J1-INA and J1-GND set INA low
Option C:
Jumper on J1-INA and J1-VCCI 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 J2-INB and J2-GND set INB low
Option C:
Jumper on J2-INB and J2-VCCI set INB high
Option D:
Header J2-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 J3-EN/DIS and J3-GND
Option C:
Jumper on J3-EN/DIS and J3-VCCI
J-DT
Option A:
Jumper not installed, interlock with 8-ns dead time
Option B
Option B:
Jumper on J4-DT and J4-VCCI 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 J4-DT and J4-R2 set the dead time by DT (in ns) = R
DT
(in kΩ) × 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 4-1. 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
Features
4
Using the UCC21520EVM-286, UCC20520EVM-286, UCC21521CEVM-286,
and UCC21530EVM-286
SLUUBG8C – NOVEMBER 2018 – REVISED OCTOBER 2021
Copyright © 2021 Texas Instruments Incorporated
