Texas Instruments UCC21220EVM-009, User Manual

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Description
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4 SLUUBS2A – November 2017 – Revised December 2017
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Copyright © 2017, Texas Instruments Incorporated
UCC21220EVM-009
2.2 I/O Description
Table 1 lists the test points and jumpers.
(1)
The UCC21220 device does not have dead time control. Pin 6 of the UCC21220 is not connected internally. J4 and optional
trimmer potentiometer are included to facilitate comparison of the UCC21220 device with other pin-to-pin compatible ISO drivers
which may have dead time control.
Table 1. Test Points and Jumpers
Pins Description
TP1 Primary supply positive input
TP2 Primary supply negative input
TP3 VCC measurement point (main capacitor)
TP4 VCC measurement point (IC pins)
TP5 INA negative input (input side GND)
TP6 INB negative input (input side GND)
TP7 INA positive input
TP8 INB positive input
TP9 INA measurement point (IC pins)
TP10 INB measurement point (IC pins)
TP11 Input side GND (IC pins)
TP12 Disable pin input/measurement point
TP13 Dead time programming pin input/measurement point
(1)
TP14 VDDA measurement point (IC pins)
TP15 VSSA measurement point (IC pins)
TP16 A-channel supply positive input
TP17 A-channel output, measured after gate drive resistor
TP18 A-channel supply negative input
TP19 VDDB measurement point (IC pins)
TP20 VSSB measurement point (IC pins)
TP21 B-channel supply positive input
TP22 B-channel output, measured after gate drive resistor
TP23 B-channel supply negative input
J1-1 Connected to VCCI
J1-2 Connected to INA
J1-3 Connected to GND
J2-1 Connected to VCCI
J2-2 Connected to INB
J2-3 Connected to GND
J3-3 Connected to VCCI
J3-2 Connected to disable pin
J3-3 Connected to GND
J4-1 Connected to VCCI
J4-2 Dead time programming pin
(1)
J4-3 Connected to optional dead time programming potentiometer
(1)