PCIM: 2.3kV gate driver has two-level slew control for IGBTs and mosfets

PCIM: 2.3kV gate driver has two-level slew control for IGBTs and mosfets

Branded ‘2L-SRC Compact’ and numbered ‘1ED32xx’, 10 and 18A versions are available (see table), with or without Miller clamps.

Dual slew-rates are controlled by a single pin (/INF).

All members of the family have two complete output stages: ‘OUT’ is always active, while the other output operates at the same time only when /INF is held low. In ‘standard’ versions of the IC (see table below) this second output operates in synch with the main output, but only for turn-on with Miller-clamped versions.

PCIM: 2.3kV gate driver has two-level slew control for IGBTs and mosfets

“The 1ED32xx family optimises the gate driver circuit to balance the reduction of dv/dt and electromagnetic interference during start-up and light-load operation, as well as minimises switching losses during high-load operation,” according to the company. “It also includes a Miller clamp that is highly recommended for power switches that use 0V turn-off to avoid parasitic turn-on.” – The output side supports negative gate voltage operation, which helps to avoid a parasitic turn-on during off-state.

PCIM: 2.3kV gate driver has two-level slew control for IGBTs and mosfets2L-SRC Compact gate drivers come in an 8mm wide-bodied package

Two power supplies are needed: typically 3.3 to 15V (specifications are at 5V) on the input side and nominally 15V on the output side. Independent under-voltage lock-outs operate at ~2.75 and ~11.3V respectively.

Isolation is certified to UL 1577 and VDE 0884-11  – VDE is reinforced to 1,767 V.

typical peak output configuration slew control
1ED3240MC12H 10A standard turn-on and turn-off
1ED3241MC12H 18A standard turn-on and turn-off
1ED3250MC12H 10A Miller clamp turn-on
1ED3251MC12H 18A Miller clamp turn-on

Applications are foreseen in the 1,700V industrial drives as well as solar power converters, uninterruptible power supplies and electric vehicle charging.

The evaluation boards are in the pieline: EVAL-1ED3241MX12H and EVAL-1ED3251MX12H.

Infineon’s gate driver portfolio will be showcased at the Virtual Power Conference alongside PCIM Europe digital days.