CHT-HADES2P

GATE DRIVER PRIMARY SIDE IC

Product Image

CHT-HADES2P is a high-temperature, high reliability single chip primary side of a gate driver solution. It implements a current mode controlled DC-DC flyback converter for the generation of the on-board power supplies and the isolated data transmission from the external control interface to the 2 secondary sides and performs local fault management. This device has been designed in a way to reduce as much as possible the required number of external passive devices and to limit the requirement in high capacitor values (large footprint at high temperature). Its features a UVLO monitoring on the incoming power supply, a linear voltage regulator to generate the local 5V supply voltage and an on/off keying modulation of the data signal towards the secondary side. It offers wide voltage range for the input PWM signals (5 to 15V) and hysteresis to enhance immunity to system noise; it also features a spike filtering function on those PWM signals to prevent spurious turn-on/turn-off of the secondary gate drivers.

Key features

  • Operating temperature: -55°C to +225°C
  • Supply voltage: 10-16.5V
  • Configurable Under-Voltage Lockout
  • Integrated flyback DC-DC converter
    • Typ. 180 kHz switching freq.
    • Current mode control
    • Cycle by cycle current limit
    • Integrated switching transistor (Rdson: 0.8Ω)
    • Optional external switching transistor
  • Transceiver
  • Configurable local non-overlap management
  • Open-drain Dual Fault outputs
  • High voltage Dual PWM inputs
  • OOK modulated interface:
    • 2 TX and RX channels
  • Data rate:
    • up to 2 Mbits/s per TX channel
  • Propagation delay (TX):
    • typ. 40 ns
  • TX jitter (RMS cycle-2-cycle) :
    • max 6 ns
  • Hysteresis on PWM inputs
  • Fault generation with programmable automatic re-start timer
  • Configurable 500ns spike filter on PWM  paths
  • Common mode transient immunity:
    •  > 50KV/µS typ.
  • Package: Ceramic CQFP32


 
 

Applications

  • Ideally suited for high reliability markets like automotive, aerospace, railway, Oil & Gas.
  • Motor drivers: down-hole, electrical cars, railway, industrial pumps...
  • DC-DC converters and SMPS: battery chargers....
  • Inverters : Solar inverters, smart grid, EV and HEV, 3 phases inverter,...
  • Power conversion: uninterruptible power supplies, wind turbine...

Ordering information

Ordering reference Description Package Link
CHT-TIT968704-D-U

Gate Driver - Isolated - Primary

Potential Good Die Buy Here
CHT-TIT9687B-CQFP32-T

Gate Driver - Isolated - Primary

Ceramic QFP32 Buy Here

Documents

Type Title Link
Download CISSOID IC ALTIUM LIBRARY ZIP
Application note CISSOID IC ALTIUM LIBRARY INSTALLATION PDF
Datasheet CHT-HADES2P DATASHEET PDF