Sunnyvale, Calif.Supertex is phasing out its existing HV9910 LED driver in favor of an enhanced version, HV9910B, which will be a drop-in replacement for the existing HV9910.
The HV9910B universal high brightness LED driver differs from the older device in several ways. The max propagation delay specification from CS to GATE (tdelay) has improved from 300ns to 150ns. The older device was only guaranteed for one parameter (VCS(hi)) across temperature, while the enhanced device now guarantees many parameters across temperature.
The enhanced LED driver now also guarantees the following parameters: VOFFSET (offset voltage for LD comparator) and TOFF, MIN (the oscillator minimum off-time at Gate).
The VDD regulation specification for HV9910B has been further refined for the entire VIN range (for the VDD line and load regulation). The absolute maximum VDD is guaranteed to 12V.
The HV9910B will only be available in RoHS compliant/green packaging.
Datasheet: click here.
Supertex, 1-408-222-8888, www.supertex.com