Cissoid CHT-LDNS Series

Cissoid CHT-LDNS Series

The Helios CHT-LDNS high temperature, negative low-dropout linear voltage regulator series from Cissoid offers an output voltage range between -2.5V and -15V. These voltage regulators are compatible with high temperature environments with a typical operation temperature range from -55°C to +225°C. The CHT-LDNS series from Cissoid has a minimum dropout voltage of -2V  down to -20v with a maximum output current of 1A at 225°C, with a total accuracy of ±3% and a maximum output voltage  temperature drift of 80ppm.

  • High temperature, negative low-dropout linear voltage regulator
  • Voltage reference values of -2.5V, -3.3V, -5V, -5.5V, -9V, -10V, -12V, -13V and -15V
  • Dropout voltage of -2V down to -20V
  • Output voltage programmable by bonding option (bare die version)
  • Quiescent current consumption of 3mA
  • Maximum output current of 1A at 225°C (For -2.5V version, max current is 100mA)
  • Total accuracy of ±3%
  • Typical operating temperature range −55°C to +225°C (operational up to 300°C)
  • Maximum drift with temperature 80ppm
  • Validated at +225°C for 43800 hours (and still on-going)
  • Available in TO-254 package and bare die available on request

Typical Applications for the CHT-LDNS series from Cissoid include:

  • Well logging
  • Automotive
  • Aeronautics
  • Aerospace

The below table gives the full specifications of the Cission CHT-LDNS series:

Cissoid CHT-LDNS Specifications

1.|Vin| max=30V
2. For -2.5V version, max current is 100mA
3. Above +225°C (Tj), a minimum load current of few mA could be required
4. Max power dissipation depends on packaging
5. ppm are defined as [d(Vout)/d(T)]/Vout. For -15V mode, 40ppm corresponds to 600µV/°C
6. Defining "x" as the nominal voltage, the line regulation is better than x/5 mV/V for|Vin|>14V and better than x mV/V for |Vin|≤14V. For 2.5V output voltage version, line regulation is better than 8mV/V for |Vin|>14V and better than 3mV/V for |Vin|≤14V
7. This includes the packaging parasitic resistor
8. Defining "x" as the nominal voltage, the typical quiescent current at 2V dropout can be approximated as 2.95+x/13 in mA @ -55°C and 2.65+x/13 in mA at 225°C
9. Defining "x" as the nominal voltage, the minimum power supply rejection ratio is ...(tbd)...
10 Defining "x" as the nominal voltage, typical noise level is ...(tbd)...
11. short circuit current for 2.5V typical is 1A and max is 1.3A

Specifications
Accuracy±3%
Additional Features
  • High temperature, negative low-dropout linear voltage regulator
  • Maximum output current of 1A at +225°C
  • Quiescent current of 3mA
  • Validated at +225°C for 30,000 hours (and still on-going)
Drift with Temperature80 ppm (maximum)
Dropout Voltage-2V to -20V at 1A (for -2.5V version, max curent is 100mA)
Operating Temperature−55°C to +225°C (operational up to 300°C)
Package/SizeTO-254
Voltage Reference
  • -2.5V
  • -3.3V
  • -5V
  • -5.5V
  • -9V
  • -10V
  • -12V
  • -13V
  • -15V

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
PDF DocumentCissoid CHT-LDNS high temperature, low-dropout negative linear voltage regulator datasheet
PDF DocumentCissoid voltage regulator short-circuit protection and associated potential startup issue application note
PDF DocumentSelecting the correct Cissoid regulator depending on the application - application note
PDF DocumentCissoid power dissipation considerations during short circuit conditions application note

 

 

VIDEOS
Cissoid - High temperature and extended lifetime semiconductors

Since 2000, CISSOID is the leader in high temperature semiconductor solutions, delivering standard products and custom solutions for power management, power conversion and signal conditioning in extreme temperature and harsh environments. CISSOID provides high reliability products guaranteed from -55°C to +225°C and commonly used outside that range, from cryogenic lows to upper extremes.
VIDEOS
Cissoid - High temperature and extended lifetime semiconductors

Since 2000, CISSOID is the leader in high temperature semiconductor solutions, delivering standard products and custom solutions for power management, power conversion and signal conditioning in extreme temperature and harsh environments. CISSOID provides high reliability products guaranteed from -55°C to +225°C and commonly used outside that range, from cryogenic lows to upper extremes.

This product is available fully compliant to the RoHS EU directive 2002/95/EC.

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