The Olympus series of ICs is the industry’s smallest and robust integrated system protection solutions. The MAX17612A/MAX17612B/MAX17612C adjustable overvoltage and overcurrent protection devices are ideal to protect systems against positive and negative input voltage faults up to +60V and -65V, and feature low 1.42Ω (typ) RON FETs.
The adjustable input overvoltage protection range is 5.5V to 60V and the adjustable input undervoltage protection range is 4.5V to 59V. The input overvoltage-lockout (OVLO) and undervoltage-lockout (UVLO) thresholds are set using external resistors. Additionally, the devices offer an internal input undervoltage threshold at 4.2V (typ).
The devices feature programmable current-limit protection up to 250mA; hence, controlling the inrush current at startup while charging high capacitances at the output. Current-limit threshold is programmed by connecting a resistor from the SETI pin to GND. When the device current reaches the programmed threshold, the device prevents further increases in current by modulating the FET resistance. The devices can be programmed to behave in three different ways under current-limit condition: Autoretry, Continous, or Latch-off modes. The voltage appearing on the SETI pin is proportional to the instantaneous current flowing through the device and is read by an ADC.
MAX17612A and MAX17612C block current flowing in the reverse direction (i.e., from OUT to IN) whereas MAX17612B allows current flow in the reverse direction. The devices feature thermal shutdown protection against excessive power dissipation.
The devices are available in a small, 10-pin (3mm x 3mm) TDFN-EP package. The devices operate over the -40°C to +125°C extended temperature range.
|Internal Pwr. MOSFETs||RON|
|Current Limit Accuracy|
|Fault Response||Reverse Current Protect.||Fault Indicator||Oper. Temp.|
|MAX17612A||1||4.5||60||NMOS+NMOS||1420||0.01||0.25||5||Latchoff||Yes||Yes||-40 to +125|
|See All Overvoltage/Overcurrent Protectors with Internal MOSFETs (26)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|Evaluation Board||9972||MAX17612CEVKIT Evaluation Kit for the MAX17612C 4.5V to 60V, 250mA, Current-Limiter with Reverse Protection|
|Evaluation Board||9970||MAX17612BEVKIT Evaluation Kit for the MAX17612B 4.5V to 60V, 250mA, Current-Limiter with OV, UV Protection|
|Evaluation Board||9969||MAX17612AEVKIT Evaluation Kit for the MAX17612A 4.5V to 60V, 250mA, Current-Limiter with OV, UV, and Reverse Protection|