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The company has established production bases in Shandong and Guangdong, where it conducts research and development and production of current and temperature protection devices.
E-Fuse MX6875 Electronic Fuse Current Limit Switch With Overvoltage Clamp Control For Notebook PC
| Hold Current: | Up To 5A | Overvoltage Protection: | Yes |
| Fuse Type: | Resettable | Package Type: | Surface Mount |
| Type: | Electronic Fuse | Application: | Overcurrent Protection |
| Highlight: | E-Fuse IC Current Limit Switch,Notebook PC E-Fuse IC,MX6875 E-Fuse IC | ||
Product Description
E-Fuse MX6875 Electronic Fuse Current Limit Switch With Overvoltage Clamp Control For Notebook PC
The MX6875 family of electronic fuses are highly integrated circuit protection and power management solutions in small packages. The device uses very few external components and offers multiple protection modes. They are effective against overloads, short circuits, voltage surges and excessive inrush currents. The MX6875 is a programmable current limit switch with input voltage range selection and output voltage clamping. Extremely low RDS(ON) of the integrated protection N- channel FET helps to reduce power loss during the normal operation.
Applications with special voltage ramp requirements can use a single capacitor to program dVdT to ensure the proper output ramp rate. Independent enable control allows the complicated system sequencing control.
FEATURES
♦ Operating input voltage range VIN: 3.3V~14.4V ♦Integrated 28mΩ-on MOS Field Effect Transistor ♦5.9V or 13.6V Fixed Overvoltage Clamp
♦ Up to 5A Adjustable Current ILMT
♦ Programmable OUT slew rate, undervoltage lockout (UVLO) and overvoltage lockout ♦Built-in thermal shutdown
♦ 10 Pin DFN3*3
APPLICATIONS
♦ Notebook PC
♦ I-pad Mini
♦ Server
♦ Service PC
Ordering information
| Part Number | Description |
| MX6875D33 | DFN3*3-10L |
| MPQ | 3000pcs |
Absolute maximum ratings
| Parameter | Value |
| VIN | -0.3 to 24V |
| OUT ,VCP | -0.3 to VIN+0.3 |
| IOUT | 5A |
| ILMT ,EN ,dVdT | -0.3V to 7V |
| Junction temperature | 150℃ |
| Storage temperature, Tstg | -55 to 150℃ |
| Leading temperature (soldering, 10secs) | 260℃ |
| ESD Susceptibility HBM | ±2000V |
Recommended operating condition
| Symbol | Range |
| VIN ,VCP | 3.3V to 14.4V |
| dVdT ,EN | 0V to 6V |
| ILMT | 0V to 3V |
| IOUT | 0A to 4A |
| Ambient temperature | -40~85℃ |
| Operating temperature | -40~125℃ |
TERMINAL ASSIGNMENTS
| PIN name | Description | |
| 1 ,2 ,3 | VIN | Input supply voltage |
4 |
VCP | Output clamp voltage selection based on the input voltage. Pull VCPpinto High by connecting a resistor to IN, or pull VCPpinto Low by connecting a resistor to ground, or float VCPpinto select different output clamping thresholds. Recommend to decoupling this pin with 0.1uF capacitor. |
| 5 | ILMT | A resistor from this pinto GND will set the overload and short circuit limit. |
| 6 | dVdT | Tie a capacitor from this pinto GND to control the ramp rate of OUT at device turn-on. |
| 7 | EN | This is an ENABLE pin. When pulled down, it shuts off the internal pass MOSFET. When pulled high, it enables the device. |
| 8 ,9 ,10 | OUT | Output of the device |
| GND | Ground | |
Electrical characteristics
| Symbol | Parameter | Test condition | Min | Typ. | Max | Unit |
| VIN PIN | ||||||
VUVLO | UVLO threshold, rising | VCP=High | 3.2 | 3.4 | 3.6 | V |
| VCP=Low or floating | 3.1 | 3.2 | 3.4 | V | ||
| UVLO threshold, falling UVLO threshold, falling | VCP=High | 7.8 | 8.0 | 8.2 | V | |
| VCP=Low or floating | 7.6 | 7.7 | 7.8 | V | ||
VOVC |
Over-voltage clamp | VCP=High, VIN = 8V, IOUT = 10mA | 5.4 | 5.9 | 6.4 | V |
| VCP = Low or floating , VIN=15V, IOUT = 10mA | 12.8 | 13.6 | 14.4 | V | ||
| IIN | Supply current | Enabled: EN = 2V | 0.9 | mA | ||
| IQ | EN = 0V | 12 | uA | |||
| EN | ||||||
| VENR | EN Threshold voltage, rising | 1.20 | 1.40 | 1.60 | V | |
| VENF | EN Threshold voltage, falling | 1.15 | 1.35 | 1.50 | V | |
| IEN | EN Input leakage current | 0V ≤ VEN ≤ 5V | -100 | 0.45 | 100 | nA |
| dVdT | ||||||
| IdVdT | dVdT charging current | 100 | 200 | 300 | nA | |
| RdVdT_disch | dVdT discharging resistance | 50 | 85 | 120 | Ω | |
| VdVdTmax | dVdT max capacitor voltage | 5 | V | |||
| GAINdVdT | dVdT to OUT gain | VOUT : VdVdT | 4.85 | V/V | ||
| tdVdT | Output ramp time | OUT from 0V to 12V, CdVdT = 0 | 1 | ms | ||
| OUT from 0V to 12V, CdVdT = 1nF | 10 | ms | ||||
| ILMT | ||||||
| IILMT | ILMT leakage current | 0.2 | 0.7 | 2.2 | μA | |
| VOPENILMT | ILMT open voltage | VILMT Rising, RILMT = OPEN | 2.5 | 3.5 | V | |
IOL |
Overload current limit | RILMT = 3.9kΩ | 4.8 | 5.2 | 5.6 | A |
| RILMT = 10kΩ | 2.5 | 2.8 | 3.1 | A | ||
| RILMT = 39kΩ | 0.8 | 1.0 | 1.2 | A | ||
| RILMT = 68kΩ | 0.4 | 0.6 | 0.8 | A | ||
| IOL R Short | Overload current limit | RILMT = 0Ω, Shorted Resistor Current Limit | 1.6 | A | ||
| IOL-R-Open | Overload current limit | RILMT = OPEN, Open Resistor Current Limit | 1.4 | A | ||
| ISCP | Short circuit protect current | 20 | A | |||
| RATIOFASTRIP | Fast-Trip comparator level : overload current limit | IFASTRIP : IOL | 160 | % | ||
| tFastOffDly | Fast-Trip comparator delay | IOUT > IFASTRIP to IOUT= 0 (Switch Off) | 1 | us | ||
| OUT | ||||||
| RDS (on) | FET ON resistance | 20 | 28 | 48 | mΩ | |
| IOUT-OFF-LKG | OUT leakage current in off state | VEN = 0V, VOUT Sourcing | 0 | 4 | 6 | μA |
| ROUT_DISCH | 55 | 70 | 110 | Ω | ||
| TSD | ||||||
| TSHDN | TSD Threshold, rising | 135 | ℃ | |||
| TSHDNhyst | TSD Hysteresis | -10 | ℃ | |||
