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E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
Specifications
Brand Name :
RFan
Model Number :
MX5069
Certification :
UL
Place of Origin :
China
MOQ :
3000
Price :
negotiable
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Delivery Time :
2-4weeks
Reverse Polarity Protection :
Yes
Manufacturer :
Multiple manufacturers
Overcurrent Protection :
Yes
Operating Temperature Range :
-40°C to +125°C
Overvoltage Protection :
Yes
Package Type :
Surface Mount
Short Circuit Protection :
Yes
Description

E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection For Adapter Powered Devices

E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection

The MX25947 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, excessive inrush currents and reverse currents. The current limit level can be programmed with an external resistor. An internal circuit will off the internal FET to protect overvoltage. Applications with special voltage ramp requirements can use a single capacitor to program dVdT to ensure the proper output ramp rate.

FEATURES

♦Operating input voltage range VIN: 4.5V~24V

♦Integrated 28mΩ-on MOS Field Effect Transistor ♦ 1.34V Reference for Overvoltage protection

♦ 1A to 5A Adjustable Current ILIMIT

♦Programmable OUT slew rate, undervoltage lockout (UVLO)

♦Built-in thermal shutdown

♦ 10 Pin DFN3*3 & ESOP8L

APPLICATIONS

• Adapter powered devices

• Hard Disk Drives (HDD) and Solid State Drives (SSD)

• Set-top box

• Server/auxiliary (AUX) power

• Fan control

• PCI/PCIe cards

Ordering information

Part Number Description
MX25947D33 DFN3*3-10L
MX25947ES ESOP-8L
MPQ 3000pcs

Package dissipation rating

Package RθJA (℃/W)
DFN3*3-10L 50
ESOP-8L 60

Absolute Maximum ratings

Parameter Value
VIN -0.3 to 30V
VIN (10 ms Transient) 33V(max)
OUT -0.3 to VIN+0.3
IOUT 5A
ILIM ,EN/UVLO ,dVdT -0.3V to 7V
BFET -0.3V to 40V
Junction temperature 150℃
Storage temperature, Tstg -55 to 150℃
Leading temperature (soldering, 10secs) 260℃
ESD Susceptibility HBM ±2000V

Stresses beyond those listed in Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Functional operation of the device at any conditions beyond those indicated in the Recommended Operating Conditions section is not implied.

Recommended operating condition

Symbol Range
VIN 4.5V to 24V
dVdT ,EN/UVLO ,OVP 0V to 6V
ILIM 0V to 3V
IOUT 0A to 4A
Ambient temperature -40~85℃
Operating temperature -40~125℃

TERMINAL ASSIGMENTS

E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection

PIN NO. PIN name Description
DFN3*3 ESOP8
1 5 dVdT Tie a capacitor from this pinto GND to control the ramp rate of OUT at device turn-on.

2

6

EN/UVLO

This is a dual function control pin. When used as an ENABLE pin and pulled down, it shuts off the internal pass MOSFET.

As an UVLOpin, it can be used to program different UVLOtrip point via external resistor divider.
3~5 7 ,8 VIN Input supply voltage
6~8 1 ,2 OUT Output of the device
9 3 ILIM A resistor from this pinto GND will set the overload and short circuit limit.
10 4 OVP External over voltage protection via resistor divider. The reference voltage is 1.34V (typical).
Thermal Pad GND Ground

Electrical characteristics

( VIN=12V, VEN/UVLO=2V, RILIM = 100kΩ, CdVdT = OPEN. TA=25℃, unless otherwise noted)

Symbol Parameter Test condition Min Typ. Max Unit
VIN PIN
VUVO UVLO threshold, rising 4.0 4.2 4.5 V
UVLO threshold, falling 3.8 4.0 4.3 V
IQON Supply current Enabled: EN/UVLO = 2V 0.5 0.6 0.7 mA
IQOFF EN/UVLO = 0V 0.10 0.18 0.25
EN/UVLO
VENR EN Threshold voltage, rising 1.30 1.34 1.38 V
VENF EN Threshold voltage, falling 1.25 1.30 1.35 V
IEN EN Input leakage current 0V ≤ VEN ≤ 5V -100 0 100 nA
dVdT
IdVdT dVdT Charging current 0.2 μA
RdVdT_disch dVdT Discharging resistance 60 80 100 Ω
VdVdTmax dVdT max capacitor voltage 5.5 V
GAINdVdT dVdT to OUT gain 4.85 V/V
ILIM
IILIM ILIM Bias current 0.5 μA

IOL

Overload current limit

 RILIM = 4.3kΩ, VVIN-OUT = 1V 4.6 5 5.6 A
RILIM = 10kΩ, VVIN-OUT = 1V 2.5 3.0 3.5 A
RILIM = 51kΩ, VVIN-OUT = 1V 1.0 1.5 2.0 A
RILIM = 100kΩ, VVIN-OUT = 1V 0.8 1.0 1.5 A
IOL R Short Overload current limit RILIM = 0Ω, Shorted Resistor Current Limit 1.8 A
Symbol Parameter Test condition Min Typ. Max Unit
IOL-R-Open Overload current limit RILIM = OPEN, Open Resistor Current Limit 1.6 A

ISCL

Short-circuit current limit

 RILIM = 5kΩ, VVIN-OUT = 12V 4.0 4.25 4.5

A
RILIM = 10kΩ, VVIN-OUT = 12V 2.76 2.88 3.0
RILIM = 51kΩ, VVIN-OUT = 12V 1.06 1.14 1.22
RILIM = 100kΩ, VVIN-OUT = 12V 0.86 0.94 1.0
RATIOFASTRIP Fast-Trip comparator level w.r.t. overload current limit IFASTRIP : IOL 160 %
VOpenILIM ILIM Open resistor detect threshold VILIM Rising, RILIM = OPEN 3.2 V
RDS (on) FET ON resistance 21 28 37 mΩ
IOUT-OFF-LKG OUT Bias current in off state VEN/UVLO = 0V, VOUT = 0V (Sourcing) 3 μA
IOUT-OFF-SINK VEN/UVLO = 0V, VOUT = 300mV (Sinking) 10 μA
OVP
VREF_OVP External ovp threshold OVP rising 1.30 1.34 1.38 V
VOVPF OVP hysteresis 1.25 1.30 1.35 V
TSD
TSHDN TSD Threshold, rising 131 ℃
TSHDNhyst TSD Hysteresis -15 ℃
Timing Requirements
TON Turn-on delay EN/UVLO → H to IIN = 100mA, 1A resistive load at OUT 900 μs
tOFFdly Turn Off delay 20 μs
dVdT
tdVdT

Output ramp time

 EN/UVLO → H to OUT = 11.7V, CdVdT = 0 1 ms
EN/UVLO → H to OUT = 11.7V, CdVdT = 1nF 10 ms
ILIM
tFastOffDly Fast-Trip comparator delay IOUT > IFASTRIP to IOUT= 0 (Switch Off) 350 ns

E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection

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Product Detail
Brand Name :
RFan
Model Number :
MX5069
Certification :
UL
Place of Origin :
China
MOQ :
3000
Price :
negotiable
Contact Supplier
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection
E-Fuse MX25947 24V Electronic Fuse With Adjustable Overvoltage Protection

Yantai Rongfan Electronic Technology Co., Ltd

Verified Supplier
1 Years
yantai
Since 2004
Business Type :
Manufacturer, Distributor/Wholesaler
Main Products :
PPTC Resettable Fuse, Surface Mount Fuse, NTC Thermistor
Total Annual :
3000000-4000000
Employee Number :
140~180
Certification Level :
Verified Supplier
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