LM5050-1 High Side OR-ing FET Controller | TI.com

LM5050-1
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High Side OR-ing FET Controller

 

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Description

The LM5050-1/-Q1 High Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This ORing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.

The LM5050-1/-Q1 controller provides charge pump gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET when current flows in the reverse direction. The LM5050-1/-Q1 can connect power supplies ranging from 5 V to 75 V and can withstand transients up to 100 V.

Features

  • Available in Standard and AEC-Q100 Qualified
    Versions LM5050Q0MK-1 (up to 150°C TJ) and
    LM5050Q1MK-1 (up to 125°C TJ)
  • Wide Operating Input Voltage Range, VIN: 1 V to
    75 V (VBIAS required for VIN < 5 V)
  • 100-V Transient Capability
  • Charge Pump Gate Driver for External N-Channel
    MOSFET
  • Fast 50-ns Response to Current Reversal
  • 2-A Peak Gate Turnoff Current
  • Minimum VDS Clamp for Faster Turnoff
  • Package: SOT-6 (Thin SOT-23-6)

Parametrics

Compare all products in Ideal diode/ORing controllers Email Download to Excel
Part number Order Vin (Min) (V) Vabsmin (Min) (V) Vin (Max) (V) Vabsmax (Max) (V) Iq (Typ) (mA) Iq (Max) (mA) FET IGate source (Typ) (uA) IGate source (Max) (uA) IGate sink (Typ) (mA) IGate pulsed (Typ) (A) Features Operating temperature range (C) Package Group Approx. price (US$) IReverse (Typ) (uA) VSense reverse (Typ) (mV) Design support Rating Package size: mm2:W x L (PKG) Channel(s) controlled (#) VGS (Max) (V)
LM5050-1 Order now 5     -0.3     75     100     0.4     0.72     External     31     41     2.8     2.8     AUX Input
Linear Control    
-40 to 125     SOT-23-THIN | 6     0.87 | 1ku         -28 /-41     EVM
Simulation Model    
Catalog     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)     1     14    
LM5050-2 Order now 6     -0.3     75     100     0.4     0.72     External     32     45     2.8     2.8     FET Test
Linear Control    
-40 to 125     SOT-23-THIN | 6     0.87 | 1ku         -28 /-41     EVM
Reference Design
Simulation Model    
Catalog     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)     1     14.7