參數(shù)資料
      型號: PT4411A
      廠商: Texas Instruments, Inc.
      英文描述: 100-Watt 48-V Input Isolated DC/DC Converter
      中文描述: 100瓦48 - V輸入隔離DC / DC轉(zhuǎn)換器
      文件頁數(shù): 4/10頁
      文件大?。?/td> 243K
      代理商: PT4411A
      For technical support and more information, see inside back cover or visit www.ti.com
      Note A:
      All data listed in the above graphs has been developed from actual products tested at 25 °C. This data is considered typical data for the DC-DC Converter.
      Note B:
      SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature.
      PT4412
      48 V
      100-Watt 48-V Input
      Isolated DC/DC Converter
      PT4412 Characterstic Data
      Efficiency vs Load Current; V
      in
      =48 V
      (See Note A)
      Output Ripple vs Load Current; V
      in
      =48 V
      (See Note A)
      Power Dissipation vs Load Current; V
      o
      =1.5 V
      (See Note A)
      Safe Operating Area; V
      in
      =48 V
      (See Note B)
      20
      30
      40
      50
      60
      70
      80
      90
      0
      5
      10
      15
      20
      25
      30
      Iout (A)
      A
      °
      C
      300LFM
      200LFM
      100LFM
      Nat conv
      Airflow
      50
      60
      70
      80
      90
      100
      0
      5
      10
      15
      20
      25
      30
      Iout (A)
      E
      1.75V
      1.5V
      1.2V
      1.05V
      V
      OUT
      0
      10
      20
      30
      40
      50
      0
      5
      10
      15
      20
      25
      30
      Iout (A)
      R
      1.75V
      1.5V
      1.2V
      1.05V
      V
      OUT
      0
      2
      4
      6
      8
      10
      12
      0
      5
      10
      15
      20
      25
      30
      Iout (A)
      P
      75.0V
      60.0V
      48.0V
      36.0V
      V
      IN
      SLTS170C - JULY 2002 - REVISED JUNE 2003
      PT4412 Specifications
      (Unless otherwise stated, T
      a
      =25 °C, V
      in
      =48 V, V
      o
      =1.5 V, C
      o
      =0 μF, and I
      o
      =I
      o
      max)
      PT4412
      Typ
      Characteristic
      Symbol
      Conditions
      Min
      Max
      Units
      Output Current
      Input Voltage Range
      Set Point Voltage Tolerance
      Temperature Variation
      Line Regulation
      Load Regulation
      Total Output Voltage Variation
      I
      o
      V
      in
      V
      o
      tol
      Reg
      temp
      Reg
      line
      Reg
      load
      V
      o
      tot
      Over V
      in
      range
      Over I
      o
      Range
      0
      36
      48
      ±0.6
      (1)
      ±0.8
      ±1
      ±1
      30
      75
      A
      V
      %V
      o
      %V
      o
      mV
      mV
      –40° >T
      a
      > +85 °C
      Over V
      in
      range
      Over I
      o
      range
      Includes set-point, line, load,
      –40° >T
      a
      > +85 °C
      I
      o
      =15 A
      20 MHz bandwidth
      1 A/μs load step, 50 % to 75 % I
      o
      max
      V
      o
      over/undershoot
      Shutdown, followed by auto-recovery
      Output shutdown and latch off
      Over V
      in
      range
      ±1.6
      ±3
      %V
      o
      Efficiency
      V
      o
      Ripple (pk-pk)
      Transient Response
      η
      V
      r
      t
      tr
      V
      tr
      I
      TRIP
      OVP
      o
      UVLO
      225
      86.5
      30
      75
      ±5
      38
      125
      275
      32
      325
      %
      mV
      pp
      μs
      %V
      o
      A
      %V
      o
      kHz
      V
      Over-Current Threshold
      Output Over-Voltage Protection
      Switching Frequency
      Under-Voltage Lockout
      Remote On/Off Input
      Input High Voltage
      Input Low Voltage
      Input Low Current
      Standby Input Current
      Internal Input Capacitance
      External Output Capacitance
      Isolation Voltage
      Capacitance
      Resistance
      Notes:
      (1) If (–)Remote Sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy.
      (2) The Remote On/Off input has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A discrete MOSFET or
      bipolar transistor is recommended to control this input. The open-circuit voltage is typically 5 V. See application notes for interface considerations.
      Referenced to –V
      in
      V
      IH
      V
      IL
      I
      IL
      I
      in
      standby
      C
      in
      C
      out
      4.5
      –0.2
      0
      1500
      10
      –0.3
      2
      1.4
      Open
      (2)
      +0.8
      5,000
      V
      mA
      mA
      μF
      μF
      Vdc
      pF
      M
      pins 1 & 2 connected
      Between +V
      o
      and –V
      o
      Input-output & input-case
      Input-output
      Input-output
      1200
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