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85 W Dual Complementary-Output DC/DC Converter

Product details

Vin (min) (V) 36 Vin (max) (V) 75 Vout (min) (V) 3.31 Vout (max) (V) 6 Iout (max) (A) 8.5 Features PMBus Operating temperature range (°C) -40 to 85 Rating Catalog
Vin (min) (V) 36 Vin (max) (V) 75 Vout (min) (V) 3.31 Vout (max) (V) 6 Iout (max) (A) 8.5 Features PMBus Operating temperature range (°C) -40 to 85 Rating Catalog
DIPMODULE (ERT) 8 2813.748 mm² 57.4 x 49.02 DIPMODULE (ERU) 8 2813.748 mm² 57.4 x 49.02
  • Dual Complementary Outputs (±5 V)
  • Input Voltage Range: 36 V to 75 V
  • On/Off Enable for Sequencing
  • 1500 VDC Isolation
  • Over-Current Protection
  • Over-Temperature Shutdown
  • Under-Voltage Lockout
  • Temp Range: –40 to +85°C
  • Fixed Frequency Operation
  • Synchronizes with PTB4850x
  • Powers line driver ICs for AC-7 and other xDSL chipsets
  • Safety Approvals: (Pending)
       EN60950
       UL/cUL60950

  • Dual Complementary Outputs (±5 V)
  • Input Voltage Range: 36 V to 75 V
  • On/Off Enable for Sequencing
  • 1500 VDC Isolation
  • Over-Current Protection
  • Over-Temperature Shutdown
  • Under-Voltage Lockout
  • Temp Range: –40 to +85°C
  • Fixed Frequency Operation
  • Synchronizes with PTB4850x
  • Powers line driver ICs for AC-7 and other xDSL chipsets
  • Safety Approvals: (Pending)
       EN60950
       UL/cUL60950

The PTB48600A is one of a series of isolated DC/DC converter modules that provide a pair of complementary supply voltages for powering line-driver ICs in xDSL telecom applications. These modules operate from a standard telecom (-48 V) central office supply and can provide up to a 85 W of power in a balanced load configuration.

The A-suffix module (±5 V) is designed to power the line driver ICs for the AC-7 ADSL chipset. It will also power any other applications that require a complementary supply with relatively balanced loads. The two compliementary outputs can also be configured as a single output of twice the voltage magnitude. As an example, the outputs of a PTB48600A can be adjusted up to ±6 V, and configured as a single 12-V output.

The PTB48600 includes an output "on/off" enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO). The control inputs, "Enable" and "Sync In," are compatible with the "EN Out" and "Sync Out" signals of the PTB4850x DC/DC converter. This allows the power-up and switching frequency of a PTB48600 module to be directly controlled from a PTB48500. Together the PTB48500 and PTB48600 converters meet all the system power and sequencing requirements of the AC-7 ADSL chipset.

The PTB48600 employs double-sided surface mount construction. The package options include both through-hole and surface mount pin configurations.

The PTB48600A is one of a series of isolated DC/DC converter modules that provide a pair of complementary supply voltages for powering line-driver ICs in xDSL telecom applications. These modules operate from a standard telecom (-48 V) central office supply and can provide up to a 85 W of power in a balanced load configuration.

The A-suffix module (±5 V) is designed to power the line driver ICs for the AC-7 ADSL chipset. It will also power any other applications that require a complementary supply with relatively balanced loads. The two compliementary outputs can also be configured as a single output of twice the voltage magnitude. As an example, the outputs of a PTB48600A can be adjusted up to ±6 V, and configured as a single 12-V output.

The PTB48600 includes an output "on/off" enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO). The control inputs, "Enable" and "Sync In," are compatible with the "EN Out" and "Sync Out" signals of the PTB4850x DC/DC converter. This allows the power-up and switching frequency of a PTB48600 module to be directly controlled from a PTB48500. Together the PTB48500 and PTB48600 converters meet all the system power and sequencing requirements of the AC-7 ADSL chipset.

The PTB48600 employs double-sided surface mount construction. The package options include both through-hole and surface mount pin configurations.

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* Data sheet 85-W 48-V Input Dual-Complimentary Output DC/DC Converter for DSL datasheet 13 Jan 2005
Analog Design Journal New power modules improve surface-mount manufacturability 14 Jul 2005

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DIPMODULE (ERT) 8 View options
DIPMODULE (ERU) 8 View options

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