PTB48580A Series

+/-12 V 30-W, Complementary Output DC/DC Converter for DSL

Catalog

+/-12 V 30-W, Complementary Output DC/DC Converter for DSL

Part	Efficiency	Mounting Type	Applications	Type	Package / Case	Voltage - Isolation	Voltage - Input (Max) [Max]	Voltage - Output 1	Current - Output (Max)	Size / Dimension [z]	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [x]	Size / Dimension [z]	Number of Outputs	Voltage - Input (Min) [Min]	Power (Watts)	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output 2	Current - Output (Max) [Max]	Current - Output (Max) [Max]
Texas Instruments PTB48580BAH	88 %	Through Hole	ITE (Commercial)	Isolated Module	8-DIP Module	1.5 kV	75 V	12 V	1.25 A	10.5 mm	40.6 mm	1.6 "	50.8 mm	2 in	0.41 "	2	36 V	30 W	85 °C	-40 °C	-12 V
Texas Instruments PTB48580AAH	86 %	Through Hole	ITE (Commercial)	Isolated Module	8-DIP Module	1.5 kV	75 V	5 V		10.5 mm	40.6 mm	1.6 "	50.8 mm	2 in	0.41 "	2	36 V	30 W	85 °C	-40 °C	-5 V	3 A	3 A

Catalog

+/-12 V 30-W, Complementary Output DC/DC Converter for DSL

Key Features

• Dual Complementary Outputs (±5 V, ±12 V)Input Voltage Range: 36 V to 75 VOn/Off Enable for Sequencing1500 VDC IsolationOver-Current ProtectionOver-Temperature ShutdownUnder-Voltage LockoutTemp Range: –40 to +85°CIndustry Standard OutlineFixed Frequency OperationSynchronizes with PTB48500Powers line driver ICs for AC-7 and other xDSL chipsetsSafety Approvals: (Pending):EN60950UL/cUL60950Dual Complementary Outputs (±5 V, ±12 V)Input Voltage Range: 36 V to 75 VOn/Off Enable for Sequencing1500 VDC IsolationOver-Current ProtectionOver-Temperature ShutdownUnder-Voltage LockoutTemp Range: –40 to +85°CIndustry Standard OutlineFixed Frequency OperationSynchronizes with PTB48500Powers line driver ICs for AC-7 and other xDSL chipsetsSafety Approvals: (Pending):EN60950UL/cUL60950

Description

The PTB48580 series of isolated DC/DC converter modules produce a complementary pair of regulated supply voltages for powering line-driver ICs in xDSL telecom applications. The modules operate from a standard telecom (–48 V) central office (CO) supply and can provide up to a 30 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. Other voltage options will power other analog applications requiring a complementary supply with relatively balanced loads. The outputs can also be easily configured for single-ended use. The modules incorporate an On/Off enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO) as standard features. The control inputs, "Enable" and "Sync In," are compatible with the "EN Out" and "Sync Out" signals of the PTB48500 DC/DC converter. This allows the power-up and switching frequency of the PTB48580 series to be directly controlled from a PTB48500. Together a PTB48500 and a PTB48580A converter meet all the system power and sequencing requirements of an AC-7 ADSL chipset. The PTB48580 series uses doublesided surface mount contruction. The package size is based on an industry standard outline and does not require a heatsink. Both through-hole and surface mount pin configurations are available. The PTB48580 series of isolated DC/DC converter modules produce a complementary pair of regulated supply voltages for powering line-driver ICs in xDSL telecom applications. The modules operate from a standard telecom (–48 V) central office (CO) supply and can provide up to a 30 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. Other voltage options will power other analog applications requiring a complementary supply with relatively balanced loads. The outputs can also be easily configured for single-ended use. The modules incorporate an On/Off enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO) as standard features. The control inputs, "Enable" and "Sync In," are compatible with the "EN Out" and "Sync Out" signals of the PTB48500 DC/DC converter. This allows the power-up and switching frequency of the PTB48580 series to be directly controlled from a PTB48500. Together a PTB48500 and a PTB48580A converter meet all the system power and sequencing requirements of an AC-7 ADSL chipset. The PTB48580 series uses doublesided surface mount contruction. The package size is based on an industry standard outline and does not require a heatsink. Both through-hole and surface mount pin configurations are available.