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PT4403A Datasheet(PDF) 1 Page - Texas Instruments |
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PT4403A Datasheet(HTML) 1 Page - Texas Instruments |
1 / 10 page For technical support and more information, see inside back cover or visit www.ti.com PT4400 Series 75-W 48-V Input Isolated DC/DC Converter Standard Application Co = Optional 330µF Electrolytic Capacitor # VID programming pins set fo 3.3V output Features • Up to 75W Output: 20A @3.3V, 15A @5V • Input Voltage Range: 36V to 75V • Programmable Output Voltage • 91% Efficiency (PT4403) • 1500 VDC Isolation • On/Off Control • Over-Current Protection Description The PT4400 series of power modules are single- output isolated DC/DC converters, housed in a compact 21-pin low-profile (12mm) package. These modules are rated up to 75W with load currents as high as 20A. The output voltage is set within a pre-defined range via a 5-bit input code. The PT4400 series operates from a standard 48-V telecom CO supply and occupies only 3.9in² of PCB area. These modules offer OEMs a compact and flexible high-output power source for use with high-end microprocessors, DSPs, general purpose logic and analog. They are suitable for distributed power applications in both telecom and computing environments. Features include output over-current protection, on/off control, output over-voltage protection (OVP), over-temperature shutdown, under-volt- age lockout (UVLO), and an output differential remote sense. The modules are fully integrated for stand-alone operation, and require no additional components. Ordering Information PT4401 H = 1.3 to 3.5 Volts PT4402 H = 1.05 to 1.75Volts PT4403 H = 3.4 to 5.7 Volts Pin-Out Information Pin Function 1 Remote On/Off * 2-Vin 3-Vin 4+Vin 5+Vin 6 Pin Not Present 7 VID 0 8 VID 1 9 VID 2 10 VID 3 11 VID 4 † 12 (–)Remote Sense 13 -Vo 14 -Vo 15 -Vo 16 -Vo 17 +Vo 18 +Vo 19 +Vo 20 +Vo 21 (+)Remote Sense * For more information consult the applicable application note. † VID 4 does not function on the PT4402 & PT4403 SLTS160B (Revised 7/19/2002) PT Series Suffix (PT1234 x ) Case/Pin Order Package Configuration Suffix Code Vertical N (ENM) Horizontal A (ENN) SMD C (ENP) (Reference the applicable package code drawing for the dimensions and PC layout) • Differential Remote Sense • Output Over-Voltage Protection • Over-Temperature Shutdown • Undervoltage Lockout • Low Profile Package (12mm) • Compact PCB Layout: (Horizontal Config. 1.45in × 2.6in, Vertical Config. < 1 in2) • Solderable Copper Case • Agency Approvals Pending L O A D PT4401 +V sns +V out -V out -V sns 21 17–20 13–16 12 71 1 81 0 9 VID0 - VID4 +V in –V in 4, 5 2, 3 1 Remote On/Off PROGRAMMING PINS # +V OUT +V IN –V IN –V OUT – REMOTE SENSE + REMOTE SENSE C o |
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