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PKU5310EPI Datasheet(PDF) 10 Page - Ericsson |
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PKU5310EPI Datasheet(HTML) 10 Page - Ericsson |
10 / 25 page Ericsson Internal PRODUCT SPECIFICATION 7 (14) Prepared (also subject responsible if other) No. MICMALE 2/1301-BMR 660 00+ Uen Approved Checked Date Rev Reference EAB/FJB/GMF (Natalie Johansson) See § 1 2009-04-07 D 5 V/7 A Typical Characteristics PKU 5311E PI Start-up Shut-down Start-up enabled by connecting VI at: TP1 = +25°C, VI = 53 V, IO = 7 A load. Top trace: output voltage (2 V/div.). Bottom trace: input voltage (50 V/div.). Time scale: (5 ms/div.). Shut-down enabled by disconnecting VI at: TP1 = +25°C, VI = 53 V, IO = 7 A resistive load. Top trace: output voltage (2 V/div.). Bottom trace: input voltage (20 V/div.). Time scale: (2 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: TP1 = +25°C, VI = 53 V, IO = 7 A resistive load. Trace: output voltage (20 mV/div.). Time scale: (2 µs/div.). Additional Co =220uF Output voltage response to load current step- change (1.75 –5.25 - 1. 75 A) at: TP1 =+25°C, VI = 53 V, Co = 690 µF Top trace: output voltage (200 mV/div.). Bottom trace: load current (2 A/div.). Time scale: (0.5 ms/div.). Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: () ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − Δ − Δ × Δ + × = 22 . 10 % 511 % 225 . 1 % 100 0 . 5 11 . 5 Radj k Ω Example: Increase 4% =>VO = 5.2 Vdc () ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − − × + × 22 . 10 4 511 4 225 . 1 4 100 0 . 5 11 . 5 k Ω = 404 kΩ Active adjust The output voltage may be adjusted using a voltage applied to the Vadj pin. This voltage is calculated by using the following equations: ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − × + = 0 . 5 0 . 5 45 . 2 225 . 1 desired V Vadj V Example: Upwards => 5.2 V ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − × + 0 . 5 0 . 5 2 . 5 45 . 2 225 . 1 V = 1.323 V E PKU 5000E series DC/DC converters, Input 18-72 V, Output up to 10 A/35 W EN/LZT 146 391 R4B May 2009 © Ericsson AB Technical Specification 10 |
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