ncp5810d ON Semiconductor, ncp5810d Datasheet
ncp5810d
Available stocks
Related parts for ncp5810d
ncp5810d Summary of contents
Page 1
... In addition both converters are internally compensated which simplifies the design and reduces the PCB component count. Cycle-by-cycle peak current limit and thermal shut down provide value added features to protect the device. The NCP5810D is housed in low profile space-efficient 3x3 mm UDFN package. Features • ...
Page 2
... Vbat CINA 1 mF Thermal Shut down BOOST ENABLE PWM CONTROLLER EN Bangap 1.26 V NEGATIVE BUCK PWM CONTROLLER AGND NCP5810D L1 4 SWP 1 VOUTP C3 4.7 mF NCP5810D SWN 4 536 k 0 Figure 1. Typical Application Circuit Option of powering CINP 4 ...
Page 3
... This capacitor should be placed as close as possible to this input. 12 LXP POWER Switch LXP: The inductor should be connected between this node and SWP. This output supplies power from PVIN and gives a true-cut off function in disable condition. NCP5810D Description http://onsemi.com 3 ...
Page 4
... The thermal shutdown set to 165°C (typical) avoids irreversible damage on the device due to power dissipation. 7. The R is dependent on the PCB heat dissipation. The maximum power dissipation (P qCA current and external components selected. 125 * qCA qJC P D NCP5810D Symbol V BAT -0.3 ≤ -0.3 ≤ LXP -0.3 ≤ VREF ...
Page 5
... Power Supply Ripple Rejection (Notes 9, 13) 1 1.0 kHz 1.0 kHz to 10 kHz Load Regulation (Notes 11, 14) Load Transient Response: Overshoot and Undershoot Vs. Steady State Voltage (Notes 9, 15) NCP5810D Min & Max Limits apply for T between -40°C to +85°C and +25°C and V = 3.7 V (Unless otherwise noted) ...
Page 6
... OUTN_MAX below. P OUTN + I OUTN_MAX V OUTN For example, should one need setup - 4.9 for V 0 163 mA I OUTN_MAX 4.9 NCP5810D (Min & Max Limits apply for T between -40°C to +85°C and 3.7 V, unless otherwise noted) IN Symbol 3 OSC M DCY I STB = +25° ...
Page 7
... L = MARUWA CXFU0208-4R7 Figure 5. Line Transient Response 1 VBAT, 500 mV/div DC, from 3 VOUTP, 10 mV/div AC 400 ms/div Figure 7. Continuous Conduction Mode (CCM) 1 SWP, 5 V/div DC 100 mA/div, DC Figures 7 and 8 have been done at VBAT = 3 NCP5810D 4 3 ...
Page 8
... V OUTP V OUTN Figure 13. Start-Up 1 VOUTP, 2 V/div, 2 VOUTN, 2 V/div pin, 2 V/div Figures 9 through 12 have been done at VBAT = 3.7 V and schematic depict Figure 1 NCP5810D Figure 10. Discontinuous Current Mode (DCM) = 100 mA 1 SWN, 5 V/div OUTN Figure 12. Negative Output Voltage Ripple in CCM = 100 ...
Page 9
... AGND AGND Detailed Descriptions The NCP5810D is a dual-output DC/DC converter which can generate both a positive and a negative voltage. The output voltage of the inverter is fully configurable using external feedback resistors. The switching regulator operates at 1.75 MHz which allows the use of small inductors and ceramic capacitors. The both converters are internally compensated which simplifies the design and reduces the PCB component count ...
Page 10
... Excellent Line Transient Rejection and High Power Supply Rejection Ratio High output voltage accuracy and signal integrity makes T the NCP5810D the perfect solution for biasing Active ON T Matrix OLED displays. In order to have a steady, clean SW display, OLEDs have to be biased by a very accurate voltage with high immunity to line and load transients ...
Page 11
... Inrush Current Limiting Circuitry Before the NCP5810D boost converter is turned on unknown whether the output capacitor COUTP is charged or discharged. If the output capacitor is discharged, a common boost converter shows high inductor inrush current at start-up ...
Page 12
... PGND and AGND pin connection must be connected to the ground plane. In addition, the inductors track connection L1, L2 and input bypass capacitor C1, C2 must be placed shortly to the NCP5810D pins connection to reduce EMI. Finally it is always good practice to keep the sensitive tracks such as feedback connection (VS and FBN) away ...
Page 13
... Tape and Reel Packaging Specifications Brochure, BRD8011/D. Demo Board Available: • The NCP5810DGEVB/D evaluation board that configures the device in typical application to supply constant voltage. NCP5810D Thermal Considerations Careful attention must be paid to the internal power dissipation of the NCP5810D ...
Page 14
... COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. MILLIMETERS DIM MIN MAX A 0.45 0.55 A1 0.00 0.05 A3 0.07 REF b 0.20 0.30 D 3.00 BSC D2 2.40 2.60 E 3.00 BSC E2 1.60 1.80 e 0.50 BSC K 0.20 --- L 0.30 0.50 SOLDERING FOOTPRINT* 2.60 11X 0.35 1.80 3.30 1 0.50 PITCH DIMENSIONS: MILLIMETERS ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your loca Sales Representative NCP5810D/D ...