SSL5031CTS IC Datasheet

SSL5031CTS Datasheet PDF, Equivalent


Part Number

SSL5031CTS

Description

Compact high power factor/low-THD buck LED driver IC

Manufacture

NXP

Total Page 18 Pages
PDF Download
Download SSL5031CTS Datasheet PDF


SSL5031CTS
SSL5031CTS
Compact high power factor/low-THD buck LED driver IC
Rev. 2 — 11 March 2015
Product data sheet
1. General description
The SSL5031CTS is a highly integrated, high-precision, non-isolated buck controller with
external MOSFET. It is intended to drive LED lamps in universal mains non-dimmable
lighting applications up to 25 W. The SSL5031CTS is designed for high power
factor/low-THD applications.
The SSL5031CTS operates in Boundary Conduction Mode (BCM) with on-time regulation.
Operating in BCM provides a constant output current control with high accuracy. Adaptive
switching frequency gives freedom to choose the inductor, which enables the optimization
of inductor size, efficiency and EMI.
The SSL5031CTS starts up and operates in switching mode directly from an external
resistor without dV/dt supply or auxiliary supply. This feature simplifies the VCC supply. It
allows a low-cost off-the-shelf inductor to be used, providing flexibility in application
design.
The SSL5031CTS comes in a compact TSOP6 package.
The SSL5031BTS is best suited for high power factor/low THD applications with a
high-temperature foldback function. The SSL5021BTS is suitable for low-ripple
applications.
2. Features and benefits
Driving LED strings from a rectified mains supply, high power factor/low-THD
Small electronic Bill of Materials (BOM) enabling a compact solution and a small,
single layer Printed-Circuit Board (PCB) footprint
Excellent line and load regulation and LED output current accuracy
Efficient BCM operation with:
Minimal reverse recovery losses in freewheel diode
Zero Current Switching (ZCS) and valley switching for switch turn-on
Minimal inductance value and size required
High efficiency (up to 91 %)
Ultra low IC current during operation (< 150 A)
Auto-recovery protections:
UnderVoltage LockOut (UVLO)
Cycle-by-cycle OverCurrent Protection (OCP)
Internal OverTemperature Protection (OTP)
Output OverVoltage Protection (OVP)

SSL5031CTS
NXP Semiconductors
SSL5031CTS
Compact high power factor/low-THD buck LED driver IC
Output Short Protection (OSP)
Compatible with wall switches with built-in standby indicator lights (Hotaru switch)
Extended IC lifetime
3. Applications
The SSL5031CTS is intended for low-cost, non-isolated LED lighting applications with
accurate fixed current output up to 25 W for single mains or universal mains voltage
(90 V (AC) to 277 V (AC)).
4. Quick reference data
Table 1.
Symbol
VCC
RDSon
II(SW)
VI(SW)
Quick reference data
Parameter
Conditions
supply voltage
operating range
on-state resistance
of internal switch
input current in pin SW
Tj = 25 C
Tj = 125 C
triangle wave;
duty cycle < 20 %
input voltage on pin
SW
current limited at
8.8 mA;
internal switch off
Min Typ Max Unit
[1] 9.5
-
16 V
- 0.75 0.90
- 1.20 -
2 -
+2 A
0.4 -
+22 V
[1] An internal clamp sets the supply voltage. The current into the VCC pin must not exceed the maximum IVCC
value (see Table 4).
5. Ordering information
Table 2. Ordering information
Type number
Package
Name
Description
SSL5031CTS
TSOP6
plastic surface-mounted package; 6 leads
Version
SOT457
SSL5031CTS
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 11 March 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
2 of 18


Features SSL5031CTS Compact high power factor/lo w-THD buck LED driver IC Rev. 2 — 11 March 2015 Product data sheet 1. Gen eral description The SSL5031CTS is a hi ghly integrated, high-precision, non-is olated buck controller with external MO SFET. It is intended to drive LED lamps in universal mains non-dimmable lighti ng applications up to 25 W. The SSL5031 CTS is designed for high power factor/l ow-THD applications. The SSL5031CTS ope rates in Boundary Conduction Mode (BCM) with on-time regulation. Operating in BCM provides a constant output current control with high accuracy. Adaptive sw itching frequency gives freedom to choo se the inductor, which enables the opti mization of inductor size, efficiency a nd EMI. The SSL5031CTS starts up and op erates in switching mode directly from an external resistor without dV/dt supp ly or auxiliary supply. This feature si mplifies the VCC supply. It allows a lo w-cost off-the-shelf inductor to be use d, providing flexibility in application design. The SSL5031CTS co.
Keywords SSL5031CTS, datasheet, pdf, NXP, Compact, high, power, factor/low-THD, buck, LED, driver, IC, SL5031CTS, L5031CTS, 5031CTS, SSL5031CT, SSL5031C, SSL5031, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)