|
|
PDF SSL5021BTS Data sheet ( Hoja de datos )
| Número de pieza | SSL5021BTS | |
| Descripción | Compact low-ripple buck LED driver IC | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SSL5021BTS (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
SSL5021BTS
Compact low-ripple buck LED driver IC
Rev. 1 — 15 October 2014
Preliminary data sheet
1. General description
The SSL5021BTS is a highly integrated, high-precision, non-isolated MOSFET/bipolar
buck controller. It is intended to drive LED lamps in universal mains non-dimmable lighting
applications up to 25 W. The SSL5021BTS is designed for low-ripple applications.
The SSL5021BTS 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 SSL5021BTS 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 SSL5021BTS comes in a compact TSOP6 package.
The SSL5031BTS is suitable for high power factor/Low THD applications with a
high-temperature foldback function. The SSL5031CTS is best for high power
factor/low THD applications without a high-temperature foldback function.
2. Features and benefits
Driving LED strings from a rectified mains supply, low-ripple (< ±5 %)
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:
No 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 93 %)
Ultra low IC current during operation (< 150 A)
Many auto-recovery protections:
UnderVoltage LockOut (UVLO)
Cycle-by-cycle OverCurrent Protection (OCP)
Internal OverTemperature Protection (OTP)
Output OverVoltage Protection (OVP)
Output Short Protection (OSP)
1 page  
NXP Semiconductors
SSL5021BTS
Compact low-ripple buck LED driver IC
9PDLQV
)6
9PDLQV
5
/
&
9
&
9
5D
8
'
5E
5
4
6:
'(0293
9&&
*1'
,&
,616
&203
57
W
&
9
5
&
9
5 5D
/
/('3
5E
' 5 & /('V
DDD
(1) R3b, R6b, C1 and C2 are the parts for the 230 V (AC) mains application. Short R3b and R6b out; reduce C1 and C2 voltage
rating for the 120 V (AC) mains application.
(2) RT1 is optional, it is normally shorted.
Fig 3. SSL5021BTS application diagram for MOSFET
SSL5021BTS
Preliminary data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 15 October 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
5 of 18
5 Page 
NXP Semiconductors
SSL5021BTS
Compact low-ripple buck LED driver IC
Table 4. Limiting values …continued
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
ESD
ESD
electrostatic discharge
class 1
human body
model
[3] 2000
charged device
model
[4] 500
Max
+2000
+500
Unit
V
V
[1] The current into the VCC pin must not exceed the maximum I(VCC) value.
[2] An internal clamp sets the supply voltage and current limits.
[3] Equivalent to discharge a 100 pF capacitor through a 1.5 k series resistor.
[4] Charged device model: equivalent to charging the IC up to 1 kV and the subsequent discharging of each
pin down to 0 V over a 1 resistor.
10. Thermal characteristics
Table 5.
Symbol
Rth(j-a)
Rth(j-c)
Thermal characteristics
Parameter
thermal resistance from junction
to ambient
thermal resistance from junction
to case
Conditions
In free air;
JEDEC test board
In free air;
JEDEC test board
Typ Unit
259 K/W
152 K/W
11. Characteristics
Table 6. Characteristics
Tamb = 25 C; VCC = 15 V; all voltages are measured with respect to ground pin (pin 5); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max Unit
Supply (pin VCC)
Vstartup
Vth(UVLO)
start-up voltage
undervoltage lockout threshold
voltage
- 12.6 - V
- 9.9 - V
Vdelta(VCC)
delta voltage on pin VCC
Vclamp(VCC)
clamp voltage on pin VCC
Vrst(latch)
latched reset voltage
ICC(oper)
operating supply current
ICC(startup)
start-up supply current
ICC(dch)
discharge supply current
Loop compensation (pin COMP)
Ii(VCC) = 2.6 mA
switching at 100 kHz
VCC = Vrst(latch)
- 0.30 -
V
- 15.8 - V
- 6.2 - V
- - 150 A
- 88 - A
2.2 - - mA
Vton(COMP)zero
zero on-time voltage on pin
COMP
- 2.0 - V
Vton(COMP)max
maximum on-time voltage on pin
COMP
- 4.0 - V
Vclamp(COMP)
clamp voltage on pin COMP
- 4.7 - V
SSL5021BTS
Preliminary data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 15 October 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
11 of 18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet SSL5021BTS.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SSL5021BTS | Compact low-ripple buck LED driver IC | NXP Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |