|
|
PDF MBI6660 Data sheet ( Hoja de datos )
| Número de pieza | MBI6660 | |
| Descripción | 500mA LED Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MBI6660 (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
|
No Preview Available !
Macroblock
Preliminary Datasheet
MBI6660
60V, Step-Down, 500mA LED Driver
Features
Maximum 500mA constant output current
97% efficiency @ input voltage 48V, loading condition 350mA, 12
LEDs in series
9~60V wide input voltage range
Surface Mount Device
Hysteretic PFM eliminates external compensation design
Settable output current
Integrated power switch with 0.35ohm Rds(on)
Full protections: UVLO/Start-Up/OCP/ Thermal/ LED Open-/ LED
GSD: TO-252-5L
Short- Circuited
Only 5 external components required
Small Outline Package
Product Description
MBI6660 is a high efficiency, constant current and step-down DC/DC
converter. It is designed to deliver constant current to light up high power
LED with only 5 external components. By hysteretic PFM control scheme,
MBI6660 omits the external compensation design.
GD: SOP8L-150-1.27
The output current of MBI6660 can be programmed by an external resistor and LED dimming can be controlled via
pulse width modulation (PWM) through DIM pin. In addition, the start-up function limits the inrush current while the
power is on. MBI6660 also features under voltage lock out (UVLO), over temperature protection (OTP), and over
current protection (OCP) to guard the system to be robust and keep the IC away from being damaged resulting
from LED open-circuited, short-circuited and other abnormal events.
Additionally, to ensure the system reliability, MBI6660 builds thermal protection (TP) function inside. This function
protects IC from overheating in various application conditions. MBI6660 provides thermal-enhanced packages as
well to handle power dissipation more efficiently.MBI6660 is available in TO-252-5L and SOP-8L packages.
Applications
Signage and Decorative LED Lighting
Automotive LED Lighting
High Power LED Lighting
Constant Current Source
Macroblock, Inc. 2013
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: [email protected]
-1-
May 2013, V2.00
1 page  
MBI6660
60V, Step-Down, 500mA LED Driver
Electrical Characteristics
Test condition: VIN=24V, VOUT=3.6V, L1=68μH, CIN=COUT=10μF, TA=25°C; unless otherwise specified.
Characteristics
Symbol
Condition
Min. Typ. Max.
Supply Voltage
VIN -
9 - 60
Supply Current
IIN VIN=9V~60V
- 1.5 4
Output Current
Output Current Accuracy
SW Dropout Voltage
Internal Propagation
Delay Time
IOUT
dIOUT/IOUT
VSW
Tpd
-
350mA≤IOUT≤1000mA,
IOUT=350A
-
- 350
- ±3
- 0.3
100 200
500
±5
-
300
Efficiency
DIM Input “H” level
Voltage
“L” level
Switch ON Resistance
Minimum Switch ON
Time*
Minimum Switch OFF
Time*
Recommended Duty
Cycle Range of SW*
Maximum Operating
frequency
CURRENT SENSE
-
VIH
VIL
Rds(on)
TON,MIN
TOFF,MIN
Dsw
FreqMAX
Mean SEN Voltage
VSEN
THERMAL OVERLOAD
Thermal Shutdown
Threshold*
TSD
Thermal Shutdown
Hysteresis*
TSD-HYS
UNDER VOLTAGE LOCK OUT
UVLO Voltage
-
UVLO Hysteresis
-
Start Up Voltage
-
OVER CURRENT PROTECTION
Over Current Threshold*
DIMMING
Duty Cycle Range of
PWM Signal Applied to
DIM pin
DutyDIM
VIN=48V, IOUT=350mA, VOUT=43V
-
-
VIN=12V; refer to test circuit (b)
-
-
-
-
VIN=10V, V1=1V, refer to test circuit
(c)
-
-
TA=-40~85°C
-
-
-
PWM frequency: 100Hz~1kHz
-
2.5
-
100
100
20
40
95
145
20
7.4
0.15
7.6
1
97
-
-
0.35
350
350
-
-
100
155
30
7.8
0.25
8.0
1.7
-
-
-
0.8
450
450
80
1000
105
175
40
8.2
0.35
8.4
100
*Parameters are not tested at production. Parameters are guaranteed by design.
Unit
V
mA
mA
%
V
ns
%
V
V
Ω
ns
ns
%
kHz
mV
°C
°C
V
V
V
A
%
- 5 - May 2013, V2.00
5 Page 
MBI6660
60V, Step-Down, 500mA LED Driver
Output Current vs. LED Cascaded Number at Various Inductor
Output Current vs. LED Cascaded Number @ VIN=12V
550
540
530
520
510
500
490
1
RSEN=0.2Ω
VIN=12V
CIN=COUT=10uF
100uH
68uH
22uH
2
LED Cascaded Number
3
400
390
380
370
360
350
1
RSEN=0.28Ω
VIN=12V
CIN=COUT=10uF
2
LED Cascaded Number
IOUT=500mA
Fig. 28
IOUT=350mA
Fig.29
100uH
68uH
22uH
3
570
560
550
540
530
520
510
500
490
480
1
Output Current vs. LED Cascaded Number @ VIN=24V
RSEN=0.2Ω
VIN=24V
CIN=COUT=10uF
100uH
68uH
22uH
2345
LED Cascaded Number
6
420
410
400
390
380
370
360
350
340
330
1
RSEN=0.28Ω
VIN=24V
CIN=COUT=10uF
100uH
68uH
22uH
2345
LED Cascaded Number
6
IOUT=500mA
Fig. 30
IOUT=350mA
Fig.31
Output Current vs. LED Cascaded Number @ VIN=48V
650
RSEN=0.2Ω
100uH
VIN=48V
68uH
610
CIN=COUT=10uF
22uH
570
530
490
450
1 2 3 4 5 6 7 8 9 10 11 12
LED Cascaded Number
500
480
RSEN=0.28Ω
100uH
460
VIN=48V
68uH
440
CIN=COUT=10uF
22uH
420
400
380
360
340
320
300
280
1 2 3 4 5 6 7 8 9 10 11 12
LED Cascaded Number
IOUT=500mA
Fig. 32
IOUT=350mA
Fig.33
- 11 -
May 2013, V2.00
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet MBI6660.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MBI6660 | 500mA LED Driver | Macroblock |
| MBI6661 | 1A LED Driver | Macroblock |
| MBI6662 | Common Anode Step-Down LED Driver | Macroblock |
| MBI6663 | 1A Dimmable LED Driver | Macroblock |
| 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 |