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PDF MBI6911 Data sheet ( Hoja de datos )
| Número de pieza | MBI6911 | |
| Descripción | High Power Factor AC/DC LED Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Preliminary Datasheet
MBI6911
High Power Factor AC/DC LED Driver with Thermal Fold-back
Features
Constant current LED driver
Voltage step down converter
Built-in active power factor correction
Quasi-resonant switching
Thermal Fold-back Function
Full protection: Thermal shutdown
VDD over voltage protection
Under voltage lock-out (UVLO)
LED short- circuit
Available in MSOP8 package
Package MSL Level : 3
Mini Small Outline Package
GMS: MSOP-8L-118mil
Product Description
MBI6911 is a 85~135V input AC-DC converter designed to deliver constant current with thermal fold-back Feature.
The built-in active power factor correction circuit maintains high power factor over a wide input voltage range.
MBI6911 is optimized for interior power applications, and the efficiency is enhanced with quasi-resonant switching
technique. MBI6911 is also featured with under voltage lock-out (UVLO), over temperature protection (OTP),
over-voltage protection and LED short-circuit protection to protect the converter from being damaged accidentally. A
thermal resistor can be used with an external voltage divider circuit to adjust the output current level automatically.
If this feature is used to monitor an output current related heat source, a temperature balance condition should be
expected.
Applications
T8 light tube LED alternative solutions
E26/E27 light bulb LED alternative solutions
GU10 light LED alternative solutions
Other Interior LED power module applications
©Macroblock, Inc., 2014
6F-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30072, R.O.C.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: [email protected]
- 1 - November 2014, V.1.00
1 page  
MBI6911
High Power Factor AC/DC LED Driver
Electrical Characteristics
Test condition: VDD=24V, CIN=10μF, and TA=25°C unless otherwise specified.
Characteristics
Supply voltage
Input Voltage
Mean output current accuracy
Line regulation
Load regulation
Symbol
Conditions
VDD
Rcs Variation±1%
Vin=85~135Vac, fs=70kHz
∆Vo=±15% Vo
Supply voltage
Continuous operating
voltage-AUX VDD
Turn-on threshold Voltage
Turn-off threshold Voltage
VDD over voltage protection
UVLO Hysteresis
Operating current
Starting current
Error amplifier
COMP upper clamp voltage
Current sense reference voltage
VDD-AUX
VDD-ON
VDD-OFF
VDD-OVP
VDD-HYS
IDD-OP
IDD-ST
Recommended operating voltage,
not a testable spec.
@ Start-up
@ UVLO
VDD=24V, CL=1nF,
No switching (Protection with
dummy load)
VDD=24V, CL=1nF, fsw=30KHz
@ before start-up
VCOMPH
VREF
Gate driver
Output high voltage
VOH VDD=30V
Output low voltage
VOL VDD=30V
Rising time
Falling time
Maximum frequency
Maximum on time
Minimum on time
Maximum off time
TR
TF
fMAX
tON-MAX
tON-MIN
tOFF-MAX
VDD=30V, CL=1nF
20%~80%
VDD=30V, CL=1nF
80%~20%
Thermal foldback
BIAS voltage
BIAS
BIAS maximum output current
Thermal foldback operation
point
Thermal foldback
trans-conductance
IBIAS_MAX
VTH
GMGAIN
Over-current protection(OCP)
Current Limit threshold CS
VOC
Short protection threshold CS
VSCP
Startup
Pre-charge COMP Level
VPRE
Over-temperature protection(OTP)
Thermal shutdown temperature
TSD
Min Typ Max
18 37
- ±1 -
- ±1
- ±1
- 30 -
14.4 16 17.6
6.3 7 7.7
37 30 43
8.1 9 9.9
1.5 2.3
0.6 - 1.6
- 20 40
2.9 3.2 3.5
0.19 0.2 0.21
10.8 12 13.2
- - 0.5
- - 100
- - 100
170 200 230
21.6 24 26.4
180 200 220
29.97 33.3 36.63
0.95 1 1.05
2
0.475 0.5 0.525
900 1100 1300
1.18 1.2 1.32
1.35 1.5 1.65
0.9 1 1.1
140 155 170
Unit
V
%
%
%
V
V
V
V
V
mA
mA
uA
V
V
V
V
ns
ns
kHz
us
ns
us
V
mA
V
uA/V
V
V
V
°C
November 2014, V1.00
-5-
5 Page 
MBI6911
High Power Factor AC/DC LED Driver
Package Power Dissipation (PD)
The maximum power dissipation, PD(max)=(Tj–Ta)/Rth(j-a), decreases as the ambient temperature increases.
MBI6911 Maximum Power Dissipation at Various Ambient Temperature
Power Dissipation (W)
4.0
3.5
3.0
2.5
2.0 Safe Operation Area
1.5
1.0
0.5
0.0
0
10 20 30 40 50 60 70 80
Ambient Temperature ( ℃)
GMS Type: Rth=37.53℃/W
- 11 -
November 2014, V1.00
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet MBI6911.PDF ] | |
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