DC-DC Constant Current Buck-Boost LED driver
■
Features :
DC/DC buck-boost converter
LDB-L
series
Constant current output: 300mA to 600mA
Wide input voltage: 9 ~ 36VDC
Wide output LED string voltage: 2 ~ 40VDC
High efficiency up to 91%
Built-in EMI filter, comply with EN55015 and FCC part15 without
additional input filter and capacitors
Built-in PWM and remote ON/OFF control
Protections: Short circuit / Over temperature
Cooling by free air convection
Fully encapsulated with IP67 level
Compact size
Low cost, high reliability
Suitable for driving illumination LED
3 years warranty
LDB-350L W
Blank : pin style
W
: wire style
SPECIFICATION
ORDER NO.
CURRENT RANGE
VOLTAGE RANGE
OUTPUT
LDB-300L
300mA
2 ~ 40VDC
LDB-350L
350mA
2 ~ 40VDC
150mVp-p
LDB-500L
500mA
2 ~ 32VDC
150mVp-p
LDB-600L
600mA
2 ~ 30VDC
200mVp-p
CURRENT ACCURACY (Typ.)
±5%
RIPPLE & NOISE(max.)
Note.2
150mVp-p
SWITCHING FREQENCY
350KHz
NO LOAD OUTPUT VOLTAGE
75VDC
9 ~ 36VDC
VOLTAGE RANGE
EFFICIENCY (max.)
12VDC 89%
24VDC 90%
12VDC 1070mA
24VDC 530mA
10mA
Capacitor
Leave open if not use
9 ~ 36VDC
89%
90%
1120mA
610mA
9 ~ 30VDC
89%
91%
1235mA
710mA
9 ~ 28VDC
87%
91%
1610mA
910mA
INPUT
DC
CURRENT
FILTER
Full load
No load
PWM
DIMMING REMOTE ON/OFF
&
ON/OFF
PWM FREQUENCY
CONTROL
MAX. PWM SIGNAL CURENT
SHORT CIRCUIT
PROTECTION
OVER TEMPERATURE
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
ENVIRONMENT
TEMP. COEFFICIENT
VIBRATION
Power ON with dimming: DIM ~ -Vin >2 ~ 10VDC or open circuit
Power OFF : DIM ~ -Vin < 0.5VDC or short
100 ~ 1KHz
1mA
Regulated at rated output current
Protection type: Can be continued, recovers automatically after fault condition is removed
Tj 145
℃
typically(IC1) detect on main control IC
Protection type : Shut down, recovers automatically after temperature goes down
-40 ~ + 71
℃
(Refer to derating curve)
20% ~ 90% RH non-condensing
-55 ~ +125
℃
, 10 ~ 95% RH
±
0.03% /
℃
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
OPERATING CASE TEMP. (max.)
110℃
SAFETY STANDARDS
EAC TP TC 004 approved
EMC
EMC EMISSION
EMC IMMUNITY
MTBF
DIMENSION
OTHERS
WEIGHT
POTTING MATERIAL
NOTE
Compliance to EN55015, FCC part 15 class B,
EAC TP TC 020
Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A,
EAC TP TC 020
600Khrs min. MIL-HDBK-217F (25
℃
)
31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H)
LDB-L:15.6g ; LDB-LW:18g
Expoxy(UL94-V0)
1.All parameters are specified at normal input(24VDC), rated load, 25
℃
70% RH ambient.
2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf capacitor.
3.The output of LDB-L should not be connected to the input of the same unit or output from other sources.
File Name:LDB-L-SPEC 2018-05-11
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EEWORLD
