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OB3350CP View Datasheet(PDF) - On-Bright Electronics

Part Name
Description
View to exact match
OB3350CP
On-Bright
On-Bright Electronics  On-Bright
OB3350CP Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
OB3350
Cost Effective LED Controller
Electrical Characteristics
VDDH=12V,PWM=5V, TA=25 , if not otherwise noted.
Parameter
Symbol
Conditions
Min Typ Max Units
Current Consumption
Input voltage range
Operating supply current
Stand by current
I VDD
IVDD _ STB
8
Vin=12V,PWM=5V
load
no
-
PWM low >50ms sleep
mode
-
-
35
V
2.5 3
mA
310 400 uA
VDD UVLO
UVLO
UVLO Hysteresis
UVLO(ON)
UVLO(Hys)
6
78
V
500
mV
Soft start
Soft start slope
I sst _ slop
400
mV/mS
PWM Control
Operating frequency
Max duty cycle
PWM Input Threshold
FOSC
Dmax
PWM(high)
PWM(low)
High Level
Low Level
175 200 225 KHz
93 95 97 %
2.5 V
1.3
V
Error Amplifier
Reference voltage
Open loop voltage gain
Transconductance of EA
Vref _ ea
Am
Gm
Reference voltage at
non-inverting input
0.289
0.3
0.311 V
70
dB
80
100 120 uA/V
Output source current
I source
24
30 36
uA
Output sink current
I sin k
48
60 72
uA
Protection Threshold
OVP
OCP
VOVP OV
Vth_OCP
Threshold of
over voltage
output
1.8
2.0 2.2
V
Threshold of over
current
protection
330
mV
(duty=90%)
OTP ON
TOTP _ ON
140 160 180
OTP OFF
TOTP _ OFF
120 140 160
Connect detect time
OVP UVLO threshold
Tdio
VOVP UV
Normal operation
System startup
1
mS
200
mV
100
mV
Gate Driver Output
Gate rise time
Trise
500pF load
-
40 80
ns
Gate fall time
T fall
500pF load
20 40
ns
©On-Bright Electronics
Confidential
-5-
Preliminary datasheet
OB_DOC_DS_335000
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