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FC9961C 데이터시트(Datasheet) 3 Page - First Silicon Co., Ltd

부품명 FC9961C
상세내용  LED Driver with Average-Mode Constant Current Control
PDF  7 Pages
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제조사  FS [First Silicon Co., Ltd]
홈페이지  http://www.firstsilicon.co.kr/
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FC9961C
2019. 03. 14
3/7
Revision No : 0
Sym
Description
Min
Typ
Max Units Conditions
Internal Regulator
V
DD
Internally regulated voltage
-
7.25
7.50
7.75
V
V
IN = 8.0V, IDD(ext) = 0,
500pF at GATE; R
T = 226kΩ
ΔV
DD, line
Line regulation of V
DD
-
0
-
1.0
V
V
IN = 8.0 - 450V, IDD(ext) = 0,
500pF at GATE; R
T = 226kΩ
ΔV
DD, load
Load regulation of V
DD
-
0
-
100
mV
I
DD(ext) = 0 - 1.0mA,
500pF at GATE; R
T = 226kΩ
UVLO
V
DD undervoltage lockout
threshold
*
6.00
6.25
6.50
V
V
IN rising
∆UVLO
V
DD undervoltage lockout
hysteresis
-
-
500
-
mV
V
IN falling
I
IN,MAX
Maximum input current
(limited by UVLO)
#
3.5
-
-
mA
V
IN = 8.0V, TA = 25
O
C
#
1.5
-
-
V
IN = 8.0V, TA = 125
O
C
PWM Dimming
V
EN(lo)
PWMD input low voltage
*
-
-
0.8
V
V
IN = 8.0 - 450V
V
EN(hi)
PWMD input high voltage
*
2.0
-
-
V
V
IN = 8.0 - 450V
R
EN
Internal pull-down resistance
at PWMD
-
50
100
150
kΩ
V
PWMD = 5.0V
Average Current Sense Logic
V
CS
Current sense reference voltage -
253
265
277
mV
---
A
V(LD)
LD-to-CS voltage ratio
-
0.169
-
0.185
-
---
V
LD(OFF)
LD input voltage, shutdown
-
-
150
-
mV
V
LD falling
ΔV
LD(OFF)
LD input voltage, enable
-
-
200
-
mV
V
LD rising
T
BLANK
Current sense blanking interval
*
150
-
280
ns
---
T
ON(min)
Minimum on-time
-
-
-
1000
ns
CS = V
CS +30mV
D
MAX
Maximum steady-state duty
cycle
-
75
-
-
%
Reduction in output LED current
may occur beyond this duty cycle
Short Circuit Protection
V
CS
Hiccup threshold voltage
-
430
-
480
mV
---
T
DELAY
Current limit delay CS-to-GATE
-
-
-
150
ns
CS = V
CS +30mV
T
HICCUP
Short circuit hiccup time
-
330
-
460
μs
---
T
ON(min)
Minimum on-time (short circuit)
-
-
-
430
ns
CS = V
DD
Notes:
*
Denotes the specifications which apply over the full operating ambient temperature range of -40°C < T
A < +125°C.
#
Guaranteed by design.
Electrical Characteristics (Specifications are at T
A = 25°C. VIN = 12V, VLD = VDD, PWMD = VDD unless otherwise noted))
Input
V
INDC
Input DC supply voltage range
*
8.0
-
450
V
DC input voltage
V
INSD
Shut-down mode supply current *
-
0.5
1.0
mA
PWMD connected to GND
1




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