BD9211F PDF даташит
Спецификация BD9211F изготовлена «ROHM Semiconductor» и имеет функцию, называемую «LED Driver control IC». |
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Детали детали
Номер произв | BD9211F |
Описание | LED Driver control IC |
Производители | ROHM Semiconductor |
логотип |
5 Pages
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STRUCTURE
Silicon Monolithic Integrated Circuit
NAME OF PRODUCT LED Driver control IC
TYPE BD9211F
FEATURE
・ Using 20V high-voltage-withstand process
・ 1Channel Push-Pull control
・ Current and voltage feedback is controlled
by drive frequency modulation
・ Built-in soft start circuit
・ Built-in timer latch circuit
・ Built-in shut down protection
・ Built-in UVLO detection circuit
・ Output Over Voltage Protection
・ Built-in error signal output function
・ Switching to current consumption save mode through STB pin
・ Possible to control the burst by external PWM
1/4
○Absolute Maximum Ratings (Ta=25℃)
Item
Symbol
Rated voltage
Unit
Power supply voltage
VCC
20
V
Driver Output
Operating temperature
Storage temperature range
Maximum Junction Temperature
N1,N2
Topr
Tstg
Tjmax
20
-40~+85
-55~+150
+150
V
℃
℃
℃
Power Dissipation
Pd
687*
mW
* It reduces gradually by 5.5 mW/℃ if above Ta= 25℃ (when mounting the board of 70.0mm×70.0mm×1.6mm)
〇Recommended Operation Ranges
Item
Power Supply
PWMIN input frequency range
Output frequency
Symbol
VCC
F_PWMIN
FOUT
Range
8.0~18.0
60~500
25~200
Unit
V
Hz
kHz
REV. A
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○Electrical Characteristics (VCC=12V, Ta=25℃)
Parameter
((WHOLE DEVICE))
Circuit current during operation
Circuit current during stand by operation
((STAND BY CONTROL))
Stand-by voltage H
Stand-by voltage L
((VCC UVLO BLOCK))
Operating voltage (VCC)
Hesteresis width (VCC UVLO)
((OSC BLOCK))
RT Output Voltage
((PWMIN BLOCK))
PWMIN pin H level input voltage range
PWMIN pin L level input voltage range
((SOFT START BLOCK))
Set up current for soft start
Soft start end voltage
((FEED BACK BLOCK))
IS threshold voltage
VS threshold voltage
IS source current 1
IS source current 2
VS source current
IS COMP detect voltage
((OUTPUT BLOCK))
N1 output sink resistance
N1 output source resistance
N2 output sink resistance
N2 output source resistance
MAX DUTY
N1-N2, N2-N1 OFF period
Drive output frequency
((TIMER LATCH BLOCK)
CP timer latch detect voltage
CP timer latch charge current
SDON latch detect voltage
SDON latch charge current
((COMP BLOCK))
COMP over voltage detect voltage
Hysteresis width (COMP)
COMPSD over voltage detect voltage
((FAIL BLOCK))
FAIL ON Resistor value
Symbol
Icc1
Icc2
VstbH
VstbL
V_VCCUVP
⊿V_VCCUVP
VRT
VPWMINH
VPWMINL
ISS
VSS_END
VIS
VVS
IIS1
IIS2
IVS
VISCOMP
Rsink_N1
Rsource_N1
Rsink_N2
Rsource_N2
MAX DUTY
TOFF
FOUT
VCP
ICP
VSDON
ISDON
VCOMP
⊿VCOMP
VCOMPSD
RFAILL
MIN.
-
-
2.0
-0.3
6.17
0.37
1.05
2.0
-0.3
1.5
2.8
1.225
1.212
-
40
-
0.606
1.5
4.5
1.5
4.5
43.0
100
57.9
1.90
0.85
1.90
0.85
3.88
0.15
3.88
-
(This product is not designed to be radiation-resistant.)
Limits
TYP.
2.3
0
-
-
6.50
0.50
1.50
-
-
2.0
3.0
1.250
1.250
-
50
-
0.625
3.0
9.0
3.0
9.0
45.0
200
60.0
2.00
1.00
2.00
1.00
4.00
0.20
4.00
100
MAX.
Unit
Conditions
5.0 mA FOUT=60kHz, PWMCMP=GND
20 μA VSTB=0V
VCC
0.8
V System ON
V System OFF
6.83
0.63
V
V
1.95
V RT=79 kΩ
5.0 V
0.8 V
2.5 uA
3.2 V
1.275
1.288
0.9
60
0.9
0.644
V
V
μA PWMIN=2.5V
μA PWMIN=0V, IS=1.0V
μA
V
6.0
18.0
6.0
18.0
47.0
400
62.1
Ω
Ω
Ω
Ω
% FOUT=60kHz
ns
kHz RT=79 kΩ
2.10
1.15
2.10
1.15
V
μA
V
μA
4.12
0.25
4.12
200
V
V
V
Ω
2/4
REV. A
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〇 External Dimensions
, Marking
〇 Block Diagram
BD9211F
Dvice Mark
3/4
SOP18 (Unit:mm)
Lot No.
○Pin Number, Pin Name, Pin Function
Pin Pin
No name
Functions
Pin Pin
No name
Functions
1 VCC
2 STB
3 GND
4 RT
5 FB
Power supply pin for IC (built-in UVLO function)
Power ON/OFF control pin for IC
Signal/ground pin for internal IC
Drive frequency set up terminal.
Lamp current, lamp voltage, error amp outputs
10 PWMIN
11 SDON
PWM signal input pin for burst bright adjustment
control
Enable pin of COMPSD inputs over voltage
detection
12 SS
Soft-start set up pin
13 FAIL
Error Indication signal Output Normal : L, Error :
OPEN
14 COMPSD Detection pin for over voltage shut down
6 IS
Error amp input pin for lamp current feedback
15 COMP
7 VS
Error amp input pin for lamp voltage feedback at
the opening time.
16
PGND
8
PWMCMP
PWM comparator input pin which controls PWM
operation during brightness adjustment.
17
N2
9 CP
Timer latch-setting pin
18 N1
Detection pin for over voltage and shut-down delay
Power Ground for external MOSFET drive
Output pin for external FET drive circuit (Ch. N2)
Output pin for external FET drive circuit (Ch. N1)
REV. A
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