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BD9271KUT 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BD9271KUT은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 BD9271KUT 자료 제공

부품번호 BD9271KUT 기능
기능 White LED Diver
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BD9271KUT 데이터시트, 핀배열, 회로
Datasheet
LED Drivers for LCD Backlights
White LED Diver for
Backlight of Medium/Large-sized LCDs
BD9271KUT
General Description
BD9271KUT is a white LED diver used on backlight of
Medium/Large-sized LCDs. This IC can achieve
dimming function by SPI control. And through the SPI
correspondence, it can set the ON/OFF of each switch,
analog dimming and etc. The signals of PWM dimming
can set the frequency, ON time and delay of PWM by
inputting the external signals to the register.
BD9271KUT has equipped several protection functions
to deal with the abnormal states, including LED OPEN
protection, LED SHORT protection, external current
setting resistance SHORT protection, external MOS
transistor SHORT protection, etc. So it can be used in a
wide output voltage range and various load conditions.
Key Specifications
VCC power supply range
DVDD power supply range
CLK frequency setting range
Operating Circuit current range
Operating temperature range
9.0V35.0V
3.0V3.6V
10010000kHz
2.4mA(typ.)
-40℃~+85
Applications
TV, PC display
Other LCD backlight
Typical Application Circuit
Features
16-ch constant current driver (external FET(NMOSis
equipped.)
LED voltage can be set externally.
PWM dimming and Analogue dimming can be
controlled by SPI.
LED Abnormal operation detection circuit (OPEN
protection/ SHORT protection) is equipped.
LED SHORT protection detection voltage is adjustable
(LSP terminal)
LED SHORT protection detection CH
FAIL INDICATION function is equipped by ERR_DET
terminal.
3 lines serial interface
Package: TQFP64U
Package
TQFP64U
Pin Pitch
W(Typ.) D(Typ.) H(Max.)
9.00mm×9.00mm×1.20mm
0.4mm
Figure 1. TQFP64U
Figure 2. Typical Application Circuit
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays
1/34
TSZ02201-0F1F0C100260-1-2
22.Jul.2015 Rev.006




BD9271KUT pdf, 반도체, 판매, 대치품
BD9271KUT
Datasheet
Terminal No., Name, and Function
No. Terminal
Function
1
G1
CH1 NMOS gate
terminal
2
D1
CH1 NMOS drain
terminal
3
S1
CH1 NMOS source
terminal
4
G2
CH2 NMOS gate
terminal
5
D2
CH2 NMOS drain
terminal
6
S2
CH2 NMOS source
terminal
7
G3
CH3 NMOS gate
terminal
8
D3
CH3 NMOS drain
terminal
9
S3
CH3 NMOS source
terminal
10
G4
CH3 NMOS gate
terminal
11
D4
CH4 NMOS drain
terminal
12
S4
CH4 NMOS source
terminal
13
G5
CH5 NMOS gate
terminal
14
D5
CH5 NMOS drain
terminal
15
S5
CH5 NMOS source
terminal
16
G6
CH6 NMOS gate
terminal
No. Terminal
Function
17
D6
CH6 NMOS drain
terminal
18
S6
CH6 NMOS source
terminal
19
G7
CH7 NMOS gate
terminal
20
D7
CH7 NMOS drain
terminal
21
S7
CH7 NMOS source
terminal
22
G8
CH8 NMOS gate
terminal
23
D8
CH8 NMOS drain
terminal
24
S8
CH8 NMOS source
terminal
25
S9
CH9 NMOS source
terminal
26
D9
CH9 NMOS drain
terminal
27
G9
CH9 NMOS gate
terminal
28
S10
CH10 NMOS source
terminal
29
D10
CH10 NMOS drain
terminal
30
G10
CH10 NMOS gate
terminal
31
S11
CH11 NMOS source
terminal
32
D11
CH11 NMOS drain
terminal
No. Terminal
Function
33
G11
CH11 NMOS gate
terminal
34
S12
CH12 NMOS source
terminal
35
D12
CH12 NMOS drain
terminal
36
G12
CH12 NMOS gate
terminal
37
S13
CH13 NMOS source
terminal
38
D13
CH13 NMOS drain
terminal
39
G13
CH13 NMOS gate
terminal
40
S14
CH14 NMOS source
terminal
41
D14
CH14 NMOS drain
terminal
42
G14
CH14 NMOS gate
terminal
43
S15
CH15 NMOS source
terminal
44
D15
CH15 NMOS drain
terminal
45
G15
CH15 NMOS gate
terminal
46
S16
CH16 NMOS source
terminal
47
D16
CH16 NMOS drain
terminal
48
G16
CH16 NMOS gate
terminal
No. Terminal
Function
49 VREF5V 5V regulator output terminal
50 LSP
SHORT detection setting
terminal
51 VCC
Power source terminal
52 STB
Enable terminal
53 GND
GND terminal
54
COMP2
ERROR AMP output
(CH916)
55
COMP1
ERROR AMP output
(CH18)
56 DGND Digital GND terminal
57 CS
Chip select terminal
58 CLK
Clock input terminal
59 DI
DATE input terminal
60 DO
DATE output terminal
61 VSYNC VSYNC signal terminal
62 HSYNC HSYNC signal terminal
63
ERR_DET
Abnormal detection output
terminal
64 DVDD
Digital Power source
terminal
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/34
TSZ02201-0F1F0C100260-1-2
22.Jul.2015 Rev.006

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BD9271KUT 전자부품, 판매, 대치품
BD9271KUT
Typical Performance Curves
400 
350 
300 
250 
200 
150 
100 
50 
0 
9 13 17 21 25 29 33
VCC [V]
Figure 7. Stand-by Current (IST) [µA] vs. VCC[V]
Datasheet
5.0 
4.5 
4.0 
3.5 
3.0 
2.5 
2.0 
1.5 
1.0 
0.5 
0.0 
9
13 17 21 25 29
VCC [V]
33
Figure 8. Operating Current (Icc) [mA] vs. VCC[V]
(LED1-16 OFF)
5.5 
5.4 
5.3 
5.2 
5.1 
5.0 
4.9 
4.8 
4.7 
4.6 
4.5 
9
13 17 21 25 29
VCC [V]
Figure 9. VREF5V[V] vs. VCC[V]
33
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/34
TSZ02201-0F1F0C100260-1-2
22.Jul.2015 Rev.006

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관련 데이터시트

부품번호상세설명 및 기능제조사
BD9271KUT

White LED Diver

ROHM Semiconductor
ROHM Semiconductor

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