์ „์ž๋ถ€ํ’ˆ ๋ฐ์ดํ„ฐ์‹œํŠธ ๊ฒ€์ƒ‰์—”์ง„
  Korean  โ–ผ

Delete All
ON OFF
ALLDATASHEET.CO.KR

X  

Preview PDF Download HTML

BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 9 Page - Rohm

๋ถ€ํ’ˆ๋ช… BD18326NUF-M
์ƒ์„ธ๋‚ด์šฉ  40 V 600 mA 1ch Constant Current Driver for Automotive LED Lamps
Download  39 Pages
Scroll/Zoom Zoom In 100% Zoom Out
์ œ์กฐ์‚ฌ  ROHM [Rohm]
ํ™ˆํŽ˜์ด์ง€  http://www.rohm.com
Logo ROHM - Rohm

BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 9 Page - Rohm

Back Button BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 5Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 6Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 7Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 8Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 9Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 10Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 11Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 12Page - Rohm BD18326NUF-M ๋ฐ์ดํ„ฐ์‹œํŠธ HTML 13Page - Rohm Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 39 page
background image
9/36
ฉ 2020 ROHM Co., Ltd. All rights reserved.
BD18326NUF-M
28.Sep.2020 Rev.001
www.rohm.com
TSZ22111 ? 15 ? 001
TSZ02201-0T1T0B300340-1-2
Description of Blocks ? continued
(Unless otherwise specified, Tj = 25 ฐC, VIN = 13 V)
5. LED Open Detection
? In case any of Point A to Point C is in the open state
Once the OUT pin voltage VOUT becomes more than or equal to LED open detection voltage VOPD (VIN - 0.050 V
(Typ)), it can notify the abnormality to the outside by changing the PBUS pin output to low.
? In case any of Point D or Point E is in the open state
Once the ISINK pin voltage becomes 5.80 V (Typ) or more, the ISINK pin current IISINK is turned OFF(Note 1). After
that, once the OUT pin voltage VOUT becomes more than or equal to LED open detection voltage VOPD (VIN - 0.050 V
(Typ)), it can notify the abnormality to the outside by changing the PBUS pin output to low.
(Note 1) While output current bypass function at reduced-voltage (Refer to Description of Function 13) is activated, the LED is lighted because the
output current flows to the two upper side LEDs.
6. Disable LED Open Detection Function at Reduced-Voltage (OPM)
The disable LED open detection function serves to prevent LED open erroneous detection at the reduced-voltage
during the ramp up/down of the VIN pin voltage. Even if the LED is in the open state, LED open is not detected until
the VIN pin voltage becomes more than disable LED open detection voltage at reduced-voltage VIN_OPM (11.0 V (Typ)).
Set VIN_OPM to satisfy the following formula.
????????????_???????????? > ????????????_????????????????????
????????????_???????????????????? = ????????_????????????_???????????? ื ???? + (???????????? ? ????????????????)
[V]
where:
????????????_????????????
is the VIN pin disable LED open detection voltage at reduced-voltage.
????????????_????????????????????
is the VIN pin LED open erroneous detection voltage at reduced-voltage.
????????_????????????_????????????
is the LED Vf at LED open release.
????
is the number of LED.
????????????????
is the LED open detection voltage.
VIN Pin Disable LED Open Detection Voltage at Reduced-Voltage
and LED Open Erroneous Detection Voltage at Reduced-Voltage
VIN
VOUT
IOUT
VPBUS
VIN_OPM
VIN_OPM
LED Open
Erroneous
Detection
Area
LED Open
Erroneous
Detection
Area
VIN
VOP = VIN - 0.050 V
VOUT = Vf_LED x N
4.5 V
Disable
LED Open
Detection
Area
IOUT
Disable
LED Open
Detection
Area
VIN_OPERR
VIN_OPERR
Control
Logic
VIN
PBUS
PBUS
LED Open
Detection
0.050 V
+B
Current
Driver
100 mA
to 600 mA
OUT
OPM
ISINK
IOUT
IISINK
Point A
Point B
Point C
Point D
Point E
Bypass
Control
LED Open Detection
(ISINK)


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39 


๋ฐ์ดํ„ฐ์‹œํŠธ Download

Go To PDF Page


๋งํฌ URL



Privacy Policy
ALLDATASHEET.CO.KR
ALLDATASHEET ? ??? ??? ?????  [ DONATE ]  

Alldatasheet??   |   ????    |   ????? ????   |   ????????   |   ????   |   ????   |   ???? ??
All Rights Reservedฉ Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn