Nano CapTM
Datasheet
Automotive LED Driver Series
24CH Linear LED Driver Embedded
Automotive Lamps LED Driver
BD18333EUV-M
General Description
Key Specification
BD18333EUV-M is 24CH constant current driver with 8-
bit PWM dimming and 8-bit local DC dimming individual
channels. Communication with μ-Controller is available
via UART.
◼Operating Input Voltage Range:
◼LED Pin Maximum Output Current:
◼Operating Temperature Range: -40 °C to +125 °C
4.5 V to 40.0 V
125 mA
Features
Package
HTSSOP-C48
W (Typ) x D (Typ) x H (Max)
12.5 mm x 8.1 mm x 1.0 mm
◼ Nano CapTM Integrated
◼ AEC-Q100 Qualified(Note 1)
◼ ISO 26262 Process Compliant to Support ASIL-B
◼ Integrated 24CH LED Constant Current Driver
◼ UART Interface
◼ Independent 8-bit PWM Dimming Function
◼ Independent 8-bit Local DC Dimming Function
◼ Independent 4-bit Delay Function
◼ LSI Protection Function (UVLO, TSD)
◼ LED Abnormality Detection Function (Open/Short)
◼ LED Cathode Short Detection Function
◼ Integrated Abnormality Output the FAILB Pin
(Note 1) Grade 1
Application
◼ Rear Lamps (+ Animation)
◼ Position/DRL (+ Animation)
◼ Turn (+ Animation)
Typical Application Circuit
VIN
1
2
3
4
5
6
7
8
9
VREG3
GND
48
N.C. 47
CS0 46
CS1 45
CS2 44
EXP_PAD
VREG5
EN
RX
CAN TRANCSIVER
CS3
TX
43
PWMIN
LGND.
FAILB
PWMOUT 42
LGND 41
TEST 40
5V
LDO
10 LED1
11 LED2
12 LED3
13 LED4
14 LED5
15 LED6
16 N.C.
LED24 39
LED23 38
LED22 37
LED21 36
LED20 35
LED19 34
N.C. 33
17 LED7
18 LED8
19 LED9
20 LED10
21 LED11
22 LED12
23 EXTISET
24 LGND
LED18 32
LED17 31
LED16 30
LED15 29
LED14 28
LED13 27
EXTISET2 26
LGND 25
EXP_PAD
Figure 1. Application Circuit
Nano Cap™ is a trademark or a registered trademark of ROHM Co., Ltd.
〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays.
www.rohm.com
© 2021 ROHM Co., Ltd. All rights reserved.
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