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BD8119FM-M PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD8119FM-M
기능 White Backlight LED Driver
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BD8119FM-M 데이터시트, 핀배열, 회로
Datasheet
White Backlight LED Driver
For Medium to Large LCD Panels
(Switching Regulator Type)
BD8119FM-M
General Description
BD8119FM-M is a white LED driver with the capability
to withstand high input voltage (36V Max).
This driver has 4ch constant-current drivers integrated
in 1-chip. Each channel can draw up to 150mA max for
driving high brightness on LED. A current-mode
buck-boost DC/DC controller is also integrated to
achieve stable operation against unstable car-battery
voltage input. This also removes the constraint of the
number of LEDs in series connection. The brightness
can be controlled by either PWM or VDAC techniques.
Key Specifications
Input Supply Voltage Range:
Standby Current:
LED Maximum Output Current:
Operating Temperature Range:
5.0V to 30V
4µA (Typ)
150mA(Max)
-40°C to +95°C
Package
W(Typ) x D(Typ) x H(Max)
Features
Integrated buck-boost current-mode DC/DC
controller
Four integrated LED current driver channels
(150mA Max each channel)
PWM Light Modulation
(Minimum Pulse Width 25µs)
Built-in protection functions
(UVLO, OVP, TSD, OCP, SCP)
Abnormal status detection function
(OPEN/ SHORT)
HSOP-M28
18.50mm x 9.90mm x 2.41mm
Applications
Backlight for car navigation, dashboard panels, etc.
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
1/27
TSZ02201-0T3T0C600030-1-2
28.Aug.2014 Rev.001




BD8119FM-M pdf, 반도체, 판매, 대치품
BD8119FM-M
Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Rating
Unit
Power Supply Voltage
BOOT ,OUTH Voltage
VCC
VBOOT, VOUTH
36 V
41 V
SW,CS Voltage
BOOT-SW Voltage
LED Output Voltage
VREG, OVP, OUTL, FAIL1, FAIL2,
LEDEN1, LEDEN2, ISET, VDAC,
PWM, SS, COMP, RT, SYNC, EN Voltage
Power Consumption
VSW, VCS, VOUTH
VBOOT-SW
VLED1, VLED2, VLED3, VLED4
VREG, VOVP, VOUTL, VFAIL1, VFAIL2,
VLEDEN1, VLEDEN2, VISET, VVDAC,
VPWM, VSS, VCOMP, VRT, VSYNC, VEN
Pd
36
7
36
-0.3 to +7 < VCC
2.20 (Note 1)
V
V
V
V
W
Operating Temperature Range
Topr
-40 to +95
°C
Storage Temperature Range
Tstg
-55 to +150
°C
LED Maximum Output Current
ILED
150 (Note 2) (Note 3)
mA
(Note 1) IC mounted on glass epoxy board measuring 70mm x 70mm x 1.6mm, power dissipated at a rate of 17.6mw/°C at temperatures above 25°C.
(Note 2) Dispersion figures for LED maximum output current and VF are correlated. Please refer to data on separate sheet.
(Note 3) Amount of current per channel.
Caution: Use of the IC in excess of absolute maximum ratings (such as the input voltage or operating temperature range) may result in damage to the IC.
Assumptions should not be made regarding the state of the IC (e.g., short mode or open mode) when such damage is suffered. If operational values are
expected to exceed the maximum ratings for the device, consider adding protective circuitry (such as fuses) to eliminate the risk of damaging the IC.
Recommended Operating Conditions (Ta=25°C)
Parameter
Symbol
Rating
Power Supply Voltage
VCC 5.0 to 30
Oscillating Frequency Range
External Synchronization Frequency Range (Note 4) (Note 5)
fOSC
fSYNC
250 to 550
fOSC to 550
External Synchronization Pulse Duty Range
fSDUTY
40 to 60
(Note 4) Connect SYNC to GND or OPEN when not using external frequency synchronization.
(Note 5) Do not switch between internal and external synchronization when an external synchronization signal is inputted to the device.
Unit
V
kHz
kHz
%
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/27
TSZ02201-0T3T0C600030-1-2
28.Aug.2014 Rev.001

4페이지










BD8119FM-M 전자부품, 판매, 대치품
BD8119FM-M
Typical Performance Curves (Unless otherwise specified, Ta=25°C)
5.5
5.3
VCC=12V
5.1
4.9
4.7
4.5
-40
-15 10 35 60
TTEeMmPpeErRatAuTreU:RTEa:TaC[]]
85
Figure 1. Output Voltage vs Temperature
400
360
VCC=12V
320
280
240
200
-40
-15 10 35 60
TETeMmPpEeRraAtuTrUeR: TEa:T[a°C[] ]
85
Figure 2. Switching Frequency vs Temperature
55
53
VCC= 12V
51
49
47
45
0.5
1.5 2.5 3.5
LELDEDVOVoLlTtaAgGeE::VVLLEEDD[V[V]]
4.5
Figure 3. Output Current vs LED Voltage
(ILED Depend on VLED)
55
53
VCC= 12V
51
49
47
45
-40
-15 10 35 60
TETMePmEpRerAaTtuUreR:ET:Taa[C] ]
85
Figure 4. Output Current vs Temperature
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/27
TSZ02201-0T3T0C600030-1-2
28.Aug.2014 Rev.001

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부품번호상세설명 및 기능제조사
BD8119FM-M

White Backlight LED Driver

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