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ROHM Semiconductor - Automotive Panel Power Management IC

Numéro de référence BM81810MUV-M
Description Automotive Panel Power Management IC
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BM81810MUV-M fiche technique
Datasheet
Power Supply IC Series for TFT-LCD Panels
Automotive Panel Power Management IC
BM81810MUV-M
General Description
BM81810MUV-M is a power management IC for
TFT-LCD panels which are used in car navigation,
in-vehicle center panel, and instrument cluster.
This IC incorporates VCOM amplifier, Gate Pulse
Modulation (GPM) in addition to the power supply for
panel driver (SOURCE, GATE, and LOGIC power
supplies). Moreover, this IC has a built-in EEPROM for
sequence and output voltage setting retention.
Key Specifications
Input voltage range:
2.6V to 5.5V
AVDD Output voltage range:
5.0V to 17.0V
VGH Output voltage range:
8.0V to 35.0V
VGL Output voltage range:
-4.0V to -14.0V
VDD Output voltage range:
0.9V to 3.4V
VCOM Output current:
200 mA (Typ.)
Switching Frequency: 525KHz, 1.05MHz, 2.1MHz
Operating temperature range:
-40to +105
Standby current:
2.0 uA (Typ.)
Special Characteristics
AVDD output voltage accuracy:
Oscillator Frequency:
±2%
±10%
Applications
TFT-LCD Panels which are used in car navigation,
in-vehicle center panel, and instrument cluster.
Features
AEC-Q100 Qualified(Note 1)
Alternative Synchronous Buck DC/DC converter or LDO
for VDD output
Synchronous Boost DC/DC converter for AVDD output
with integrated load switch.
VCOM amplifier with 7bit calibrator
Positive charge pump (Integrated diode, x2/x3) for VGH
output
Negative charge pump for VGL output
VGH and VCOM temperature compensation
Gate Pulse Modulation(GPM)
I2C Interface Output Voltage Setting Control Function
(Integrated EEPROM)
Switching frequency switching function
(525KHz, 1.05MHz, 2.1MHz)
Protection circuits
Under-Voltage Lockout
Thermal Shut Down
Over-Current Protection
Over-Voltage Protection
Under Voltage Protection (Timer Latch type)
Input tolerant (SCL, SDA, EN, WPN)
(Note1: Grade 2)
Package
QFN 32pin
W(Typ.) x D(Typ.) x H(Max.)
5.0mm x 5.0mm x 1.0mm
Typical Application Circuit (TOP VIEW)
WPN
R_NTC3
R_NTC2
R_NTC1
R_FLT
VIN
VIN
R_PG
Θ
FAULT
PG / LDSW
R_RE
CPP2
C_DRP2
VIN
R_RST
VDD
C_VDD
L_SWB
GSIN
SDA
SCL
RST
SWB
EN
C_VCP
VCP
CPP1
DRP
DRN
C_DRP1
C_DRN
12345678
AVDD
C_VCOM
C_VINB
C_REG
VIN
C_VIN
(D_SW)
C_AVD
GSOUT
C_VGH
VGH
D_VGL
VGL
VCOM
C_VGL
AVDD
C_LSO
Figure 1. Application Circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/75
TSZ02201-0313AAF00730-1-2
25.July.2016 Rev.001

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