BM81810MUV-M Datasheet, PDF (1/79 Pages) Rohm – Automotive Panel Power Management IC

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:
-40℃ to +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
VGH
C_VGH
D_VGL
VGL
VCOM
C_VGL
AVDD
C_LSO
Figure 1. Application Circuit
○Product structure：Silicon monolithic integrated circuit
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© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
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TSZ02201-0313AAF00730-1-2
25.July.2016 Rev.001