BH76906GU-E2 Rohm Semiconductor, BH76906GU-E2 Datasheet - Page 8

• Manufacturer Part Number: BH76906GU-E2
• Description: IC VIDEO DRIVER CAP-LESS 8WLCSP
• Manufacturer: Rohm Semiconductor

Specifications of BH76906GU-E2

• Package / Case: 8-WLCSP
• Applications: Driver
• Number Of Circuits: 1
• Current - Supply: 17mA
• Current - Output / Channel: 30mA
• Voltage - Supply, Single/dual (±): 2.5 V ~ 3.45 V, ±1.25 V ~ 1.725 V
• Mounting Type: Surface Mount
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 76906
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Power Dissipation Pd: 580mW
• Supply Current: 17mA
• Supply Voltage: RoHS Compliant
• Supply Voltage Max: 3.45V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●Application Circuit Example
●Caution on use
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BH76906GU, BH76909GU, BH76912GU, BH76916GU, BH76706GU
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4. Capacitors C1 and C4 should be placed as close as possible to the IC. If the wiring to the capacitor is too long, it can
1. Wiring from the decoupling capacitor C4 to the IC should be kept as short as possible.
2. Capacitors to use
3.
5.
6. The output resistor R2 should be placed close to the IC.
7. If the IC is mounted in the wrong direction, there is a risk of damage due to problems such as inverting VCC and GND.
8. A large current transition occurs in the power supply pin when the charge pump circuit is switched. If this affects other
C1=1.0uF
C2=1.0uF
＊SW1 and SW2 are built-in BH76706GU only
ICs (via the power supply line), insert a resistor (approximately 10 Ω) in the VCC line to improve the power supply's ripple
effects. Although inserting a 10 Ω resistor lowers the voltage by about 0.2 V, this IC has a wide margin for low-voltage
operation, so dynamic range problems or other problems should not occur. (See Figures 12 to 14.)
Moreover, this capacitor's capacitance value may have ripple effects on the IC, and may affect the S-N ratio for signals, so
we recommend using as large a decoupling capacitor as possible. (Recommended C4: 3.3 µF, B characteristics, 6.3 V
or higher maximum voltage)
Make mount board patterns follow the layout example shown on page 10 as closely as possible.
lead to intrusion of switching noise. (Recommended C1: 1.0 µF, B characteristics, 6.3 V or higher maximum voltage)
Be sure to check for video signal sag before determining the C3 value.
In view of the temperature characteristics, etc., we recommend a ceramic capacitor with B characteristics.
The NVCC (C1 pin) terminal generates a voltage that is used within the IC, so it should never be connected to a load
unless absolutely necessary. Moreover, this capacitor (C2) has a large capacitance value but very little negative voltage
ripple.
(Recommended C2: 1.0 μF, B characteristic, 6.3 V or higher maximum voltage)
The HPF consists of input coupling capacitor C3 and 150 kΩ of internal input impedance.
The cut-off frequency fc can be calculated using the following formula.
fc = 1/(2π×C3×150kΩ)
Be careful when mounting it.
C_MINUS
C_PLUS
NVCC
A1
B1
C1
※ We are confident in recommending the above application circuit example, but we ask that
At playback (Active mode)
you carefully check not just the static characteristics but also transient characteristics of this
circuit before using it.
CHARGE
PUMP
NVCC
SW2
A2
C2
2.5～3.45V
Vcc
GND
6/9/12/16.5dB
LPF
(Recommended C3: 1.0 μF, B characteristic, 6.3 V or higher maximum voltage)
C4=3.3uF
SW1
150k
VOUT
A3
B3
C3
VIN
STBY
VIDEO OUT
Ｒ2＝75Ω
VIDEO IN
C3=1.0uF
Video
monitor
CIRCUIT
CURREN
Fig.11
8/16
C1=1.0uF
C2=1.0uF
See page 3/16 for STBY pin logic in each mode
C_MINUS
C_PLUS
Recording (Input mode) BH76706GU only
NVCC
A1
C1
B1
CHARGE
PUMP
NVCC
SW2
A2
C2
2.5～3.45V
Vcc
GND
6dB
LPF
C4=3.3uF
SW1
150k
VOUT
Technical Note
2009.03 - Rev.A
A3
B3
C3
VIN
STBY
Ｒ2＝75Ω
VIDEO IN
C3=1.0uF
VIDEO IN
75Ω