BH76806FVM-TR Rohm Semiconductor, BH76806FVM-TR Datasheet - Page 6

• Manufacturer Part Number: BH76806FVM-TR
• Description: IC VIDEO DRIVER CAP-LESS 8MSOP
• Manufacturer: Rohm Semiconductor

Specifications of BH76806FVM-TR

• Applications: Driver
• Number Of Circuits: 1
• Current - Supply: 16mA
• Current - Output / Channel: 30mA
• Voltage - Supply, Single/dual (±): 2.5 V ~ 3.45 V, ±1.25 V ~ 1.725 V
• Mounting Type: Surface Mount
• Package / Case: 8-VSSOP, 8-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2009 ROHM Co., Ltd. All rights reserved.
BH76806FVM, BH76809FVM, BH76812FVM, BH76816FVM
www.rohm.com
1)
2)
As is shown in Figure 6, in the BH768xxFVM Series, a dual power supply amplifier is integrated with a charge pump circuit
in the same IC. This enables operation using a + 3V single power supply while also using a dual power supply amplifier,
which eliminates the need for an output coupling capacitor.
BH768xxFVM Series devices provide both a low-voltage video driver and a large dynamic range (approximately 5.2 Vpp).
A resistance termination method (150 kΩ termination) is used instead of the clamp method, which only supports video
signals, since it supports various signal types.
The BH768xxFVM series supports a wide range of devices such as, video signals, chroma signals, and RGB signals that
can operate normally even without a synchronization signal.
In addition, input terminating resistance (150 kΩ) can use a small input capacitor without reducing the sag low-band
It is recommended to use a H-bar signal when evaluating sag characteristics, since it makes sag more noticeable. (See
Figures 7 to 10.)
Configuration of BH768xxFVM Series
Input terminal type and sag characteristics
1μF
Vcc +3V
Vcc +3V
Charge Pump
SW1
AMP
1μF
charge current
Flying capacitor
charge current
+
+
VCC
VCC
－
－
SW2
-VCC
75Ω
Fig. 5
Fig. 6 BH768xxFVM Configuration Diagram
3.3μF
Load capacitor
Principles of Charge Pump Circuit
75Ω
6/16
Dual power supply amp
アンプ H768xxFVM
Charge pump
Single chip
integration
Vcc +3V
768xxFVM
Flying capacitor
charge current
SW1
charge current
charge transfer mode
+
+
－
－
SW2
Output capacitor not required
for single power supply either.
－
+
－
+
Load capacitor
-Vcc is generated
-Vcc is generated
Technical Note
2009.03 - Rev.A