TB62779FNG Toshiba, TB62779FNG Datasheet - Page 8

• Manufacturer Part Number: TB62779FNG
• Manufacturer: Toshiba

Specifications of TB62779FNG

• Package: VSOP20
• # Outputs: 9
• Vout Max: 29V
• Io: 5.0 to 40mA
• Io Accuracy: ±6.0%
• Features Error Detection: -
• Features Gain Control: -
• Features Pwm Dimming: 7-bit
• Other Features & Functions: 2-wire interface
• Rohs Compatible Product(s) (#): Available

9. Points to Note when Setting Up the TB62779FNG
1.
2.
3. ID configuration sequence
4. ID configuration
ID Configuration Not Allowed
External resistors for specifying the LED driving current (Rext-R, Rext-G, Rext-B)
External resistors should be separately connected to the Rext-R, Rext-G and Rext-B pins. Three resistors must not be
collectively connected to a single pin.
External resistors for ID configuration
The total resistance value of three external resistors used for specifying a device ID (which are connected between
Vcc and GND) should be about 30 kΩ or lower.
(A recommended value will be clearly defined after the TB62779FNG is completed.)
ID configuration can be performed after POR is released upon powering on. However, to avoid false operation of the
ID configuration, transient input signals of less than two clock cycles of the reference clock for the internal oscillator
are not accepted.
Make sure to set IDs after releasing reset condition.
Care should be taken during the period between the POR released timing
and the timing when power supply has reached the rated Vcc voltage.
2 V
ID Configuration Allowed
Vcc
8
ID Configuration Not Allowed
1.8 V
TB62779FNG
2010-07-21