Datasheet

LED
Current
Control
8-Bit Resolution
LED2 Current
Reference
LED1 Current
Reference
H-Bridge
Driver
H-Bridge
LED2_ON
LED1_ON
LED2_ON
or
LED1_ON
Register LED2 Current Reference
Register LED1 Current Reference
TX_CTRL_SUP
Tx
I
LED
C
BULK
LED_DRV_SUP
External
Supply
AFE4490
www.ti.com SBAS602F –DECEMBER 2012–REVISED OCTOBER 2013
Figure 71. Transmit: H-Bridge Drive
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