The TB62718AFG is an LED driver which is suitable for driving full-color LED modules. This device has built-in 8 bit PWM grayscale and an output current adjustment functions. It can turn on to 16 LEDs. This device has a heat sink fitting side on the surface of the package. Then, a heat sink will dissipate heat generated in the device. In addition, this device incorporates built-in TSD (thermal Shutdown) and output-open detection functions to protect the device.

FEATUREs
• Output current capability and number of outputs: 90 mA × 16 outputs
• Constant current range: 5 mA~75 mA
• Application output voltage: 0.7 V (output current 5 mA~90 mA)
• Adjustment function
   1. Standard current adjustment (8-bit serial data input)
      This function supports standard current adjustment using an external resistance connected
         to the REXT pin.
         2 high-order bits … Output current can be adjusted to any one of 4 levels in the range
            25%~100%.
         6 low-order bits … Output current can be adjusted to any one of 64 levels in the range
            40%~100%.
   2. Each dot adjustment (128-bit serial data input)
      This function allows adjustment of the current value for each output (dot).
         … Output current can be adjusted to any one of 64 levels in the range 20%~100%.
   3. All dot adjustment 1 (8-bit parallel data input)
      This function allows adjustment of brightness for each LED module.
         5 low-order bits … Output current can be adjusted to any one of 32 levels in the range
            50%~100%.
   4. All dot adjustment 2 (8-bit parallel data input)
      This function allows changes to the frequency of the PWM clock and allows major brightness
         adjustment for the display.
         3 high-order bits … PWM clock frequency can be adjusted to any one of 8 levels in the range
            1/1~1/8.
   5. 256-grayscale PWM function (8-bit parallel input)
      This function controls the pulse width for each output, yielding 256 grayscales.
      Maximum PWM clock frequency 10 MHz (for all temperature range), Minimum pulse width
         2 ms
   • Accuracy of bits in constant-current output levels prior to adjustment
      ±6.0% max (for output current of 40 mA~80 mA)
      ±7.0% max (for output current of 20 mA~40 mA)
      ±12.0% max (for output current of 5 mA~20 mA)
• Protection functions
   1. Thermal shutdown function (TSD)
      This function monitors the rise in junction temperature.
      Connect a pull-up resistor to the ALARM1 pin in order to monitor the temperature.
   2. Output Pin Open Detection function
      This function detect when an output pin is open.
      Connect a pull-up resistor to the ALARM2 pin in order to monitor this.
• For anode-common LEDs
• Input signal voltage level: CMOS level (Schmitt trigger input)
• Power supply voltage range VDD = 4.5 V~5.5 V
• Maximum output pin voltage: 26 V
• Serial and parallel data transfer rate: 20 MHz (max, cascade connection)
• Operating temperature range Topr = −40°C~85°C
• Package: HQFP64-P-1010-0.50. A Heat sink can be fitted.