MAX6946ATE+
Active10-PORT, CONSTANT-CURRENT LED DRIVER AND I/O EXPANDER WITH PWM INTENSITY CONTROL
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MAX6946ATE+
Active10-PORT, CONSTANT-CURRENT LED DRIVER AND I/O EXPANDER WITH PWM INTENSITY CONTROL
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX6946ATE+ |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 20 mA |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 10 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-TQFN (3x3) |
| Type | Linear |
| Voltage - Output | 7 V |
| Voltage - Supply (Max) [Max] | 3.6 V |
| Voltage - Supply (Min) [Min] | 2.25 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 4.64 | |
| 2100 | $ 4.64 | |||
| Strip | 100 | $ 4.02 | ||
Description
General part information
MAX6946 Series
The MAX6946/MAX6947 I²C-/SMBus™-compatible, serial-interfaced peripherals provide microprocessors with 10 I/O ports rated to 7V.Each port can be configured as a 2.5mA to 20mA constant-current LED driver (static or PWM), a 1.25mA to 10mA constant-current LED driver (static or PWM), an open-drain logic output, or an overvoltage-protected Schmitt logic input.Analog and switching LED intensity control includes individual 8-bit PWM control per output, individual 1-bit analog current control (half/full scale) per output, and a global 3-bit DAC current control that applies to all LED outputs.The MAX6946/MAX6947 can stagger the PWM timing of the 10-port outputs in consecutively phased 45° increments. Staggering the outputs spreads the PWM load currents over time in eight steps, helping to even out the power-supply current and reduce the RMS current.For a similar part with an SPI™-/QSPI™-/ or MICROWIRE™-compatible interface, refer to the MAX6966/MAX6967 data sheet.ApplicationsCellular PhonesKeypad BacklightsLCD BacklightsLED Status IndicatorsPortable EquipmentRGB LED Drivers
