Electrical Characteristics

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Electrical Characteristics

(VIN = 5V, TA = TJ = -40°C to +125°C (Note 1), unless otherwise noted. Limits are 100% tested at TA = +25°C. Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization.)

SUPPLY VOLTAGES
Supply Voltage VIN Operating voltage range 4.0 60 V
Input Current IIN VIN = 5V 4.2 6 mA
Input POR Threshold VIN-POR VIN rising 3.6 3.9 V
Charge Pump DRAINn Input Current IINQP 6 mA
Charge-Pump Operating Voltage VCPP 65 V
VDD_UVLO Rising Threshold UVLO_R_TH 1.61 1.69 V
VDD_UVLO Falling Threshold UVLO_F_TH 1.54 1.63 V
LED DIMMING
Internal Oscillator Frequency fOSC Used for charge pump and PWM dimming of LEDs 16.384 MHz
LED PWM Dimming Frequency Range fDIM 100 2000 Hz
LED SWITCHES
Single-Switch On-Resistance RDSON 0.060 Ω
On-Resistance with Series Switches 6–1 on 0.36 0.75 Ω
On-Resistance with Series Switches 12–7 on 0.36 0.75 Ω
Open LED Threshold (Rising) VOTH VOTH code = 0x0 12.0 14.0 15.0 V
VOTH code = 0x1 8.3 9.33 10.0
VOTH code = 0x2 4.0 4.66 5.1
Short LED Threshold (Rising) VSTH VSTH code = 000 1.26 1.40 1.54 V
VSTH code = 001 3.24 3.6 3.96
VSTH code = 010 3.6 4.00 4.4
VSTH code = 011 4.95 5.5 6.05
VSTH code = 100 5.4 6.0 6.6
VSTH code = 101 5.94 6.6 7.26
VSTH code = 110 6.48 7.2 7.92
VSTH code = 111 6.93 7.70 8.47
Maximum Switch Current ISW Thermally limited 1.6 A
LED Slew-Rate Setting 0 SR_LED_0 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x0 160 μs
LED Slew-Rate Setting 1 SR_LED_1 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x1 81 μs
LED Slew-Rate Setting 2 SR_LED_2 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x2 48 μs
LED Slew-Rate Setting 3 SR_LED_3 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x3 26 μs
LED Slew-Rate Setting 4 SR_LED_4 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x4 17 μs
LED Slew-Rate Setting 5 SR_LED_5 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x5 10 μs
LED Slew-Rate Setting 6 SR_LED_6 0 to 6V step, 10% to 90% rise/fall time, LED_SLEW[2:0] = 0x6 5.0 μs
DIGITAL INPUTS – CLKIN, Rx
Input High Voltage VIH 1.4 V
Input Low Voltage VIL 0.4 V
CLKIN Input Frequency fCLK 0.30 20.0 MHz
DIGITAL OUTPUTS – Tx, FLTB, CLKOUT
Output Low Voltage VOL ISINK = 2mA 0.4 V
CLKOUT High Voltage VOH ISRC = 2mA VDD - 0.4 V
THERMAL SHUTDOWN
Thermal Warning Threshold TH_WARN Rising temperature 140 °C
Thermal Warning Hysteresis 15 °C
Thermal Shutdown TH_SHDN Rising temperature 165 °C
Thermal Shutdown Hysteresis HYS_SHDN 15 °C
CHARGE PUMP
Charge-Pump Frequency fCPP 16.384 MHz
Charge-Pump Output Voltage VO VCPP - VCPN, ICPP = 350μA 3.7 6.0 V
Charge-Pump Power-Good Threshold VCPP_OK Rising threshold 4.0 V
UART TIMING
UART Write Bit Rate FUART MAX25608/MAX25608B/MAX25608C 10 950 kbps
UART Read Bit Rate FUART MAX25608/MAX25608C 10 950 kbps
UART Read Bit Rate FUART MAX25608B 10 580 kbps
Note 1: The MAX25608/MAX25608B/C is designed for continuous operation up to TJ = +125°C for 95,000 hours and TJ = +150°C for 5000 hours.

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