Rainbow Electronics MAX16825 - Manual (Page 2)

MAX16824/MAX16825
High-Voltage, Three-Channel Linear
High-Brightness LED Drivers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN to GND ...............................................................-0.3V to +30V
OUT1, OUT2, OUT3 to GND ..................................-0.3V to +40V
CS1, CS2, CS3, REG to GND...................................-0.3V to +6V
PWM1, PWM2, PWM3 to GND .................................-0.3V to +6V
DIN, CLK, LE, OE, DOUT to GND ............................-0.3V to +6V
Maximum Current into Any Pin
(except OUT1, OUT2, OUT3) ........................................±20mA
Maximum Current into OUT1, OUT2, OUT3......................160mA
Continuous Power Dissipation (T A
= +70°C)
16-Pin TSSOP-EP (derate 18.9mW/°C above +70°C)....1500mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V IN = 12V, C REG = 1µF to GND, I REG = 0, R CS_ = 2Ω from CS_ to GND, T J = T A = -40°C to +125°C, unless otherwise noted. Typical
values are at T
J
= T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V IN 6.5 28.0 V
GND Current I GND I OUT1 = I OUT2 = I OUT3 =100mA 5 10 mA
10mA < I OUT_ < 100mA 5 LED Current-Sense Accuracy
(Note 2)
10mA < I OUT_ < 150mA 7
%
I
OUT_
= 100mA (current pulsed) 0.75 1.5
Dropout Voltage (Note 3) ΔV
DO
I OUT_ = 150mA (current pulsed) 1.2 2.25
V
Output Current Slew Rate Current rising, V OUT = 4V 100 mA/µs
Output Current Leakage I LEAK PWM1 = PWM2 = PWM3 = 0V 1 µA
CURRENT SENSE
Regulated CS_ Voltage V CS_ V CS1 = V CS2 = V CS3 190 200 210 mV
OVERTEMPERATURE PROTECTION
Thermal Shutdown Temperature 165 °C
Thermal Shutdown Hysteresis 23 °C
+5V REGULATOR (REG)
Output Voltage V REG I REG = 0mA (Note 4) 4.75 5 5.25 V
REG Output Current I REG 4.75V < V REG 4 mA
REG Short-Circuit Current I REGSC V REG = 0V (Note 5) 15 40 90 mA
LOGIC INPUT (PWM1, PWM2, PWM3)
PWM_ Input Bias Current I PWM V PWM1 = V PWM2 = V PWM3 = 5V 1 µA
PWM_ Input-Voltage High V IH 4 V
PWM_ Input-Voltage Low V
IL
0.6 V
PWM_ Turn-On Delay 50% of V PWM_ to 50% of ΔV
OUT_ 475 ns
PWM_ Turn-Off Delay 50% of V PWM_ to 50% of ΔV
OUT_ 150 ns