Datasheet

V
CC
to AGND ........................................................-0.3V to +30V
Current into V
CC
(V
CC
> 24V) ...........................................30mA
V+ to PGND ............................................................-0.3V to +6V
OUT to AGND ........................................... -0.3V to (V
CC
+ 0.3V)
OUT Current (10µs duration) ................................................±1A
FB, COMP, CS, RTCT, REF to AGND ....................-0.3V to +6V
COMP Sink Current ............................................................10mA
OUT0–OUT15 to PGND ........................................ -0.3V to +40V
DIN, CLK, LE, OE, SET to PGND ...............-0.3V to (V+ + 0.3V)
DOUT Current ..................................................................±10mA
OUT0–OUT15 Sink Current ...............................................60mA
Total PGND Current (1s pulse time) ................................960mA
Continuous Power Dissipation (T
A
= +70°C)
38-Pin TQFN (derate 35.7mW/°C* above +70°C) .....2857mW
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
*Per JEDEC51 Standard (Multilayer Board).
(V
CC
= +15V, V+ = +3V to +5.5V referenced to PGND, R
T
= 10kΩ, C
T
= 3.3nF, REF = open, COMP = open, C
REF
= 0.1µF, V
FB
= 2V,
CS = AGND, AGND = PGND = 0V; all voltages are measured with respect to AGND, unless otherwise noted. T
J
= T
A
= -40°C to +125°C,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
REFERENCE
Output Voltage V
REF
I
REF
= 1mA, T
J
= +25°C 4.95 5 5.05 V
Line Regulation ∆V
LINE
12V< V
CC
< 25V, I
REF
= 1mA 0.4 4 mV
Load Regulation ∆V
LOAD
1mA < I
REF
< 20mA 6 50 mV
Total Output-Voltage Variation V
REFT
(Note 2) 4.875 5.125 V
Output Noise Voltage V
NOISE
10Hz < f < 10kHz 50 µV
Output Short-Circuit Current I
SHORT
V
REF
= 0V 30 180 mA
OSCILLATOR
Initial Accuracy T
J
= +25°C 51 54 57 kHz
Voltage Stability 12V < V
CC
< 25V 0.2 0.5 %
Temperature Stability 1 %
RTCT Ramp Peak-to-Peak 1.7 V
RTCT Ramp Valley 1.1 V
Discharge Current I
DIS
V
RTCT
= 2V, T
J
= +25°C 7.9 8.3 8.7
mA
V
RTCT
= 2V, -40
o
C ≤ T
J
≤ +125°C 7.5 8.3 9.0
Frequency Range f
OSC
20 1000 kHz
ERROR AMPLIFIER
FB Input Voltage V
FB
FB shorted to COMP 2.45 2.5 2.55 V
Input Bias Current
I
B(FB)
-0.01 -0.1 µA
Open-Loop Gain A
VOL
2V ≤ V
COMP
≤ 4V 100 dB
Unity-Gain Bandwidth f
GBW
1 MHz
Power-Supply Rejection Ratio PSRR 12V ≤ V
CC
≤ 25V 60 80 dB
COMP Sink Current I
SINK
V
FB
= 2.7V, V
COMP
= 1.1V 2 6 mA
COMP Source Current I
SOURCE
V
FB
= 2.3V, V
COMP
= 5V 0.5 1.2 1.8 mA
COMP Output-Voltage High V
OH
V
FB
= 2.3V, R
COMP
= 15kΩ to AGND 5 5.8 V
COMP Output-Voltage Low V
OL
V
FB
= 2.7V, R
COMP
= 15kΩ to V
REF
0.1 1.1 V
www.maximintegrated.com
Maxim Integrated │ 2
MAX16809 Integrated 16-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
Electrical Characteristics (PWM Controller)
Stresses beyond those listed under “bsolute 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.
Absolute Maximum Ratings