MAX16805_07 Datasheet, PDF (2/19 Pages) Maxim Integrated Products – EEPROM-Programmable, High-Voltage, 350mA LED Drivers with LED Current Foldback

EEPROM-Programmable, High-Voltage, 350mA
LED Drivers with LED Current Foldback
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +45V
DIM, OUT, EN to GND ................................-0.3V to (V_IN + 0.3V)
IN Slew Rate (20V < V_IN < 45V) ...................................250mV/µs
SDA, SCL (MAX16805), TFN/SDA,
TFP/SCL (MAX16806) to GND...............................-0.3V to +6V
CFD, CS+, V5 to GND ..............................................-0.3V to +6V
DGND and CS- to GND.........................................-0.3V to +0.3V
OUT Short Circuited to GND Duration (V_IN < +16V)..........1 hour
Maximum Current Into Any Pin (except IN and OUT) ......±20mA
Continuous Power Dissipation (T_A = +70°C)
20-Pin Thin QFN (derate 34.5mW/°C above +70°C)....2758.6mW
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
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.
ELECTRICAL CHARACTERISTICS
(V_IN = V_EN = 12V, C_V5 = 0.1µF, I_V5 = 0, CS- = GND, R_SENSE = 0.56Ω, V_DIM = 4V, DGND = GND, TFP/SCL = 5V, TFN/SDA = 0V,
SW = CFD = Open, T_A = T_J = -40°C to +125°C, unless otherwise noted. Typical values are at T_A = +25°C.) (Note 1)
PARAMETER
Supply Voltage Range
Ground Current
Shutdown Supply Current
Guaranteed Output Current
Output Current Accuracy
Dropout Voltage (Note 3)
Output Current Slew Rate
(External PWM Signal at DIM)
Short-Circuit Current
ENABLE INPUT
EN Input Current
EN Input-Voltage High
EN Input-Voltage Low
Enable Turn-On Time
5V REGULATOR
SYMBOL
CONDITIONS
MIN
V_IN
(Note 2)
5.5
I_G
I_LOAD = 350mA
I_SHDN
V_EN ≤ 0.3V
I_OUT
R_SENSE = 0.55Ω
350
35mA < I_OUT < 350mA, R_SENSE tolerance
not included
ΔV_DO
I_OUT = 350mA, 12V < V_IN < 40V
I_OUT = 350mA, 6.5V < V_IN < 12V
Current rising, DIM rising to 4V
Current falling, DIM falling to 0.6V
V_OUT = 0V
TYP MAX UNITS
40
V
2.5
4.5
mA
12
40
µA
mA
3.0
%
0.4
1.2
V
0.5
1.5
17
mA/µs
17
600
mA
I_EN
V_IH
V_IL
t_ON
EN rising edge to 90% of OUT
100
nA
2.8
V
0.6
V
225
µs
Output Voltage Regulation
(MAX16806)
0 < I_V5 < 0.5mA,
SW = GND
4.9
5.1
5.3
V5
6.5V < V_IN < 40V
V
0 < I_V5 < 2mA,
SW = open
4.9
5.1
5.3
Output Voltage Regulation
(MAX16805)
V5
0 < I_V5 < 2mA, 6.5V < V_IN < 40V
4.9
5.1
5.3
V
CURRENT SENSE
Regulated R_SENSE Voltage
Input Current (CS+)
Input Current (CS-)
V_RSNS
V_SENSE = [V_CS+ - V_CS-], Binning
Adjustment register at factory default
(0x0F)
V_CS+ = 210mV
V_CS+ = 210mV
192
198
204
mV
12
µA
-75
µA
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