MAX16831_09 Datasheet, PDF (6/19 Pages) Maxim Integrated Products – High-Voltage, High-Power LED Driver with Analog and PWM Dimming Control

High-Voltage, High-Power LED Driver with
Analog and PWM Dimming Control
Typical Operating Characteristics (continued)
(V_CC = V_UVEN = 14V, C_REG1 = 1µF, C_REG2 = 10µF, C_CLMP = 0.1µF, R_T = 25kΩ, R_CS = 0.1Ω, T_A = +25°C, unless otherwise noted.)
REG2 OUTPUT VOLTAGE
vs. TEMPERATURE
7.10
7.05
7.00
6.95
6.90
6.85
I_REG2 = 20mA
6.80
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
REG2 OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
8
7
6
5
4
3
2
1
I_REG2 = 20mA
0
0 5 10 15 20 25 30 35 40
SUPPLY VOLTAGE (V)
REG1 OUTPUT VOLTAGE
vs. TEMPERATURE
5.02
5.00
4.98
4.96
4.94
4.92
I_REG1 = 2mA
4.90
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
REG1 OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
6
5
4
3
2
1
I_REG1 = 2mA
0
0 5 10 15 20 25 30 35 40
SUPPLY VOLTAGE (V)
REF OUTPUT VOLTAGE
vs. TEMPERATURE
3.02
3.01
3.00
2.99
2.98
2.97
2.96
-60 -40 -20
I_REF = 100μA
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
CLMP REGULATOR VOLTAGE
vs. TEMPERATURE
8.3
8.2
8.1
8.0
7.9
7.8
7.7
7.6
7.5
-60 -40 -20
V_HI - V_LO = 11V
CLMP VOLTAGE = V_CLMP - V_LO
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
REF OUTPUT VOLTAGE
vs. LOAD CURRENT
3.02
3.01
3.00
2.99
2.98
2.97
2.96
-225 -175 -125 -75 -25 25 75 125 175 225
LOAD CURRENT (μA)
CLMP REGULATOR VOLTAGE
vs. (V_HI - V_LO)
9
8
7
6
5
4
3
2
CLMP REGULATOR VOLTAGE = V_CLMP - V_LO
1
0 5 10 15 20 25 30 35 40
V_HI - V_LO (V)
PWM OSCILLATOR FREQUENCY
vs. TEMPERATURE
530
520
510
500
490
480
470
-60 -40 -20
R_T = 25kΩ
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
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