MAX16816 Datasheet, PDF (11/33 Pages) Maxim Integrated Products – Programmable Switch-Mode LED Driver with Analog-Controlled PWM Dimming

Programmable Switch-Mode LED Driver
with Analog-Controlled PWM Dimming
Typical Operating Characteristics (continued)
(V_CC = V_UVEN = 14V, C_REG1 = 1µF, C_REG2 = 10µF, C_CLMP = 0.1µF, R_CS = 0.1Ω, Binning adjustment register is ‘0000’, T_A = +25°C,
unless otherwise noted.)
REF VOLTAGE
vs. TEMPERATURE
3.12
3.10
3.08
3.06
3.04
3.02
3.00
2.98
IREF = 100μA
2.96
-60 -35 -10 15 40 65 90 115 140
TEMPERATURE (°C)
REF VOLTAGE
vs. SINK CURRENT
3.025
3.020
3.015
3.010
3.005
3.000
-225 -175 -125 -75 -25 25 75 125 175 225
IREF (μA)
PWM OSCILLATION FREQUENCY
vs. TEMPERATURE
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
RT = 100kΩ
120
-60 -35 -10 15 40 65 90 115 140
TEMPERATURE (°C)
RT RESISTANCE
vs. PWM FREQUENCY
550
500
450
400
350
300
250
200
150
100
0.005
0.015 0.025 0.035
1/RT RESISTANCE (kΩ^-1)
0.045
200Hz DIMMING OPERATION
MAX16816 toc17
LED CURRENT DUTY CYCLE
vs. DIM VOLTAGE
100
90
80
10%
DIMMING
70
0A
1A/div
60
50%
50
DIMMING
0A
1A/div
40
30
90%
DIMMING
20
0A
1A/div
10
2ms/div
0
0
1
2
3
DIM VOLTAGE (V)
70
60
50
40
30
20
10
0
5
DRIVER DRV RISE TIME
vs. DRI VOLTAGE
5nF CAPACITOR CONNECTED
FROM DRV TO AGND
7
9
11
13
15
DRI VOLTAGE (V)
45
40
35
30
25
20
15
10
5
0
5
DRIVER DRI FALL TIME
vs. DRI VOLTAGE
5nF CAPACITOR CONNECTED
FROM DRV TO AGND
7
9
11
13
15
DRI VOLTAGE (V)
______________________________________________________________________________________ 11