MAX16819_15 Datasheet, PDF (3/9 Pages) Maxim Integrated Products – 2MHz High-Brightness LED Drivers with High-Side Current Sense and 5000:1 Dimming

MAX16819/MAX16820
2MHz High-Brightness LED Drivers with
High-Side Current Sense and 5000:1 Dimming
Electrical Characteristics (continued)
(V_IN = 12V, V_DIM = V_IN, C_VCC = 1µF, R_SENSE = 0.5Ω, T_A = T_J = -40°C to +125°C, unless otherwise noted. Typical values are at
T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
GATE DRIVER
Gate Driver Source Current
V_CSN = V_IN, V_DRV = 0.5 x V_CC
0.5
Gate Driver Sink Current
V_CSN = V_IN - 250mV, V_DRV = 0.5 x V_CC
1
Gate Driver Output-Voltage High
V_OH
I_DRV = 10mA
V_CC - 0.5
Gate Driver Output-Voltage Low
V_OL
I_DRV = -10mA
0.5
DIM INPUT
Maximum DIM Frequency
f_DIM
20
DIM Input-Voltage High
V_IH
V_CSN = V_IN, increase DIM until V_DRV >
(V_CC - 0.5V)
2.8
DIM Input-Voltage Low
V_IL
V_CSN = V_IN, decrease DIM until
V_DRV < 0.5V
0.6
DIM Hysteresis
DIM_HYS
200
DIM Turn-On Time
t_DIMON
DIM rising edge to V_DRV = 0.5 x V_CC,
C_DRV = 1nF
100
DIM Turn-Off Time
t_DIMOFF
DIM falling edge to V_DRV = 0.5 x V_CC,
C_DRV = 1nF
100
DIM Input Leakage High
V_DIM = V_IN
10
DIM Input Leakage Low
VCC REGULATOR
Regulator Output Voltage
Load Regulation
V_DIM = 0V
-1
+1
V_CC
I_VCC = 0.1mA to 10mA, V_IN = 5.5V to 28V
I_VCC = 0.1mA to 10mA, V_IN = 4.5V to 28V
4.5
4.0
5.5
5.5
I_VCC = 0.1mA to 10mA, V_IN = 12V
4
Line Regulation
V_IN = 6V to 28V, I_VCC = 10mA
11
Power-Supply Rejection Ratio
PSRR V_IN = 12V, I_VCC = 5mA, f_IN = 10kHz
-35
Current Limit
I_LIM
V_IN = 4.5V, V_CC = 0V
V_IN = 4.5V, V_CC = 4V
45
18
Regulator Startup Time
t_START V_CC = 0 to 4.5V
350
Note 1: All devices are 100% production tested at T_J = +25°C and +125°C. Limits to -40°C are guaranteed by design.
UNITS
A
A
V
V
kHz
V
V
mV
ns
ns
µA
µA
V
V
Ω
mV
dB
mA
mA
µs
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