MAX16816 Datasheet, PDF (4/33 Pages) Maxim Integrated Products – Programmable Switch-Mode LED Driver with Analog-Controlled PWM Dimming

Programmable Switch-Mode LED Driver
with Analog-Controlled PWM Dimming
ELECTRICAL CHARACTERISTICS (continued)
(V_CC = V_UVEN = 14V, C_REG1 = 1µF, C_REG2 = 1µF, C_CLMP = 0.1µF, R_T = 25kΩ, T_A = T_J = -40°C to +125°C, unless otherwise noted.
Typical specifications are at T_A = +25°C.)
PARAMETER
SYMBOL
Driver Output Impedance
Z_{OUT_L}
Z_{OUT_H}
Peak Sink Current
I_SK
Peak Source Current
I_SR
PWM, ILIM, AND HICCUP COMPARATOR
PWM Comparator Offset
Voltage
CONDITIONS
V_DRI = 7.0V, DRV sinking 250mA
V_DRI = 7.0V, DRV sourcing 250mA
V_DRI = 7.0V
V_DRI = 7.0V
V_COMP - (V_SNS+ -V_SNS-)
MIN TYP MAX UNITS
2.8
4
Ω
5.0
8
2.5
A
1.4
A
0.8
V
Peak Current-Limit
Comparator Trip Threshold
160
200
245
mV
Peak Current-Limit
Comparator Propagation
Delay (Excluding Blanking
Time)
50mV overdrive
40
ns
HICCUP Comparator Trip
Threshold
SNS+ Input Bias Current
SNS- Input Bias Current
BLANKING TIME
V_SNS+ = 0V, V_SNS- = 0V
V_SNS+ = 0V, V_SNS- = 0V
Blanking Time Control Register is ‘00’
Blanking Time
Blanking Time Control Register is ‘01’
Blanking Time Control Register is ‘10’
Blanking Time Control Register is ‘11’
ERROR AMPLIFIER
FB Input Bias Current
EAMP Output Sink Current
EAMP Output Source Current
V_FB = 1V
V_FB = 1.735V, V_COMP = 1V
V_FB = 0.735V, V_COMP = 1V
EAMP Input Common-Mode
Voltage
V_COM
(Note 5)
EAMP Output Clamp Voltage
Voltage Gain
Unity-Gain Bandwidth
A_V
GBW
R_COMP = 100kΩ to AGND
R_COMP = 100kΩ to AGND, C_COMP = 100pF
to AGND
OSCILLATOR, OSC SYNC, CLK, AND CLKOUT
SYNC Frequency Range
RTSYNC Oscillator Frequency
SYNC High-Level Voltage
SYNC Low-Level Voltage
f_{SW_MIN}
f_{SW_MAX}
V_SIHL
V_SILL
RTOF bit set to ‘0’, R_T = 100kΩ
RTOF bit set to ‘0’, R_T = 25kΩ
235
300
385
mV
-100 -65
µA
-100 -65
µA
150
125
ns
100
75
-100
+100
nA
3
7
mA
2
7
mA
0
1.6
V
1.3
2.0
2.7
V
80
dB
0.5
MHz
125
kHz
500
106
125
143
kHz
475
500
525
2.8
V
0.4
V
4 _______________________________________________________________________________________