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MAX16831 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part No. MAX16831
Description  High-Voltage, High-Power LED Driver with Analog and PWM Dimming Control
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX16831 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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High-Voltage, High-Power LED Driver with
Analog and PWM Dimming Control
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
8.7V
≤ (VHI - VLO) ≤ 36V, ICLMP = 1mA
5.5
8.0
10.0
CLMP Regulator Output Voltage
VCLMP
5.0V
≤ (VHI - VLO) ≤ 8.7V, ICLMP = 250µA
(VHI - VLO)
- 0.7
V
CURRENT-SENSE AMPLIFIER (CSA)
Differential Input Voltage Range
VCS+ -
VCS-
0
0.3
V
Common-Mode Range
0VCC
V
CS+ Input Bias Current
ICS+
VCS+ - VCS- = 0.3V
-250
+250
µA
CS- Input Bias Current
ICS-
VCS+ - VCS- = 0.3V
400
µA
Unity-Gain Bandwidth
From (CS+ - CS-) to CS
1.0
MHz
REF OUTPUT BUFFER
REF Output Voltage
VREF
-100µA
≤ IREF ≤ +100µA
2.85
3.00
3.15
V
DIM DRIVER
VCLMP - VLO = 4V
5
20
Source Current
VCLMP - VLO = 8V
30
67
mA
VCLMP - VLO = 4V
10
22
Sink Current
VCLMP - VLO = 8V
40
76
mA
GATE DRIVER
DRI UVLO Threshold
VUVLO_TH
DRI rising
4.0
4.2
4.4
V
DRI UVLO Threshold Hysteresis
VUVLO_HYST
0.3
V
ZOUT_L
VDRI = 7.0V, DRV sinking 250mA
2.8
4
Driver Output Impedance
ZOUT_H
VDRI = 7.0V, DRV sourcing 250mA
5.0
8
Peak Sink Current
ISK
VDRI = 7.0V
2.5
A
Peak Source Current
ISR
VDRI = 7.0V
1.4
A
PWM, ILIM, AND HICCUP COMPARATOR
PWM Comparator Offset Voltage
VCOMP - (VSNS+ - VSNS-)
0.7
V
Peak Current-Limit Comparator
Trip Threshold
160
200
240
mV
Peak Current-Limit Comparator
Propagation Delay (Excluding
Blanking Time)
50mV overdrive
40
ns
HICCUP Comparator Trip
Threshold
235
300
385
mV
SNS+ Input Bias Current
VSNS+ = 0V, VSNS- = 0V
-100
-65
µA
SNS- Input Bias Current
VSNS+ = 0V, VSNS- = 0V
-100
-65
µA
Blanking Time
tBLNK
40
ns
ELECTRICAL CHARACTERISTICS (continued)
(VCC = VUVEN = 14V, CREG1 = 1µF, CREG2 = 1µF, CCLMP = 0.1µF, RT = 25kΩ, TA = TJ = -40°C to +125°C, unless otherwise noted.
Typical specifications are at TA = +25°C.)


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