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MAX16831 Datasheet(PDF) 2 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) 2 Page - Maxim Integrated Products

 
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High-Voltage, High-Power LED Driver with
Analog and PWM Dimming Control
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(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.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC, HI, LO, CLMP to QGND .................................-0.3V to +80V
CS+, CS-, DGT, UVEN to QGND............................-0.3V to +80V
UVEN to QGND ..........................................-0.3V to (VCC + 0.3V)
DRV to SGND .........................................................-0.3V to +18V
DRI, REG2, DIM to AGND ......................................-0.3V to +18V
QGND, SGND to AGND ........................................-0.3V to +0.3V
SNS+ to SNS- ...........................................................-0.3V to +6V
CS, FB, COMP, SNS+, SNS-, OV, REF,
RTSYNC to AGND .................................................-0.3V to +6V
REG1, CLKOUT to AGND ........................................-0.3V to +6V
CS+ to CS- .............................................................-0.3V to +12V
HI to LO ..................................................................-0.3V to +36V
CS+, CS-, DGT, CLMP to LO .................................-0.3V to +12V
CS+, CS-, DGT, CLMP to LO ........................-0.3V to (HI + 0.3V)
HI to CLMP .............................................................-0.3V to +28V
Continuous Power Dissipation* (TA = +70°C)
32-Pin TQFN (derate 34.5mW/°C above +70°C) ........2758mW
Thermal Resistance*
θJA.................................................................................29°C/W
θJC................................................................................1.7°C/W
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Reflow Temperature.........................................................+240°C
Lead Temperature (soldering, 10s) .................................+300°C
*As per JEDEC 51 standard, multilayer board (PCB).
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
VCC
5.5
76.0
V
Supply Current
IQ
IREG2 = 0A
2.7
4.5
mA
Shutdown Current
ISHDN
VUVEN
≤ 0.8V
25
45
µA
UVEN
VCC_R
VCC rising
5.5
6.0
VCC UVLO Threshold
VCC_F
VCC falling
5.0
5.5
V
VCC Threshold Hysteresis
VCC_HYS
0.4
V
VUVR
VUVEN rising
1.100
1.244
1.360
UVEN Threshold
VUVF
VUVEN falling
1.000
1.145
1.260
V
UVEN Input Current
IUVEN
VUVEN = 0V and VUVEN = 76V, VCC = 77V
-0.2
+0.2
µA
REGULATORS
0
≤ IREG1 ≤ 2mA, 7.5V ≤ VCC ≤ 76V
4.75
5.00
5.25
REG1 Regulator Output
VREG1
IREG1 = 2mA, VCC = 5.7V
4.00
4.50
5.25
V
REG1 Dropout Voltage
IREG1 = 2mA (Note 1)
0.5
1.0
V
REG1 Load Regulation
∆V/∆IVCC = 7.5V, 0 ≤ IREG1 ≤ 2mA
25
7.5V
≤ VCC ≤ 76V, IREG2 = 1mA
6.65
7.00
7.35
REG2 Regulator Output
VREG2
VCC = 5.7V, 0
≤ IREG2 ≤ 20mA
4.5
5.0
V
REG2 Dropout Voltage
IREG2 = 20mA (Note 1)
0.5
V
REG2 Load Regulation
∆V/∆IVCC = 7.5V, 0 ≤ IREG2 ≤ 20mA
25
HIGH-SIDE REGULATOR (CLMP) (All Voltages Referred to LO) (Note 2)
CLMP UVLO Threshold
VCLMPTH
VCLMP rising
2.0
2.5
3.0
V
CLMP UVLO Threshold
Hysteresis
VCLMPHYS
0.22
V


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