MAX16831ATJ+T Maxim Integrated Products, MAX16831ATJ+T Datasheet - Page 2

• Manufacturer Part Number: MAX16831ATJ+T
• Description: IC LED DRIVR HIGH BRIGHT 32-TQFN
• Manufacturer: Maxim Integrated Products
• Type: HBLED Driverr

Specifications of MAX16831ATJ+T

• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED), RGB
• Frequency: 125kHz ~ 600kHz
• Voltage - Supply: 5.5 V ~ 76 V
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Lead Free Status / Rohs Status: Details

ABSOLUTE MAXIMUM RATINGS
V
CS+, CS-, DGT, UVEN to QGND............................-0.3V to +80V
UVEN to QGND ..........................................-0.3V to (V
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,
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
ELECTRICAL CHARACTERISTICS
(V
Typical specifications are at T
High-Voltage, High-Power LED Driver with
Analog and PWM Dimming Control
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.
2
Input Voltage Range
Supply Current
Shutdown Current
UVEN
V
V
UVEN Threshold
UVEN Input Current
REGULATORS
REG1 Regulator Output
REG1 Dropout Voltage
REG1 Load Regulation
REG2 Regulator Output
REG2 Dropout Voltage
REG2 Load Regulation
HIGH-SIDE REGULATOR (CLMP) (All Voltages Referred to LO) (Note 2)
CLMP UVLO Threshold
CLMP UVLO Threshold
Hysteresis
CC
RTSYNC to AGND .................................................-0.3V to +6V
CC
CC
CC
, HI, LO, CLMP to QGND .................................-0.3V to +80V
_______________________________________________________________________________________
= V
UVLO Threshold
Threshold Hysteresis
UVEN
PARAMETER
= 14V, C
REG1
= 1µF, C
A
= +25°C.)
V
SYMBOL
V
V
CLMPHYS
REG2
V
V
V
V
CLMPTH
I
CC_HYS
I
V
ΔV/ΔI
ΔV/ΔI
V
SHDN
UVEN
V
CC_R
CC_F
REG1
REG2
UVR
I
UVF
CC
Q
= 1µF, C
I
V
V
V
V
V
V
0 ≤ I
I
I
V
7.5V ≤ V
V
I
V
V
REG2
REG1
REG1
REG2
UVEN
CC
CC
UVEN
UVEN
UVEN
CC
CC
CC
CLMP
CC
CLMP
REG1
rising
falling
= 7.5V, 0 ≤ I
= 5.7V, 0 ≤ I
= 7.5V, 0 ≤ I
= 0A
= 2mA, V
= 2mA (Note 1)
= 20mA (Note 1)
+ 0.3V)
≤ 0.8V
rising
falling
= 0V and V
rising
CC
= 0.1µF, R
≤ 2mA, 7.5V ≤ V
≤ 76V, I
CONDITIONS
CC
REG1
REG2
REG2
UVEN
= 5.7V
REG2
CS+, CS-, DGT, CLMP to LO ........................-0.3V to (HI + 0.3V)
HI to CLMP .............................................................-0.3V to +28V
Continuous Power Dissipation* (T
Thermal Resistance*
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).
T
32-Pin TQFN (derate 34.5mW/°C above +70°C) ........2758mW
θ
θ
= 25kΩ, T
≤ 2mA
≤ 20mA
≤ 20mA
JA
JC
= 76V, V
= 1mA
.................................................................................29°C/W
................................................................................1.7°C/W
CC
≤ 76V
A
CC
= T
= 77V
J
= -40°C to +125°C, unless otherwise noted.
1.100
1.000
4.75
4.00
6.65
MIN
-0.2
5.5
5.5
5.0
4.5
2.0
A
= +70°C)
1.244
1.145
TYP
5.00
4.50
7.00
0.22
2.7
0.4
0.5
5.0
0.5
2.5
25
1.360
1.260
MAX
+0.2
76.0
5.25
5.25
7.35
4.5
6.0
5.5
1.0
3.0
45
25
25
UNITS
mA
µA
µA
Ω
Ω
V
V
V
V
V
V
V
V
V
V