MAX16834A/W+ Maxim Integrated, MAX16834A/W+ Datasheet - Page 2

• Manufacturer Part Number: MAX16834A/W+
• Description: LED Lighting Drivers MAX16834ATP+ in wafer form
• Manufacturer: Maxim Integrated

Specifications of MAX16834A/W+

• Input Voltage: 4.75 V to 28 V
• Maximum Supply Current: 10 mA
• Power Dissipation: 2051 mW

High-Power LED Driver with Integrated High-Side LED
Current Sense and PWM Dimming MOSFET Driver
ABSOLUTE MAXIMUM RATINGS
IN, HV, LV to SGND................................................-0.3V to +30V
OVP+, SENSE+, DIMOUT, CLV to SGND ..............-0.3V to +30V
SENSE+ to LV........................................................-0.3V to +0.3V
HV, IN to LV ............................................................-0.3V to +30V
OVP+, CLV, DIMOUT to LV ......................................-0.3V to +6V
PGND to SGND .....................................................-0.3V to +0.3V
V
NDRV to PGND...........................................-0.3V to (V
All Other Pins to SGND.............................................-0.3V to +6V
NDRV Continuous Current................................................±50mA
DIMOUT Continuous Current..............................................±2mA
PACKAGE THERMAL CHARACTERISTICS (Note 1)
Junction-to-Ambient Thermal Resistance (
ELECTRICAL CHARACTERISTICS
(V
R
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.
MAX16834
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
2
Input Voltage Range
Quiescent Supply Current
Shutdown Supply Current
INTERNAL LINEAR REGULATOR (V
Output Voltage
Dropout Voltage
Short-Circuit Current
LINEAR REGULATOR (CLV)
Output Voltage
Dropout Voltage
Short-Circuit Current
REFERENCE VOLTAGE (REF)
Output Voltage
REF Short-Circuit Current
UNDERVOLTAGE LOCKOUT/ENABLE INPUT (UVEN)
UVEN On Threshold Voltage
UVEN Threshold Voltage
Hysteresis
Input Leakage Current
PWMDIM
PWMDIM On Threshold Voltage
CC
RT
QFN, TQFN ........................................................................39°C/W
TSSOP .............................................................................37.7°C/W
IN
= 10kΩ, T
to SGND..........................................................-0.3V to +12V
= V
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
HV
PARAMETER
= 12V, V
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
UVEN
= 5V, V
V
LV
(V
UVEN_THUP
SYMBOL
V
CC
CLV -
PWMDIM
= V
I
I
θ
V
SHDN
V
V
LEAK
V
V
)
JA
I
REF
CC
DO
DO
Q
IN
)
PWMDIM
V
LV
)
Excluding I
V
0 ≤ I
I
V
0 ≤ I
6V ≤ V
I
V
0 ≤ I
V
V
CC
CLV
UVEN
CC
CLV
REF
UVEN
CC
= V
= 35mA (Note 2)
CC
CLV
REF
= 0V, V
= 2mA, 0 ≤ V
+ 0.3V)
= 0V
= 12V, V
SGND
(HV-LV)
= 0V
= 0V
≤ 50mA, 9.5V ≤ V
≤ 2mA, 6V ≤ V
≤ 1mA, 4.75V ≤ V
LED
, C
IN
≤ 22V
IN
CONDITIONS
= 12V
VCC
= 12V, V
LV
V
Continuous Power Dissipation (T
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
* As per JEDEC51 standard (multilayer board).
Junction-to-Case Thermal Resistance (
CC
= 4.7µF, C
QFN, TQFN (derate 25.6mW/°C* above +70°C).........2051mW
TSSOP (derate 26.5mW/°C above +70°C) .....................2122mW
QFN, TQFN .....................................................................6°C/W
TSSOP .............................................................................2°C/W
≤ 23.3V (Note 3)
HV
Short-Circuit Current to SGND Duration ...........................1s
IN
HV
IN
≤ 28V,
≤ 28V
≤ 28V
= 24V
LCV
= 100nF, C
A
= +25°C.)
3.625
1.395
1.395
MIN
4.75
6.3
4.7
2.2
80
REF
A
= +70°C)
= 100nF, R
1.435
1.435
TYP
0.65
3.70
200
30
30
θ
6
7
5
1
JC
)
3.775
1.475
1.475
MAX
SENSE+
300
7.7
5.3
0.5
28
10
60
10
1
Maxim Integrated
UNITS
= 0.1Ω,
mA
mA
mA
mA
mV
µA
µA
V
V
V
V
V
V
V
V