Specifications

Lighting
LED lighting
www.digikey.com/maxim-industrial 135
Benefits
• Low external component count and low
BOM cost
– Hysteretic current control eliminates the
need for external compensation
– Integrated switching MOSFET: up to
1A (MAX16832) or 500mA (MAX16822)
output current
– Low 1µF input capacitor
• Industrial-grade devices, ideal for
rough environments
– 6.5V to 65V input range is compatible
with 12V/24V/48V inputs, and robust for
input voltage spikes
– -40°C to +125°C operating temperature
range
– High-power-dissipation capability in
an 8-pin SO-EP package (MAX16832)
for environments with high ambient
temperatures
– Thermal-foldback input protects LEDs
in case of overheating
MAX16822/MAX16832
The MAX16822/MAX16832 are high-input-voltage, buck-mode,
high-brightness (HB) LED drivers for up to 1A or 500mA current. With
hysteretic control of the LED current, they do not need a compensa-
tion circuit. They require very few external components, thus reducing
BOM cost and board area substantially compared to other solutions.
A switching MOSFET is included, and they feature an analog dimming
input with a nonlinear behavior for thermal foldback.
Industrial-grade LED drivers reduce external component count
LX
LXPGND
TEMP_I
DIMIN
GND
CS
MAX16822
MAX16832
L
R
SENSE
V
IN
C
IN
Typical operating circuit for the MAX16822/MAX16832.