MAX16838_11 Datasheet, PDF (10/21 Pages) Maxim Integrated Products – Integrated, 2-Channel, High-Brightness LED Driver with High-Voltage Boost and SEPIC Controller

Integrated, 2-Channel, High-Brightness LED Driver
with High-Voltage Boost and SEPIC Controller
Pin Description (continued)
PIN
TQFN
TSSOP
16
19
17
20
18
1
19
2
20
3
—
—
NAME
DIM
CS
DRAIN
GATE
PGND
EP
FUNCTION
Digital PWM Dimming Input
Current-Sense Input. CS is the current-sense input for the switching regulator and is
also connected to the source of the internal power MOSFET. Connect a sense resistor
from CS to PGND to set the switching current limit.
Internal Switching MOSFET Drain Output
Internal Switching MOSFET Gate Input. Connect GATE to NDRV directly or through a
resistor to control the rise and fall times of the gate drive.
Power Ground. PGND is the high-switching current return path connection. Connect
SGND, LEDGND, and PGND at a single point.
Exposed Pad. EP is internally connected to SGND. Connect EP to a large-area
contiguous ground plane for effective power dissipation. Connect EP to SGND.
Do not use as the only ground connection.
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