MAX16818ETI+ Maxim Integrated Products, MAX16818ETI+ Datasheet - Page 8

• Manufacturer Part Number: MAX16818ETI+
• Description: IC LED DRIVR PWM CONTROL 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: PWM Controlr

Specifications of MAX16818ETI+

• Topology: High Side, Low Side, PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive, Backlight
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 125kHz ~ 1.5MHz
• Voltage - Supply: 4.75 V ~ 5.5 V, 7 V ~ 28 V
• Voltage - Output: 5.1V
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30A
• Internal Switch(s): Yes
• Low Level Output Current: 4 A
• High Level Output Current: 4000000 uA (Typ)
• Operating Supply Voltage: 7 V to 28 V
• Maximum Supply Current: 5.5 mA
• Maximum Power Dissipation: 2758 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.5MHz, 30A High-Efficiency, LED Driver
with Rapid LED Current Pulsing
8
_______________________________________________________________________________________
PIN
21
23
24
26
27
28
—
SENSE+
SENSE-
NAME
CSP
V
V
EP
IN
CC
DD
Current-Sense Differential Amplifier Positive Input. The differential voltage between CSN and CSP is
amplified internally by the current-sense amplifier (gain = 34.5) to measure the inductor current.
Differential LED Current-Sensing Negative Input. SENSE- is used to sense the LED current. Connect
SENSE- to the negative side of the LED current-sense resistor.
Differential LED Current-Sensing Positive Input. SENSE+ is used to sense the LED current. Connect
SENSE+ to the positive side of the LED current-sense resistor.
Supply Voltage Connection. Connect IN to V
Internal +5V Regulator Output. V
and 0.1µF ceramic capacitors.
Supply Voltage for Low-Side and High-Side Drivers. Connect a parallel combination of 0.1µF and 1µF
ceramic capacitors to PGND and a 1Ω resistor to V
from internal circuitry.
Exposed Paddle. Connect the exposed paddle to a copper pad (SGND) to improve power
dissipation.
CC
is derived from the IN voltage. Bypass V
CC
FUNCTION
for a +5V system.
CC
Pin Description (continued)
to filter out the high peak currents of the driver
CC
to SGND with 4.7µF