MAX16818ATI+ Maxim Integrated Products, MAX16818ATI+ Datasheet - Page 12

• Manufacturer Part Number: MAX16818ATI+
• Description: IC LED DRIVR PWM CONTROL 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: PWM Controlr

Specifications of MAX16818ATI+

• 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 ~ 125°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: + 125 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
Figure 4. Application Circuit for a Ground-Referred Buck-Boost LED Driver
12
V
LED
______________________________________________________________________________________
C10
C9
R3
C11
R10
R12
R11
C8
R4
18
17
19
15
16
20
21
CLP
OVI
EAOUT
DIFF
EAN
CSN
CSP
SGND
14
LIM
22
SENSE- SENSE+
V_IOUT RT/SYNC
13
R5
23
12
24
C3
MAX16818
SGND
EN
11
25
V
C7
Typical Application Circuits (continued)
ON/OFF
IN
PGOOD CLKOUT
R6
10
26
IN
C6
V
CC
V
27
9
CC
V
CC
C5
R8
SGND
V
PGND
28
8
DD
N.C.
N.C.
BST
LX
DL
DH
4
7
6
5
3
2
1
R7
D2
Q1
Q2
C4
7V TO 18V
V
IN
L1
R1
Q3
C2
C1
D1
V
LED
LED
STRING
R2