MAX16834AUP+ Maxim Integrated Products, MAX16834AUP+ Datasheet - Page 6

• Manufacturer Part Number: MAX16834AUP+
• Description: IC LED DRVR HIGH BRIGHT 20-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: HBLED Driverr

Specifications of MAX16834AUP+

• Topology: 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), RGB
• Frequency: 100kHz ~ 1MHz
• Voltage - Supply: 4.75 V ~ 28 V
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details

High-Power LED Driver with Integrated High-Side LED
Current Sense and PWM Dimming MOSFET Driver
(V
R
6
RT
TQFN
IN
_______________________________________________________________________________________
1
2
3
4
5
6
= 10kΩ, T
= V
PIN
HV
TSSOP
= 12V, V
7.20
7.18
7.16
7.14
7.12
7.10
7.08
7.06
7.04
7.02
7.00
5.50
5.00
4.50
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
3
4
5
6
7
8
A
0
= +25°C, unless otherwise noted.)
6
0
V
T
IN
0.5
A
= 12V
= +125°C
UVEN
NAME
COMP
SGND
OVP+
10
REFI
REF
1.0 1.5 2.0 2.5
SC
= 5V, V
14
V
V
CLV
CC
T
I
A
CLV
V
LED-String Overvoltage Protection Input. Connect a resistive voltage-divider between the positive
output, OVP+, and LV to set the overvoltage threshold. OVP+ has a 1.435V threshold voltage with a
200mV hysteresis.
Signal Ground
Error-Amplifier Output. Connect an RC network from COMP to SGND for stable operation. See the
Feedback Compensation section.
3.7V Reference Output Voltage. Bypass REF to SGND with a 0.1μF to 0.22μF ceramic capacitor.
Current Reference Input. V
the LED current.
Current-Mode Slope Compensation Setting. Connect to an appropriate external capacitor from SC
to SGND to generate a ramp signal for stable operation.
= +25°C
IN
vs. V
vs. I
(mA)
(V)
18
LV
3.0 3.5
CLV
IN
= V
22
T
A
4.0
PWMDIM
= -40°C
4.5
26
Typical Operating Characteristics (continued)
5.0
= V
SGND
REFI
, C
provides a reference voltage for the current-sense amplifier to set
VCC
= 4.7μF, C
FUNCTION
LCV
5.10
5.09
5.08
5.07
5.06
5.05
5.04
5.03
5.02
5.01
5.00
50
40
30
20
10
0
= 100nF, C
6
0
V
IN
1
= 12V
10
2
NDRV RISE/FALL TIME
vs. CAPACITANCE
3
CAPACITANCE (nF)
V
14
RISE TIME
REF
CLV
4
V
HV
vs. V
= 100nF, R
5
(V)
Pin Description
18
6
HV
FALL TIME
7
22
V
IN
8
= 12V
SENSE+
26
9
10
= 0.1Ω,