MAX16834AGP/VY+T Maxim Integrated, MAX16834AGP/VY+T Datasheet - Page 6

• Manufacturer Part Number: MAX16834AGP/VY+T
• Description: LED Lighting Drivers High-Power LED Driver with Integrated High-Side LED Current Sense and PWM Dimming MOSFET Driver
• Manufacturer: Maxim Integrated

Specifications of MAX16834AGP/VY+T

• Input Voltage: 4.75 V to 28 V
• Maximum Supply Current: 10 mA
• Power Dissipation: 2051 mW

High-Power LED Driver with Integrated High-Side LED
Current Sense and PWM Dimming MOSFET Driver
(V
R
MAX16834
6
Q F N , T Q F N
RT
IN
= 10kΩ, T
= V
1
2
3
4
5
6
HV
PIN
= 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
A
TSSOP
0
= +25°C, unless otherwise noted.)
6
0
3
4
5
6
7
8
V
T
IN
0.5
A
= 12V
UVEN
= +125°C
10
1.0 1.5 2.0 2.5
NAME
COMP
SGND
OVP+
REFI
REF
= 5V, V
SC
14
V
V
CLV
CC
T
I
A
CLV
V
= +25°C
IN
vs. V
vs. I
(mA)
(V)
18
LV
3.0 3.5
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
Current Reference Input. V
set 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.
CLV
IN
= V
22
T
A
4.0
= -40°C
PWMDIM
4.5
26
Typical Operating Characteristics (continued)
5.0
= V
SGND
, C
REFI
VCC
provides a reference voltage for the current-sense amplifier to
= 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
8
IN
= 12V
SENSE+
26
9
Maxim Integrated
10
= 0.1Ω,