MXHV9910BTR IXYS, MXHV9910BTR Datasheet - Page 81

• Manufacturer Part Number: MXHV9910BTR
• Description: IC LED DRIVER HIGH BRIGHT 8-SOIC
• Manufacturer: IXYS
• Type: HBLED Driverr

Specifications of MXHV9910BTR

• Topology: AC DC Offline Switcher, PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Backlight
• Type - Secondary: High Brightness LED (HBLED), RGB
• Frequency: 64kHz
• Voltage - Supply: 8 V ~ 450 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature: -40°C ~ 85°C
• Internal Switch(s): No
• Efficiency: 90%
• Operating Supply Voltage: 7.2 V to 8.4 V
• Maximum Power Dissipation: 2.5 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -

MXHV9911
Off-Line High Performance LED Driver
Features
• 8V to 250V Input Voltage Range
• Constant Frequency Current Mode Converter
• Closed Loop LED Current Control
• Resistor Programmable Slope Compensation
• Resistor Programmable Oscillator Frequency
• Linear or PWM Brightness Control
• Large PWM Dimming Ratio
• Open LED String (Over Voltage) Protection
• Shorted LED String (Over Current) Protection
• Multi-Device Synchronization Capability
• Capacitor Programmable Soft-Start Function
• Auxiliary Winding V
• SOIC-16 EP RoHS Compliant Package
Applications
• Flat Panel Display RGB Backlighting
• Signage and Decorative LED Lighting
• DC/DC or AC/DC LED Driver Applications
Functional Block Diagram and Typical Application
PWMD
SYNC
VIN
CIN
R1
R2
R3
RSLOPE
DD
ROSC
Operation Capability
13
10
15
1
6
8
9
7
C1
LEDSET
ROSC
PWMD
VIN
RSLOPE
SYNC
CSTH
VREXT
MXHV9911
L1
LEDCS
FAULT
COMP
_____
PGND
GATE
VDD
OVP
CS
12
11
16
14
CC1
2
4
3
5
CDD
RRMP
RC
CC2
General Description
The MXHV9911 is a high-efficiency off-line LED driver designed
to operate as a constant current source. MXHV9911 can operate
from 8Vdc to 250Vdc and the range can be extended by using
external zener diodes. The wide input operating voltage enables
a broad range of High Brightness (HB) LED applications that
include Off-Line. The MXHV9911 employs a constant frequency,
peak- current mode control with slope compensation that can
be configured as buck, boost, buck-boost or SEPIC
configuration. The user can program the oscillator frequency
and the slope compensation ramp to optimize efficiency and
external component size. Multiple MXHV9911 controllers can
be synchronized to an external clock applied to the SYNC pin.
The MXHV9911 can accomplish a very wide LED dimming
range by using a combination of analog and digital brightness
controls.
Ordering Information
Part No.
MXHV9911BE
MXHV9911BETR
RCS
M1
D1
RVOP2
RVOP2
M2
Description
SOIC-16 EP Tube
SOIC-16 EP Tape & Reel
RLED
VOUT
COUT
2000
100
Qty
59