HV9980WG-G Supertex, HV9980WG-G Datasheet
HV9980WG-G
Manufacturer Part Number
HV9980WG-G
Description
LED Drivers 3-CHNL LED ARRAY DRIVER IC
Manufacturer
Supertex
Datasheet
1.HV9980WG-G.pdf
(2 pages)
Specifications of HV9980WG-G
Operating Supply Voltage
100 V to 160 V
Maximum Supply Current
3000 uA
Maximum Power Dissipation
1300 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SO-24
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HV9980WG-G
Manufacturer:
SUPERTEXI
Quantity:
1 211
Applications:
►
►
►
LCD panel backlighting
DLP TV controller
RGB decorative lighting
24-Lead SOW (WG)
Summary
Product
Sheet
032911
Product Overview:
The HV9980 is a fully integrated, 3-channel, peak-current PWM controller for driving buck con-
verters in constant output current mode. It is optimized for use with a large array of LED strings,
where multiple HV9980 ICs share a common clock and the voltage reference is external to the
HV9980 for improved output current accuracy and uniform illumination.
The HV9980 has three built-in 160V, 25Ω switching MOSFETs that save board space and overall
system cost. The three output currents can be individually dimmed using either linear or PWM
dimming. In addition, the fast transient response of the IC’s current mode control supports local
dimming and scanning mode capability, ideal for backlighting large screen LCD TVs. Each CS
input is also equipped with a reset switch that can be used for an optional external slope com-
pensation circuit to achieve a duty cycle greater than 50%. The output signal polarity select pin
(POL) is included for inverse polarity of the output signal.
Additional features of the HV9980 include output short-circuit and over-temperature protection.
The HV9980 delivers excellent performance while providing the most cost-effective solution for
LED-backlit systems.
V
Features:
Three integrated 160V, 25Ω (typ.) MOSFETs
Leading edge blanking
Peak current mode control
Dedicated PWM dimming inputs
Short-circuit and over-temperature protection Prevents destructive failures
DD
PWMD1
PWMD2
PWMD3
CLK
POL
AGND
VDD1
V
IN
CS1 RSENSE1
3-Channel LED Array Driver IC
DRAIN1
Typical Application Circuit
PGND1
VDD2
CS2
HV9980
DRAIN2
RSENSE2
Benefits:
Highly integrated LED driving solution
Prevents false triggering of current sense
comparators
Simple control mode and fast transient
response
For precise dimming of individual LED strings
Supertex inc.
PGND2
VDD3
RSENSE3
DRAIN3
CS1
HV9980
PGND3
REF2
REF3
REF1
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HV9980WG-G Summary of contents
Page 1
... Typical Application Circuit HV9980 DRAIN2 DRAIN3 RSENSE2 PGND2 VDD3 RSENSE3 CS1 Benefits: Highly integrated LED driving solution Prevents false triggering of current sense comparators Simple control mode and fast transient response For precise dimming of individual LED strings Supertex inc. REF1 REF2 REF3 PGND3 ...
Page 2
... LED Array Driver IC Ordering Information / Availability Part Number Package Option HV9980WG-G 24-Lead SOW (Wide Body) (Green) -G indicates the part is RoHS compliant (Green). Product Contact For any questions regarding the HV9980 please contact your local area Supertex sales office, or contact the main ...