AN34042A 데이터 시트보기 (PDF) - Panasonic Corporation
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AN34042A Datasheet PDF : 24 Pages
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10. Backlight Units
10-1 LED driver ICs for LCD TV backlights
¢ Overview
These parts are LED driver ICs for LCD TV backlights.
AN37010A: Uses a high-breakdown-voltage process and incorporates 185 V-rated output transistors to enable serial drive of
multiple LEDs.
AN37012A: Incorporates a built-in heat generation countermeasures circuit to reduce the amount of heat generated by the IC.
¢ Product Information
Part No. Input Voltage (V)
AN37010A 10.5 to 55
AN37011B 10.5 to 55
△ AN37012A 10.5 to 40
△ AN37012B 10.5 to 40
△ AN37015A 10.5 to 40
△ AN37017A 10.5 to 55
Output Voltage (V)
max185V
max185V
max58V
max58V
max58V
max185V
Function
Package
4ch internal support (200 mA DC max. per channel); Boost DC-DC (external power MOS transistor);
PWM intensity adjustment; Linear intensity adjustment support; Built-in protection functions
HSOP042-P-0400H
4ch internal support (185 V/200 mA DC max. per channel); PWM intensity adjustment; Linear
intensity adjustment support; Built-in protection functions
HSOP056-P-0300F
6ch internal support (58 V/200 mA DC max. per channel); Heat generation countermeasures circuit; Boost DC-DC (external
power MOS transistor); PWM intensity adjustment; Linear intensity adjustment support; Built-in protection functions
LQFP064-P-1414
6ch internal support (58 V/200 mA DC max. per channel); Heat generation countermeasures circuit; Boost DC-DC (external
power MOS transistor); PWM intensity adjustment; Linear intensity adjustment support; Built-in protection functions
HSOP056-P-0300F
4ch internal support (58 V/300 mA DC max. per channel); Heat generation countermeasures circuit; Boost DC-DC (external
power MOS transistor); PWM intensity adjustment; Linear intensity adjustment support; Built-in protection functions
HSOP042-P-0400H
2ch internal support (185 V/300 mA DC max. per channel); Heat generation countermeasures circuit; Boost DC-DC (external
power MOS transistor); PWM intensity adjustment; Linear intensity adjustment support; Built-in protection functions
HSOP042-P-0400H
△ : Engineering samples available
¢ Applications
¢ Image Sample
Example of 4ch architecture
HSOP056-P-0300F HSOP042-P-0400H LQFP064-P-1414
¢ Points on Appeal (Features))
• Internal high-efficiency DC-DC converter (except AN37011B)
• H igh-breakdown-voltage process (with an IC rating of 185 V) is used
to enable serial drive of multistage LEDs (AN37010A/AN37011B/
AN37017A).
• Internal protection functions (over-voltage, over-current,
temperature, LED open-circuit/short-circuit detection)
• Internal heat generation countermeasures circuit (AN37012A/
37012B/AN37015A/AN37017A)
10-2 Inverter Units (MOS FET)
¢ Overview
Achieves the industry's top class of low RDS (on) through the use of cutting-edge processes. In addition, expansion into
compact packages contributes to reduction of set size.
¢ Product Information
Polarity
Pch
Nch
Nch × 2
Pch + Nch
Function
FJ330301
FK330301
FK3F0301
FK330601
FC694301
FC694601
FG694301
Configuration
Single
Dual
VDSS (V)
-30
30
60
30
60
-30
30
ID (A)
-0.1
0.1
0.1
0.1
0.1
-0.1
0.1
RDS(on) typ. (W)
VGS = 2.5 V VGS = 4 V
7
4
3
2
8
6
3
2
8
6
7
4
3
2
Ciss (pF)
12
Package
SSSMini3-F2-B
SSSMini3-F2-B
ML3-N4-B
SSSMini3-F2-B
SSMini6-F3-B
¢ Applications
¢ Image Sample
SSSMini3-F2-B
SSMini6-F3-B
Regulator
Switch for
shutdown
PD
VCC
Current
Amp.
IOUT
GND
Iout × RL = Vin
Vo
RL
GPIO
ConAvDerter
Analog
Port
CPU
LED Driver
LED Driver
LED for
LCD back light
10 Key LED
0.8 × 1.2 × 0.51
1.2 × 1.6 × 0.55
¢ Points on Appeal (Features)
• Low RDS(on)
• Compact package
• Use halogen-free resin in all products
18
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