KA754⒊
先进的反馈调 光镇 流控 制集成 电路
特征
电流反馈
。
反馈软启动 ;
o-z伏 的反馈调光电压 关断控制 rV由 =5vl;
软启动调光电路控制
无灯保护
反馈检测
反常保护
低启动和 工作 电源电流
1.8V的 滞后 ULVO;
推拉输 出
微调度 1.5%的 内部参考禁带
;
;
;
;
;
;
;
;
14DIP&14sOP;
应用
电子镇 流
启动控制 系统
半桥式驱动控制系统
。
说明
KA7543是 先进的 电流反馈调光控制集成电路。该反馈调光镇 流控 制集成 电路提供
了所有实现 智能镇 流 系统 宽范围的反馈调 光控制 、软启动和恒定功耗 的必要性能。
KA7543录 适宜需要最 小接 线板 区域的 电子镇 流 系统。由于采用 了 KA7543,外 部元件
计数减少,逆 变器反馈 电流控制方法是 KA7543具 有的最佳性能方法之一。内部软启
动电路不需要 外部软启动分立元件。软 启动-调 光电路 的控制电压用以控制大范围的
照明翰出。其具有保护电路 、无灯保护 、反常保护、单灯检测:ULVO、 再启动附加功
・
能。
Ⅱ
lIi;
-53-
r
:
模块 内部结构示意图
ou”刂羽叫”
灬
`・
ˇ
A0aorm硖 卩oIedlon
No妇mpp“ 诳沦R蹄
-54-
管脚定义
管脚号
o‘
4
6
刁`
管脚 名
管脚 功能说明
0UT1
NC
Vcc
驱 动输 出端
无连接 端
Cc
V5
Vfb
Vab
V1d
补偿输 入 端
5V电 压 源
电源 电压 输 入
负反馈输入 端
反常保护输入端
检 测输 入 端
ο’
Vdm
nυ
调光控 制输 入 端
软 启动 时间控 制输 入 端
Cs
0‘
14
1
Cdm
GND
软启动调光控制输入端
NC
无 连接 端
0UT2
驱 动输 出端
地线
2
绝对最 大额定值
符号
Vcc
峰值驱动输出电流
单位
数值
nυ
参数
电源 电压
Ⅴ
±300
MA
MA
Iclamp
±10
工作温度范围
Topr
Tstg
Pd
C)ja
-25 至刂
-65 至
刂150
存储 温度 范 围
nυ
热阻 (结 点到空气 )
°°
功耗
°°
驱 动输 出箝 位 二 极 管
VO刈 CC,或 VO(-0.3
W/℃
数值
-55-
℃
W
100
绝对最大额定值 (勹 5C<Ta(85C)
符号
揪
℃
单位
cJ
参考电压的温度稳性
参数
符号
条件
最 小值
VCC爿 曾力口
8.7
1.5.
4.9
10.3
V
V
0.27
●乙
Fo〓 50kHz,
mA
mA
n’
IDcc
单位
o乙
输 出端没有
接通
●'
工作 电源电流
0‘
Vcc〓 8.5V
最 大值
V
nυ
启 动 电流
动 态工作 的 电
源 电流 (备 注
Typ
ο°
15〓 0mA
KHz
n冫
低 电压 闭锁部分
VTl (st)
初始域值 电压
UVLO推 拉输 出 HY (st)
5V的 参考 电压 V5
(备 注 1)
电源电流部分
皿V
°°
Δ Vref(Typ)
工作 频率的温度稳定性
Δ fs(Typ)
电特性
如不特殊说明,则 Vc← 12Ⅴ ,Ta四 5℃
8
mA
Cl〓 1nF
1 )
°°
°°
条件
<J
最 小值
0.425
V1d〓 2Ⅴ
Typ
nυ
符号
Vfb1
<J
灯 1反 馈 电
Vfb〓 0V
ο∠
参数
Vfb=2V
o‘
电流放大部分 (备 注 1)
Iea (i)
输 出 陷 落 电流
Iea (o)
输 出源极 电流
uA
uA
最 大值
.0.575
单位
V
压
2反 馈 电
0
Vea(h)
Vfb=OV
输 出低 电压
Vea(l)
Vfb〓 2V
1.15
1
n冫
输出高电压
0.85
<丿
V1d〓 4Ⅴ
灯
压
cJ
Vfb2
0.4
V
V
V
振 荡器部 分
<丿
kHz
∠υ
Vc〓 0Ⅴ
Vc△ 3.0Ⅴ
t丿
软 启动 时电
流
电压 输 入 部分
调 光 电 压 部 △Ⅴdm
分
调 光 启 动 电 Ⅴdm
"i
Ⅴc=3.0V
’`
●・
fref
参考频率
参考 延 迟 时 td
间
软启动频率 fss
1.4
Vc〓 0V
us
o'
丶∠
kHz
12.8
uA
Vdm〓 0Ⅴ
0
2
V
Ⅴdm=0V
3.85
4.15
V
压
出 电压
输 出为 1/2部 分
-56-
^υ
-0.1
Ⅴdm
nυ
初始调 光输
V
降落时 间
Tf
Vcc〓 12V,c1〓 1nF
|
-
nυ
Vcc=5V,IO=100uA
Ns
Ns
ο冫
ULVO工 作 的 Vomin(o)
280
200
^υ
Vcc=12V,C1=1nF
n'
Tr
nυ
上升时间
V
输 出电压
保护部分
反常检测电压
2.4
2
0.85
<J
4.7
0氵
Vld
Vab
Vso
Vnd
<,
关 断检 测 电压
无 灯检 测 电压
tJ
灯检 测 电压
1.15
l
V
Ⅴ
V
Ⅴ
0.7
nυ
τ`
保护复位部分
Vpr
保护复位 电压
备注
1.该 参数在 ⅤcⅡ 11V、 14V、 30Ⅴ 下测得的。
2.以 上参数 ,并 非都是在生产中测得的。
工作说 明
V
:
丨
Wll卩 蜘 db扫诎
v
ο
工作特性
图 1。
KA7543是 先进的电流反馈调光控制集成电路。该反馈调光镇流控制集成 电路提供
了所有实现智能镇 流 系统 宽范围的反馈调光控 制 、软启动和恒定功耗 的必要性能。
KA7543最 适宜需要最 小接 线板 区域的电子镇流系统。
由于采用 了 KA7543,外 部元件计数减少,逆 变器反馈 电流控 制方法是 KA7543具
有的最佳性能方法之一。内部软启动电路不需要外部软启动分立元件。软启动-调 光
电路 的控 制 电压 用 以控 制 大 范 围的 照 明输 出。共 具 有 保 护 电路 、无 灯 保 护 、反 常 保 护 、
单灯检测、ULVO、 再启动附加功能。
-57-
低 电压 锁 定 (ULVO)
PPt
Vcc
图二 负压锁定电路
当 Vcc达 到启动域值 电压 9.5V时 ,才 会有低启动电流产生 (最 大值 27OuA)。
电路启动域值 电压 9.5时 ,就 会 引起整个电路有参考电压 Vref和 偏置电流产 生。
软启动
v
LH凵
亠T告钳
搦
图三 软启动
软启动电路用软启动 电流给 Cs充 电。因此 Cs电 压 线性增加 ,电 流 (Is)就 会 引
起 参考 电压 Vr。 软启动 高频最 小值受 Cc上 电压 (Vbe+2Vd)约 束 ,一 直到 Vcs为 2V,
软启动频率都呈线性降低。此后 工作频率 由反馈参考 电压确定。软启动电路通过电流
给 实时电容 Cs充 电,使 软启动时间限定为 0.8-1秒 ,从 而驱动软启动电路。期间软
启动电路反馈参考电压呈线性工作状态。因而,它 变成灯电流,以 便触
发软启动。
当电压低于 ULVO时 ,Cs放 电。如果单独对 Cs充 电,产 生电压 Vcs,其 与 Cs并
‰ 狠 影 乳 爹 氍
鼐 甜 帮 郢 懈 绿 掣 驵 F鸳 练 缀 獾
V9s成 正比。所以,电 流 is数 值上与 Vcs成 正比增长。当 Vcs为 2V时 ,is达 到最大
值。如调光控制过程启动 ,靠 增加或减少 is的 办法,调 光电流 id产 生参考 电压 Vr。
-58-
振 荡器
o R
o $
o母 o"lator
四 振荡器
磅 振荡器模 块 由两个 比较 电路组成 。充电时间和放 电时间的比是 ⒎ 1。 低 电位 比较
参考 电压是 1V,而 且 高频极限定为 2Ⅴ ,低 频极限为 4Ⅴ 。
这是一个用 2个 比较 电路驱动的振荡器,充 /放 电周期为 ⒎ 1。 该 电路规 定低 比
较电位 1V,反 馈输 出为高电位。而且 ,限 制高电位最小值为 2Ⅴ 以保证 最 大频率和最
大值 4Ⅴ 以保证 最 小频 率 。 目的是通过限制 集成 电路最 大工作频率 防止反 常操作 。另
外 ,最 大工作频率限制的 目的是保证镇 流 系统的 ZVs操 作 。ict是 保证恒定频率的温
度的熔断电流。
调光控制阶段
Cdm
C凵 RRE"丁
AmP凵 FIε R
Ⅶm
DImⅢ ∶
ⅡG
GONtR0L
To orot am卩 l+)
将 电压作为输入端的调光控制 电路有 2Ⅴ 作为全调光。当电压为 OV时 会全亮:Ⅴ cs
为 4时 ,调 光启动开始 ,调 光电路的运作受调光电容 Cdm约 束。也就是说 ,即 使调光
电压快速波动 ,只 要 Cdm充 放电时间尺够长,调 光控制就会起作用 ,道 过调光控制输
入端的开关能触发输 出端 的导通/关 断。该性能的优‘
点是你可 以用单一调光终端 实现
调光控制和开/关 。
输出躯动阶段
采用变压 器驱动镇 流 系统的半桥式电路的高/低 电位切换。输出 1和 输出 2驱 动
该变压器。所以,线 斟电感与输 出 1和 输出 2相 连。输出 1和 输 出 2不 会同时有一个
高电位。频率发生器将振荡器的脉冲信号分成 ⒉部分分别提供给输出 1和 输出 2,输
-59-
出 1和 输 出 2控 制 UVLO信 号维持在低电位。输出阶段有推拉输出电路结构。
FmJn pmtomoo otmto,nm wlo
无灯保护
无灯保护电路采用直接检测模式 、驱动无灯保护从而避免 系统毁坏。
反 常状态保护
3卩
:匡
当
PmtecooB rmot
FQm nol铷 p
^bnomaa pforecton
反常保护与过流保护相似 ,但 其可 以检测出错误连接 的保护电路。
检测电压是 tV。
反常保护电路驱动闭锁电路以使输出端为低电位。因此当 Vct低 于:0.7V时 ,该 闭锁
电路复位 ,Vcc将 重新启动该电路。
灯选择 阶段
V牺
u
0
灯选择器具有双灯和单灯反馈功能。囟为两灯截断了 1/2驱 动 ,1/2驱 动只能对
单灯起作用 ,它 调整 ir电 流配合反馈参考 电压。双灯和单灯的比较 参考 电压是 3V。
应用电路
-60-
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www.fairchildsemi.com
KA7543
Advanced Feedback Dimming Ballast Control IC
Features
Descriptions
•
•
•
•
•
•
•
•
•
•
•
•
•
The KA7543 is an advanced lamp current feedback dimming
control IC. This ballast control IC provides all of the
necessary features to implement wide range dimming
control, soft start and constant power consumption for
intelligent electronic ballast systems. The KA7543 is
optimized for advanced electronic ballast systems requiring
minimum board area. External component counts can be
reduced by adopting the KA7543. Current feedback control
method of the inverter status is one of the most attractive
merits in KA7543. Internal soft start circuitry eliminates the
need for external soft start discrete components. Voltage
controlled soft dimming circuit is built into the IC to control
the lighting output in a wide range. Protection circuitry, no
lamp protection, abnormal protection, one lamp detection,
UVLO, restart on lamp adding , have been added.
Lamp Current Feedback
Soft Start on Feedback
Voltage Dimming (0V~2V) on Feedback
Switch off Control (Vdm=5V)
Soft Dimming Control
No Lamp Protection
One Lamp Detection for Feedback
Abnormal Protection
Low Start-up and Operating Supply Current
UVLO with 1.8V Hysteresis
Totem Pole Output
Trimmed 1.5% Internal Bandgap Reference
14-DIP & 14-SOP
Applications
• Electronic Ballast
• Lighting Control System
• Half Bridge Drive Control System
14-DIP
1
14-SOP
1
Rev. 1.0.3
©2002 Fairchild Semiconductor Corporation
KA7543
Internal Block Diagram
Output stage
OUT1
1
Frequency
divider
14
OUT2
13
NC
Protection reset
+
NC
0.7V
2
Reset Cs
+
-
9.5V
Vcc
ict
-
2V
1.8V
+
7V Vz
Supply
+
3
Limiter
+
UVLO
Q
55pF
8ict
+
R
12
GND
11
Cdm
4V
Q
sw
S
sw
2V Vref
(bandgap)
Internal
bias
2V
Cc
+
Oscillator
1V
7V
bias
4
Dimming starter
5.7V
4V
+
11µA
2V
5.7V
5V regulator
+
V5
5
+
Mirror
-
is
isr
5V
5/2
Switch
Current amp
6
Vr
+
idr
id
+
8
Vld
2V
is-id
ir
Vdm
+
1/2
5kΩ
9
Soft starter
20kΩ
-
2V
-
Mirror
-
Gm
Cs
+
+
Vfb
10
Gm +
Dimmer
20kΩ
Selecter
-
30kΩ
Vab
+
7
3pF
Q
R
Q
2V
Abnormal protection
2
S
-
+
3V
+
5pF
1V
No-lamp pretection
KA7543
Pin Assignments
OUT2
NC
GND
Cdm
Cs
Vdm
Vld
V5
Vfb
Vab
KA7543
OUT1
NC
Vcc
Cc
Pin Definitions
Pin Number
Pin Name
Pin Function Description
1
OUT1
Drive Output 1
2
NC
No Connection
3
Vcc
Supply Voltage Input
4
Cc
Compensation Input
5
V5
5V Voltage Source
6
Vfb
Negative Feedback Input
7
Vab
Abnormal Protection Input
8
Vld
Lamp Detection Input
Dimming Control Input
9
Vdm
10
Cs
11
Cdm
Soft Dimming Control Input
12
GND
Ground
13
NC
No Connection
14
OUT2
Drive Output 2
Soft Start Time Control Input
3
KA7543
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
VCC
30
V
IOH, IOL
±300
mA
Drive Output Clamping Diodes
VO > VCC, or VO < -0.3
Iclamp
±10
mA
Operating Temperature Range
Topr
-25 to 125
°C
Storage Temperature Range
Tstg
-65 to 150
°C
Supply Voltage
Peak Drive Output Current
Power Dissipation
Pd
1
W
Thermal Resistance (Junction-to-Air)
θja
123
°C/W
Absolute Maximum Ratings (−
−25°°C≤
≤Ta≤
≤125°°C)
Parameter
Symbol
Value
Unit
Temperature Stability For Reference Voltage (Vref)
∆Vref(Typ)
20
mV
Temperature Stability For Operating Frequency (fs)
∆fs(Typ)
8
kHz
Electrical Characteristics
Unless otherwise specified, Vcc=12V, Ta=25°C.
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
8.7
9.5
10.3
V
1.5
1.8
2.1
V
V
UNDER VOLTAGE LOCK OUT SECTION
Start Threshold Voltage
VTH(st)
UVLO Hysteresis
HY(st)
5V Reference Voltage(Note1)
VCC increasing
-
V5
I5 = 0mA
4.9
5
5.1
Start Up Supply Current
IST
Vcc=8.5V
-
0.2
0.27
mA
Operating Supply Current
ICC
Output not switching
-
7
9
mA
IDCC
fo = 50kHz, CI=1nF
-
8
12
mA
Output Sink Current
Iea(i)
Vfb = 2V
12
15
18
µA
Output Source Current
Iea(o)
Vfb = 0V
12
15
18
µA
SUPPLY CURRENT SECTION
Dynamic Operating Supply Current (Note1)
CURRENT AMPLIFIER SECTION (NOTE1)
4
KA7543
Electrical Characteristics (Continue)
Unless otherwise specified, Vcc=12V, Ta=25°C.
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
1 Lamp Feedback Voltage
Vfb1
Vld = 2V
0.425
0.5
0.575
V
2 Lamp Feedback Voltage
Vfb2
Vld = 4V
0.85
1
1.15
V
Output Voltage High
Vea(h)
Vfb = 0V
5.5
5.7
5.9
V
Output Voltage Low
Vea(l)
Vfb = 2V
-
-
0.4
V
kHz
OSCILLATOR SECTION(NOTE1)
Reference Frequency
fref
VC = 3.0V
37
45
53
Reference Dead Time
td
VC = 3.0V
1.2
1.4
1.6
µs
Soft Start Frequency
fss
VC = 0V
77
-
-
kHz
Soft Start Time Current
Iss
VC = 0V
9.2
11
12.8
µA
0
-
2
V
VOLTAGE INPUT DIMMING SECTION(NOTE1)
Dimming Voltage Range
∆Vdm
-
Dimming Start Voltage
Vdm
Vdm = 0V
3.85
4
4.15
V
Initial Dimming Output Voltage
Vdm
Vdm = 0V
-0.1
0
0.1
V
OUTPUT 1/2 SECTION
Rising Time (Note2)
tr
Vcc =12V,CI =1nF
-
200
280
ns
Falling Time(Note2)
tf
Vcc =12V,CI =1nF
-
50
90
ns
VCC = 5V, IO =100µA
-
-
0.9
V
Output Voltage With UVLO Activated
Vomin(o)
PROTECTION SECTION
Lamp Detection Voltage
Vld
-
2.5
3
3.5
V
Abnormal Detection Voltage
Vab
-
1.6
2
2.4
V
Switch Off Detection Voltage
Vso
-
4.7
5
5.3
V
No Lamp Detect Voltage
Vnd
-
0.85
1
1.15
V
Vpr
-
-
0.7
-
V
PROTECTION RESET SECTION
Protection Reset Voltage
Notes :
1. This parameter should be tested in Vcc = 11V, 14V, 30V.
2. This parameter, although guaranteed, is not tested in production.
5
KA7543
Operating Description
lamp feedback
lamp change
soft moving on dimming
2Lamp
Vcs
2V
1V
1Lamp
Vfb
0.5V
2V
Vdm
1V
0
t[sec]
Figure 1. Operation Characteristics
The KA7543 is an advanced, lamp current feedback ballast dimming control IC which drives half bridge converter. This
control IC provides all the necessary features to implement wide range dimming control, soft-start and constant power
consumption for the intelligent electronic ballast system. The number of external components can be minimized by adopting
the KA7543. Protection circuitry, no lamp protection, abnormal protection, one lamp detection, UVLO and restart on lamp
adding have been included in the KA7543. Fig. 1 shows the operational characteristic of the KA7543 according to time and
lamp count variation. When the Vcc voltage reaches the start-up threshold voltage(9.5V), the soft start capacitor begins to be
charged. When the Cs pin voltage, Vcs is over 2V, the soft start operation ends. During the soft start operation, the reference
voltage which controls the lamp current is proportional to Vcs. Dimming operation starts when Vcs becomes 4V and the
change rate of dimming is determined by the capacitor connected to the Cdm pin. The more smooth dimming can be
accomplished by the larger capacitor connected to the Cdm pin.
UVLO(Under Voltage Lock Out)
To output
Reset Cs
UVLO
9.5V
Vcc
3
-
1.8V
7V Vz
Supply
+
sw
2V Vref
(bandgap)
2V
Internal
bias
bias
7V
Figure 2. UVLO
Until the Vcc voltage reaches the start-up threshold voltage(9.5V), UVLO circuit lowers the IC operating current below
270µA. When the Vcc voltage reaches the start-up threshold voltage, it generates IC reference voltage(Vref) and supplies bias
current for the whole circuitry. The hysteresis of UVLO circuit is 1.8V.
6
KA7543
Soft Start
Cc
4
Dimming starter
4V
+
11µA
5.7V
10
+
Mirror
is
isr
Cs
Gm +
20kΩ
2V
Soft starter
Figure 3. Soft Start
The soft start circuit charges the soft start capacitor, Cs connected to Cs pin. So the Cs pin voltage increases linearly when
start-up and the current(is) makes the reference voltage(Vr) which is proportional to is current. The is current is maximum
when the Cs pin voltage is 2V. The highest soft start frequency is determined by the Cc pin voltage(Vbe+2Vd). The operating
frequency linearly decreases until the Cs pin voltage reaches 2V. During the soft start operation, the reference voltage which
controls the lamp current is proportional to Vcs. If the Cs pin voltage is higher than 2V, the operating frequency is controlled
by the feedback reference voltage. The UN-UVLO signal discharges capacitor Cs when the Vcc voltage is lower than UV.
Oscillator
From Cc
Limiter
+
+
ict
-
2V
+
To flip flop
Q
R
+
8ict
55pF
4V
Q
S
sw
+
1V
Oscillator
Figure 4. Oscillator
The oscillator block consists of two comparators and the ratio of charging time and discharging time is 7:1. The current source,
ict charges 55pF capacitor until the capacitor voltage meets the upper limit voltage. After that time, 7*ict current discharges
the capacitor until it meet the lower limit voltage, 1V. The upper limit voltage is between 2V and 4V. The operating frequency
is highest when the upper limit voltage is 2V and it is lowest when the upper limit voltage is 4V. The lowest operating
frequency guarantees the zero voltage switching operation of the ballast system.
7
KA7543
Dimming Control Stage
11
Cdm
CURRENT
AMPLIFIER
9
Vdm
DIMMING
CONTROL
5V
Switch
-
is
To output
+
+
Mirror
-
+
idr
id
+
-
To error amp (+)
is-id
20kΩ
2V
Dimmer
Figure 5. Dimming Control Stage
The condition for full dimming is when the Vdm voltage is 2V and the condition for full lighting is when the Vdm voltage is
0V. Dimming operation starts when Vcs becomes 4V and the change rate of dimming is determined by the capacitor
connected to the Cdm pin. The more smooth dimming can be accomplished by the larger capacitor connected to the Cdm pin.
If the Vdm pin voltage is higher than 5V, then the output drive stage remains in off state. Dimming control and output drive on/
off control can be achieved with only one pin.
Output Drive Stage
From protection output from uvlo
From oscillator
Q
Frequency
divider
1
OUT1
14
OUT2
Output
stage
Figure 6. Output Drive Stage
OUT1 and OUT2 are complementary and there is 1.4us dead time for the ZVS operation. The structure of output stage is the
totem-pole output stage. For the high side MOSFET drive, a pulse transformer is necessary.
No Lamp Protection
If the Vld pin voltage is lower than 1V, it means that there is no lamp connected. On no lamp condition, the output drive stage
is in off state.
8
KA7543
Abnormal Protection
To output
30kΩ
Vab
+
7
3pF
S
Q
R
Q
2V
Protection reset
From no lamp
Abnormal protection
+
0.7V
-
Vct
Figure 7. Abnormal Protection Circuit
The abnormal protection is similar to the over current protection, but it is a protection that detects abnormal connection of
lamps. The abnormal protection circuit works when the Vab pin voltage is higher than 2V. The abnormal protection is latched
using a flip-flop and the protection is reset when the ballast system restarts.
Lamp Selector Stage
Cc
Vfb
6
Gm
Vr
5kΩ
+
1/2
ir
is-id
Selecter
-
30kΩ
-
+
3V
+
8
Vld
5pF
1V
No-lamp pretection
Figure 8. Lamp Selector Stage
If the Vld pin voltage is between 1V and 3V, it means that there is one lamp connected and if the Vld pin voltage is over 3V, it
is two lamps condition. The feedback reference voltage of the two lamps condition is twice that of one lamp condition.
9
KA7543
Application Circuit
<85 ~ 265VAC Input, 400VDC, Fluorescent Lamps Ballast(32W*2 / 36W*2)>
T1
D5
D3
C5
D4
R3
D1
R4
R7
D2
R5
D8
NTC
Q1
R1
5
6
OUT
Idet
C6
C2
GND
8
7
C9
C4
Vcc
C3
CS
MULT
R8
4
3
1
C1
2
INV
EA_OUT
FAN7527B
L1
TNR
F1
R6
C7
R2
R9
C8
AC INPUT
R15
C10 R12 T2
C22C23C13
12
7
10
11
14
4
Q2
6
3
5
9
14
R13
C20
L3
Q3
D6
R11
R10
C18
L2
C14
14
8
C19
C15
R14
1
KA7543
C11
C17
D7
C16
R16
C12
R17
R18
R21
C24
ZD1
Vdm(0~2V)
10
C21
R19
KA7543
Components List (32W*2Lamp Application)
Part Number
Value
Note
Manufacturer
R1
1.8MΩ
1/4W
-
R2
25kΩ
1/4W
-
R3, 21
150kΩ
1W
-
R4, 11
22kΩ
1/4W
-
R5
10Ω
1/4W
R6
0.68Ω
1W
-
R7
1.0MΩ
1/4W
-
R8
6kΩ
1/4W
-
R9
103
Variable resistor
-
R10
6.8Ω
1W
-
R12, 13
47Ω
1W
-
R14
180kΩ
1/4W
-
R15, 16
330kΩ
1/4W
-
R17, 18
680kΩ
1/4W
-
R19
8.2kΩ
1/4W
-
C1, 2
150nF, 275Vac
Box-Cap
-
C3, 4
2200pF, 3000V
Y-Cap
-
C5
0.33µF, 630V
Miller-Cap
-
C6, 24
47µF, 35V
Electorlytic
-
C7
1µF
MLCC
-
C8, 11
1nF, 25V
Ceramic
-
C9
47µF, 450V
Electorlytic
-
C10
0.22µF, 25V
Ceramic
-
C12, 21
0.1µF, 25V
Ceramic
-
C13
10nF, 25V
Ceramic
-
C14
1nF, 630V
Miller-Cap
-
C15,16
4700pF, 1000V
Miller-Cap
-
C17, 18, 19, 20
6800pF, 630V
Miller-Cap
-
C22, 23
22µF, 35V
Electorlytic
-
Q1, 2, 3
500V, 4.5A
IRFS830B
Fairchild
D1, 2, 3, 4
1000V, 1A
1N4007
-
D5
600V, 1A
BYV26C
-
D6, 7
600V, 1A
1N4937
-
D8
75V, 150mA
1N4148
-
ZD1
15V, 1W
1N4744
-
L1
45mH
Line Filter
-
L2, 3
3.1mH(120T)
EI2820
-
T1
0.9mH(80T:6T)
EI2820
-
T2
1.2mH(30T:60T)
EE1614
-
F1
250V, 3A
Fuse
-
TNR
470V
471
-
NTC
10Ω
10D09
11
KA7543
Components List(36W*2Lamp Application) (Continued)
12
Part Number
Value
Note
Manufacturer
R1
1.8MΩ
1/4W
-
R2
22kΩ
1/4W
-
R3, 21
150kΩ
1W
-
R4, 11
22kΩ
1/4W
-
R5
10Ω
1/4W
R6
0.68Ω
1W
-
R7
1MΩ
1/4W
-
R8
6kΩ
1/4W
-
R9
103
Variable resistor
-
R10
6.8Ω
1W
-
R12, 13
47Ω
1W
-
R14
180kΩ
1/4W
-
R15, 16
330kΩ
1/4W
-
R17, 18
680kΩ
1/4W
-
R19
8.2kΩ
1/4W
-
C1, 2
150nF, 275Vac
Box-Cap
-
C3, 4
2200pF, 3000V
Y-Cap
-
C5
0.33µF, 630V
Miller-Cap
-
C6, 24
47µF, 35V
Electorlytic
-
C7
1µF
MLCC
-
C8, 11
1nF, 25V
Ceramic
-
C9
47µF, 450V
Electorlytic
-
C10
0.22µF, 25V
Ceramic
-
C12, 21
0.1µF, 25V
Ceramic
-
C13
10nF, 25V
Ceramic
-
C14
1nF, 630V
Miller-Cap
-
C15,16
3300pF, 1000V
Miller-Cap
-
C17, 18, 19, 20
6800pF, 630V
Miller-Cap
-
C22, 23
22µF, 35V
Electorlytic
-
Q1, 2, 3
500V, 4.5A
IRFS830B
Fairchild
D1, 2, 3, 4
1000V, 1A
1N4007
-
D5
600V, 1A
BYV26C
-
D6, 7
600V, 1A
1N4937
-
D8
75V, 150mA
1N4148
-
ZD1
15V, 1W
1N4744
-
L1
45mH
Line Filter
-
L2, 3
3.1mH(120T)
EI2820
-
T1
0.9mH(80T:6T)
EI2820
-
T2
1.2mH(30T:60T)
EE1614
-
F1
250V, 3A
Fuse
-
TNR
470V
471
-
NTC
10Ω
10D09
-
KA7543
Mechanical Dimensions
Package
Dimensions in millimeters
2.08
)
0.082
14-DIP
7.62
0.300
3.25 ±0.20
0.128 ±0.008
5.08
MAX
0.200
1.50 ±0.10
0.059 ±0.004
#8
2.54
0.100
#7
19.40 ±0.20
0.764 ±0.008
#14
19.80
MAX
0.780
#1
0.46 ±0.10
0.018 ±0.004
(
6.40 ±0.20
0.252 ±0.008
0.20
0.008 MIN
3.30 ±0.30
0.130 ±0.012
+0.10
0.25 –0.05
0~15°
+0.004
0.010 –0.002
13
KA7543
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
14-SOP
MIN
#8
0.60 ±0.20
0.024 ±0.008
14
MAX0.10
MAX0.004
1.80
MAX
0.071
5.72
0.225
°
3.95 ±0.20
0.156 ±0.008
0~
8
+0.10
0.20 -0.05
+0.004
0.008 -0.002
6.00 ±0.30
0.236 ±0.012
1.27
0.050
#7
+0.10
0.406 -0.05
+0.004
0.016 -0.002
#14
8.70
MAX
0.343
#1
8.56 ±0.20
0.337 ±0.008
(
0.47
)
0.019
1.55 ±0.10
0.061 ±0.004
0.05
0.002
KA7543
Ordering Information
Product Number
Package
KA7543
14-DIP
KA7543D
14-SOP
Operating Temperature
-25°°C ~ +125°°C
15
KA7543
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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