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PDF ( 数据手册 , 数据表 ) KA7522

零件编号 KA7522
描述 DIMMING BALLAST CONTROL IC
制造商 Fairchild Semiconductor
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KA7522 数据手册, 描述, 功能
KA7522/D
DIMMING BALLAST CONTROL IC
BALLAST CONTROL IC
The KA7522 is a electronic ballast controller for fluorescent inverter syst-
ems. It contains whole function in KA7521, current feed back and prehea-
ting time controlled by temperature sensing.
FEATURES
3-step soft start
Input voltage limit & Brown out
Non Lamp detect, & Lamp reset
ZVS Guard control
Current feedback control
Preheating time controlled by temperature sensing
22 DIP
20 SOP
BLOCK DIAGRAM
Tsns
17
Rhys
18
ORDERING INFORMATION
Device
KA7522
KA7522D
Package
22 SDIP
20 SOP
Operating Temperature
Î-25 ~ + 100
Î-25 ~ + 100
Vds
Vgs
16 15
VCC
20
BROW N
OUT
OVER
TEMPERATUR E
IN P U T
V LIM IT
ZVS GUARD
CONTRO L
10
3 STEP
8 LOW - SOFT
TEMPER
START
7
SAW TOO TH
GENERA-
TOR
+
-
U V L O & 5 V V re f
1 4 V re f
2
D -F/F
2
OUTPUT
STAGE
2 OUT2
19 OUT1
D C -F E ED
12 FORW AR D
DELAY TIMER
D IM M IN G
BOX
CURREN T
FEEDBACK
M U LT IP LIE R
LAMP
DETECT
NON
LAMP
OVER-
CURREN T
4 Vsns
LAMP RESET
9
ñ
5
V lm 1
6
V lm 2
11
Vmo
13
V fb
©1999 Fairchild Semiconductor Corporation
Rev. B







KA7522 pdf, 数据表
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
UHC™
VCX™
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 FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
effectiveness.
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Advance Information
Preliminary
Product Status
Formative or
In Design
First Production
No Identification Needed
Full Production
Definition
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.














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