ETC AIC34063A

眦
Φ
AlC弓 406了 A
彳D〃 NCE
(MC34063A)
rNFORM/rrON
DC`DC CONVERTER C0NTR0L CIRCulT
FEAT-
■
■I DEsCⅢ H=oⅡ
。3V to30V Input Voltage0ρ erauon
the MC⒊“浴3A by Analog lnteg旧 tions Corporaton,
。Interna丨 1,6A Peak Current sw"ch
an irnproved second source over the industriaI
〓
卩
。 lnternaI±
18%Reference
〓
,
。 Frequency operauon from1ooHz to100κ
。 Current Lirnitng
nd"h℃ Control cirCu"
a rⅨ 冫
standard MCs0Os3A,‘
containing the Ⅱmary 幻nctons require¢
. Low QuIesCent Cu″ ent at16mA
Hz
.
for
DC`DC Conve"ers,The device consists of an interˉ
naI tefnperature comρ ensated reforence, CoΠ 卜
parator, contrOIled duty cycle osCⅢ ator wⅡ h an
APPLIC^T=oⅡ s
active curent lifnit CircuⅡ , d"ver and high current
。 saverfor Ce"uIar phones
εis spec雨 CaIˇ designed
output switCh This deˇ 屺
。 DC-DC Converter ModvIe
to be incO「 porated in stepˉ down,stepˉ up and vol←
■
ageˉinverting appIk∝ ,tions w∶ th a minirη um
number
of extemaI∞ mponents The± 18%intemal refe卜
ence and low quiescent current of 16m丿
鼽
` are
among the irnprovefvlents of the device oˇ er the
compet"ion
■l-C^L
APPL1C^tⅡ o△ C1RCmT
saˇ ●rC∶ rc山 itfor C●
"ular Phon●
■
oRDER=Ⅱ G
ⅡⅡFo-T10Ⅱ
MC34063A XX
oRDER NUMBER
MC34063ACN
(PLAsTIC DIP)
C∶
2-88
o:C`+70C
MC34063ACs
(PLAsTlC so)
PIN CONFIGVRATION
ToP VIEW
sC
oRl
sE
IPκ
TC
VCC
GNo
FB
翻
Φ
■I^Bs0LUTD
MC34063A
Gs
MAHMUM RAT1Ⅱ
suppIy VOItage .¨ ¨¨¨¨¨………………………………………
…………・^03v~30V
ComparatorInput Vo"age Range
〃
30V
sW"Ch CoIIeCtor Vo"age
ˉ
ˉ
锔
sW"ch Emitter VoⅡ age。 。
¨¨¨¨¨……………・
…
sWitCh CdlectortO Emker VoItage
30V
¨¨¨¨¨
.
30V
DHver Co"ector VoⅡ age ..¨ ¨¨
.
sW"Ch Current.¨ ¨¨¨¨¨¨………………………………………・
16A
POWerE冫 issipation and Thermal Characteris刂 cs
D`P Package
10W
Ta〓 25℃
ThermaI Resistance 。
¨¨¨¨¨¨¨……¨……¨¨¨¨・100℃ ∧″
s0Package
・
Ta=25℃ .¨ ¨¨¨¨¨¨¨…¨……¨…・
・
…………………… 625mW
ThermaI Resistance 。
.¨ ¨
¨¨¨.… …
0perating Junction Temperature .¨ ¨¨¨¨¨…………………………
operaung Ambient Temperature Range
storage Temperature Range
¨
。
。
¨¨¨¨¨¨¨¨¨¨¨…・
160飞)/W
125℃
o~70℃
ˉ65℃ -150℃
2-89
翻
Φ
MC34063A
ELECTRICAL CHARACT0RIsTICs lVCC=5V,T严
■
PARA"ETER
TEsT COND∶ TIONs
ns℃ ,u"hss othem⒗ e specⅢ ed。 )
sΥ mBOL
mIN。
TΥ P。
ⅢAX。
uNlT
J卩
龟
⒈
osC'`'afor
Charging Current
50V兰 VCC垦 30V
Discharge Current
50V兰 VCC鉴 3oV
Vo"age swing
PIN3
Dlscharge to Charge Current
VlPKlsENsEl〓 vCC
IDlscHG
10
25
40
uA
100
150
200
uA
V。 sc
o6
lDlscHG` lcHG
60
V
Ratio
Current Lim"sense Vo"age
IcHG〓
l。
250
300
350
mV
VcElsATl
10
13
V
VcE lsAT)
o4
o7
V
、
IscHG
(sENsE)
`lPκ
o″ rpJf s叨 fch
saturatlon Vo"age,Dadington
COnnection
saturauon Vo"age
I脚
疒 10A∷
Vc(DRlvERl=vC(sⅢ TcH)
IsⅥ
厂10A∶ IclDRlvER)=50mA
(F° rced'≡
=20)
DC Current Gain
lsw=10A∶ VcE〓 50V
CoIlector0fF-state Current
VcE〓
35
30V
Ic(。
120
10
FF)
nA
Co″ ρararor
VF:
ThreshOId Voltage
o℃ 鉴Ta兰 70℃
ThreshOId Voltage Line Regu-
30V鉴 VCC兰 30V
1227
125
121
REGu`E
1273
v
Vo"age
v
ThΓ eshold
129
o1
o3
mVⅣ
o4
1
uA
16
3
mA
lauon
OV
Input Bias Current
VIN〓
supply current
V丨 PKlsENsE)〓
vcc
VP|N5>VF:
50V鉴 VCC兰 3oV
CT〓 0001uF,PIN2〓
GND
Remaining pins open
2-90
Φ
豹
■
MC34063A
TYP1CAL PERFORMAⅡ CE CH^RACTERIsTICs
0utput switCh0N-0FF Time vs0scillator Timing
y Current vs suρ ρ丨
standby supρ 丨
Y Vokage
・
^∞ι
〃
Capacitor
Φε
馋
^<Eˇ
F吐
ˉ
ˇ
L0ˉ
ce‘
z0£
,0>乙
一
°〓Ξ ∞
,∞
~0°
δ夕
α
~●
匚
圭 °ˇ
L°
1
Ct、
10
OscⅢ ator TInning Capacitor(nF)
VCC'suρ ply
Vo!tage〈 V)
lPK Threshold Voltage Vs Temperature
VF:`Threshold Vo"age vs Temperature
^>ε
^>一
一ΦΦ●一石
Φ 0Φ ~δ
e‘
卜
△ 击
4IIII舛
oe‘
石 ‘∞
石‘
>υ
>°
...>
L>
IIll2ι
ο
30
40
50
Temperature(C)
20
60
⒈
saturation Voltage vs Emmiter current
|
⒈
一>一 ΦΦ①一石
⒈
°
一>一 Φ Φ Φ ˇ一
PIN1`7`8=VCC
PIN3`5=GND
4o
5o
6o
)
Commonˉ Em"ter Con】 guration Output sw“ ch
Emm"erˉ Fol丨 ower ConⅡ gurauon output switch
VCC=5V
30
Temρ erature(℃
satvration Vo"age vs Co"ector Current
VCC=50V
PlN氵 =VCC
PlNs2`3`5=GND
|
⒍
>c£
>c°
Dar"ngton ConneCtion
e3~●
⒍
ˇ
△ ¤ 一ハ ~阝 ∞
⒍
∞亠
丶
.<g凵
F<9凹
>
°
⒍
°
>
'
Foroed Beta = 20
ο
o5
lε
1
、Emitter Current〈 A)
o5
1
lc'Co"ector Cu″ ent(e)
2-91
翻
Φ
MC34063A
BLOCK DIAGRAM
■
HⅡ DEsCR=PT10Ⅱ s
.卩
■
,
sC
sE
-Feedback cOmparatorinverting input
PlN6∶
FB
VCC
PlN7∶
lPK
-Highside Current sense input,
ˉ16A sW"ch Co"ector
PIN5∶
ˉDadington sw"ch emi饿 er
PIN⒊ TC -0sciIlator uming capacitor
PIN1∶
PIN2∶
PIN⒋
VCCˉ
GND-POwer GND
PlN8∶
■
APPLIC^TIoⅡ
1Ⅱ
N~t°
t。
VovT +VF
=300mV
ˉ
Rs
o33/Iclsw叮 CH)
(
ltON M枘
lc(swITcH)(t0N +toFF)
8VR PPLE(p Pf
~FMˉ
2I。 uT(MAx)
ˉN
lc(swITcH)
N
4X10⒖ t。 N
VN-VsAT
Vs^t
VlN(MlN)ˉ
~FMˉ
Ct
VOLTAGEˉ lNVERTING
v1+许
Ⅳ°
Vo∪ T +VF-VN(MlN)
ˉ Vovt
~FMˉ
+t。 FF)MAx
2-92
o
9
-Drive co"ector
sTEPˉ uP
ˉN
FF
VlN(MlN) ˉ VsAT
L(MIN)
DRl
VlPκ
FORMATIoⅡ
DEslGN FORⅢ ULA TABLE
CALCULATlON
sTEPˉ DOWN
Co
-POwer supply input
4X105t。 N
TlMAxl(芈
‰
4x10~st。
)
‰ Ⅷ焖 (芈
o33`Ic(swlTC")
(噼
ltONlM呐
lovt toN
V网 PPLε e pl
N
)
o33/lclswlTCH)
(噼
ltON M呐
lo∪
Tt。 N
V曰 PPL曰 P Pl
翻
Φ
VsAT
VF
MC34063A
〓saturation voltage ofthe output switch
=FOn″ ard
FMIN
ˉMinimum desired output switching仃 equency
voⅡ age drop ofthe ringback rectifler
atthe selected va丨 ues for VlN and I。 uT
ˉDesired
chosen∶
peakˉ toˉ peak output ripple vo"age ln
ρractice,the caIculated vaIue wⅡ 丨need to be
ⅥN
ˉNomina"nput vo"age
series resistance and board Iayout The ripple
V。 vT
ˉDesired outρ ut vo"age,
VRIPpLE(P~P)
The fOIIOwing power suppIy characte"stics must be
〃
increased due to the capac"or equivalent
`
・
|vo州
l。
■I
vT
voltage should be kept to a low value since it
〓
1⒛ (1+RB/RA)
Wil丨
direCt丨
y efFect the Iine and load regulation
ˉDesired output current
ApPⅡ CATIoⅡ EXAMPLEs
D1 ⊥
IN5821∶
DRl
sC
lPK
sE
VCC
Tc
c。
uF
:[)47°
Line Regulation
卫w=10v~⒛ [email protected] 〓500mA
40mV
LOad ReguIation
V焖 〓 15V,@丨 。〓10mA~5oomA
5mV
short Circu"Current
VlN〓
15V,@RL〓 01Ω
13A
Fig.1 steρ ˉ
DOwn Conˇ erter
}
`
ˉ
CT 1i^ c°
△
貊
.Fig。
亡
2 stepˉ Down Conve"er wkh External PNP saturation swkch
2-93
'〔
尸
's・
¨ι
⒈
ˇ
MC34063A
APPLICATIoⅡ EXAMPLEs(CONTINUED)
〓
卩
,
DRl
sC
PK
丨
sE
VCC
TC
FB
GND
Line Regulation
ⅥN〓
[email protected] 〓200mA
LOad ReguIation
VlN〓
12V,@l。 〓80mA~200mA
Fig,3 step~up Converter
T 【r」
IPK
sE
∞
丿 T
洋〓—————△卜一亻 Q1
RB
F∶ g。
2工 94
4 stepˉ Up Conˇ e"er with EXternal NPN swkch
100mV
5mV
・
■I
^
癫Φ
9囡
⑩
Φ
■ APPⅡ CAT=oⅡ
MC34063A
HAMPLEslCONTlNuEDl
/〓
DRI
sE
IPκ
MC340saA
〓丶
sC
∶
T「
TC
VCC
GND
FB
■
V"[email protected] 〓100mA
ⅥN〓 5V,@)I。 〓10mA~100mA
Line Regulation
LOad ReguIation
F∶ g。
100mV
Co"ve"eΓ
scsETcND
DRI
5 1mˇ e"∶ ng
20mV
lPκ
VCC
G
FB
2-95