MC33998 데이터 시트보기 (PDF) - Freescale Semiconductor
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MC33998 Datasheet PDF : 20 Pages
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INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VPWR
KA_ VPW R
5.0 V VREF1
5.0 V VREF2
3 39 98
Drive
I -lim
Sof t
S tar t
E nb
Osc
Lo gic
&
La tch
Ramp
V bg
Ret ry
VRE F1
Re g.
Ba n dga p
Volta ge
Vb g
Snsenb Reference
Ret ry
VRE F2
Re g.
S nse nb
Sn sen b
En ab le
Control Enb
En b
2 .6V
L inea r
Reg ulat or
Driver
P OR
En b
V bg
2 .6V
Sta nd by
Reg .
Cha rg e
P um p
PwrO K
VkamOK
V SW
5.0 V
FBK B
V SUM
V DDH
DRV L
FBL
2.6 V
V KAM
2.6 V
PWRO K
VKA MO K
CRES
SNSE N
EN
PG ND
Figure 2. 33998 Simplified Internal Block Diagram
33998
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
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