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BC3770 датащи(PDF) 3 Page - Freescale Semiconductor, Inc

номер детали BC3770
подробное описание детали  2.0 A Switch-Mode Charger
PDF  45 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

BC3770 датащи(HTML) 3 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
3
Freescale Semiconductor
BC3770
2
Internal Block Diagram
Figure 2. BC3770 Simplified Internal Block Diagram
VBUS
LX
Current
Path
Control
150C
Tj
PGND
BUCK PWM,
CC, CV,
Registers
&I2C
INTERFACE
CONTROL
BLOCK
AICL
OVP
UVLO
+
-
+
-
+
-
THERMAL SHUTDOWN
GND
PWM
DRV
VBUS
VTH
+
-
VTrickle
VTH_TRK
Weak
Battery
PMID
BOOT
+
-
Vprechg
Vpre-chg
Input
Current
Detect
Linear
ITrickle
Iprechg
Q1
(50m
Ω)
Q2
(50m
Ω)
Q3
(70m )
NOBAT
+
-
SDA
SCL
INTB
FS I2C
Interface
VL
CHGENB
VSYS
1.5 MHz
VL
All other enable
conditions=1
Charger
Enabled
I2C bit,
SUSPEND=0
& CHGEN=1
BATSNSN
VL
Internal
Regulator
PMID
+
-
Q4
(30m
Ω)
THR
Reduction
100C
Tj
+
-
THERMAL REGULATION
SHDNB
CHGOUT
BATREG
I2C
disable
VIO
LX
PGND
VSYS
VSYS
CHGOUT
CHGOUT
VBUS
Ω



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