UBA2028 データシートの表示（PDF） - NXP Semiconductors.
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UBA2028 Datasheet PDF : 23 Pages
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6. Block diagram
4
GND
10
CT
VDD
16
VREF
7
3V
SUPPLY
reference
voltages
digital
supply (5 V)
analog
VDD(L)
PREHEAT TIMER
reset
LOGIC
BOOTSTRAP
Vpd
UBA2028
DRIVER
LOGIC
STATE LOGIC
• reset state
• start-up state
• preheat state
• ignition state
• burn state
• hold state
• power-down state
LEVEL
SHIFTER
2, 3
FS
1
HV
TR1
HS
DRIVER
TR2
LS
DRIVER
19
SH
20
SL
18
GLI
15
GLO
ANT/ CMD
5
ACM
PCS
17
PCS
VOLTAGE
CONTROLLED
OSCILLATOR
REFERENCE
I
CURRENT
V
13
IREF
12
CF
Fig 1. Block diagram
LAMP
VOLTAGE
SENSOR
Vlamp(fail)
Vlamp(max)
6
LVS
LOGIC
FREQUENCY
CONTROL
AVERAGE
CURRENT
SENSOR
8
CSP
CSN
9
11
CSW
014aaa906
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