uba20260 NXP Semiconductors, uba20260 Datasheet - Page 3

• Manufacturer Part Number: uba20260
• Description: 600 V Driver Ic For Step Dimmable Cfls
• Manufacturer: NXP Semiconductors

Fig 1.
SGND 13
CP
CB 12
11
Block diagram
BOOST TIMER
REFERENCE
1 μA
CURRENT
PREHEAT/
1.27 V
SUPPLY
V
4
DD
+
5 V ANALOG
5 V DIGITAL MEMORY
5 V DIGITAL
-
25 μA
5
RREF
6 μA
+
-
REFERENCE
VOLTAGES
CONTROLLED OSCILLATOR
60 μA
+
+
-
-
V
I
V
DD(stop)
RESET
5 V
VOLTAGE
6
CF
+
-
DIMMER
LOGIC
STEP
TEMPERATURE
160° 120° 80°
FREQUENCY
SENSOR
CONTROL
LOGIC
POWER-DOWN STATE
START-UP STATE
PREHEAT STATE
IGNITION STATE
RESET STATE
BOOST STATE
STATE LOGIC
HOLD STATE
BURN STATE
DIVIDE BY 2
LOGIC
8
CI
CURRENT
OTA
SENSOR
LAMP
+
-
AMPLIFIER
DRIVER
LOGIC
BOOST
BOOTSTRAP
4
9
CSI
DSR
V clamp(CSI)
SHIFTER
Q
2
LEVEL
A
Q
B
IGNITION CURRENT DETECTOR
CAPACITIVE MODE DETECTOR
V MDL
V DIM_3
V DIM_2
V DIM_1
PREHEAT CURRENT SENSOR
OVERCURRENT DETECTOR
INDUCTOR SATURATION/
25 μA
STEP DIM LEVEL SELECT
7
MDL
HS driver
LS driver
+
+
-
-
+
+
-
-
V th(capm)SLS
V th(det)ign(CSI)
V ph(SLS)
V th(ocp)SLS
14
16
15
10
001aam761
2
3
1
FS
GHS
HBO
GLS
SLS
PGND
n.c.