DS3881E+C Maxim Integrated Products, DS3881E+C Datasheet - Page 16
![IC CCFL CONTROL 24TSSOP](/photos/6/56/65600/175-24-tssop_sml.jpg)
DS3881E+C
Manufacturer Part Number
DS3881E+C
Description
IC CCFL CONTROL 24TSSOP
Manufacturer
Maxim Integrated Products
Type
CCFL Controllerr
Datasheet
1.DS3881EC.pdf
(28 pages)
Specifications of DS3881E+C
Frequency
40 ~ 100 kHz
Current - Supply
12mA
Voltage - Supply
4.75 V ~ 5.25 V
Operating Temperature
-40°C ~ 105°C
Package / Case
24-TSSOP
Operating Supply Voltage
5 V
Maximum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
+ 105 C
Supply Current
12 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
DS3881E+
DS3881E+
DS3881E+
Single-Channel Automotive CCFL Controller
Figure 8. Fault-Handling Flowchart
16
____________________________________________________________________
LAMP OVERCURRENT
[INSTANTANEOUS IF
LOCE BIT AT CR1.0]
ENABLED BY THE
STATUS BIT
SET LOC_L
[RAMP AND REGULATE TO
RESET FAULT COUNTER
CURRENT BOUNDED BY
IF LAMP REGULATION
THRESHOLD IS MET
AND FAULT OUTPUT
INVERTER SUPPLIES
AT PROPER LEVELS?
OVD THRESHOLD]
[REGULATE LAMP
LAMP VOLTAGE]
STRIKE LAMP
RUN LAMP
DEVICE AND
STATUS BIT
FAULT_RT
CLEAR
YES
MOSFET GATE DRIVERS ENABLED
[1024 LAMP CYCLES]
FAULT WAIT
LAMP STRIKE TIMEOUT
[SEE REGISTER SSP1]
[SEE REGISTER SSP1]
LAMP OUT TIMEOUT
[64 LAMP CYCLES]
OVERVOLTAGE
NO
FAULT COUNTER = 15?
YES
SET LOUT_L
STATUS BIT
STATUS BIT
SET STO_L
STATUS BIT
SET OV_L
YES
[ACTIVATE FAULT OUTPUT]
AUTORETRY ENABLED?
FAULT_RT STATUS BIT
[ARD BIT AT CR1.5]
INCREMENT FAULT
AND FAULT_RT
COUNTER / SET
FAULT STATE
SET FAULT_L
STATUS BITS
NO