参数资料
型号: DS3882E+T&R/C
厂商: Maxim Integrated
文件页数: 17/31页
文件大小: 0K
描述: IC AUTO CCFL CTRLR 2CH 28-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1,000
类型: CCFL 控制器
频率: 40 ~ 100 kHz
电流 - 电源: 12mA
电源电压: 4.75 V ~ 5.25 V
工作温度: -40°C ~ 105°C
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 带卷 (TR)
Dual-Channel Automotive CCFL Controller
DEVICE AND
INVERTER SUPPLIES
AT PROPER LEVELS?
YES
RESET FAULT COUNTER
AND FAULT OUTPUT
YES
FAULT STATE
[ACTIVATE FAULT OUTPUT]
SET FAULT_L
AND FAULT_RT
STATUS BITS
NO
FAULT WAIT
[1024 LAMP CYCLES]
NO
FAULT COUNTER = 15?
YES
AUTORETRY ENABLED?
[ARD BIT AT CR1.5]
CLEAR
FAULT_RT
STATUS BIT
INCREMENT FAULT
COUNTER / SET
FAULT_RT STATUS BIT
STRIKE LAMP
[RAMP AND REGULATE TO
OVD THRESHOLD]
IF LAMP REGULATION
THRESHOLD IS MET
LAMP STRIKE TIMEOUT
[SEE REGISTER SSP1]
OVERVOLTAGE
[64 LAMP CYCLES]
SET STO_L
STATUS BIT
SET OV_L
STATUS BIT
LAMP OVERCURRENT
[INSTANTANEOUS IF
ENABLED BY THE
LOCE BIT AT CR1.0]
RUN LAMP
[REGULATE LAMP
CURRENT BOUNDED BY
LAMP VOLTAGE]
LAMP OUT TIMEOUT
[SEE REGISTER SSP1]
SET LOUT_L
STATUS BIT
MOSFET GATE DRIVERS ENABLED
SET LOC_L
STATUS BIT
Figure 8. Fault-Handling Flowchart
____________________________________________________________________
17
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