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参数资料
| 型号： | DS3882E+T&R/C |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/31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) |
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Dual-Channel Automotive CCFL Controller
Pin Description
NAME
PINS BY
CHANNEL (n)
CH 1
CH 2
FUNCTION
GAn
GBn
LCMn
OVDn
NAME
FAULT
A0
SDA
SCL
15
16
17
18
PIN
1
2
3
4
25
26
27
28
MOSFET A Gate Drive. Connect directly to logic-level mode n-channel MOSFET. Leave open if channel
is unused.
MOSFET B Gate Drive. Connect directly to logic-level mode n-channel MOSFET. Leave open if channel
is unused.
Lamp Current Monitor Input. Lamp current is monitored by a resistor placed in series with the low-voltage
side of the lamp. Leave open if channel is unused.
Overvoltage Detection. Lamp voltage is monitored by a capacitor divider placed on the high-voltage side
of the transformer. Leave open if channel is unused.
FUNCTION
Active-Low Fault Output. This open-drain pin requires external pullup resistor to realize high logic levels.
Address Select Input. Determines I 2 C slave address.
Serial-Data Input/Output. I 2 C bidirectional data pin, which requires a pullup resistor to realize high logic
levels.
Serial Clock Input. I 2 C clock input.
Lamp Frequency Input/Output. This pin is the input for an externally sourced lamp frequency
LSYNC
LOSC
BRIGHT
PSYNC
5
6
7
8
when the DS3882 is configured as a lamp frequency receiver. If the DS3882 is configured as a lamp
frequency source (i.e., the lamp frequency is generated internally), the frequency is output on this pin for
use by other lamp frequency receiver DS3882s.
Lamp Oscillator Resistor Adjust. A resistor to ground on this pin sets the frequency of the internal lamp
oscillator.
Analog Brightness Control Input. Used to control the DPWM dimming feature. Ground if unused.
DPWM Input/Output. This pin is the input for an externally generated DPWM signal when the
DS3882 is configured as a DPWM receiver. If the DS3882 is configured as a DPWM source (i.e., the
DPWM signal is generated internally), the DPWM signal is output on this pin for use by other DPWM
receiver DS3882s.
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