参数资料
| 型号： | DS3881E+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/28页 |
| 文件大小： | 0K |
| 描述： | IC CCFL CONTROL 24TSSOP |
| 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： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 带卷 (TR) |
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Single-Channel Automotive CCFL Controller
Pin Description
PIN
1, 9
2
3
4
5
6
7
8
10
11
12
13, 21
14
15
16
17
18
19
20
NAME
A0, A1
SDA
SCL
LSYNC
LOSC
BRIGHT
PSYNC
POSC
GND_S
SVML
SVMH
V CC
LCM1
OVD1
N.C.
STEP
GND
LCO
PDN
FUNCTION
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
when the DS3881 is configured as a lamp frequency receiver. If the DS3881 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 DS3881s.
Lamp Oscillator Resistor Adjust. A resistor to ground on this lead 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 DS3881 is
configured as a DPWM receiver. If the DS3881 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 DS3881s.
DPWM Oscillator Resistor Adjust. A resistor to ground on this lead sets the frequency of the DPWM
oscillator. This lead can optionally accept a 22.5Hz to 440Hz clock that will become the source timing of
the internal DPWM signal.
I 2 C Interface Ground Connection. GND_S must be at the same potential as GND.
Low-Supply Voltage Monitor Input. Used to monitor the inverter voltage for undervoltage conditions.
High-Supply Voltage Monitor Input. Used to monitor the inverter voltage for overvoltage conditions.
Power Supply Connections. Both pins must be connected.
Lamp Current Monitor Input. Lamp current is monitored by a resistor placed in series with the low voltage
side of the lamp.
Overvoltage Detection. Lamp voltage is monitored by a capacitor divider placed on the high voltage side
of the transformer.
No Connection. Do not connect any signal to this pin.
Lamp Frequency Step Input. This active-high digital input moves the lamp oscillator frequency up or down
by either 1%, 2%, 3%, or 4% as configured in the EMIC register. This pin is logically ORed with the STEPE
bit in the EMIC register.
Ground Connection
Lamp Current Overdrive Enable Input. A high digital level at this input enables the lamp current overdrive
circuit. The amount of overdrive current is configured by the LCOC register. When this input is low, the
lamp current is set to its nominal level. This pin is logically ORed with the LCOE bit in the LCOC register.
Lamp On/Off Control Input. A low digital level at this input turns the lamp on. A high digital level clears the
fault logic, turns the lamp off, and places the device into the power-down mode. This pin is logically ORed
with the PDNE bit in the CR2 register.
22, 23
GA1, GB1 MOSFET A and B Gate Drive. Connect directly to logic-level mode n-channel MOSFET.
24
FAULT
Active-Low Fault Output. This open-drain pin requires external pullup resistor to realize high-logic levels.
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相关PDF资料 |
PDF描述 |
|---|---|
| DS3882E+T&R | IC CCFL CNTRLR DUAL 28TSSOP |
| DS3984T+ | IC CCFL CNTRLR 4CH 32-TQFP |
| DS3988T+ | IC CCFL CNTRLR 8CH 48TQFP |
| DS3991Z+T&R/PPV | IC CTRLR CCFL PUSH-PULL 16-SOIC |
| DS3992Z-09N+T&R | IC CCFL CNTRLR 2CH 16-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3882 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller |
| DS3882_10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller |
| DS3882E | 制造商:Maxim Integrated Products 功能描述:CAR DUAL CCFL CONTROL TSSOP - 28 - Rail/Tube |
| DS3882E/T&R | 制造商:Maxim Integrated Products 功能描述:CAR DUAL CCFL CTRL TSSOP-28 T&R - Tape and Reel |
| DS3882E+ | 功能描述:IC CCFL CNTRLR DUAL 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
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