参数资料
型号: MAX8930EWJ+T
厂商: Maxim Integrated
文件页数: 9/52页
文件大小: 0K
描述: IC LED DRVR WT/RGB BCKLGT 49WLP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
恒定电流:
拓扑: PWM,切换式电容器(充电泵)
输出数: 11
内部驱动器:
类型 - 主要: 背光
类型 - 次要: OLED,RGB,白色 LED
频率: 100kHz ~ 400kHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 5V
安装类型: 表面贴装
封装/外壳: 49-WLP
供应商设备封装: 49-WLP(3.15x3.15)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
MAX8930
WLED Charge Pump, RGB, OLED Boost,
LDOs with ALC and CAI
CHG PIN CHARACTERISTICS
PARAMETER
Low-Level Voltage
I CHG = 5mA
CONDITIONS
MIN
TYP
0.05
MAX
0.2
UNITS
V
Leakage Current
V CHG = 3.7V
T A = +25 N C
T A = +85 N C
0.1
1
1
F A
Note
Note
Note
Note
1:
2:
3:
4:
Limits are 100% production tested at T A = +25 N C. Limits over the operating temperature range are guaranteed by design.
0.1mA LED load current is not included.
Guaranteed by design. Not production tested.
LED current matching is defined as: (I MAX - I MAX )/25.6mA. Matching is for LEDs within the RGB group (RLED, GLED,
BLED) or the white LED group (WLED1–WLED8).
Note 5: Dropout voltage is defined as the LED_ to AGND voltage at which current into LED_ drops 10% from the value at V LED_ =
0.5V at 1x mode.
Note 6: V KEY = 0V when pulling low, leakage current from PV3. V KEY = 3.7V when pulling high, leakage current is to GND.
Typical Operating Characteristics
(V PV_ = V EN = 3.7V, circuit of Figure 1, T A = +25°C, unless otherwise noted.)
WLED EFFICIENCY vs. INPUT VOLTAGE,
6 MATCHED WLEDS
WLED EFFICIENCY vs. INPUT VOLTAGE,
6 MISMATCHED WLEDS
EFFICIENCY vs. Li+ BATTERY VOLTAGE
DRIVING 6 MATCHED LEDs
100
90
80
70
I LED_ = 1.6mA, 6.4mA, 16mA, 20.8mA
100
90
80
70
I LED_ = 1.6mA, 6.4mA, 16mA, 20.8mA
100
90
80
70
16mA/LED
20.8mA/LED
60
60
60
1.6mA/LED
6.4mA/LED
50
40
50
40
50
40
2.5
3.0
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
4.2 3.9
3.8
3.7
3.6
3.5 3.4 3.0
100
INPUT VOLTAGE (V)
EFFICIENCY vs. Li+ BATTERY VOLTAGE
DRIVING 6 MISMATCHED LEDs
0.0265
INPUT VOLTAGE (V)
WLED CURRENT MATCHING
vs. INPUT VOLTAGE
Li+ BATTERY VOLTAGE (V, TIME-WEIGHTED)
WLED—CHARGE PUMP INACTIVE
MAX8930 toc06
90
80
6.4mA/LED
1.6mA/LED
0.0264
0.0263
0.0262
0.0261
I LED_ = 25.6mA
V C1P
V C1N
V PV_ = 3.8V, ILED_ = 25.6mA
0V
0V
70
0.0260
0.0259
60
50
20.8mA/LED
16mA/LED
0.0258
0.0257
0.0256
0.0255
V C2P
V C2N
V NEG
0V
0V
0V
40
0.0254
4.2 3.9
3.8
3.7
3.6
3.5 3.4 3.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
100ns/div
Li+ BATTERY VOLTAGE (V, TIME-WEIGHTED)
Maxim Integrated
INPUT VOLTAGE (V)
9
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