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参数资料
| 型号： | L6911A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | SO-20 |
| 文件页数： | 4/7页 |
| 文件大小： | 50K |
| 代理商： | L6911A |
ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VCC SUPPLY CURRENT
ICC
Supply current
UGATE and LGATE open
-
5
-
mA
POWER-ON
Rising VCC Threshold
VOCSET = 4.5V
-
4.6
V
Falling VCC Threshold
VOCSET = 4.5V
3.6
-
V
Rising VOCSET Threshold
-
1.26
-
V
OSCILLATOR
Free Running Frequency
RT = open
185
200
215
kHz
Total Variation
RT to GND > 6k
,
RT to VCC = 12V > 200k
-15
-
15
%
Vosc
Ramp Amplitude
RT = open
-
1.9
-
V
REFERENCE and DAC
DACOUT voltage Accuracy
VID0, VID1, VID2, VID3 see
Table1
-1
-
1
%
ERROR AMPLIFIER
DC Gain
-
88
-
dB
GBW
Gain-Bandwidth Product
-
15
-
MHz
SR
Slew Rate
COMP = 10pF
-
10
-
V/
s
GATE DRIVERS
IUGATE
Upper Gate Source
VBOOT - Vphase = 12V,
VUGATE =6V
0.6
1
-
A
RUGATE
Upper Gate Sink
ILGATE = 0.3A
-
1.5
3
ILGATE
Lower Gate Source
VCC = 12V, VLGATE = 6V
1.2
2
-
A
RLGATE
Lower Gate Sink
ILGATE = 0.3A
-
1
2
PROTECTION
Overvoltage Trip
(VSEN/DACOUT)
-
115
120
%
IOCSET
OCSET Current Source
VOCSET = 4.5VDC
170
200
230
A
IOVP
OVP Sourcing Current
VSEN = 5.5V, VOVP =0V
60
mA
ISS
Soft Start Current
10
A
N
°
Name
Description
20
RT
Oscillator Switching frequency pin. Connecting an external resistor from this pin to ground the
switching frequency is increased according to the equation:
fS
= 200kHz +
5
106
RT
(K)
Connecting the resistor from this pin and the Vcc the Switching frequency is reduced
according to the equation:
fS
= 200kHz
4
107
RT
(K)
If the pin is not connected the switching frequency is 200kHz.
PIN FUNCTION (continued)
L6911A
4/7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6911B | 制造商:STMicroelectronics 功能描述: |
| L6911C | 功能描述:DC/DC 开关控制器 5B PROGRAMMABLE STEP DOWN CONTROLLER RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6911CTR | 功能描述:DC/DC 开关控制器 5B PROGRAMMABLE STEP DOWN CONTROLLER RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6911D | 功能描述:DC/DC 开关控制器 5-Bit Prog Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6911DTR | 功能描述:DC/DC 开关控制器 5-Bit Prog Step-Down RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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