- 您现在的位置：买卖IC网 > PDF目录1811 > IRU3039CHTR (International Rectifier)IC REG CTRLR BUCK PWM VM 20-MLPQ PDF资料下载
参数资料
| 型号： | IRU3039CHTR |
| 厂商： | International Rectifier |
| 文件页数： | 3/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 20-MLPQ |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 400kHz |
| 占空比： | 88% |
| 电源电压： | 4.75 V ~ 20 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 20-MLPQ |
| 包装： | 剪切带 (CT) |
| 其它名称： | *IRU3039CHTR IRU3039CHTRCT |
IRU3039(PbF)
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX UNITS
Error Amp
Fb Voltage Input Bias Current
Fb Voltage Input Bias Current
I FB1
I FB2
SS=3V
SS=0V
-1
30
+0.08
55
+1
70
μ A
μ A
Transconductance
700
μ mho
VP Voltage Range
V P
Note 1
0.8
1.5
V
Soft-Start Section
Charge Current
Oscillator Section
SS I B
Freq
SS=0V
Rt=Open
14
22
200
35
μ A
KHz
Frequency
Rt=Gnd
400
Ramp Amplitude
V RAMP
Note 1
1.25
V PP
Output Drivers
Lo Drive Rise Time
Hi Drive Rise Time
Lo Drive Fall Time
Hi Drive Fall Time
Tr (LO)
Tr (HI)
Tf (LO)
Tf (HI)
C LOAD =1500pF, V CC =12V
C LOAD =1500pF, V CC =12V
C LOAD =1500pF
C LOAD =1500pF
40
40
40
40
100
100
100
100
ns
ns
ns
ns
Dead Band Time
Max Duty Cycle
Min Duty Cycle
T DB
D MAX
D MIN
HDrv going Hi or Low
Fb=0.6V, Freq=200KHz
Fb=1.0V
100
88
0
ns
%
%
Internal Regulator
Output Voltage
Drive Current
V OUT2
I OUT2
Vcc=12V
5.7
40
6
65
6.3
V
mA
Current Limit
OC Threshold Set Current
OC Comp Off-Set Voltage
I OCSET
V OC(OFFSET)
21
-2
28
1.5
35
5
μ A
mV
Note 1: Guaranteed by design but not tested for production.
PIN DESCRIPTIONS
PIN#
PIN SYMBOL PIN DESCRIPTION
1
4
6
7
8
9
10
12
V REF
Vcc
LDrv
PGnd
Gnd
HDrv
Vc
Rt
Reference Voltage. This pin can source current about 2 μ A.
This pin provides biasing for the internal blocks of the IC as well as power for the low side
FET driver. A minimum of 1 μ F, high frequency capacitor must be connected from this pin
to ground to provide peak drive current capability.
Output driver for the synchronous power MOSFET.
This pin serves as the separate ground for MOSFET's driver and should be connected to
system's ground plane.
This pin serves as analog ground for internal reference and control circuitry. A high fre-
quency capacitor must be connected from Vcc pin to this pin for noise free operation.
Output driver for the high side power MOSFET. This pin should not go negative (below
ground), this may cause problem for the gate drive circuit. It can happen when the inductor
current goes negative (Source/Sink), soft-start at no load and for the fast load transient
from full load to no load. To prevent negative voltage at gate drive, a low forward voltage
drop diode might be connected between this pin and ground.
This pin is connected to a voltage that must be at least 4V higher than the bus voltage of
the switcher (assuming 5V threshold MOSFET) and powers the high side output driver. A
minimum of 1 μ F, high frequency capacitor must be connected from this pin to ground to
provide peak drive current capability.
The switching frequency can be Programmed between 200KHz and 400KHz by connect-
ing a resistor between Rt and Gnd. By floating the pin, the switching frequency will be
200KHz and by grounding the pin, the switching frequency will be 400KHz.
3
www.irf.com
相关PDF资料 |
PDF描述 |
|---|---|
| IRU3046CFTR | IC REG CTRLR BUCK PWM VM 24TSSOP |
| IRU3047CWTR | IC REG CTRLR BUCK PWM VM 20-SOIC |
| IRU3048CFTR | IC REG CTRLR BUCK PWM VM 16TSSOP |
| IRU3055CQTR | IC CTRL SYNC 3-PHASE 36-QSOP |
| IRU3065CLTR | IC REG CTRLR INV PWM SOT23-6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRU3046 | 制造商:IRF 制造商全称:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3046CF | 制造商:IRF 制造商全称:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3046CFTR | 功能描述:IC REG CTRLR BUCK PWM VM 24TSSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:75 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.3 V ~ 13.5 V 降压:是 升压:是 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:0°C ~ 70°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:管件 产品目录页面:1051 (CN2011-ZH PDF) 其它名称:296-2543-5 |
| IRU3046CFTRPBF | 制造商:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047 | 制造商:IRF 制造商全称:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
发布紧急采购，3分钟左右您将得到回复。