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PR4101 の電気的特性と機能

PR4101のメーカーはPREMAです、この部品の機能は「High Power LED Buck Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 PR4101
部品説明 High Power LED Buck Driver
メーカ PREMA
ロゴ PREMA ロゴ 




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PR4101 Datasheet, PR4101 PDF,ピン配置, 機能
LED DRIVER PR4101
High Power LED Buck Driver PR4101
The PR4101 is a LED buck driver for driving one or several high power LEDs in series.
The supply voltage can be up to 40V, with an output current of more than 1A using an
external N-channel MOSFET switching transistor. The PR4101A with additional PWM and
power down input is delivered SOP14 packaged, while the PR4101B is offered SO8
packaged.
Features
• Adjustable output current of several amps
• Supply voltage up to 40V
• Dimming with phase-cut dimmer
• Brightness control with PWM (PR4101A only)
• Output current temperature compensation
• Delayed start possible (PR4101A only)
• Over temperature protection
• Frequency spreading for improved EMI
• Low standby current of < 35 µA
• Under voltage lockout
Typical Application
Applications
• Halogen lamp or filament
bulb replacement by LEDs
• General illumination
• Warning lights
• Automotive lighting
• Indicator signs
• LCD backlighting
Vcc
7V ... 40V
CIN
Vcc
VDI
Gnd
SUB
5VLo
NDRV
D1 CLED
L
One or
more LEDs
5VHi
Vsense
PR4101
RVsense
Rsense
Pin Configurations
Test
PwrDwn
Delay
1
2
3
PWM
GND
4
5
SUB
5VHi
6
7
14 RTK
13 Temp
12 Vsense
11 NDRV
10 VDI
9 Vcc
8 5VLo
PR4101A: Package SOP14
Topside marking: version code "PR4101"
RTK
GND
5VHi
5VLo
1
2
3
4
8 Vsense
7 NDRV
6 VDI
5 Vcc
PR4101B: Package SOP8
Topside marking: version code "PR4101B"
© PREMA Semiconductor GmbH 2007-2008
Page 1/20
Rev 4808

1 Page





PR4101 pdf, ピン配列
LED DRIVER PR4101
Absolute Maximum Ratings
Parameter
VCC, VDI (no damage)
All other pins
Operating Chip Temperature Range (over temperature protection)
Storage Temperature Range
Electrostatic Discharge (ESD) Protection
Min Typ Max
-0.3 50
14
-20 125
-55 150
2
Units
V
V
°C
°C
kV
Electrical Characteristics
Vcc=12VDC, Ta = 25°C, L=470 µH (unless otherwise noted)
Symbol
Vcc
VDI
IsuppOFF
IsuppON
VNDRV
IOUTsource
IOUTsink
fOP
fSP
VSENSE
Parameter
Supply voltage
Undervoltage detection
Start-up
Shut-off
Supply current, PwrDwn=0V
Supply current, PwrDwn=open
Gate output voltage HIGH
Output source current at NDRV
Output sink current at NDRV
Operating center frequency
Frequency spreading
Threshold voltage at RSENSE
tDELAY
VRefPWM
fPWM
tPWM
VTEMP
TOT
Delay start period
(PR4101A only)
Threshold voltage PWM input
(PR4101A only)
Frequency of external PWM
signal (PR4101A only)
Min. pulse duration of PWM
(PR4101A only)
Output voltage of internal
temperature sensor at pin
TEMP (PR4101A only)
Overtemperature protection
junction temperature
Shut-off
Resume
Conditions
Pin RTK not
connected
Tchip = 100°C
Tchip = 0°C
Min
7
6.0
3.0
2
Typ
7.0
30
3.0
3.8
125
5
200
250
1000
1.60
2.15
125
90
Max Units
40 V
9.0 V
V
µA
mA
V
50 mA
20 mA
kHz
%
mV
µs
mV
500 Hz
µs
V
V
°C
°C
© PREMA Semiconductor GmbH 2007-2008
Page 3/20
Rev 4808


3Pages


PR4101 電子部品, 半導体
LED DRIVER PR4101
100%
95%
90%
85%
80%
75%
70%
65%
60%
10
100%
95%
90%
85%
80%
75%
70%
65%
60%
10
100
95
90
85
80
75
70
65
60
0
Conversion Efficiency vs. Supply Voltage and LED current
Efficiency 1x3W/3x3WLED vs. Vcc @ L=660µH
3LED / 0.25 Ohm
3LED / 0.33 Ohm
3LED / 0.50 Ohm
3LED / 1.00 Ohm
1LED / 0.25 Ohm
1LED / 0.33 Ohm
1LED / 0.50 Ohm
1LED / 1.00 Ohm
15 20 25 30 35
Supply Voltage (V)
Efficiency 1x3W/3x3WLED vs. Vcc @ L=330µH
40
3LED / 0.20 Ohm
3LED/ 0.25 Ohm
3LED / 0.33 Ohm
3LED / 0.50 Ohm
3LED / 1.00 Ohm
1LED / 0.20 Ohm
1LED / 0.25 Ohm
1LED / 0.33 Ohm
1LED / 0.50 Ohm
1LED / 1.00 Ohm
15 20 25 30 35 40
Supply Voltage (V)
Efficiency vs. LED current @ L= 330 µH / 660 µH, Vcc=15V
1LED / 330µH
3LED / 330µH
1LED / 660µH
3LED / 660µH
100 200 300 400 500 600 700 800 900
LED Current (m A)
© PREMA Semiconductor GmbH 2007-2008
Page 6/20
Rev 4808

6 Page



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共有リンク

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部品番号部品説明メーカ
PR4101

High Power LED Buck Driver

PREMA
PREMA


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