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PR4101 Datasheet(PDF) 3 Page - PREMA Semiconductor.

Part # PR4101
Description  High Power LED Buck Driver
PDF  24 Pages
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Manufacturer  PREMA [PREMA Semiconductor.]
Direct Link  https://www.prema.com/
Logo PREMA - PREMA Semiconductor.

PR4101 Datasheet(HTML) 3 Page - PREMA Semiconductor.

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LED Driver PR4101
Electrical Characteristics
Vcc=12 VDC, Ta = 25°C, L=470 µH (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Vcc
Supply voltage
7
40
[V]
VDI
Undervoltage detection
Start-up
Shut-off
6.0
7.0
9.0
[V]
[V]
IsuppOFF
Supply current, PwrDwn=0 V
30
[µA]
IsuppON
Supply current,
PwrDwn=open
3.0
[mA]
VNDRV
Gate output voltage HIGH
3.0
3.8
[V]
IOUTsource
Output source current at NDRV
50
[mA]
IOUTsink
Output sink current at NDRV
20
[mA]
fOP
Operating center frequency
125
[kHz]
fSP
Frequency spreading
5
[%]
VSENSE
Threshold voltage at RSENSE
Pin RTK not
connected
200
[mV]
tDELAY
Delay start period
(PR4101A only)
250
[µs]
VRefPWM
Threshold voltage PWM input
(PR4101A only)
1000
[mV]
fPWM
Frequency of external PWM
signal (PR4101A only)
500
[Hz]
tPWM
Min. pulse duration of PWM
(PR4101A only)
2
[µs]
VTEMP
Output voltage of internal
temperature sensor at pin
TEMP (PR4101A only)
Tchip = 100°C
Tchip = 0°C
1.60
2.15
[V]
[V]
TOT
Overtemperature protection
junction temperature
Shut-off
Resume
125
90
[°C]
[°C]
© PREMA Semiconductor GmbH 2006-2014 I rev. 1014
Page 3/24



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