LED5000PHR STMicroelectronics, LED5000PHR Datasheet - Page 31

• Manufacturer Part Number: LED5000PHR
• Description: Current & Power Monitors & Regulators 3A monolithic Conv 850kHz Synch
• Manufacturer: STMicroelectronics

Specifications of LED5000PHR

• Rohs: yes
• Product: Current Regulators
• Supply Voltage - Max: 48 V
• Supply Voltage - Min: 5.5 V
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Package / Case: HPSO-8
• Accuracy: +/- 3 %
• Input Voltage Range: 5.5 V to 48 V
• Output Current: 23 uA
• Sensing Method: High or Low Side
• Supply Current: 1.7 mA

LED5000
5.13
Figure 19. constant current protection triggering hiccup mode
Application circuit
Figure 20. Evaluation board application circuit
The network D3, R4, RS implements an inexpensive overvoltage protection. R4 effect can
be neglected during normal operation since the FB biasing current is negligible (tens of nA,
see
In case the load is disconnected or in case of open LED:
GND
DIM
VIN
INH
Table 5: Electrical characteristics
10uF
TP1
TP2
TP8
50V
TP3
C1
10uF
50V
C2
100nF
50V
C3
R1
JP2
JP1
Doc ID 023951 Rev 1
10k
R2
NM
) but it limits the current flowing in the Zener diode D3.
1
2
7
3
D2
U1
BOOT
DIM
VIN
INH
GND
6
C6
EP
EP
100nF
LED5000
R3
24.9K
C4
470pF
COMP
SW
4
FB
Application notes - buck conversion
C5
22pF
8
5
small signal
power plane
D3
R4
L1
47uH
BZX384-C39
47k
RS
R56
C7
1uF
50V
C8
NM
TP4
TP5
TP6
AM13503v1
AM13504v1
VLED-
VLED+
GND
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