Absolute maximum ratings HVLED002
4/19 DocID028720 Rev 1
1 Absolute maximum ratings
Table 2. Absolute maximum ratings
(1)
1. All voltages are with respect to the pin 5, all currents are positive into the specified terminal.
Symbol Parameter Value Unit
V
i
Supply voltage 30 V
I
O
Output current ± 1 A
E
O
Output energy (capacitive load) 5 µJ
Analog inputs (pins 2, 3) - 0.3 to 5.5 V
Error amplifier output sink current 10 mA
DocID028720 Rev 1 5/19
HVLED002 Pin connection and functions
19
2 Pin connection and functions
Figure 2. Pin connection (top view)
3 Thermal data
Table 3. Pin functions
No. Function Description
1 COMP This pin is the error amplifier output and is made available for loop compensation.
2V
FB
This is the inverting input of the error amplifier. It is normally connected to the
switching power supply output through a resistor divider.
3I
SENSE
A voltage proportional to the inductor current is connected to this input. The PWM
uses this information to terminate the output switch conduction.
4R
T
/C
T
The oscillator frequency and maximum output duty cycle are programmed by the
connecting resistor R
T
to V
REF
and the capacitor C
T
to ground. An operation to
500 kHz is possible.
5 GROUND This pin is the ground reference of the device.
6OUTPUT
This output directly drives the gate of a power MOSFET. Peak currents up to 1 A
are sourced and sunk by this pin.
7V
i
This pin is the positive supply of the control IC.
8V
REF
This is the reference output. It provides the charging current for the capacitor C
T
through the resistor R
T
.
Table 4. Thermal data
Symbol Description SO8 Unit
R
th j-amb
Thermal resistance junction ambient 150 °C/W
T
stg
Storage temperature range -65 to 150 °C
T
J
Junction operating temperature -40 to 150 °C
T
L
Lead temperature (soldering 10 s) 300 °C
Electrical characteristics HVLED002
6/19 DocID028720 Rev 1
4 Electrical characteristics
Unless otherwise stated, these specifications apply for 0 T
amb
85 °C; V
i
= 15 V;
R
T
= 10 K; C
T
= 3.3 nF
(a)
.
a. Max. package power dissipation limits must be respected; low duty cycle pulse techniques are used during the test
maintaining T
J
as close to T
amb
as possible.
Table 5. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
SUPPLY VOLTAGE
V
i
Max. operative volt. 25 V
REFERENCE SECTION
V
REF
Output voltage T
J
= 25 °C, I
o
= 1 mA 4.95 5.00 5.05 V
V
REF
Line regulation 12 V Vi 25 V 2 20 mV
V
REF
Load regulation 1 I
o
20 mA 3 25 mV
V
REF
/T Temperature stability
(1)
0.2 mV/°C
Total output variation Line, load, temperature 4.82 5.18 V
e
N
Output noise voltage 10 Hz f 10 KHz, T
j
= 25 °C
(1)
50 µV
Long term stability T
amb
= 125 °C, 1000 hrs
(1)
525mV
I
SC
Output short-circuit -30 -100 -180 mA
OSCILLATOR SECTION
f
OSC
Frequency
T
J
= 25 °C
T
A
= 0 to 85 °C
T
J
= 25 °C (R
T
= 6.2 k, C
T
= 1 nF)
49
48
225
52
-
250
55
56
275
KHz
f
OSC
/V Frequency change with volt. V
CC
= 12 V to 25 V - 0.2 1 %
f
OSC
/T Frequency change with temp. T
amb
= 0 °C to 85 °C - 0.5 - %
V
OSC
Oscillator voltage swing Peak-to-peak - 1.6 - V
I
dischg
Discharge current (V
OSC
= 2 V) T
J
= 25 °C 7.8 8.3 8.8 mA
T
A
= 0°C to 85°C 7.6 - 8.8 mA
ERROR AMPLIFIER SECTION
V
REF,EA
Input voltage V
(COMP)
= 2.5 V 2.42 2.50 2.58 V
I
b
Input bias current V
FB
= 5 V -0.1 -2 µA
A
VOL
2 V V
o
4 V 65 90 dB
BW Unity gain bandwidth T
J
= 25 °C
(1)
0.7 1 MHz
PSRR Power supply reject. ratio 12 V V
i
25 V 60 70 dB
I
o
Output sink current V
(VFB)
= 2.7 V, V
(COMP)
= 1.1 V 2 12 mA

HVLED002

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
LED Lighting Drivers High performance current mode LED controller
Lifecycle:
New from this manufacturer.
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