DocID028720 Rev 1 7/19
HVLED002 Electrical characteristics
19
Io
Output source current V
(VFB)
= 2.3 V, V
(COMP)
= 5 V -0.5 -1 mA
V
COMP
high
V
(VFB)
= 2.3 V; R
L
= 15 K between
COMP and ground
56.2 V
VCOMP low
V
(VFB)
= 2.7 V; R
L
= 15 K between
COMP and VREF
0.8 1.1 V
CURRENT SENSE SECTION
G
V
Gain
(2)
,
(3)
3V/V
MAXCS Maximum input signal V
(COMP)
= 5.6 V 258 267 276 mV
SVR Supply voltage rejection 12 Vi 25 V
(1)
70 dB
I
b
Input bias current -2 -10 µA
Delay to output 150 300 ns
OUTPUT SECTION
V
OL
Output low level I
SINK
= 20 mA 0.1 0.4 V
I
SINK
= 200 mA 1.6 2.2 V
V
OH
Output high level I
SOURCE
= 20 mA 13 13.5 V
I
SOURCE
= 200 mA 12 13.5 V
V
OLS
UVLO saturation VCC = 6 V; I
SINK
= 1 mA 0.1 1.1 V
t
r
Rise time T
J
= 25 °C; C
L
= 1 nF
(1)
50 150 ns
t
f
Fall time T
J
= 25 °C; C
L
= 1 nF
(1)
50 150 ns
UNDERVOLTAGE LOCKOUT SECTION
V
ON
Start threshold Increasing voltage 7.8 8.4 9.0 V
V
OFF
Min. operating voltage after
turn-on
Decreasing voltage 7.0 7.6 8.2 V
PWM SECTION
Maximum duty cycle 94 96 100 %
Minimum duty cycle 0 %
TOTAL STANDBY CURRENT
I
st
Start-up current 0.3 0.5 mA
I
i
Operating supply current V
(VFB)
= V
(COMP)
= 0 V 12 17 mA
1. These parameters, although guaranteed, are not 100% tested in production.
2. Parameter measured at the trip point of the latch with V
(VFB)
= 0.
3. Gain defined as : A = V
(COMP)
/V
(ISENSE)
; 0 V
(ISENSE)
267 mV.
Table 5. Electrical characteristics (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Electrical characteristics HVLED002
8/19 DocID028720 Rev 1
Figure 3. Open loop test circuit
High peak currents associated with capacitive loads necessitate careful grounding
techniques. Timing and bypass capacitors should be connected close to the pin 5 in a single
point ground. The transistor and 5 K potentiometer are used to sample the oscillator
waveform and apply an adjustable ramp to the pin 3.
R
T
A2N2222
ERROR AMP.
ADJUST
I
SENSE
ADJUST
COMP
V
FB
I
SENSE
R
T
/C
T
1
2
3
4
C
T
7
6
5
8
V
REF
V
i
OUTPUT
GROUND
0.1 μF
0.1 μF
V
REF
V
i
OUTPUT
GROUND
1W
HVLED002
AM039820
Figure 4. Timing resistor vs. oscillator
frequency
Figure 5. Output deadtime vs. oscillator
frequency
DocID028720 Rev 1 9/19
HVLED002 Electrical characteristics
19
Figure 6. Oscillator discharge current
vs. temperature
Figure 7. Maximum output duty cycle vs. timing
resistor
Figure 8. Error amplifier open loop gain and
phase vs. frequency
Figure 9. Current sense input threshold
vs. error amplifier output voltage

HVLED002

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