R2A20134SP Datasheet, PDF (5/11 Pages) Renesas Technology Corp – LED Lighting Power Controller

R2A20134SP
Preliminary
Electrical Characteristics
(Ta = 25°C, VCC = 15 V, CS = 0 V, FB = COMP, RRT = 200 k)
Item
Symbol
Min Typ Max Unit
Test Conditions
Supply
UVLO turn-on threshold Vuvlh
11.2 12 12.8
V
UVLO turn-off threshold Vuvll
8.5 9.2 9.9
V
UVLO hysteresis
Hysuvl
2.1 2.8 3.5
V
Standby current
Istby
— 130 250
A VCC = Vuvlh – 0.2 V
Operating current
Icc
— 2.2 3.3
mA
VREF
Reference voltage
Temperature stability
Vref
dVref
4.945 5.020 5.095
V
Isource = 0 mA
—
80
— ppm/°C Tj = –40 to 150°C *¹
Line regulation
Vref-line
—
5
20
mV Isource = 0 mA
Vcc = 10 V to 24 V
Load regulation
Vref-load
—
5
20
mV Isource = 0 mA to –5 mA
Error
Feedback voltage
Vfb
amplifier _{Input bias current}
Ifb
0.587 0.605 0.623
V
–0.75 –0.25 –0.1
A Measured pin: FB
Open loop gain
Av
—
63
—
dB
Upper clamp voltage
Vclamp_comp 3.85 4.10 4.30
V
FB = 0.3 V
COMP: Open
Low voltage
Vl-comp
— 0.1 0.3
V
FB = 0.9 V
COMP: Open
Source current
Isrc-comp
–13 –9.5 –6
A FB = 0.3 V
COMP: 2.5 V
Sink current
Isnk-comp
6
9.5 13
A FB = 0.9 V
COMP: 2.5 V
Transconductance
gm
25
45
70
s FB = 0.55 V  0.65 V
COMP: 2.5 V
RT
RAMP offset voltage
Voffset_ramp
—
1.0
—
V
RAMP amplitude
dVramp
2.9 3.1 3.3
V
*2
RT voltage1
V-rt1
1.9 2.0 2.1
V
RT-GND: 200 k
RT voltage2
V-rt2
2.9 3.0 3.1
V
RT-Vref: 200 k
Zero
current
detector
ZCD threshold voltage
Input bias current
Vzcd
Ics
7
13
19
–85 –53 –25
mV
A Vcs = 13 mV
Restart Restart time delay
Tstart
45
75 140
s FB = 0.3 V, COMP = 2.5 V
Notes: *1 Design spec
*2 dVramp = Vclamp_comp – Voff_ramp
R03DS0033EJ0200 Rev.2.00
Jun 03, 2011
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