ISL97678IRZ-TK Просмотр технического описания (PDF) - Renesas Electronics
Номер в каталоге
Компоненты Описание
Список матч
ISL97678IRZ-TK Datasheet PDF : 17 Pages
| |||
ISL97678
Electrical Specifications All specifications below are characterized at TA = -40°C to +85°C; VIN = 12V, EN = 5V, RSET = 36kΩ, unless
otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
DESCRIPTION
TEST CONDITIONS
MIN
MAX
(Note 7)
TYP
(Note 7) UNITS
Eff_peak
Peak Efficiency
DMAX
DMIN
fSW
ILX_leakage
Boost Maximum Duty Cycle
Boost Minimum Duty Cycle
Boost Switching Frequency
Lx Leakage Current
VIN = 24V, 96LEDs, 20mA
each, L = 10µH with DCR
100mΩFSW = 600kHz,
TA = +25°C
VIN = 12V, 96 LEDs, 20mA
each, L = 10µH with DCR
100mΩFSW = 600kHz,
TA = +25°C
VIN = 6V, 96 LEDs, 20mA
each, L = 10µH with DCR
100mΩFSW = 600kHz,
TA = +25°C
VIN = 24V, 80 LEDs, 40mA
each, L = 10µH with DCR
100mΩFSW=600kHz,
TA = +25°C
VIN = 12V, 80 LEDs, 40mA
each, L = 10µH with DCR
100mΩFSW = 600kHz,
TA = +25°C
fSW = 500kHz
fSW = 500kHz
RFSW = 100kΩ
RFSW = 33kΩ
VLX = 45V, EN= 0V
90
0.45
1.35
92.4
91.5
81.6
93.4
90.7
0.5
1.5
%
%
%
%
%
%
10
%
0.55
MHz
1.65
MHz
10
µA
REFERENCE
IMATCH
IACC
Channel-to-Channel Current Matching
Absolute Current Accuracy
FAULT DETECTION
ILED = 20mA
-1.1
±0.7
+1.1
%
RSET = 36kΩTA = +25°C
-1.5
+1.5
%
RSET = 36kΩ
-2
TA = -40°C to +80°C
+2
%
VSC
Vtemp
Vtemp_acc
VOVP
DIGITAL INTERFACE
Channel Short Circuit Threshold
Over-Temperature Threshold
Over-Temperature Threshold Accuracy
Overvoltage Limit on OVP Pin
3.3
4.6
V
150
°C
5
°C
1.18
1.22
1.24
V
VIL
Logic Input Low Voltage
VIH
Logic Input High Voltage
CURRENT SOURCES
0.8
V
1.5
5.5
V
VHEADROOM
Dominant Channel Current Source Headroom at ILED = 50mA
CH Pin
TA = +25°C
VHEADROOM_RANGE Dominant Channel Current Sink Headroom Range ILED = 50mA
at CHx Pin
TA = +25°C
VRSET
Voltage at RSET Pin
1.0
V
(Note 10)
90
mV
1.18
1.21
1.24
V
FN6998 Rev.3.00
Sep 8, 2017
Page 6 of 17
Share Link: 