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LP8866S-Q1 Datasheet(PDF) 9 Page - Texas Instruments

Part # LP8866S-Q1
Description  LP8866S-Q1 Automotive Display LED-backlight Driver with Six 150-mA Channels
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP8866S-Q1 Datasheet(HTML) 9 Page - Texas Instruments

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6.5 Electrical Characteristics (continued)
Limits apply over the full operation temperature range –40°C ≤TA ≤ +125°C , unless otherwise speicified. VIN = 12 V, VDD =
3.3 V
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VINOVP_T
H
OVP threshold
VSENSE_P rising
40.8
43
45.2
V
VINOVP_H
YS
OVP hysteresis
1.7
V
VINOCP_T
H
Input OCP threshold
RISENSE = 20 mΩ
187
220
253
mV
TSD
Thermal shutdown threshold(1)
Temperature rising
150
165
180
°C
TSD
Thermal shutdown hysteresis(1)
20
°C
ISD_LEAKA
GE
SD leakage current
VSD = 48 V
1
µA
ISD
SD pull down current
RSD = 20 kΩ
250
325
400
µA
VFB_OVPL FB pin - Boost OVP low threshold
1.423
V
VFB_OVPH FB pin - Boost OVP high threshold
1.76
V
VFB_UVP FB pin - Boost OCP threshold
0.886
V
VBST_OVP
H
Discharge pin - Boost OVP high threshold
48.5
50
51.8
V
Input PWM Electrical Characteristics
IPWM_LEA
KAGE
PWM leakage current
VPWM = 5 V
1
µA
fPWM_IN
PWM input frequency
100
20000
Hz
tPWM_MIN
_ON
PWM input minimum on-time
Direct PWM mode
200
ns
tPWM_MIN
_ON
PWM input minimum on-time
Phase Shift PWM mode, Hybrid mode,
Current Dimming mode
200
220
ns
PWM_IN
RES
PWM input resolution
fPWM_IN = 100 Hz
16
bit
PWM_IN
RES
PWM input resolution
fPWM_IN = 20 kHz
10
bit
LED Current Sink and LED PWM Electrical Characteristics
ILEAKAGE Leakage current on OUTx
OUTx = VOUT = 45 V, EN= L
0.1
2.5
µA
VISET
ISET voltage
1.17
1.21
1.25
V
IMAX
Maximum LED sink current
OUTx
200
mA
VISET_UVL
O
ISET pin undervoltage
0.97
1
1.03
V
RISET
ISET Resistor range
IOUT = 30 mA to 200 mA
15.6
104
kΩ
ILED_LIMIT
LED current limit when ISET pin short to
GND
280
mA
IACC
LED sink current accuracy
RISET = 15.6 kΩ, IOUT = 150 mA, PWM =
100%
-4
4
%
IMATCH
LED sink current matching
RISET = 15.6 kΩ, IOUT = 150 mA, PWM =
100%
1
3.5
%
www.ti.com
LP8866S-Q1
SNVSBD1A – AUGUST 2020 – REVISED FEBRUARY 2021
Copyright © 2021 Texas Instruments Incorporated
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