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LP8862-Q1 Datasheet(PDF) 9 Page - Texas Instruments

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Part # LP8862-Q1
Description  High-Performance 2-Channel LED Driver
Download  37 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP8862-Q1 Datasheet(HTML) 9 Page - Texas Instruments

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RISET (k:)
20
40
60
80
100
120
140
160
180
200
220
20
40
60
80
100
120
140
160
D001
200
600
1000
1400
1800
2200
20
60
100
140
180
220
R
FSET (k
)
C009
200
300
400
500
600
700
800
900
1000
5
10
15
20
25
30
Input Voltage (V)
Vboost = 22 V
Vboost = 30 V
Vboost = 37 V
C003
200
300
400
500
600
700
800
900
1000
5
10
15
20
25
30
Input Voltage (V)
Vboost = 22 V
Vboost = 30 V
Vboost = 37 V
C004
200
300
400
500
600
700
800
900
1000
5
10
15
20
25
30
Input Voltage (V)
Vboost = 22 V
Vboost = 30 V
Vboost = 37 V
C001
200
300
400
500
600
700
800
900
1000
5
10
15
20
25
30
Input Voltage (V)
Vboost = 22 V
Vboost = 30V
Vboost = 37 V
C002
LP8862-Q1
www.ti.com
SNVSA75A – NOVEMBER 2015 – REVISED NOVEMBER 2015
6.13 Typical Characteristics
Unless otherwise specified: D = NRVB460MFS, T = 25ºC
ƒSW = 300 kHz
L = 33
μH
DC load (PWM = 100%)
ƒSW = 800 kHz
L = 15
μH
DC load (PWM = 100%)
CIN and COUT = 33 µF + 2 × 10 µF (ceramic)
CIN and COUT = 2 × 10 µF (ceramic)
Figure 1. Maximum Boost Current
Figure 2. Maximum Boost Current
ƒSW = 1.5 MHz
L = 8.2
μH
DC load (PWM = 100%)
ƒSW = 2.2 MHz
L = 4.7
μH
DC load (PWM = 100%)
CIN and COUT = 2 × 10 µF (ceramic)
CIN and COUT = 2 × 10 µF (ceramic)
Figure 3. Maximum Boost Current
Figure 4. Maximum Boost Current
Figure 5. LED Current vs RISET
Figure 6. Boost Switching Frequency fSW vs RFSET
Copyright © 2015, Texas Instruments Incorporated
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