LM3432BSQE National Semiconductor, LM3432BSQE Datasheet - Page 5

• Manufacturer Part Number: LM3432BSQE
• Description: LM3432/LM3432B 6-Channel Current Regulator for LED Backlight Application; Package: LLP; No of Pins: 24; Qty per Container: 250; Container: Reel
• Manufacturer: National Semiconductor

Input Characteristics
VCC Regulator
Analog PWM control
Digital PWM control
Dynamic Headroom Control Output
V
V
V
CCUVLO_HYST
V
V
I
V
V
V
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
junction temperature (T
correlation. V
4). Parameter limits apply to both the LM3432 and LM3432B unless otherwise indicated.
V
DHC_REG_20
DHC_REG_40
VDHC_MAX
VIN Voltage
IREF Voltage
IOUT1 through IOUT6 Voltage
VCC Voltage
EN Voltage
FAULTb, OTMb Voltage
MODE Voltage
PWM Voltage
VDHC Voltage
CDHC Voltage
Symbol
V
V
V
PWM_HIGH
I
PWM_LOW
V
MODE_PK
MODE_VA
DHC_MAX
EN_HYST
VCC_SC
I
CCUVLO
I
CCreg_1
CCreg_2
SHDN
MODE
V
CCreg
I
I
EN
Q
EN
Parameter
Shutdown Input Supply Current
Quiescent Current from VIN
Enable Threshold Voltage
Enable Threshold Hysteresis
Enable pin Pull-up Current
VCC Regulated Output
VCC Regulated Output at Max. VIN
VCC Regulated Output at Min. VIN
VCC Short-Circuit Current
VCC UVLO Upper Threshold
VCC UVLO Hysteresis
MODE pin Output Current
MODE pin Peak Voltage
MODE pin Valley Voltage
PWM Voltage HIGH
PWM Voltage LOW
VDHC pin Max. Output Voltage
VDHC pin Max. Output Current
VDHC Regulation at 20mA
VDHC Regulation at 40mA
IN
= 18V, R
J
) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical
IREF
= 54.7 kΩ, V
EN
= 5V, V
Limits in standard type are for T
-0.3V to 42V
-0.3V to 82V
(Notes 1, 6)
-0.3V to 7V
-0.3V to 7V
-0.3V to 7V
-0.3V to 7V
-0.3V to 7V
-0.3V to 7V
-0.3V to 7V
-0.3V to 7V
MODE
= 0V, V
Conditions
EN = 0V, DIM = 0V
V
EN = 0V
EN = 2V
V
V
V
VCC rising
MODE = 2V
C
C
MODE = GND
MODE = GND
I
V
R
R
VDHC
EN
IN
IN
IN
DHC
MODE
MODE
IREF
IREF
5
DIM
= 40V
= 6V, I
= 6V, VCC = 0V
rising
= 1.2V
= 2mA
= 54.7k, C
= 27.5k, C
Operating Ranges
= 5V and V
ESD Susceptibility (Note 2)
Lead Temperature
Maximum Junction Temp.
Supply Voltage, VIN
IOUT1 through IOUT6 Voltage
Operating Junction Temp.
Storage Temperature
Thermal Resistance, θ
LLP-24
eTSSOP-28
= 5.6nF
= 5.6nF
Human Body Model
Vapor Phase (60 sec.)
Infra-red (15 sec.)
VCC
= 2mA
J
DHC
DHC
= 25°C only; limits in boldface type apply over the
OUT1-6
= 100nF
= 100nF
= 1.2V unless otherwise indicated (Note
JA
(Note 3)
(Note 1)
1.48
Min
4.7
4.7
3.9
1.7
2
5
0.375
0.625
2.25
1.75
4.15
1.25
Typ
0.4
0.5
4.8
3.1
1.0
2.5
40
34
5
5
5
9
9
-40°C to +125°C
-65°C to +150°C
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Max
2.65
5.25
5.25
4.4
90
33.2°C/W
2
1
6 to 40V
0 to 80V
29°C/W
215°C
220°C
150°C
2.0kV
Units
mA
mA
mA
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
V
V
V