LM3431QMH/NOPB National Semiconductor, LM3431QMH/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM3431QMH/NOPB
• Description: IC LED DRVR HP CONS CURR 28TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3431QMH/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 3
• Internal Driver: No
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 651kHz ~ 1.1MHz
• Voltage - Supply: 4.5 V ~ 36 V
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 200mA
• Internal Switch(s): Yes
• Efficiency: 88%
• Operating Supply Voltage (typ): 5/9/12/15/18/24V
• Number Of Segments: 6
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Package Type: TSSOP EP
• Pin Count: 28
• Mounting: Surface Mount
• Power Dissipation: 3.1W
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 36V
• Led Driver Application: Display Backlighting, Automotive Lighting
• No. Of Outputs: 3
• Output Current: 200mA
• Output Voltage: 40V
• Input Voltage: 5V To 37V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Compliant
• Other names: LM3431QMH

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: The Thermal Resistance specifications are based on a JEDEC standard 4-layer pcb. θ
will vary with board size and copper area.
JA
, the junction-to-ambient thermal resistance, θ
Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature, T
,
J_MAX
JA
)/θ
and the ambient temperature, T
. The maximum allowable power dissipation at any ambient temperature is calculated using: P
= (T
– T
. The
A
D_MAX
J_MAX
A
JA
maximum power dissipation is determined using T
= 25°C, and T
= 125°C.
A
J_MAX
Note 5: All room temperature limits are 100% production tested. All limits at temperature extremes are guaranteed through correlation using standard Statistical
Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Note 6: IQ specifies the current into the VIN pin and applies to non-switching operation.
Note 7: V
specifies the maximum absolute difference between the offset of any pair of SNS amplifiers.
OS_DELTA
Note 8: The minimum DIM pulse width is an internal signal. Any pulse width may be applied to the DIM pin or generated via analog dimming mode. A pulse width
less than 0.4 µs will be internally extended to 0.4 µs.
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