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| LM3537_13 Datasheet, PDF (11/33 Pages) Texas Instruments – 8-Channel WLED Driver with Four Integrated LDOs | |||
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LM3537
www.ti.com
SNVS634B â JUNE 2011 â REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: VIN_A,B,C = 3.6V, CIN_A = COUT = 1.0 µF, CIN_B = 0.1 µF, CIN_C = 4.7 µF, C1 = C2= 1.0 µF, CLDOx= 1.0
µF, TA = 25°C.
Quiescent Current
Quiescent Current
vs
vs
Input Voltage
Input Voltage 3/2Ã Gain
1Ã Gain
3/2Ã Gain
LED Current Matching Distribution.
6 Drivers on Group A, Output Set to 25 mA.(1)
Charge Pump 1.5x Efficiency
vs
Load Current
(1) For the two groups of current sinks on a part (group A and group B), the following are determined: the maximum sink current in the
group (MAX), the minimum sink current in the group (MIN), and the average sink current of the group (AVG). For each group, two
matching numbers are calculated: (MAX-AVG)/AVG and (AVG-MIN)/AVG. The largest number of the two (worst case) is considered the
matching figure for the group. The matching figure for a given part is considered to be the highest matching figure of the two groups.
The typical specification provided is the most likely norm of the matching figure for all parts.
Copyright © 2011â2013, Texas Instruments Incorporated
Product Folder Links: LM3537
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