MIC2843YMT TR Micrel Inc, MIC2843YMT TR Datasheet - Page 3

• Manufacturer Part Number: MIC2843YMT TR
• Description: Six Channel Current Sink In 2x2 Thin MLFr
• Manufacturer: Micrel Inc
• Type: PWM Controlr

Specifications of MIC2843YMT TR

• Constant Current: Yes
• Topology: Linear (LDO), PWM
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 500kHz
• Voltage - Supply: 3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 10-TMLF®
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 20mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3507-2

Absolute Maximum Ratings
Main Input Voltage (V
Enable Input Voltage (V
Current Source Voltage (V
Power Dissipation .....................................Internally Limited
Lead Temperature (soldering, 10sec.)....................... 260°C
Storage Temperature (T
ESD Rating
Electrical Characteristics
WLED Linear Drivers
V
Notes:
1.
2.
3.
4.
5.
Micrel Inc.
November 2010
IN
Parameter
Current Accuracy
Matching
Drop-out
Ground/Supply Bias Current
Shutdown Current
(Current Source Leakage)
PWM Dimming
Enable Input Voltage (V
Enable Input Current
Current Source Delay
(50% levels)
Current Source Transient Time
(10% − 90%)
Standby to Shutdown Time
= V
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
As determined by average current of all channels in use and all channels loaded.
The current through each LED meets the stated limits from the average current of all LEDs.
END
(5)
= 3.8V, R
(3)
................................................. ESD Sensitive
(4)
SET
= 20.5kΩ; V
IN
END
) .................................. −0.3V to +6V
END
s
) .........................−65°C to +150°C
)
D1-D6
) ............................ −0.3V to +6V
) ..................... −0.3V to +6V
D1-D6
Conditions
V
V
Where I
V
I
V
Logic Low
Logic High
V
Shutdown to On
Standby to On
On to Standby
R
T
T
V
OUT
DROPNOM
DROPNOM
DROPNOM
END
IH
RISE
FALL
END
SET
= 0.6V; T
> 1.2V
= 20mA
(1)
= 0V
= 20.5k
= 0V
LED
= 0.6V
= 0.6V
= 0.6V, 100% brightness level
= 90% of LED current seen at
J
= 25°C, bold values indicate –40°C ≤ T
3
Operating Ratings
Supply Voltage (V
Enable Input Voltage (V
Current Source Voltage (V
Junction Temperature (T
Junction Thermal Resistance
2mm x 2mm Thin MLF
IN
J
)..................................... +3.0V to +5.5V
≤ 125°C; unless noted.
END
J
Min.
(2)
) ........................ –40°C to +125°C
1.2
10
D1-D6
®
) .................................. 0V to V
-10L (θ
) ............................ 0V to V
Typ.
0.01
0.01
1.5
1.4
0.5
0.3
JA
40
40
20
3
1
1
)......................90°C/W
M9999-110810-B
Max.
100
5.5
0.2
60
40
1
1
MIC2843
Units
mV
mA
ms
µA
µA
µs
µs
µs
µs
µs
%
%
V
V
IN
IN