MIC3231YTSE Micrel Inc, MIC3231YTSE Datasheet - Page 4

• Manufacturer Part Number: MIC3231YTSE
• Description: Boost Driver Controller With Dither For High Power LEDs
• Manufacturer: Micrel Inc
• Type: High Power, Constant Currentr

Specifications of MIC3231YTSE

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: General Purpose
• Frequency: 100kHz ~ 1MHz
• Voltage - Supply: 6 V ~ 45 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Current - Output / Channel: -
• Efficiency: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3404-5

Micrel, Inc.
Absolute Maximum Ratings
Supply Voltage (V
Enable Pin Voltage........................................... -0.3V to +6V
IADJ Voltage ..................................................................+6V
Lead Temperature (soldering, sec.) ........................... 260°C
Storage Temperature (Ts)..........................-65°C to +150°C
ESD Rating
Electrical Characteristics
V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
5. Guaranteed by design
March 2011
Symbol
V
UVLO
I
I
V
I
D
V
I
V
f
f
f
F
V
I
IN
VIN
SD
ADJ
EN
PWMD
SW
SW
SENSE
DITHER
IN
IADJ
EN
PWM
SENS
MAX
= 12V; V
MIC3230 ....................................... 1500V HB, 100VMM
MIC3232 ........................................... 2kV HB, 100VMM
MIC3231 ....................................... 1500V HB, 150VMM
EN
Under Voltage Lockout
Parameter
Supply Voltage Range
Quiescent Current
Shutdown Current
Feedback Voltage (at IADJ)
Feedback Input Current
Line Regulation
Load Regulation
Maximum Duty Cycle
Enable Threshold
Enable Pin Current
PWMD Threshold
PWMD Frequency Range
Programmable Oscillator
Frequency
Fixed Frequency Option
Low EMI (MIC3231)
Current Limit Threshold Voltage
I
(3)
SENSE
= 3.6V; L = 47µH; C = 4.7µF; T
Peak Current Out
IN
) .....................................................+48V
(4)
(1)
J
= 25°C, Bold values indicate –40°C≤ T
Condition
V
switching)
V
Room temperature (3%)
–40°C≤ T
V
V
V
MIC3230 & MIC3232
MIC3231
Turn ON
Turn OFF
V
REN = 100kΩ
Turn ON
Turn OFF
Note 5 (L = 47µH; C = 4.7µF)
R
R
R
(MIC3232YMM)
Frequency dither shift from nominal
R
R
FB
EN
FB
IN
OUT
EN
FREQ
FREQ
FREQ
SENSE
SENSE
= 12V to 24V
> 275mV (to ensure device is not
= 250mV
= 0V
= 3.3V
to 2 × V
= 82.5kΩ
= 21kΩ
= 8.25kΩ
= 390Ω
= 390Ω
J
≤ +125°C (5%)
OUT
4
Operating Ratings
Supply Voltage (V
Junction Temperature (TJ)........................ –40°C to +125°C
Junction Thermal Resistance
MSOP (θ
EPAD TSSOP (θ
MLF
®
(θ
JA
JA
).......................................................60.7°C/W
J
) ...................................................130.5°C/W
≤ +125°C, unless noted.
IN
)......................................... +6V to +45V
JA
).........................................36.5°C/W
(2)
242.5
237.5
0.315
Min
360
360
3.5
1.5
1.5
90
88
6
0
1.15
0.75
0.45
Typ
250
250
109
400
950
400
±12
250
4.9
3.2
1.2
1.1
0.7
30
17
2
2
257.5
262.5
0.585
M9999-030311-D
Max
500
440
440
5.5
0.4
0.4
45
10
30
3
MIC3230/1/2
Units
kHz
kHz
kHz
kHz
mA
mV
mV
µA
µA
µA
µA
Hz
%
%
%
%
%
V
V
V
V
V
V
V