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MP24895GQ-P

P1-P3P4-P6P7-P9P10-P12P13-P13
MP24895
Step-down White-LED Driver
Wide 6-36V Input Voltage
MP24895 Rev. 1.0 www.MonolithicPower.com 1
8/6/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP24895 is step-down LED driver, which
is designed in continuous current mode for
driving the high-brightness LEDs from a wide
input voltage of 6V to 36V.
The MP24895 employs a hysteretic control
scheme to regulate LED current. Moreover, the
control scheme provides optimal loop
stabilization and a very quick response time.
For a high accuracy, the MP24895 senses LED
current by an external high-side resistor. Its low
100mV average feedback voltage reduces
power loss and improves the efficiency.
The MP24895 implements PWM and analog
dimming together on the EN/DIM pin.
The MP24895 includes under-voltage lockout,t
and thermal overload protection to prevent
damage in the event of an output overload.
The MP24895 is available in TSOT23-5 and
QFN-6 packages.
FEATURES
• Internal 36V MOSFET
• Wide 6V-to-36V Input Range
• 1A Output Current
• High Efficiency
• Hysteretic Control
• PWM and Analog Dimming
• 1000:1 PWM Dimming Resolution
• UVLO, Thermal Shutdown
• Available in TSOT23-5 and QFN-6
Packages
APPLICATIONS
• Low-Voltage Halogen Replacement
• Low-Voltage General Illumination
• Automotive/Decorative LED Lighting
• Signs/Emergency Lighting
• LED Backlighting
A
ll MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MP24895
IN RS
EN/DIM
GND
SW
VIN
6 – 36V
C
IN
RSENSE
L
D
MP24895 – STEP-DOWN WHITE-LED DRIVER WITH 6-36V INPUT VOLTAGE
MP24895 Rev. 1.0 www.MonolithicPower.com 2
8/6/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking
MP24895GJ*
TSOT23-5
AKD
MP24895GQ**
QFN-6 (3x3mm)
AKD
* For Tape & Reel, add suffix –Z (e.g. MP24895GJ–Z);
* *For Tape & Reel, add suffix –Z (e.g. MP24895GQ–Z);
PACKAGE REFERENCE
TSOT23-5 QFN-6 (3x3mm)
ABSOLUTE MAXIMUM RATINGS
(1)
V
IN
, V
SW
........................................ -0.3V to +40V
V
RS
................................................. V
IN
-5V to V
IN
All Other Pins .............................. -0.3V to +6.3V
Continuous Power Dissipation (T
A
= +25°C)
(2)
TSOT23-5 .................................................. 1.1W
QFN-6 (3x3mm) ......................................... 2.5W
Junction Temperature .............................. 150°C
Lead Temperature ................................... 260°C
Storage Temperature ............... -65°C to +150°C
Recommended Operating Conditions
(3)
Supply Voltage V
IN
............................. 6V to 36V
Operating Junction Temp. (T
J
). ... -40°C to +125°C
Thermal Resistance
(4)
θ
JA
θ
JC
TSOT23-5 ............................ 110 ..... 55 ... °C/W
QFN-6 (3x3mm) .................... 50 ...... 14 ... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation a
t
any ambient temperature is calculated by P
D
(MAX)=(T
J
(MAX)-
T
A
)/ θ
JA
. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) The device is not guaranteed to function outside of its
operation conditions.
4) Measured on JESD51-7 4-layer board.
MP24895 – STEP-DOWN WHITE-LED DRIVER WITH 6-36V INPUT VOLTAGE
MP24895 Rev. 1.0 www.MonolithicPower.com 3
8/6/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
V
IN
= 24V, T
J
=-40°C to 125°C
(6)
, unless otherwise noted.
Paramete
r
Symbol Condition Min Typ Max Units
Input Voltage V
IN
6 36 V
IN Under-Voltage Lockout V
IN UVLO
V
IN
Rising 4.7 5.3 5.9 V
Under-Voltage Lockout Hysteresis 700 mV
Shutdown Supply Current I
SD
170 250 µA
Quiescent Supply Current I
Q
No Switching 0.7 1.1 mA
Feedback Reference Voltage
(with respect to V
IN
)
V
IN
-V
RS
ForTj=25°C,
V
EN/DIM
=1.28V
94 100 106 mV
For Tj=-40°C to 125°C
V
EN
/
DIM
=1.28V
92 108 mV
EN/DIM Enable High Voltage V
EN HIGH
V
EN
Rising 0.19 0.25 0.31 V
EN/DIM Enable Hysteresis V
EN HYS
50 90 mV
EN/DIM Pull-Up Resistor R
EN
V
EN
/
DIM
=0.3V 45 kΩ
Internal Reference Voltage V
REF
1.24 1.28 1.32 V
Switch On Resistance R
DS ON
0.2 0.4 Ω
Minimum On Time
(5)
t
ON MIN
100 ns
Minimum Off Time
(5)
t
OFF_MIN
80 ns
Thermal Shutdown Temperature
(5)
T
OTP
150 °C
Thermal Shutdown Hysteresis
(5)
T
OTP HYS
15 °C
Notes:
5) Guaranteed by design
6) Not test in production, guaranteed by characterization. Typical value represent the most likely parametric norm at +25°C
P1-P3P4-P6P7-P9P10-P12P13-P13

MP24895GQ-P

Mfr. #:
Buy MP24895GQ-P
Manufacturer:
Monolithic Power Systems (MPS)
Description:
LED Lighting Drivers 36V 1A StepDwn LED driver wit100mV curr
Lifecycle:
New from this manufacturer.
Delivery:
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