MAX16835ATE+
更新时间：2024-09-18 19:11:35
品牌：MAXIM
描述：LED Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WHHB, TQFN-16
概述
规格参数
数据手册MAX16835ATE+ 概述
LED Driver, 1-Segment, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220WHHB, TQFN-16 LED驱动器 显示驱动器
MAX16835ATE+ 规格参数
| 是否无铅： | 不含铅 | 是否Rohs认证： | 符合 |
| 生命周期： | Active | 零件包装代码： | QFN |
| 包装说明： | HVQCCN, LCC16,.2SQ,32 | 针数： | 16 |
| Reach Compliance Code： | compliant | ECCN代码： | EAR99 |
| HTS代码： | 8542.39.00.01 | Factory Lead Time： | 6 weeks |
| 风险等级： | 2.24 | 数据输入模式： | SERIAL |
| 接口集成电路类型： | LED DISPLAY DRIVER | JESD-30 代码： | S-XQCC-N16 |
| 长度： | 5 mm | 湿度敏感等级： | 1 |
| 复用显示功能： | NO | 功能数量： | 1 |
| 区段数： | 1 | 端子数量： | 16 |
| 最高工作温度： | 125 °C | 最低工作温度： | -40 °C |
| 封装主体材料： | UNSPECIFIED | 封装代码： | HVQCCN |
| 封装等效代码： | LCC16,.2SQ,32 | 封装形状： | SQUARE |
| 封装形式： | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | 峰值回流温度（摄氏度）： | NOT SPECIFIED |
| 电源： | 12 V | 认证状态： | Not Qualified |
| 座面最大高度： | 0.8 mm | 子类别： | Display Drivers |
| 最大供电电压： | 40 V | 最小供电电压： | 6.5 V |
| 标称供电电压： | 12 V | 表面贴装： | YES |
| 技术： | BICMOS | 温度等级： | AUTOMOTIVE |
| 端子形式： | NO LEAD | 端子节距： | 0.8 mm |
| 端子位置： | QUAD | 处于峰值回流温度下的最长时间： | NOT SPECIFIED |
| 宽度： | 5 mm | Base Number Matches： | 1 |
MAX16835ATE+ 数据手册
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PDF下载MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
General Description
Features
o +6.5V to +40V Operating Range
o Adjustable LED Current (35mA to 350mA)
3.5ꢀ Output Current Aꢁꢁuraꢁc
The MAX16835 current regulator operates from a 6.5V
to 40V input voltage range and delivers up to a total of
350mA to one or more strings of high-brightness LEDs
(HB LEDs). The output current of the MAX16835 is
adjusted by using an external current-sense resistor in
series with the LEDs. An enable input allows wide-
range “pulsed” dimming. Wave-shaping circuitry
reduces EMI. The differential current-sense input
increases noise immunity. The MAX16835 is well suited
for applications requiring high-voltage input and is able
to withstand automotive load-dump events up to 40V.
An on-board pass element minimizes external compo-
nents while providing 3.5ꢀ output current accuracy.
Additional features include a 5V regulated output and
short-circuit and thermal protection.
o
o Integrated Pass Element with Low-Dropout
Voltage (0.55V tcp)
o Output Short-Cirꢁuit Proteꢁtion
o +5V Regulated Output with 4mA Sourꢁe
Capabilitc
o Thermal Shutdown
o Differential LED Current Sense
o High-Voltage Enable Pin for Dimming Interfaꢁe
o Low Shutdown Supplc Current (35µA tcp)
o Low 200mV Current-Sense Referenꢁe Reduꢁes
Power Losses
The MAX16835 is available in a thermally enhanced,
5mm x 5mm, 16-pin TQFN package and is specified
over the automotive -40°C to +125°C temperature range.
o Wave-Shaped Edges Reduꢁe Radiated EMI During
PWM Dimming
o Available in Small, Thermallc Enhanꢁed,
Applications
5mm x 5mm, 16-Pin TQFN Paꢁkage
o -40°C to +125°C Operating Temperature Range
Automotive Interior: Map, Courtesy, and Cluster
Lighting
Automotive Exterior: Tail Lights and CHMSL
Warning Lights for Emergency Vehicles
Navigation and Marine Indicators
General Illumination
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX16835ATE+
MAX16835ATE/V+
-40°C to +125°C 16 TQFN-EP*
-40°C to +125°C 16 TQFN-EP*
Signage, Gasoline Canopies, Beacons
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
/V denotes an automotive qualified part.
Pin Configuration
Simplified Diagram
TOP VIEW
+6.5V TO +40V
12
11
10
9
IN
OUT
V5
0.1µF
+5V REG
N.C.
8
7
6
5
N.C. 13
N.C. 14
LEDs
0.1µF
MAX16835
N.C.
N.C.
N.C.
MAX16835
EN
15
16
CS+
CS-
R
SENSE
OUT
+
PWM DIMMING
EN
1
2
3
4
GND
TQFN
For priꢁing, deliverc, and ordering information, please ꢁontaꢁt Maxim Direꢁt
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.ꢁom.
19-4028; Rev 2; 10/12
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
ABSOLUTE MAXIMUM RATINGS
IN to GND...............................................................-0.3V to +45V
Operating Junction Temperature Range...........-40°C to +125°C
OUT, EN to GND..........................................-0.3V to (V + 0.3V)
CS+, CS-, and V5 to GND........................................-0.3V to +6V
OUT Short Circuited to GND Duration
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
IN
(at V = +16V) ........................................................60 minutes
IN
Maximum Current into Any Pin (except IN and OUT)......... 20mA
Continuous Power Dissipation (T = +70°C)
A
16-Pin TQFN 5mm x 5mm
(derate 33.3mW/°C above +70°C)...........................2666.7mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
Junction-to-Ambient Thermal Resistance (θ ) ...............30°C/W
JA
Junction-to-Case Thermal Resistance (θ ).........................2°C/W
JC
Note 1: Package thermal resistances obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, see www.maximintegrated.ꢁom/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V = V = +12V, C = 0.1µF to GND, I = 0, CS- = GND, connect R
= 0.58Ω between CS+ and CS-. T = -40°C to
A
V5
IN
EN
V5
SENSE
+125°C, unless otherwise noted. Typical values are at T = +25°C.) (Notes 2 and 3)
A
PARAMETER
Supply Voltage Range
Ground Current
SYMBOL
CONDITIONS
MIN
TYP
MAX
40.0
3
UNITS
V
V
(Note 2)
6.5
IN
I
G
I
= 350mA
1.28
35
mA
µA
LOAD
Shutdown Supply Current
Guaranteed Output Current
Output Current Accuracy
I
V
≤ 0.6V
EN
70
SHDN
I
R
= 0.55Ω
350
mA
ꢀ
OUT
SENSE
35mA < I
< 350mA
3.5
OUT
I
= 350mA (current pulsed),
OUT
0.55
1.2
1.5
V
V
12V < V < 40V
IN
Dropout Voltage (Note 4)
∆VDO
I
= 350mA (current pulsed),
OUT
0.55
6.5V < V < 40V
IN
Current rising
Current falling
7.8
7.8
Output Current Slew Rate
mA/µs
mA
Short-Circuit Current
LOGIC INPUT
EN Input Current
EN Input Voltage High
EN Input Voltage Low
Turn-On Time
V
= 12V, V
= 0V
CS+
400
500
650
-0.2
IN
I
-2.5
2.8
-1.0
110
µA
V
EN
V
IH
V
0.6
V
IL
t
V
rising edge to 90ꢀ of OUT
350
µs
ON
EN
CURRENT SENSE
Regulated R
Voltage
V
V
V
V
= V
- V
CS-
193
-50
200
2.7
207
7.0
mV
µA
µA
SENSE
SENSE
SENSE
CS+
Input Current (CS+)
Input Current (CS-)
= 220mV
= 220mV
CS+
CS+
-17.2
Maxim Integrated
2
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
ELECTRICAL CHARACTERISTICS (ꢁontinued)
(V = V = +12V, C = 0.1µF to GND, I = 0, CS- = GND, connect R
= 0.58Ω between CS+ and CS-. T = -40°C to
A
V5
IN
EN
V5
SENSE
+125°C, unless otherwise noted. Typical values are at T = +25°C.) (Notes 2 and 3)
A
PARAMETER
THERMAL OVERLOAD
Thermal-Shutdown Temperature
Thermal-Shutdown Hysteresis
+5V REGULATOR
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
+159
24
°C
°C
Output Voltage
V
4.85
5.00
12
5.20
20
V
V5
Output Voltage Load Regulation
V5 Short-Circuit Current
∆V5
0 < I
< 4mA (Note 5)
mV/mA
mA
LOAD
V5 = 0V (Note 6)
15
Note 2: Resistors were added from OUT to CS+ to aid with the power dissipation during testing.
Note 3: All devices 100ꢀ production tested at T = +25°C. Limits over the operating temperature range are guaranteed by design.
A
Note 4: Dropout is measured as follows:
Connect R = 27Ω from OUT to CS+. Connect R
= 0.58Ω from CS+ to CS-. Set V = +12V (record V
as V
).
OUT1
O
SENSE
IN
.
OUT
Reduce V until V
= 0.97 x V
(record as V
and V
). ∆V
= V
- V
IN
OUT
OUT1
IN2
OUT2
DO
IN2
OUT2
Note 5: Current regulation varies with V5 load (see the Typical Operating Characteristics).
Note 6: Thermal shutdown does not function if the output of the 5V reference is shorted to ground.
Typical Operating Characteristics
(V = V = +12V, T = +25°C, unless otherwise noted.)
IN
EN
A
OUTPUT CURRENT
vs. TEMPERATURE
(V
- V
)
OUTPUT CURRENT
vs. INPUT VOLTAGE
CS-
CS+
vs. OUTPUT CURRENT
450
0.208
0.206
0.204
0.202
0.200
0.198
400
350
300
250
200
150
100
50
I
= 350mA
LOAD
400
350
300
250
200
150
100
50
I
= 200mA
LOAD
I
= 100mA
LOAD
I
= 35mA
LOAD
0
0
-40 -25 -10
5
20 35 50 65 80 95 110 125
20 50 80 110 140 170 200 230 260 290 320 350
OUTPUT CURRENT (mA)
0
5
10 15 20 25 30 35 40
INPUT VOLTAGE (V)
TEMPERATURE (°C)
Maxim Integrated
3
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
Typical Operating Characteristics (continued)
(V = V = +12V, T = +25°C, unless otherwise noted.)
IN
EN
A
DROPOUT VOLTAGE
vs. TEMPERATURE
+5V REGULATOR OUTPUT
vs. TEMPERATURE
SHUTDOWN CURRENT
vs. TEMPERATURE
100
90
80
70
60
50
40
30
20
10
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
5.2
5.1
V
= 40V
IN
I
= 350mA
LOAD
I
= 1mA
V5
NO LOAD
V
= 20V
IN
5.0
4.9
4.8
V
= 12V
IN
V
= 6.5V
IN
I
= 5mA
V5
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
(V
CS+
- V ) vs. I
CS- V5
+5V REGULATOR OUTPUT vs. V
IN
200Hz DIMMED OPERATION
MAX16835 toc09
0.206
0.204
0.202
0.200
0.198
0.196
5.2
5.1
5.0
4.9
4.8
V
IN
5V/div
I
= 5mA
V5
NO LOAD
0V
I
LOAD
I
= 350mA
LOAD
200mA/div
0
I
= 5mA
25
I
V
= 350mA, V = V ,
LOAD IN EN
IN
V5
PULSED AT 200Hz (50% DUTY CYCLE)
1ms/div
0
1
2
3
4
5
5
10
15
20
V
30
35
40
I
(mA)
(V)
IN
V5
200Hz DIMMED OPERATION EXPANDED
200Hz DIMMED OPERATION EXPANDED
200Hz DIMMED OPERATION
MAX16835 toc12
MAX16835 toc10
MAX16835 toc11
V
V
IN
5V/div
IN
EN
5V/div
10V/div
0V
0V
0V
I
V
V
= 350mA
I
V
V
= 350mA
LOAD
IN
IN
LOAD
IN
IN
I
LOAD
= V
EN
= V
EN
I
LED
200mA/div
I
LED
200mA/div
PULSED AT 200Hz
PULSED AT 200Hz
200mA/div
(50% DUTY CYCLE)
(50% DUTY CYCLE)
0
0
0
I
= 350mA, V = 12V,
IN
LOAD
EN PULSED AT 200Hz (50% DUTY CYCLE)
20µs/div
4µs/div
1ms/div
Maxim Integrated
4
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
Pin Description
PIN
1, 16
NAME
OUT
IN
FUNCTION
Current-Regulated Output. Connect pin 1 to pin 16.
2, 3
Positive Input Supply. Bypass IN with a 0.1µF (min) capacitor to GND. Connect pin 2 to pin 3.
No Connection. Not internally connected.
4–8, 13, 14
N.C.
Positive Input of the Internal Differential Amplifier. Connect the current-sense resistor between CS+
and CS- to program the output current level.
9
CS+
CS-
Negative Input of the Internal Differential Amplifier. Connect the current-sense resistor between
CS- and CS+ to program the output current level.
10
11
12
15
V5
GND
EN
+5V Regulated Output. Connect a 0.1µF capacitor from V5 to GND.
Ground
Enable Input. Drive EN high to enable the output.
Exposed Pad. Connect to the ground plane for effective power dissipation. Do not use as the only
ground connection.
—
EP
Functional Diagram
V5
IN
REGULATOR
IN
EN
REFERENCE
GENERATOR
ENABLE
I
-REG
OUT
CS+
DIFFERENTIAL
SENSE
AMPLIFIER
MAX16835
CS-
THERMAL
SHUTDOWN
features thermal and output short-circuit protection.
The wide operating voltage range helps protect the
MAX16835 against large transients such as those
found in load-dump situations up to 40V.
Detailed Description
The MAX16835 is a high-current regulator capable of
providing up to a total of 350mA of current to one or
more strings of high-brightness LEDs. A wide operating
input voltage range of +6.5V to +40V makes the
MAX16835 ideal for automotive applications. A +5V
regulated output provides up to 4mA of current to
power external circuitry. In addition, the MAX16835
The MAX16835 uses a feedback loop to control the out-
put current. The differential voltage across the sense
resistor is compared to a fixed reference voltage, and
the error is amplified to serve as the drive to the internal
Maxim Integrated
5
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
power series pass device (see the Functional Diagram).
The regulation point is factory set at (V - V ) =
connected across R
nity and low-frequency noise rejection. The LED current
is given by the equation below:
provides ground-loop immu-
SENSE
CS+
CS-
200mV 3.5ꢀ. The regulated current is user defined by
the value of R
.
SENSE
I
= V
/R
LED
SENSE SENSE
The MAX16835 is a current controller internally opti-
mized for driving the impedance range expected from
one or more HB LEDs.
Input Voltage Considerations
For proper operation, the minimum input voltage must
always be:
+5V Regulator
The MAX16835 includes a fixed +5V output regulator
that delivers up to 4mA of load current for low-power
applications throughout the +6.5V to +40V input volt-
age range. Connect a 0.1µF compensation capacitor
from V5 to ground. Shorting V5 to ground disables the
thermal shutdown. When EN is low, V5 is off.
V
≥ V
+ V
+ ∆V
IN(MIN)
SENSE(MAX)
FT(MAX DO(MAX)
where V
is the total forward voltage of all series-
FT(MAX)
connected LEDs. The minimum operating voltage of the
device is +6.5V. The device operates below +6.5V;
However, the output current may not meet the full regu-
lation specification.
Low-Frequency PWM
at the Output
Thermal Protection
The MAX16835 enters a thermal-shutdown mode in the
event of overheating. This typically occurs in overload or
output short-circuit conditions. When the junction tem-
The MAX16835 provides pulsed or chopped current
dimming. Generally, HB LEDs are binned to match at
their full-rated current; however, LEDs from the same
bin exhibit poor matching at currents other than full-
rated current. To achieve uniformity, HB LED manufac-
turers recommend PWM pulsing of the LED current at
their full-rated value. There are two methods for pro-
ducing a PWM output. One method is by pulsing the
enable input (EN) while having a constant voltage at IN.
The other method is to connect EN to IN and pulse both
EN and IN. Both methods generate a regulated-ampli-
tude PWM current (variable duty cycle) that can pro-
vide control over the LED brightness (see Figures 1
and 2).
perature exceeds T = +159°C (typ), the internal ther-
J
mal-protection circuitry turns off the series pass device.
The MAX16835 recovers from thermal-shutdown mode
once the junction temperature drops by 24°C (typ). The
part therefore protects itself by thermally cycling in the
event of a short-circuit or overload condition. Shorting V5
to ground disables the thermal shutdown.
Applications Information
Programming the LED Current
The MAX16835 uses a sense resistor across CS+ and
CS- to set the LED current. The differential sense amplifier
V
EN
16
15
14
13
16
15
14
13
OUT
EN
N.C.
N.C.
OUT
EN
N.C.
N.C.
I
I
LED
LED
GND 12
OUT
IN
GND 12
1
2
3
4
OUT
IN
1
2
3
4
D1
C2
D1
C2
V
V
IN
IN
11
10
9
11
V5
V5
CS-
CS+
MAX16835
MAX16835
C1
C1
R
R
SENSE
SENSE
IN
IN
10
9
CS-
CS+
N.C.
N.C.
N.C.
5
N.C.
6
N.C.
7
N.C.
8
N.C.
5
N.C.
6
N.C.
7
N.C.
8
Figure 1. Pulse Application with V at a Constant Voltage
IN
Figure 2. Pulse Application with EN Connected to V
IN
Maxim Integrated
6
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
Typical Operating Circuit
Chip Information
PROCESS: BiCMOS
16
15
14
13
OUT
EN
N.C.
N.C.
GND 12
1
2
3
4
OUT
IN
Package Information
D1
C2
For the latest package outline information and land patterns (foot-
prints), go to www.maximintegrated.ꢁom/paꢁkages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
V
IN
11
10
9
V5
CS-
CS+
MAX16835
C1
R
SENS
IN
N.C.
LAND
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE NO.
21-0140
N.C.
5
N.C.
6
N.C.
7
N.C.
8
PATTERN NO.
90-0073
16 TQFN
T1655+3
Maxim Integrated
7
MAX16835
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
1
2
2/08
5/08
Initial release
—
1, 2, 8, 9
1
Updated Ordering Information, Electrical Characteristics, and Package
Information.
10/12
Added automotive qualified part to Ordering Information
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
8
________________________________Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2012 Maxim Integrated Products, Inc.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX16835ATE+ CAD模型
引脚图
封装焊盘图
MAX16835ATE+ 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
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| MAX16836 | MAXIM | High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator | 获取价格 |
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| MAX16836ATE+ | MAXIM | High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator | 获取价格 |
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| MAX16838 | ADI | 集成2通道、高亮度LED驱动器，具有高压boost和SEPIC控制器 | 获取价格 |
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| MAX16838ATP | MAXIM | Integrated, 2-Channel, High-Brightness LED Driver with High-Voltage Boost and SEPIC Controller | 获取价格 |
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| MAX16838ATP+ | MAXIM | Integrated, 2-Channel, High-Brightness LED Driver with High-Voltage Boost and SEPIC Controller | 获取价格 |
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