ISL78010_11 INTERSIL [Intersil Corporation], ISL78010_11 Datasheet

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ISL78010_11

Manufacturer Part Number
ISL78010_11
Description
Automotive Grade TFT-LCD Power Supply
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet
Automotive Grade TFT-LCD Power Supply
The ISL78010 is a multiple output regulator for use in all
TFT-LCD automotive applications. It features a single boost
converter with an integrated 2A FET, two positive LDOs for
V
V
to operate in either P-mode for optimal transient response or
PI-mode for improved load regulation.
The ISL78010 includes fault protection for all four channels.
Once a fault is detected on either the V
channels, the device is latched off until the input supply or
EN is cycled. If a fault is detected on the V
the device is latched off until the input supply is cycled. The
V
The ISL78010 also includes an integrated start-up sequence
for V
V
external transistor. The timing of the start-up sequence is set
using an external capacitor.
The ISL78010 comes in a 32 Ld 5x5 TQFP package and is
specified for operation over a -40°C to +105°C temperature
range. It is both AEC-Q100 rated and fully TS16949
compliant.
Ordering Information
ISL78010ANZ
ISL78010EVAL1Z
ON
OFF
LOGIC
BOOST
1. Add “-T*” suffix for tape and reel. Please refer to
2. These Intersil Pb-free plastic packaged products employ special
3. For Moisture Sensitivity Level (MSL), please see device
PART NUMBER
(Notes 1, 2, 3)
details on reel specifications.
Pb-free material sets, molding compounds/die attach materials,
and 100% matte tin plate plus anneal (e3 termination finish,
which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations). Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020.
information page for ISL78010. For more information on MSL
please see techbrief TB363.
LOGIC
and V
generation. The boost converter can be programmed
, and V
channel is not affected by the EN function.
LOGIC
, V
BOOST
ON
generation, and a single negative LDO for
. The latter sequence requires a single
78010 ANZ
Evaluation Board
, V
MARKING
OFF
PART
, then V
1
32 Ld 5x5 TQFP
ON
Data Sheet
PACKAGE
(Pb-free)
BOOST
or for V
LOGIC
, V
LOGIC
TB347
ON
channel,
Q32.5x5
or V
DWG. #
, V
PKG.
for
OFF
OFF
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2007, 2011. All Rights Reserved
,
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
Features
• 2A current FET
• 3V to 5V input
• Up to 20V boost output
• 1% regulation on boost output
• V
• Programmable sequence delay
• Fully fault protected
• Thermal shutdown
• Internal soft-start
• 32 Ld 5x5 TQFP packages
• AEC-Q100 Tested
• TS16949 Compliant
• Pb-free (RoHS compliant)
Applications
• All Automotive LCD Displays
Pinout
V
LOGIC
LOGIC
DELB
DRVP
NC
NC
NC
NC
NC
LX
All other trademarks mentioned are the property of their respective owners.
-V
-V
May 3, 2011
BOOST
OFF
-V
1
2
3
4
5
6
7
8
BOOST
9
-V
32 31 30 29 28 27 26 25
10
OFF
(32 LD 5X5 TQFP)
11
TOP VIEW
-V
-V
ISL78010
12
ON
ON
13
or
sequence control
14
15
16
24
23
22
21
20
19
18
17
ISL78010
FN6501.1
VREF
NC
PGND
PGND
PGND
PGND
NC
FBN

Related parts for ISL78010_11

ISL78010_11 Summary of contents

Page 1

Data Sheet Automotive Grade TFT-LCD Power Supply The ISL78010 is a multiple output regulator for use in all TFT-LCD automotive applications. It features a single boost converter with an integrated 2A FET, two positive LDOs for V and V generation, ...

Page 2

Absolute Maximum Ratings ( ...

Page 3

Electrical Specifications +105°C temperature range, unless otherwise specified. Boldface limits apply over the operating temperature range, -40°C to +105°C. (Continued) PARAMETER DESCRIPTION V CINT Pl Mode Select Threshold CINT_T V LDO ON V FBP Regulation ...

Page 4

Electrical Specifications +105°C temperature range, unless otherwise specified. Boldface limits apply over the operating temperature range, -40°C to +105°C. (Continued) PARAMETER DESCRIPTION FAULT DETECTION t Fault Time Out FAULT OT Over-temperature Threshold I PG Pull-down ...

Page 5

Typical Performance Curves 100 15V VDD 100 200 I (mA) OUT FIGURE 1. V EFFICIENCY AT V BOOST 100 15V VDD 100 200 300 ...

Page 6

Typical Performance Curves 0 -0.5 -1.0 -1.5 -2 15V VDD -3.0 -3.5 A VDD -4.0 0 100 200 300 I (mA) OUT FIGURE 7. V LOAD REGULATION AT V BOOST 0.05 0.04 0.03 0.02 0.01 0 ...

Page 7

Typical Performance Curves 0 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 0 100 200 300 400 I (mA) OUT FIGURE 13. V LOAD REGULATION LOGIC V BOOST V LOGIC V OFF C = 220nF V DLY ON TIME (10ms/DIV) FIGURE 15. ...

Page 8

Applications Information The ISL78010 provides a highly integrated multiple output power solution for TFT-LCD automotive applications. The system consists of one high efficiency boost converter and three linear-regulator controllers (V ON with multiple protection functions. A block diagram is shown ...

Page 9

REFERENCE VREF GENERATOR SGND SLOPE COMPENSATION VOLTAGE FBB AMPLIFIER GM AMPLIFIER CINT UVLO EN COMPARATOR VDD SHUTDOWN AND PG START-UP CONTROL THERMAL SHUTDOWN CDLY SS + DRVN 0.2V - BUFFER FBN 0.4V UVLO COMPARATOR FIGURE 20. BLOCK DIAGRAM 9 ISL78010 ...

Page 10

SLOPE COMPENSATION IFB CURRENT AMPLIFIER IREF FBB GM AMPLIFIER REFERENCE GENERATOR CINT FIGURE 21. BLOCK DIAGRAM OF THE BOOST REGULATOR 10 ISL78010 SHUTDOWN AND STARTUP CONTROL CLOCK PWM LOGIC BUFFER IFB IREF VOLTAGE AMPLIFIER LX PGND FN6501.1 May 3, 2011 ...

Page 11

Table 2 gives typical values (margins are considered 10%, 3%, 20%, 10%, and 15 TABLE 2. TYPICAL AND (V) V ...

Page 12

Larger values may be possible if maximum INT 7 A load currents less than the current limit are used. To VDD ensure A stability, the IC should be operated at the VDD maximum desired current and ...

Page 13

For the ISL78010, the minimum drive current is as shown in Equation 10 min 8mA = DRVL The minimum base-emitter resistor, R calculated as shown in Equation 11 ⁄ ...

Page 14

Typical V voltage supported by the LOGIC ISL78010 ranges from +1. 0.2V. A fault DD comparator is also included for monitoring the output voltage. The ...

Page 15

Equation 17 gives the boundary between discontinuous and continuous boost operation. Continuous operation (LX switching every clock cycle) requires > × × I load – AVDD IN -------------------------------------------------------------------------------------- - × × 2 ...

Page 16

ISL78010 V CDLY REF V BOOST LOGIC V OFF t DEL1 DELAYED V BOOST V ON START-UP SEQUENCE TIMED BY C FIGURE 28. START-UP SEQUENCE DEL2 t DEL3 DLY ...

Page 17

excessively loaded, the current limit will BOOST prevent damage to the chip. While in current limit, the part acts like a current source, and the regulated output will drop. If the output drops below the fault threshold, ...

Page 18

Typical Application Diagram Q NODE 1nF 10µ 0.22µF 4.7µF R 10Ω 4.7µ 10kΩ 0.1µF REF 41 NODE ...

Page 19

Thin Plastic Quad Flatpack Packages (TQFP -D- - PIN 1 - -13 0.020 0.008 MIN o 0 MIN A2 A1 GAGE PLANE -13 0. 0.010 ...

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