IRS21571DSPBF International Rectifier, IRS21571DSPBF Datasheet

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IRS21571DSPBF

Manufacturer Part Number
IRS21571DSPBF
Description
IC BALLAST CTRL 600V 16-SOIC
Manufacturer
International Rectifier
Type
Ballast Controllerr
Datasheet

Specifications of IRS21571DSPBF

Frequency
43.7 ~ 48.3 kHz
Current - Supply
10mA
Current - Output
180mA
Voltage - Supply
11.5 V ~ 15.6 V
Operating Temperature
-40°C ~ 125°C
Package / Case
16-SOIC (0.154", 3.90mm Width)
Package
16-lead SOIC Narrow
Circuit
Fluorescent Ballast IC
Offset Voltage (v)
600
Output Source Current Min (ma)
180
Output Sink Current Min (ma)
260
Pbf
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Typical Connection Diagram
www.irf.com
Typical Application
IC Features
Programmable preheat time and frequency
Programmable ignition ramp
Protection from failure-to-strike
Lamp filament sensing and protection
Protection from operation below resonance -
0.2V CS threshold sync’d to falling edge on LO
Protection from low-line condition
Automatic restart for lamp exchange
Thermal overload protection
Programmable deadtime
Integrated 600V level-shifting gate driver
Integrated bootstrap MOSFET
Integrated 15.6V zener clamp diode on VCC
Low micro-power start-up
Latch immunity and ESD on all pins
Fluorescent lamp ballast
+ Rectified AC Line
V
BUS
+ V
return
BUS
C
PH
R
C
T
T
R
C
R1
C1
OC
RAMP
R
R
R
RUN
PH
DT
R2
VDC
CPH
RPH
RUN
RT
CT
DT
OC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VCC
COM
HO
VS
VB
CS
SD
LO
FULLY INTEGRATED BALLAST CONTROL IC
Product Summary
Package Options
R
Topology
V
I
Oscillator Frequency
Start-up current (typical)
R
C
C
GHS
O+
Supply
R3
BS
VCC
OFFSET
C2
& I
R4
R
GLS
O-
R
CS
(typical)
16-Lead SOIC (Narrow Body)
R5
D1
C
C
D2
BLOCK
SNUBBER
L
RES
© 2008 International Rectifier
180 mA & 260 mA
C
RES
IRS21571D
Half-Bridge
150 µA
+/- 5%
600 V
April 21st, 2008

Related parts for IRS21571DSPBF

IRS21571DSPBF Summary of contents

Page 1

... Start-up current (typical) Package Options Supply VDC GHS CPH RPH RAMP PH RT VCC RUN VCC RUN COM GLS IRS21571D Half-Bridge 600 V (typical) 180 mA & 260 mA O- +/- 5% 150 µA 16-Lead SOIC (Narrow Body BLOCK RES C SNUBBER RES © 2008 International Rectifier April 21st, 2008 ...

Page 2

... Absolute Maximum Ratings Recommended Operating Conditions Electrical Characteristics Functional Block Diagram Input/Output Pin Equivalent Circuit Diagrams Lead Definitions Lead Assignments State Diagram Application Information and Additional Details Package Details Part Marking Information Ordering Information Change History www.irf.com 2 © 2008 International Rectifier IRS21571D Page ...

Page 3

... The heart of this control variable frequency, 50% duty cycle oscillator with externally programmable deadtime. An integrated bootstrap MOSFET is also included to supply the high-side gate drive circuitry. The IRS21571D is available in 16 pin narrow body SOIC package. www.irf.com IRS21571D © 2008 International Rectifier ...

Page 4

... Human Body Model IC Latch-Up Test RoHS Compliant † Qualification standards can be found at International Rectifier’s web site †† Higher qualification ratings may be available should the user have such requirements. Please contact your International Rectifier sales representative for further information. ††† Higher MSL ratings may be available for the specific package types listed here. Please contact your International Rectifier sales representative for further information ...

Page 5

... Electrical Characteristics section. CLAMP IRS21571D Min. Max. Units -0.3 625 -500 500 -0.3 5 -0 -50 50 V/ns --- 1.60 W --- 1.25 W --- 75 ºC/W --- 100 ºC/W -55 150 -55 150 ºC --- 300 and COM which has a nominal CC © 2008 International Rectifier ...

Page 6

... RT resistor. During the run mode, the total RT pin current consists of the RUN pin current plus the the current due to the RT resistor. www.irf.com Definition 6 IRS21571D Min. Max. Units BSUV+ CLAMP -3.0 600 CLAMP CCUV+ † 220 --- pF --- kΩ 1.0 --- 50 kΩ -500 -50 µA 0 450 µA 0 450 µ -40 125 ºC © 2008 International Rectifier ...

Page 7

... HO V rising from 0V BS 9.0 --- V V falling from 14V BS 8.0 --- --- 50 µ 48.3 kHz 50 % 4.0 --- V 2.0 --- --- mV Tj > 2.0 --- 5V 2V --- Tj > 2.3 --- µsec 2.3 --- µsec 0.98 µA CPH 4.0 4.3 V 5 --- mV Tj > © 2008 International Rectifier = 0V, CPH - 600V ...

Page 8

... V 0.2 0.26 Delay from 250 400 nsec 5.2 5.6 V 3.1 3.4 V † ºC --- 160 --- 100 100 BIAS 120 220 nsec 50 220 --- 180 --- mA --- 260 --- > 175ºC), the IC is latched off. In order to reset j supply to the IC must CCUV- © 2008 International Rectifier = 0V, CPH = 5V ...

Page 9

... RT 4 2.0V RUN 50uA OC 8 10.4V www.irf.com VCC S Q BOOTSTRAP MOSFET R Q CONTROL 4. 2. OVER- TEMP UNDER- VOLTAGE DETECT DETECT 9 IRS21571D VB 14 PULSE LEVEL HO 16 FILTER & SHIFT LATCH VS 15 VCC 15.6V COM 0. CLK Q R 10. 2.0V 10.4V © 2008 International Rectifier ...

Page 10

... Input/Output Pin Equivalent Circuit www.irf.com Diagrams 10 IRS21571D © 2008 International Rectifier ...

Page 11

... Shutdown Input CS Current Sensing Input LO Low-Side Gate Driver Output COM IC Power & Signal Ground VCC Logic & Low-side Gate Driver Floating Supply VB High-Side Gate Driver Floating Supply VS High Voltage Floating Return HO High-Side Gate Driver Outpur www.irf.com 11 © 2008 International Rectifier IRS21571D ...

Page 12

... Lead Assignments www.irf.com IRS21571D © 2008 International Rectifier ...

Page 13

... IGNITION RAMP) RUN Mode f Ramps to f MIN RUN CPH Charges to 10V Clamp RPH = Open Circuit RUN = 0V CS- Threshold Enabled 13 IRS21571D VCC < 10.5V (VCC Fault or Power Down) or VDC < 3.0V (dc Bus/ac Line Fault or Power Down > 2.2V (Lamp Fault or Lamp Removal) © 2008 International Rectifier ...

Page 14

... Figure 1: Supply bypassing PCB layout example decoupling capacitor should be connected directly to the IC COM pin, and not CC IR21571 pin 1 C VCC timing components V return BUS Figure 2: COM pin connection PCB layout example 14 IRS21571D (surface mount) C (through hole) VCC R (through hole) CS © 2008 International Rectifier CC ...

Page 15

... V RUN Ignition Preheat mode Run mode Ramp mode Figure 3: IRS21571D Control sequence > f > f > This control sequence is recommended for lamp start ph run ign is a sawtooth, where the rising portion of the ramp is determined by the T 15 IRS21571D t . The DT © 2008 International Rectifier ...

Page 16

... RDT (Kohms) Figure 5: Deadtime versus R pin current and the IRS21571D CT LO HO-VS resistor, given a certain range 220 470 100 DT capacitor charging current, the value of T pin can also be used as a feedback point for T © 2008 International Rectifier capacitor T ...

Page 17

... CPH 1.0uA 2 7.6V 5.1V 4.0V 4.0V RPH 3 2. 2.0V R RUN RUN and R . This frequency, along with the Preheat Time, is normally chosen IRS21571D pin, as shown in Figure 6. The voltage at the UNDER- VOLTAGE DETECT PH © 2008 International Rectifier and pin T and ...

Page 18

... The Run Mode operating frequency is therefore a function of the T , and this means that the operating power of the lamp can be programmed by T capacitor charging current) and the operating frequency IRS21571D , an internal 1μA current source, and PH resistance (i.e., the T © 2008 International Rectifier RUN ...

Page 19

... Q D CLK OVER- 50uA UNDER- TEMP 8 VOLTAGE DETECT DETECT 7.6V 19 IRS21571D 250 200 CT=220pF, RDT=5.6K CT=470pF, RDT=2.7K CT=1nF, RDT=1.2K 150 100 ohms) Figure 9: f versus effective R OSC (t = 1.0 usec) DEAD 0. 7. 2.0V 7.6V C2 from lower lamp cathode © 2008 International Rectifier ...

Page 20

... A example circuit for a single lamp is shown in Figure 12. www.irf.com 5 VDC CPH HO-VS Restart RUN mode Low VDC Figure 11: VDC pin fault and auto restart 20 IRS21571D © 2008 International Rectifier ...

Page 21

... BLOCK CPH RPH Supply D BOOT RT VCC VCC RUN COM GLS return BUS Figure 12: Lamp presence detection circuit connection (shaded area CPH HO-VS RUN mode SD mode Figure 13: SD pin fault and auto restart 21 IRS21571D L RES SNUBBER C RES Restart © 2008 International Rectifier ...

Page 22

... Figure 17 shows an under-current condition. www.irf.com rectifie d +V BUS AC line VDC GHS CPH BOOT R RPH VB SUPPLY VCC BOOT 4 13 RUN COM C VCC GLS return BUS . The value of the resistor CS 50E - 6 ⋅ 50E - IRS21571D Bridge output C SNUBBER D2 is determined by the following formula: OC © 2008 International Rectifier ...

Page 23

... Figure 15: Lamp failure to strike Figure 16: Hard switching condition 23 IRS21571D © 2008 International Rectifier ...

Page 24

... SD pin to go low again, reinitiating the startup sequence. The fault latch can also be reset by the undervoltage lockout signal, if VCC falls below the lower undervoltage threshold. www.irf.com Figure 17: Operation below resonance Figure 18: Auto restart for lamp replacement 24 IRS21571D CPH VS © 2008 International Rectifier ...

Page 25

... Package Details: SO16N www.irf.com 25 © 2008 International Rectifier IRS21571D ...

Page 26

... Max 0.311 0.318 0.153 0.161 0.618 0.641 0.291 0.299 0.252 0.260 0.402 0.409 0.059 n/a 0.059 0.062 D A Imperial Min Max 12.976 13.001 0.824 0.844 0.503 0.519 0.767 0.096 3.858 4.015 n/a 0.881 0.728 0.830 0.645 0.724 © 2008 International Rectifier ...

Page 27

... Part Marking Information www.irf.com 27 © 2008 International Rectifier IRS21571D ...

Page 28

... For technical support, please contact IR’s Technical Assistance Center www.irf.com Standard Pack Form SOIC16N Tube/Bulk SOIC16N Tape and Reel http://www.irf.com/technical-info/ WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 28 IRS21571D Complete Part Number Quantity 48 IRS21571DSPBF 2500 IRS21571DSTRPBF © 2008 International Rectifier ...

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