IMP38HC45EPA | DigiCamel IC Datasheet

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IMP38C42EPA A1PROS | Alldatasheet

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© 2000 IMP , Inc. 408-432-9100/www.impweb.com 1 IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5 POWER MANAGEMENT Key Features N 384x Series Pinout with BiCMOS Technology N Zero Cross-Conduction Current by Design N 1MHz Operation N 65ns Maximum Current-Sense Delay N 120µA Maximum Start-Up Current N 1.5mA Maximum Operating Current N High Output Current Drive – 1.0A, IMP38HC4x – 0.5A, IMP38C4x N 20V Maximum Supply Voltage N 2.5V , 1%, Trimmed Error Amplifier Reference N Trimmed Oscillator Discharge Current N Pin-for-Pin Enhanced Replacements for Micrel MIC38C/HC4x and GMT38C4x/HC4xBlock Diagrams BiCMOS CurBiCMOS Currrent-Mode ent-Mode PWM ContrPWM Controllerollerss – – 1MHz Oper1MHz Operationation – – NNo Cro Crososss--Conduction CurConduction Currrentent – – 50ns Cur50ns Currrent-Sense Delaent-Sense Delayy The IMP38C4x and IMP38HC4x are fixed frequency, high performance, current-mode PWM controllers that are pin compatible with bipolar 384x devices but feature improvements resulting from IMP’s BiCMOS processing and circuit design. Notable among the improvements are zero cross-conduction/shoot-through current, reduced start-up and operating current, lower current-sense delay, higher frequency operation, full supply voltage swing at the output and a 1% trimmed voltage reference. IMP38C4x and IMP38HC4x output driver stage has zero cross-conduction current. A proprietary output state-machine monitors each output MOSFET and guarantees by design zero cross-conduction current. This is an industry first for 384x PWM devices. Under-voltage lockout (UVL) performance has been improved. When the power supply voltage is below the startup voltage, internal circuitry puts the output into a low impedance state. The output will sink 20mA and remain below 1.3V , well below the turn-on threshold voltage of the external MOSFET. Even when V DD drops to zero volts, the out pin will not rise above approximately 1.3V because the output UVLO circuit is EA OUT6 (10)RTCT 4 (7) COMP 1 (1) VDD VREF Reference 7 (12) 8 (14) FB 2 (3) VD (11) UVLO COMP PGND(8) Oscillator TQ S Q R1V R 2.5V Ref ( ) Pins Are 14-Pin Devices Only 38C/HC_01.eps GND 5 AGND (9) 3 (5) ISNS Connection Notes IMP38C4X, IMP38HC4X (8-Pin Devices) 50% Maximum Duty Cycle: IMP38C44, IMP38HC44, IMP38C45, IMP38HC45 96% Maximum Duty Cycle: IMP38C42, IMP38HC42, IMP38C43, IMP38HC43

IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5 2 408-432-9100/www.impweb.com © 2000 IMP , Inc. !S Pin Descriptions Pin Configuration IMP38C4x IMP38HC4x 1COMP 2FB 3ISNS 4RT/CT VREF VDD OUT GND 38C/HC_02.eps SO/MicroSO/DIP SO/DIP IMP38C4x IMP38HC4x 1COMP 2NC 3FB 4NC VREF NC VDD VD 5ISNS OUT 10 6NC AGND 9 7RT/CT PGND 8 38C/HC_03.eps rebmuNniP emaNn oitcnuF egakcaPniP-8e gakcaPniP-41 11 P MOC .rotarapmocMWPehtottupnidnareifilpmarorrEehtfotuptuO 23 B F. reifilpmArorrEehtfotupnignitrevnI 35S NSI. V1otdetimilyllanretnisitI.tupnirotarapmocesnestnerruC

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.egakcapnip-41rofdnuorg 60 1T UO nehwWOLdlehylevitcasinipTUO.tuptuorevirdelop-metot,rewop-hgiH V CC .dlohserhtOLVUehtwolebsi 72 1V DD .tupniegatlovylppuS 84 1V FER .tuptuoegatlovecnerefer-V5 9D NGA. egakcapnip-41rofnoitcennocdnuorggolanA 11V D .egakcapnip-41rofegatlovylppusrevirdtuptuO 31,6,4,2C N. noitcennoclanretnioN spe.10t_CH-C83 powered through the out pin. Leakage current from the external power MOSFETs will not force the PWM output to rise and turn the external MOSFETs on. Current-sense propagation delay time is 35ns typical, 65ns maxi- mum, representing an up to 75 percent reduction over other 38xx implementations. Output stage drive is 0.5A for IMP38C4x devices. The high-drive IMP38HC4x family is rated at 1.0A peak current drive. Like conventional 384x controllers, the IMP38C4x and IMP38HC4x controllers use the current-mode architecture for superior load regulation, pulse-by-pulse current limiting and out- put MOSFET protection. All versions operate up to 20 volts. For maximum application flexibility, start-up voltage ranges from 14.5V to 8.4V . Start-up current has been reduced to 120 µA maxi- mum and operating current has been reduced to 1.5mA maximum. The IMP38C4x/IMP38HC4x are available in 8-pin and 14-pin DIP and SO packages as well as the 8-pin MicroSO package. The 14- pin devices provide separate pins for the controller power supply and the output driver supply. This configuration maximizes application flexibility and performance. The 14-pin package can also dissipate more power. Devices in the compact 8-pin packages do not have separate output drive supply connections. The IMP38C4x and IMP38HC4x families operate over the –40 °C to +85°C temperature range.

Ordering Information

APE24C83PMIP IDcitsalP-8 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 5.0 DPE24C83PMIP IDcitsalP-41 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 5.0 ASE24C83PMIO S-8 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 5.0 DSE24C83PMIO S-41 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 5.0 AME24C83PMIO SorciM-8 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 5.0 D/24C83PMIE ID APE34C83PMIP IDcitsalP-8 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 5.0 DPE34C83PMIP IDcitsalP-41 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 5.0 ASE34C83PMIO S-8 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 5.0 DSE34C83PMIO S-41 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 5.0 AME34C83PMIO SorciM-8 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 5.0 D/34C83PMIE ID APE44C83PMIP IDcitsalP-8 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 5.0 DPE44C83PMIP IDcitsalP-41 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 5.0 ASE44C83PMIO S-8 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 5.0 DSE44C83PMIO S-41 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 5.0 AME44C83PMIO SorciM-8 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 5.0 D/44C83PMIE ID APE54C83PMIP IDcitsalP-8 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 5.0 DPE54C83PMIP IDcitsalP-41 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 5.0 ASE54C83PMIO S-8 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 5.0 DSE54C83PMIO S-41 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 5.0 AME54C83PMIO SorciM-8 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 5.0 D/54C83PMIE ID APE24CH83PMIP IDcitsalP-8 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 0.1 DPE24CH83PMIP IDcitsalP-41 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 0.1 ASE24CH83PMIO S-8 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 0.1 DSE24CH83PMIO S-41 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 0.1 AME24CH83PMIO SorciM-8 – 04 ° 58otC °CV 5.41V 0.9% 69V 5.2A 0.1 D/24CH83PMIE ID APE34CH83PMIP IDcitsalP-8 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 0.1 DPE34CH83PMIP IDcitsalP-41 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 0.1 ASE34CH83PMIO S-8 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 0.1 DSE34CH83PMIO S-41 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 0.1 AME34CH83PMIO SorciM-8 – 04 ° 58otC °CV 4.8V 6.7% 69V 5.2A 0.1 D/34CH83PMIE ID APE44CH83PMIP IDcitsalP-8 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 0.1 DPE44CH83PMIP IDcitsalP-41 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 0.1 ASE44CH83PMIO S-8 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 0.1 DSE44CH83PMIO S-41 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 0.1 AME44CH83PMIO SorciM-8 – 04 ° 58otC °CV 5.41V 0.9% 05V 5.2A 0.1 D/44CH83PMIE ID APE54CH83PMIP IDcitsalP-8 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 0.1 DPE54CH83PMIP IDcitsalP-41 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 0.1 ASE54CH83PMIO S-8 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 0.1 DSE54CH83PMIO S-41 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 0.1 AME54CH83PMIO SorciM-8 – 04 ° 58otC °CV 4.8V 6.7% 05V 5.2A 0.1 D/54CH83PMIE ID spe.20t_CH/C83 For SO and MicroSO packages, append “/T” to the ordering part number for tape and reel packaging.

IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5 4 408-432-9100/www.impweb.com © 2000 IMP , Inc. !S Absolute Maximum Ratings Lead Soldering Temperature (10 seconds) . . . +300 °C Parameter Symbol Conditions Min Typ Max Units Reference Output voltage V REF TA = +25°C, IO = 1mA 4.90 5.00 5.10 V Line Regulation 12V ≤ VCC ≤ 18V, IOUT = 5µA2 2 0 m V Load Regulation 1mA ≤ IO ≤ 20mA 1 25 mV Temperature Stability TC REF Note 1 0.2 mV/ °C Total Reference Variation Line, Load, Temperature, Note 1 4.82 5.18 V Output Noise Voltage V N 10Hz ≤ f ≤ 10kHz, TA = +25°C, Note 1 50 µV Long Term Stability T A = 125°C, 1000 Hours, Note 1 TBD mV Output Short Circuit I SC – 30 – 40 – 180 mA Oscillator Section Initial Accuracy f INIT TA = 25°C, Note 5 49 52 55 kHz Voltage Stability 12V ≤ VCC ≤ 18V 0.2 1.0 % Temperature Stability TC OSC Note 1 0.04 %/ °C Discharge Current V RT/CT = 2V 7.2 8.4 12.0 mA Amplitude peak-to-peak V OSC, P-P VRT/CT peak-to-peak 1.1 1.7 2.3 V Error Amplifier Section Input Voltage V IN VCOMP = 2.5V 2.45 2.50 2.55 V Input Bias Current I B VFB = 4.5V –11 µA Open Loop Gain A VOL 2V ≤ VO ≤ 4V, Note 1 65 90 dB Unity Gain Bandwidth UGBW Note1 0.7 1.0 MHz Power Supply Rejection Ratio PSRR V START ≤ VCC ≤ VCCMAX 60 dB Output Sink Current I OL VFB = 2.7V, Vcomp = 1.1V 2 6 mA Output Source Current I OH VFB = 2.3V, Vcomp = 5.0V – 0.5 – 1.0 mA VOUT High V OH VFB = 2.3V, RL = 15kΩ to ground 4.5 4.6 5.0 V VOUT Low V OL VFB = 2.7V, RL = 15kΩ to VREF 0.30 0.50 V Unless otherwise noted, VCC = 15V , RT = 10kΩ and CT = 3.3nF. Specifications are over the – 40°C to +85°C ambient temperature range. Bold/blue specifications indicate enhanced performance features.

Electrical Characteristics

Package Thermal Resistance Note: All voltages are referenced to GND. These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability.

IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5 © 2000 IMP , Inc. PWM Controllers 5 Parameter Symbol Conditions Min Typ Max Units Current Sense Gain A VOL Notes 1, 2 and 3 2.90 3.00 3.10 V/V Over Current Protection Threshold Vcomp = max, Note 2 0.9 0.98 1.1 V Power Supply Rejection Ratio PSRR V START ≤ VCC ≤ 18V 70 dB Input Bias Current I B – 0.1 – 2.0 µA Delay to Output T PD VFB = 0V, ISNS 0V to 2V, CL = 1nF 50 65 ns Output IMP38C4x ON Resistance, High R DS (ON) ISOURCE = 0.2A 20 Ω ON Resistance, Low I SINK = 0.2A 11 IMP38HC4x ON Resistance, High R DS (ON) ISOURCE = 0.2A 10 Ω ON Resistance, Low I SINK = 0.2A 5.5 Peak Drive Current HC devices 1.0 A H devices 0.5 IMP38C4x Rise Time T R TA = 25°C, CL = 1nF 40 70 ns IMP38C4x Fall Time T F TA = 25°C, CL = 1nF 30 50 ns IMP38HC4x Rise Time T R TA = 25°C, CL = 1nF 20 50 ns IMP38HC4x Fall Time T F TA = 25°C, CL = 1nF 15 40 ns Shoot-through Current 0m A Undervoltage Lockout Start Threshold IMP38C42/4, IMP38HC42/4 13.5 14.5 15.5 V IMP38C43/5, IMP38HC43/5 7.8 8.4 9.0 Minimum Operating Voltage IMP38C42/4, IMP38HC42/4 8 9 10 V IMP38C43/5, IMP38HC43/5 7.0 7.6 8.2 Pulse Width Modulator Maximum Duty Cycle IMP38C42/3, IMP38HC42/3, 94 96 % Maximum Duty Cycle IMP38C44/5, IMP38HC44/5 48 50 % Minimum Duty Cycle 0% Supply Current Start-Up Current V CC = 13V for IMP38C42/44, IMP38HC42/44 95 120 µA VCC = 7.5V for IMP38C43/45, IMP38HC43/45 Operating Current I CC VFB = VIS = 0 0.5 1.5 mA Unless otherwise noted, VCC = 15V , RT = 10kΩ and CT = 3.3nF. Specifications are over the – 40°C to +85°C ambient temperature range. Bold/blue specifications indicate enhanced performance features. Note 1. Guaranteed by design. Not 100% tested in production. Note 2. Measured at trip point of V FB = 0V . Note 3. Gain is defined as: sdlohserhTOLVU elcyCytuD V4.8tapu-tratS V6.7=muminiMgnitarepO V5.41tapu-tratS V0.9=muminiMgnitarepO %69ot%03 4CH/34C83PMI2 4CH/24C83PMI %05ot%05 4CH/54C83PMI4 4CH/44C83PMI spe.30t_CH/C83 Table 1. Startup and Operating Voltage Selection Guide Note 4. Adjust V CC above the start threshold before setting at 15V .

Application Information

OUT6 (10) VD (11) UVLO COMP PGND(8) TQ S Q R UVL Protection1V R ( ) Pins Are 14-Pin Devices Only 38C/HC_06.eps GND 5 AGND (9) 3 (5) ISNS Connection Notes IMP38C4X, IMP38HC4X (8-Pin Devices) 50% Maximum Duty Cycle: IMP38C44, IMP38HC44, IMP38C45, IMP38HC45 96% Maximum Duty Cycle: IMP38C42, IMP38HC42, IMP38C43, IMP38HC43 Figure 3. UVL Protection Circuit

IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5 8 408-432-9100/www.impweb.com © 2000 IMP , Inc. !S E D eA eB C 0°–15° A e b2 b L A1 Plastic DIP (8-Pin)a.eps Plastic DIP (8-Pin) L 0°– 8° C HE e D B A1 A SO (8-Pin).eps SO (8-Pin) e b D E1 E a L C D 0.10mm 0.004in A MicroSO (8-Pin).eps sehcnIs retemilliM niMx aMn iMx aM *)niP-8(OSorciM 1A0 200.09 500.00 50.05 1.0 2A5 920.04 730.05 7.05 9.0 b8 900.07 510.05 2.00 4.0 C1 500.01 900.03 1.03 2.0 D2 411.00 221.00 9.20 1.3 eC SB6520.0C SB56.0 EC SB391.0C SB09.4 1E2 411.00 221.00 9.20 1.3 L7 510.06 720.00 4.00 7.0 a °0 °6 °0 °6 )niP-8(OS A3 50.09 60.05 3.15 7.1 1A4 00.00 10.00 1.05 2.0 B3 10.00 20.03 3.01 5.0 C7 00.00 10.09 1.05 2.0 e0 50.07 2.1 E0 51.07 51.00 8.30 0.4 H8 22.04 42.00 8.50 2.6 L6 10.00 50.00 4.07 2.1 D9 81.07 91.00 8.40 0.2 *)niP-8(PIDcitsalP 2A5 11.05 91.02 9.25 9.4 b4 10.02 20.06 3.06 5.0 2b5 40.00 70.04 1.18 7.1 3b0 30.05 40.00 8.04 1.1 D5 53.00 04.02 0.96 1.01 E0 03.05 23.02 6.76 2.8 1E0 42.00 82.00 1.61 1.7 L5 11.00 51.02 9.21 8.3 AA781-OMgniwarDCEDEJ* AA211-SMgniwarDCEDEJ AB100-SMgniwarDCEDEJ* 3ta.50t_CH/C83 SO (8-Pin) SO (8-Pin) Package Dimensions

IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5 © 2000 IMP , Inc. PWM Controllers 9 Package Dimensions D eA C 0°–15° A E1 E e1 B1 B LA1 Plastic DIP (14-Pin).eps Plastic DIP (14-Pin) SO (14-Pin) HE eB D A SO (16-Pin).eps L 0°– 8° C sehcnIs retemilliM niMx aMn iMx aM *)niP-41(OS A6 290.03 401.05 3.25 6.2 1A0 400.08 11.00 1.00 3.0 B3 10.00 20.03 3.01 5.0 C1 900.05 210.03 2.02 3.0 D5 643.02 263.00 8.80 2.9 E4 12.02 992.00 4.70 6.7 eC SB050.0C SB72.1 H4 93.09 14.00 0.015 6.01 L6 10.00 50.00 4.07 2.1 **)niP-41(PIDcitsalP A5 51.00 02.04 9.38 0.5 1A0 2.00 5.01 5.07 2.1 B4 10.00 20.06 53.08 05.0 1B0 50.05 60.07 2.15 6.1 C8 00.02 10.04 02.04 03.0 D5 47.00 77.03 9.815 5.91 E0 03.05 23.02 6.75 2.8 1E0 42.00 62.00 1.60 6.6 1eP YT001.0P YT45.2 AeP YT003.0P YT26.7 FA310-SMgniwarDCEDEJ* BA-AA100-OMgniwarDCEDEJ** 3ta.60t_CH/C83

IMP , Inc. Corporate Headquarters 2830 N. First Street San Jose, CA 95134-2071 Tel: 408-432-9100 Fax: 408-434-0335 e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP , Inc. All other company and product names are trademarks of their respective owners. © 2000 IMP, Inc. Printed in USA Publication #: 3001 Revision: D Issue Date: 08/30/00 Type: Preliminary IMP38C/HC/42/3/4/5IMP38C/HC/42/3/4/5

Product Information

IMP38HC45EPA specifications and overview.

Summary

BiiCMOS Currentt--Mode BiiCMOS Currentt--Mode 08/30/00

Description

BiiCMOS Currentt--Mode BiiCMOS Currentt--Mode 08/30/00

Source title IMP38HC45EPA Datasheet(PDF) - A1 PROs co., Ltd.

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