M5270L MITSUBISHI | Alldatasheet

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MITSUBISHI <ANALOG ASSP> LOW SATURATION OUTPUT TYPE CURRENT DRIVER

DESCRIPTION

M5270L is dual Darlington current driver (semiconductor PIN CONFIGURATION (TOP view) integrated circuit) which consists of NPN transistors with clamp diode and it can be driven directly from 5V-type micro- ba] cuawe coum computers or logic ICs. fi | Low saturation output can be obtained by separating the oureut 2 (ouT2) ‘output stage transistor's collector from the drive stage tran- a= DRIVE 2 sistors. wu <j INPUT 2 (IN2) FEATURES [4] GNo 2 5] anny © Contains a clamp diode. © Operates by the H” level input. © Wide operating temperature range... Ta=—40~+85°C Outline 8P5 * PW= 10 ms, duty cycle 10% APPLICATION Motor drives for various relays or portable printers, digit drives for display elements such as LEDs and lamps, or power amplifiers FUNCTION Unlike the existing common-collector-type transistor arrays, M5270L realizes 0.3V of low saturation output voltage (typ, Ic = 0.7A) by separating the drive stage collector from the output stage collector. Therefore, the power dissipation which is determined by the product of the load current and the saturation output voltage can be greatly decreased. The maximum output current is 3.0A and up to 80V can be applied as the output voltage. CIRCUIT DIAGRAM HIGH ACTIVE ~ () onive weur vO) Q cm cuawe ! 4 Output ~ Function 1 14 ' 10k ‘x [trot Tovtovt ,t C) eno Lk [tony J Lee S r LM, GNO are common to channels 1 and 2. “The diode indicated by dashed lines ae already contained inthe IC structure unit. a theretore, it isnot necessary to attach it externally MITSUBISHI ate TUBS 9—51

MITSUBISHI <ANALOG ASSP> LOW SATURATION OUTPUT TYPE CURRENT DRIVER ABSOLUTE MAXIMUM RATINGS (Ta=257, unless omorwse noted) [ie | weirs ote vs input voltage _ __ 20 Vv ic Output curent Current por circuit when the outputs “U_ —3.0F a Va Clamp diode reverse voltage 80 Vv [ie | clamp dodo torwara cutrent [a [Pa | Power dissinaton | Tana jaan | wT Toor} Operating temperature = 40+ 85 Tstg Storage temperature =55~ +150 * : PW= 10s, duty cycle S 10% ‘#5 400mm" of copper fim is added RECOMMENDED OPERATING CONDITIONS (ta=25¥. urioss otherwise noted) Symbol Conditions Unit rm rameter tion jo Vo Drive stage applies votlage 4 S| wm] Vv | vce | Ourout applied votage Po | va [Gamo diode reverse votage Po Pv te Ciame diode forward current o 2.0 ee ELECTRICAL CHARACTERISTICS (1a= 25%, value/crcuit uniess otherwise noted) symbol >, Test condi Unit yb aramete st conditions tee ee] Ouiput breakdown volage [iceostoowa Vo =4v Vee‘sar) | Saturation output voltage oe a Ie=1.08, Ao =509 oa | o8| vy - Ig =0.7A, Ro = 1009 03 | 06 [wma lus euro dna [wso.sy or [100 [a Ta Clamp diode leak current Va =80V : __ 50 | HA Va ‘Clamp diode reverse voliage in = 10024 80 v Clamp diode foward worage ip = 2.08 I 30 [Vv fom2.04 pas [Tf yv [vue input vottage Toon = 504A Tv] TIMING DIAGRAM TYPICAL SPEED (Example) teniay) teen OY Y Vow 90% KY 50% S0%F go, 10 10% iad Fo=> Vou baw tony 9—s2 ate MISES

MITSUBISHI <ANALOG ASSP> MS270L LOW SATURATION OUTPUT TYPE CURRENT DRIVER TEST CIRCUITS 1. Viemiceo 2. Veecsat: ah Vo Vo Yo CLM Ro: CLM CLM h Mi ouT ve ouT un OuT ml 48 4. fovteak) 5. In teak Vo Vo 6. Va Vo a CLM CLM _ CLM lovieak NA out w out w out -O> | taf 7. Ve Vo CLM vy, our TYPICAL CHARACTERISTICS SAMPLE PCB LAYOUT When you design a layout of a PCB, you have to consider the THERMAL DERATING thermal derating. To improve the heat radiation of an IC, add 20 a 400 mm? of copper film at the base of the GND pin. This lw COPPER GILT will improve the thermal derating characteristics. zg. 400mm’ % 0.5] . e Sy iN > 50 100 150 AMBIENT TEMPERATURE Ta (°C) ae NERS ELECTRIC 9-53

MITSUBISHI <ANALOG ASSP> MS270L LOW SATURATION OUTPUT TYPE CURRENT DRIVER SATURATION OUTPUT VOLTAGE DRIVE STAGE VIAS VOLTAGE _ VS. DRIVE STAGE RESISTANCE VS. DRIVE STAGE RESISTANCE S20 4.0 3 ae 5 TT TT

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: see Ae i Nghe tata sat e om w : eee a eo 10 35 100 35 Ik 35° 10k 10 35 100 35 Ik 35 10k SATURATION OUTPUT VOLTAGE CLAMP DIODE FORWARD CURRENT VS. OUTPUT CURRENT VS. CLAMP DIODE FORWARD VOLTAGE S 4 = 10.0, 3 ese TTT] Pe oe oe oe i NTT TT a a _ SET # totes » EAH TEAH s=2SSS== s NOI ! & a es es a a |

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FE Coe “ai s 3A e CU Seo TL Tt | OUTPUT VOLTAGE INPUT CURRENT VS. VS. INPUT VOLTAGE AMBIENT TEMPERATURE TET TT ~uf ee, [4 8 alvorsv MY ee Sab te=75¢ = 0.4 St 3 \\\\\\ 3 | Spee | 3 lh att LETT TT | We a o 1 2 3 4 5 6 —60 —-40 —20 0 20 40 60 80 100 INPUT VOLTAGE Vj (Vv) AMBIENT TEMPERATURE T, (°C)

4 MITSUBISHI

MITSUBISHI <ANALOG ASSP> MS270L LOW SATURATION OUTPUT TYPE CURRENT DRIVER SATURATION OUTPUT VOLTAGE VS. AMBIENT TEMPERATURE = 1.6 Bia aan pageerscy g° oO. TA, Ro % od | EE e LLii i TT | 3 —g—49—20 0 20 40 60 80 100 AMBIENT TEMPERATURE Ta (°C) APPLICATION CIRCUIT (Stepping motor drive for a printer) r-| b-----4 'Q 4 ig S ® Ly t-----3 ov — bbood an LE ee CONTROL SIGNAL eee: | ; / re | ‘ol LIE Vcc. DRIVE, CLAMP, AND GNO ARE THE SAME FOR BOTH CIRCUITS. ELECTRIC 9—55