GM34063S8R

GM34063 GAMMA | Alldatasheet

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Technical content

Features

3.0V to 40V input Adjustable Output Voltage Current Limiting Output Switch Current to 1.5A Low Standby Current Operating Frequency to 100kHz Precision 2% Reference Switch Collector Switch Emitter Timing Capacitor GND Driver Collector I Sensepk VCC Comparator Inverting Input I Oscillatorpk Comparator S Q R CT 1.25V Reference Regulator SCHEMATIC DIAGRAM Battery Chargers DSL Modem GM34063 V0.1 www.gammamicro.com 1 (Bottom View) 100 A A MICROELECTRONICS GM34063 1.5A DC-TO-DC CONVERTER CONTROL CIRCUIT Power Management

A : Assembly Location Y : Year W W : Weekly Operation Ambient Temperature Range Package Shipping SOP-8 2,500 /T ape &ReelUnits GM34063S8R Ordering Number DIP-8 SOP-8 GM34063D8T GM34063S8T 0 to 70°C 0 to 70°C 0 to 70°C

60 Units/ Tube

Switch Emitter Timing Capacitor GND DIP - 8 7 6 5 4321 I Sensepk Driver Collector VCC Comparator Inventing Input Switch Collector Switch Emitter MARKING INFORMATION & PIN CONFIGURATIONS (TOP VIEW)

ORDERING INFORMATION

• For detail Ordering Number identification, please see last page. A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT Power Management

PARAMETER SYMBOL VALUE UNIT

40 Vdc

Comparator Input Voltage Range -0.3 to + 40 Vdc Switch Collector Voltage Switch Emitter Voltage (V = 40 V)PIN1 Switch Collector to Emitter Voltage Driver Collector Voltage Driver Collector Current(Note 1) Switch Current Power Dissipation and Thermal Characteristics Plastic Package, D Suffix T = 25°CA Thermal Resistance T = 25°CA Thermal Resistance 100 1.5 Vdc Vdc mA A Power Supply Voltage Operating Junction Temperature +150 0 to + 70 -40 to +125 Storage Temperature Range -65 to +150 °C V CC VIR VC(Switch) VE(Switch) VCE(Switch) VC(driver) IC(driver) ISW PD RqJA PD RqJA TJ TA TSTG 1.25 100 625 160 W °C/W mW °C/W Note 1. Maximum package power dissipation limits must be observed GM34063 Vdc Operating Ambient Temperature Range GM34063 GM34063E Vdc A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT Power Management

ELECTRICAL CHARACTERISTICS (V = 5.0 V, T = T TO Thigh unless otherwise specified)CC A IOW CHARACTERISTICS MinSymbol Typ Max Unit Frequency (V = 0 V, C = 1.0nF, T = 25°C)Tpin5 A Charge Current (V = 5.0V to 40V, T = 25°C) CC A Discharge Current (V = 5.0V to 40V, T = 25CC A °C) Discharge to Charge Current Ration (Pin 7 to V T = CC A 25°C) Current Limit Sense Voltage (I = I , T = 25°C ) chg dischg A OSCILLATOR 24fOSC 140 5.2 250 Ichg Idischg I / dischg Ichg Vipk(sense) 220 6.5 300 kHz µA µA mV 260 7.5 350 OUTPUT SWITCH (Note 2) Saturation Voltage, Darlington Connection (I = 1.0A, Pins 1, 8 connected)SW Supply Current (V = 5.0V to 40 V, C = 1.0 nF, Pin 7 = VTCC CC V > V Pin 2 = GND remaining pins open)pin5 th VCE(sat) VCE(sat) ICC 1.0 0.45 V V mA 1.3 0.7 4.0 DC Current Gain (I = 1.0 A, V = 5.0 V, T = 25°C)SW EC A 50hFE 75 -- Collector Off - State Current (V = 40 V)CE -IC(Off) 40 100 µA COMPARATOR Threshold Voltage T = 25°CA T = T to T A IOW high 1.225 1.210 Vth 1.25 V 1.275 1.29 Threshold Voltage Line Regulation (V = 3.0V to 40V)CC Input Bias Current (V = 0V)IN Regline IIB 1.4 -20 5.0 -400 mV nA TOTAL DEVICE Note 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. Note 3. If the output switch is driven into hard saturation (non-arlington configuration) at low switch currents ( 300 mA) and high driver currents ( 30 mA), it may take up to 2.0 ms for it to come out of saturation. This condition will shorten the off time at frequencies 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non-Darlington configuration is used, the following output drive condition is recommended: Forced b of output switch : * The 100 W resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts. I outputC I driver - 7.0 mA*C GM34063 Saturation Voltage (Note 3) (I = 1.0 A, R = 82 W to V , Forced b 20)SW Pins 8 CC A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT Power Management

Figure 7. External Current Boost Connections for I Peak Greater than 1.5AC

28 V / 175 mA

Figure 8. External Current Buck Connections for I Peak Greater than 1.5AC

5.0 V / 500 mA

Figure 9. External Current Boost Connections for I Peak Greater than 1.5AC

Calculation Step - Up Step - Down Voltage - Inverting t / ton off (t + t )on off V + V - Vout F IN(min) V - VIN(min) sat V + V out F V - V IN(min) sat -Vout IV I + V out F V - VIN sat f toff t + ton off ton toff + 1 ton (t + t ) - on off ton CT 4.0 x 10 ton Ipk(switch) CO

2 I ( )out(max)

+ 1 2 Iout(max) RSC 0.3/ Ipk(switch) L(min) (V - V )IN(min) sat Ipk(switch) ( ) ton(max) Itout on Vnpple(pp) I (t + t )pk(switch) on off 8Vripple(pp) V = Saturation voltage of the output switch.sat V = Forward voltage drop of the output rectifier.F V - Nominal input voltage.IN V - Desired output voltage,out I - Desired output current. out f - Minimum desired output switching frequency at the selected values of V and I .min IN O V - Desired peak-to peak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its ripple(pp) equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the line and load regulation. f f (t + t ) - on off ton + 1 Itout on Vripple(pp) 4.0 x 10 ton 0.3/ Ipk(switch) (V - V )IN(min) out V-sat Ipk(switch) ( ) ton(max) t + ton off ton toff + 1 t + ton off ton toff + 1 (t + t ) - on off ton 4.0 x 10 ton 0.3/ Ipk(switch) (V - V )IN(min) sat Ipk(switch) ( ) ton(max) A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT Power Management

A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT 0.275 7.0 0.155 4.0 0.060 1.52 0.050 1.270 0.024 0.6 Inches mm( ) Pad Layout SOP-8 P ACKAGE OUTLINE DIMENSIONS 0.236 ± 0.008

0.050 NOM

1.270 NOM

+0.21 -0.205.990 3.91 ± 0.1 +0.003 -0.0040.154 PIN INDENT 1.600 ± 0.130 0.063 ± 0.005

0.057 NOM

1.450 NOM

0.175 ± 0.075 0.007 ± 0.003 +0.004 -0.0030.016 +0.10 -0.080.410 +0.0018 -0.00050.008 +0.05 -0.010.200 +0.013 -0.0220.028 +0.33 -0.560.710 +0.002 -0.0040.191 +0.05 -0.104.850 Inches mm( ) 0 ~ 8°° DIP-8 P ACKAGE OUTLINE DIMENSIONS

0.015 MIN

0.380 MIN

0.26 ± 0.006 +0.15 -0.166.60 0.36 ± 0.01 +0.25 -0.269.14

0.180 MAX

4.570 MAX

0.125 MIN

3.180 MIN

+0.002 -0.0060.13 +0.05 -0.153.30 0.018 ± 0.004 0.46 ± 0.10 0.039 ± 0.07 0.99 ± 0.18 0.06 ± 0.01 +0.26 -0.251.52

0.100 NOM

2.540 NOM

0.021 ± 0.005 +0.12 -0.130.53 +0.010 -0.0150.30 +0.25 -0.387.62 +0.002 -0.0030.01 +0.05 -0.080.25 0.365 ± 0.02 9.27 ± 0.51 Inches mm( ) Power Management

Gamma Micro. Circuit Type Package S8: SOP-8 D8: DIP-8 Shipping T: Tube R: Tape & Reel A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT Power Management

A A MICROELECTRONICS GM34063 1.5A DC-to-DC CONVERTER CONTROL CIRCUIT GM34063 Power Management