E-L6207D STMicroelectronics, E-L6207D Datasheet
E-L6207D
Specifications of E-L6207D
Related parts for E-L6207D
E-L6207D Summary of contents
Page 1
... CROSS CONDUCTION PROTECTION THERMAL SHUTDOWN UNDER VOLTAGE LOCKOUT INTEGRATED FAST FREE WHEELING DIODES TYPICAL APPLICATIONS BIPOLAR STEPPER MOTOR DUAL DC MOTOR DESCRIPTION The L6207 is a DMOS Dual Full Bridge designed for motor control applications, realized in MultiPower- BLOCK DIAGRAM VBOOT V BOOT CHARGE VCP ...
Page 2
... Supply Voltage S V Differential Voltage Between OUT1 , OUT2 , SENSE OUT1 , OUT2 Voltage Range at pins V REFA V and V REFB REFB V Voltage Range at pins SENSE SENSEA, V and SENSE SENSEB B I RMS Output Current OUT T Operating Junction Temperature j f Switching Frequency sw 2/23 Test conditions 60V; ...
Page 3
... Mounted on a multi-layer FR4 PCB with a dissipating copper surface on the top side of 6cm (3) Mounted on a multi-layer FR4 PCB with a dissipating copper surface on the top side of 6cm and a ground layer. (4) Mounted on a multi-layer FR4 PCB without any heat sinking surface on the board. ...
Page 4
... B Logic Input MOSFETs of Bridge B. This pin is also connected to the collector of the Overcurrent and Thermal Protection transistor to implement over current protection. If not used, it has to be connected to +5V through a resistor. Supply Bootstrap Voltage needed for driving the upper Power Voltage MOSFETs of both Bridge A and Bridge B. ...
Page 5
... PIN DESCRIPTION (continued VREF (6) Also connected at the output drain of the Over current and Thermal protection MOSFET. Therefore, it has to be driven putting in series a resistor with a value in the range of 2.2K ELECTRICAL CHARACTERISTICS ( ° 48V, unless otherwise specified) amb s Symbol Parameter V Turn-on Threshold Sth(ON) ...
Page 6
... OCD Turn-on Delay Time (10) OCD(ON) t OCD Turn-off Delay Time (10) OCD(OFF) (7) Tested at 25° restricted range and guaranteed by characterization. (8) See Fig. 1. (9) Measured applying a voltage pin SENSE and a voltage drop from pin VREF. (10) See Fig. 2. 6/23 Test Conditions (8) I =2.8A, Resistive Load LOAD I =2 ...
Page 7
... Figure 1. Switching Characteristic Definition EN V th(ON) V th(OFF) I OUT 90% 10% D01IN1316 Figure 2. Overcurrent Detection Timing Definition I OUT I SOVER ON BRIDGE OFF V EN 90% 10% t FALL t t D(OFF)EN D(ON) OCD(ON) OCD(OFF) L6207 RISE D02IN1399 7/23 ...
Page 8
... Bridge B) are also connected to these pins. Due to these connections some care needs to be taken in driving these pins. The EN puts may be driven in one of two configurations as shown in figures driven by an open drain (collector) structure, a pull-up resistor R pacitor C driver is a standard Push-Pull structure the resistor ...
Page 9
... Since the internal dead time, used to prevent cross conduction in the bridge, delays the turn on of the power MOS, the effective off time is the sum of the monostable time plus the dead time. Figure 7. PWM Current Controller Simplified Schematic ...
Page 10
... OFF(MIN 6ms OFF(MAX) These values allow a sufficient range of t The capacitor value chosen for C Rise Time t will only be an issue if the capacitor is not completely charged before the next time the RCRISE monostable is triggered. Therefore, the on time t 10/23 t OFF BLANK ...
Page 11
... PWM stage. Furthermore, the on time t RCRISE can not be smaller than the minimum on time t t > 1.5 s (typ. value MIN t > t – RCRISE DT 600 · C RCRISE OFF Figure 10 shows the lower limit for the on time t ...
Page 12
... SLOW DECAY MODE Figure 11 shows the operation of the bridge in the Slow Decay mode. At the start of the off time, the lower power MOS is switched off and the current recirculates around the upper half of the bridge. Since the voltage across the coil is low, the current decays slowly. After the dead time the upper power MOS is operated in the synchro- nous rectification mode ...
Page 13
... OCD comparator signals a fault condition. When a fault condition is detected, the EN pin is pulled below the turn off threshold (1.3V typical internal open drain MOS with a pull down capability of 4mA. By using an ex- ternal R-C on the EN pin, the off time before recovering normal operation can be easily programmed by means of the accurate thresholds of the logic inputs ...
Page 14
... L6207 Figure 13. Overcurrent Protection Waveforms I OUT I SOVER th(ON) V th(OFF) ON OCD OFF ON BRIDGE OFF t OCD(ON) 14/23 V EN(LOW DELAY EN(FALL) OCD(OFF) t D(OFF)EN DISABLE t EN(RISE) D(ON)EN D02IN1400 ...
Page 15
... In addition to the Ovecurrent Protection, the L6207 integrates a Thermal Protection for preventing the device destruction in case of junction over temperature. It works sensing the die temperature by means of a sensible element integrated in the die. The device switch-off when the junction temperature reaches 165°C (typ. value) with 15° ...
Page 16
... L6207 APPLICATION INFORMATION A typical application using L6207 is shown in Fig. 16. Typical component values for the application are shown in Table 3. A high quality ceramic capacitor in the range of 100 to 200 nF should be placed between the power pins (VS and VS ) and ground near the L6207 to improve the high frequency filtering on the power supply and ...
Page 17
... THERMAL MANAGEMENT In most applications the power dissipation in the IC is the main factor that sets the maximum current that can be de- livered by the device in a safe operating condition. Therefore, it has to be taken into account very carefully. Besides the available space on the PCB, the right package should be chosen considering the power dissipation. Heat sinking can be achieved using copper on the PCB with proper area and thickness ...
Page 18
... Slug soldered to PCB with dissipating area plus ground layer dissipating area plus ground layer W ith yer W ith Gro yer W ith Gro yer+ 16 via Are tto Are Slug soldered to PCB with contacted through via holes On-Board Copper Area On-Board Copper Area ...
Page 19
... Figure 23. Typical Quiescent Current vs. Supply Voltage 5 1kHz sw 5.4 5.2 5.0 4.8 4 [V] S Figure 24. Normalized Typical Quiescent Current vs. Switching Frequency kHz) 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0 [kHz] SW Figure 25. Typical Low-Side R Supply Voltage DS(ON) 0.300 0.296 T = 25°C j 0.292 0.288 ...
Page 20
... H 15.50 15.90 0.610 h 1.10 L 0.80 1.10 0.031 N 10 (max (max.) (1): "D" and "E1" do not include mold flash or protrusions - Mold flash or protrusions shall not exceed 0.15mm (0.006 inch) - Critical dimensions are "a3", "E" and "G" DETAIL 45˚ 20/23 inch MIN. TYP. MAX. ...
Page 21
... E1 6.350 6.600 6.860 0.250 e1 7.620 L 3.180 3.430 0.125 M 0˚ min, 15˚ max inch MECHANICAL DATA TYP. MAX. 0.170 0.130 0.018 0.020 0.060 0.065 0.010 0.012 1.250 1.255 0.325 0.100 0.260 0.270 0.300 0.135 L6207 OUTLINE AND Powerdip SDIP24L 21/23 ...
Page 22
... L 0.40 1.27 0.016 k 0˚ (min.), 8˚ (max.) ddd 0.10 (1) “D” dimension does not include mold flash, protusions or gate burrs. Mold flash, protusions or gate burrs shall not exceed 0.15mm per side. 22/23 inch MIN. TYP. MAX. 0.104 0.012 ...
Page 23
... STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States All other names are the property of their respective owners © ...