SABRE-LL-I
Combo motor driver
Data Brief
Features
Configurable Device 4 Full Bridges to generate Up 2 DC motor drivers and 1 SteppEr Motor Driver or 4 DC motor drivers
Bridges (1 & 2) additional configurations are Super DC 2 Half Bridges 1 super Half Bridge 2 switches 1 super switch Bridges (3 & 4) additional configurations are: Same as Bridges 1&2, listed above; 2 Buck Regulators (Bridge 3) 1 Super Buck Regulator Batter y Charger (Bridge 4) One variable voltage Buck switching regulator One switching regulator controller One linear regulator Bidirectional serial interface Programmable Watchdog function. Integrated power sequencing and supervisory functions with fault signaling through serial interface and external reset pin. Thermal shutdown protection with thermal warning capability.
TQFP64 Exposed Pad
Very low power dissipation in shut-down mode (~35 mW) Aux features Op amps Comparators Pass switches Multi-channels 9 bit ADC GPIOs
Description
SABRe is a new concept of IC in the Motion & Power Supply field. ST aim is to follow the SABRe specification and to offer to the customer an IC with a wide number of features, that can be configured and customized: Motor Drivers, Regulators, high precision A/D Converter, Operational Amplifiers and Voltage Comparators. The start up configuration can be defined by the GPIOs and then through the Serial Interface; a customization can be done through a metal layer in order to set more complex functions.
Table 1.
Device summary
Part number SABRE-LL-I Package TQFP64 Packing Tray
May 2007
Rev 1
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www.st.com 8
For further information contact your local STMicroelectronics sales office.
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Figure 1.
Block diagram
Block diagram
Bridge 2 Bridge 1
Block diagram
Main Switching regulator
Supervisory & Reset Manager
External FET Switch Driver
VREF=1V
Main Linear Driver
Thermal System
Switching reg. controller
(2x) 3.3V Pass Sw. Analog Mux
SA B Re
Bridge 4
Internal regulators Charge Pump Int. Ref. Volt
GPIOs
Op Amps
ADC
S/H
Batt. Charg. circuitry
S P I
Power Up Sequencer 6 bits current Sink DAC
Bridge 3
S ABRE -LL-I
AC00199
SABRE-LL-I
Detailed description
Detailed description
Four widely configurable Full Bridges. Diagonal Rdson are: Bridge 1 and 2: Diagonal Rdson: 1.1; Max operative current= 2.5A. Bridge 3 and 4: Diagonal Rdson: 1.6; Max operative current= 1.5A.
The possible configurations for each bridge are the following: Bridge 1 or 2: DC motor driver Super DC (Bridge 1 and 2 paralleled form SuperBridge1) 2 Half Bridges 1 super Half Bridge 2 switches
1 super switch Bridge 3 has the same configurations as Bridge 1 or 2 (Bridge 3 and 4 paralleled they form SuperBridge2) plus the following: ½ Stepper motor driver 2 Buck regulators (VAUX1_SW, VAUX2_SW)
1 super Buck regulator Bridge 4 has the same configurations as Bridge 1 or 2 (Bridge 4 and 3 paralleled they form SuperBridge2) plus the following:
½ Stepper motor driver 1 Super Buck regulator (VAUX3_SW) Batter y charger
One variable voltage Buck switching regulator (VMAIN_SW) with: Internal soft start sequence. Pulse skipping strategy control. Internal PWM generation. Internal power FET. Regulated voltage range: 1-5 Volts. Output load current: 3.0 A. Switching frequency: ~250KHz. One switching regulator controller (VEXT_SW) with: Pulse skipping strategy control. Internal PWM generation. Regulated voltage range: 1-30 Volts. Current limitation.
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Detailed description
S ABRE -LL-I
One linear regulator (VMAIN_LIN) that can be used to generate low current low ripple voltages. This regulator can be used to drive an external bipolar pass transistor to generate high current/low ripple output voltage. Current sink DAC: 64 available current levels (6 bits programmable). Up to 64 mA output current. 5 Volt tolerant. Two Operational Amplifiers: 3.3V supply, rail to rail input compatibility, internally compensated. They can have all pins externally accessible or can be internally configured as a buffer, for internal reference voltages. Unity Gain Bandwidth > 1MHz. Two Comparators with 3.3V input compatibility and low offset. Two 3.3V Pass Switches with 1 Rdson and short circuit protected. One 8bits/9bits A/D converter (100KS/sec @ 9 bits, 200KS/sec @8bits). It can be used to measure most of the internal signals, of the input pins and the IC temperature. Four teen General Purpose I/Os that can be used to drive/read internal/external analog/logic signals. Bidirectional Serial Interface with address detection so that different ICs can share the same data-bus. Programmable Watchdog function. Integrated power sequencing and supervisory functions with fault signaling through serial interface and external reset pin. Thermal shutdown protection with thermal warning capability. Very Low power dissipation in Shut-down mode (~35 mW) SABRe is intended to maximize the use of its components, so that when an internal circuit is not needed it could be used for other applications. Bridge 3, for example, can be used as a bridge or to implement two switching regulators with synchronous rectification: to obtain this flexibility SABRe includes 2 separate regulation loops for these regulators. When the bridge is used as a motor driver, the 2 regulation loops can be redirected on general purpose I/Os, to leave the possibility to assembly a switching regulator using an external FET and one of these regulation loops.
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SABRE-LL-I
Global specifications
Global specifications
Absolute maximum specifications
The following specifications define the maximum range of voltages or currents for SABRe. Stresses above these Absolute Maximum specifications may cause permanent damage to the device. Exposure to Absolute Maximum Ratings for extended periods may affect device reliability. Table 2.
Symbol VSupply_Abs V3V3pin_Abs VSw_Abs VPump_Abs Tj_Abs
Absolute maximum ratings
Parameters Maximum supply voltage 3.3V pins maximum input voltage Switching regulators output pin voltage range. Charge pump pins max voltage. Junction temperature (2)
(1)
Conditions
Min.
Max 40 3.9
Unit V V V V C C
-3
VSupply TBD
Storage Operating
-40 0
190 TSD
1. This value is useful to define the voltage rating for an external capacitor to be connected from VSupply to VPump. VPump is internally generated and can never be supplied by an external voltage source nor, is it intended to provide voltage to external loads. 2. TSD means the "Thermal Shut Down" temperature of the device.
Operating ratings specifications
Table 3.
Symbol VSupply_Op ISupply_Op IShut_down V3V3pin_Op Tj_Abs
IC operating ratings
Characteristic Supply voltage range Operative supply current Shut down state supply current 3.3 volt pins max voltage Junction temperature Operating 0
(1)
Conditions
Min 23
Max 38 15 1 3.6 125.
Unit V mA mA V C
1. Operating supply current is measured with System regulators operating but externally loaded only with the specified minimum load.
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Package information
S ABRE -LL-I
Package information
In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 2. TQFP64 mechanical data and package dimensions
mm D IM . MIN. A A1 A2 b c D D1 D2 D3 E E1 E2 E3 e L L1 k ccc 0 0.45 11.80 9.80 2.00 7 .5 0 0.50 0.60 1 .0 0 3 .5 7 0.080 0 0.75 0.05 0.95 0.17 0.09 11.80 9.80 2.00 7 .5 0 12.00 10.00 12.20 10.20 0.464 0.386 0.787 0.295 0.0197 0.0177 0.0236 0.0295 0.0393 3 .5 7 0.0031 12.00 10.00 1.00 0.22 TYP. M AX . 1.20 0.15 1.05 0.27 0.20 12.20 10.20 0.002 MIN. TYP. MAX. 0.0472 0.006 inch
OUTLINE AND MECHANICAL DATA
0.0374 0.0393 0.0413 0.0066 0.0086 0.0086 0.0035 0.464 0.386 0.787 0.295 0.472 0.394 0.480 0.401 0.472 0.394 0.0078 0.480 0.401
TQFP64 (10x10x1.0mm) Exposed Pad Down
7278840 B
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SABRE-LL-I
Revision history
Revision history
Table 4.
Date 3-May-2007
Document revision history
Revision 1 Initial release. Changes
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SABRE-LL-I
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