TB6596FLG Toshiba, TB6596FLG Datasheet

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TB6596FLG

Manufacturer Part Number
TB6596FLG
Description
Manufacturer
Toshiba
Datasheet

Specifications of TB6596FLG

Function
Driver
Vopmax (vm*)
5.5V (6V)
Io (lpeak)
0.6A (0.8A)
Channel
6-ch
I/f
serial input
Option
Const current x2
Package
QON36
Rohs Compatible†
yes
DC and Stepping Motor Driver IC
transistors with low ON-resistance.
H-bridge driver, four direct-PWM-controlled H-bridge drivers, and
also one linear constant-current H-bridge driver. The TB6596FLG
is best suited to control various lens actuators in digital still
cameras.
thus reducing the number of lines required for interfacing with
the control IC.
Features
Channel E: DC Motor Driver
Channel A and B or Channel C and D: Stepping Motor Driver
Channel F: Shutter Driver
Other Features
The TB6596FLG is a DC motor driver IC using LDMOS output
The TB6596FLG incorporates one PWM-constant-current
The three-wire serial interface provides control over the drivers,
Motor power supply voltage: V
Control power supply voltage: V
Output current: I
Complementary P- and N-channel LDMOS output transistors
Output ON-resistance: Ron (upper and lower sum) = 1.5 Ω (typ.)
High-speed PWM control at several hundred kHz
Motor control method can be selected from the following two with the serial data inputs:
1. Controls motor speed by using both a frequency-locked-loop (FLL) speed discriminator that compares the FG
2. Controls H-bridge by using a direct PWM input.
Two power switching transistors for optical encoder
Four H-bridge drivers (channel A and B, channel C and D) for direct PWM control.
(Capable of controlling up to two 2-phase bipolar stepping motors or four DC motors.)
Linear constant-current drivers
Current ramp-up rate control for improving the dependency of a current ramp-up slope on supply voltage change
at startup and also for improving its reproducibility.
(Increases current in up to 32 steps by using the internal CLK, which is derived by dividing CLK by 1 to 16.)
Two 6-bit DACs provide reference values for each constant-current limiters
Dedicated standby (power-save) pin
Thermal shutdown (TSD): Disables the output bias generator when the internal junction temperature exceeds
170°C.
Undervoltage lockout (UVLO): Resets and disables the internal circuitry when V
Small QON-36 package (0.5-mm lead pitch)
Compatible with Pb-free reflow soldering
and CLK signals, and an integrator.
(Typical speed = Between 250 Hz and 1750 Hz in 16 steps.)
OUT
≤ 0.8 A (max)
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
M
CC
≤ 6 V (max)
= 3 to 6 V
TB6596FLG
1
Weight: 0.08 g (typ.)
CC
falls below 2.2 V (typ.)
TB6596FLG
2008-01-29

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TB6596FLG Summary of contents

Page 1

... TOSHIBA BiCD Integrated Circuit Silicon Monolithic DC and Stepping Motor Driver IC The TB6596FLG motor driver IC using LDMOS output transistors with low ON-resistance. The TB6596FLG incorporates one PWM-constant-current H-bridge driver, four direct-PWM-controlled H-bridge drivers, and also one linear constant-current H-bridge driver. The TB6596FLG is best suited to control various lens actuators in digital still cameras ...

Page 2

... R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath · solder bath temperature = 245°C · dipping time = 5 seconds · the number of times = once · use of R-type flux 2 TB6596FLG 2008-01-29 ...

Page 3

... SW) Logic V CC Band gap V ref (0.3 V) PWM Start/stop control High-side switch E (H-SW E) control 6-bit DAC3 1/N H-SW F control 6-bit Slope DAC4 control (32 steps) 1/1 to 1/16 3 TB6596FLG PWMA AGND VM1 2 AO1 Pre- H-Bridge driver A 35 AO2 34 PGND1 33 BO1 Pre- H-Bridge driver B 32 BO2 8 VM2 9 ...

Page 4

... Rating Symbol Unit Min Typ. Max V 3 3.3 5 2.2 3.3 5 ⎯ ⎯ 600 I OUT ⎯ ⎯ mA 350 ⎯ ⎯ ⎯ ⎯ f 100 kHz PWM ⎯ MHz CLK 4 TB6596FLG Remarks CC M (Note) Remarks = 2.2 V ≤ V < 2008-01-29 ...

Page 5

... CKH ⎯ ⎯ ⎯ DCH ⎯ CHD ⎯ t 200 ns CHL ⎯ t 100 ns LDC2 ⎯ µ LDH ⎯ f 2.5 MHz CLK t CKH CKL CHD t t CHL LDH t DCH 5 TB6596FLG t LDC2 2008-01-29 ...

Page 6

... PWM is turned on and off.) OUT1 M OUT2 GND <PWM: ON> t1 OUT1 M <PWM: OFF → ON> t4 Output voltage waveform (OUT1) OUT1 M OUT2 OUT1 GND <PWM: ON → OFF> OUT2 OUT1 M GND <PWM: ON> TB6596FLG M OUT2 GND <PWM: OFF> OUT2 GND V M GND 2008-01-29 ...

Page 7

... When high-side output transistors are turned off, the TB6596FLG, by default, counts five rising edges of the internal clock signal as a turn-off period. (The counter resets at the sixth rising edge of the clock.) Based on this turn-off period, the TB6596FLG generates a PWM signal that turns on and off the output transistors. ...

Page 8

... The current ramp-up rate is specified by dividing an external CLK. The frequency divider ratio can be selected from 16 options (1/1 to 1/16) by using 4-bit serial data inputs. Power off 32-step OFF counter Vref OUT 5-bit DAC (32 steps) 8 TB6596FLG Current limit OFF RFF 2008-01-29 ...

Page 9

... The motor rotation speed (N) is calculated by the following equation: N (rpm (Hz)/CT × 60/Z CLK Z: Number of FG pulses per rotor rotation CT: Speed discriminator count FG Counter 1 Counter 2 Charge pump DVO Charge pump PWM control variable gain amp DVO Integrator 9 TB6596FLG 2008-01-29 ...

Page 10

... All input pins (CK, DATA, LD, PWME, PWMF, STBY, CLK) have a pull-down resistor of about 200 kΩ. The FGIN pin is pulled via a pull-up resistor of about 200 kΩ. CC CK, DATA, LD, PWMA PWMF, STBY, CLK V CC Speed discriminator DVO Charge signal To control Discharge signal amp Input 200 kΩ GND 10 TB6596FLG 2008-01-29 ...

Page 11

... Constant-current ramp-up rate (4 bits) ⎯ 1 mod6 pm6 If6 0 DA6 (6 bits): Sets the current level for channel F ⎯ ⎯ ⎯ ⎯ 1 ⎯ ⎯ ⎯ ⎯ 0 ⎯ ⎯ ⎯ 1 off 11 TB6596FLG First Address ⎯ ⎯ 0 ⎯ ⎯ 1 ⎯ ⎯ 2 ⎯ ⎯ sw2 sw1 5 6 ...

Page 12

... Reverse brake → Short brake • The reverse brake time is specified by serial data. (When Reverse brake time = 0, the TB6596FLG does not enter Reverse brake mode.) • During the reverse brake operation, the operating mode cannot be changed. • When the PMx input changes during the short brake operation at modx = 0, the operating mode changes according to the spxa and pxb inputs as shown in the above table ...

Page 13

... FLL Min (Design target only) FLL Max FLL step Ftrig Min (Design target only) Ftrig Max Ftrig step Tmin (Design target only) Tmax T step TSD (Design target only) ∆TSD 13 TB6596FLG = 25°C) M Min Typ. Max Unit ⎯ 1 2.5 mA ⎯ 0.1 10 µA ⎯ ...

Page 14

... H-Bridge DO2 driver D 14 Start/stop TSD VM3 control 20 EO1 31 DC H-SW E Pre- H-Bridge EO2 control driver motor FGIN PWM timer R1 = 0.5 Ω RFE 30 FO1 15 H-Bridge Shutter H-SW F Pre- F control driver coil FO2 (Linear 0.5 Ω RFF 16 TB6596FLG Motor power supply ( 2 5.5 V 2008-01-29 ...

Page 15

... When using the TB6596FLG, it should be ensured that the thermal pad and solder plated pads (shaded areas in the top and bottom views) are electrically insulated (Note). Note: Care should be taken in the board design to prevent solder for through-hole joints from flowing to the solder plated pads on the bottom of the package (shaded areas in the bottom view). • ...

Page 16

... Package Dimensions Weight: 0.08 g (typ.) 16 TB6596FLG 2008-01-29 ...

Page 17

... Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or combustion. In addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time. 17 TB6596FLG 2008-01-29 ...

Page 18

... If the current sink capability of the power supply is small, the device’s motor power supply and output pins might be exposed to conditions beyond maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. 18 TB6596FLG 2008-01-29 ...

Page 19

... Please use this product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. 060819_AF • The products described in this document are subject to foreign exchange and foreign trade control laws. 021023_D 021023_B 060106_Q 19 TB6596FLG 070122EBA_R6 060925_E 2008-01-29 ...

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