This document provides a device modeling report for a PWM stepping motor driver with the part number TB62206FG manufactured by Toshiba. The report details the circuit configuration including components, block diagrams of subcircuits, parameter definitions, and simulation results comparing phase input to phase output current.

1. Device Modeling Report
COMPONENTS: PWM Stepping Motor Driver
PART NUMBER: TB62206FG
MANUFACTURER: TOSHIBA
Bee Technologies Inc.
1

2. Circuit Configuration
U1
1 CR TORQUE 20
2 VDD OUT_B1 19
3 VREF_A ENABLE_B 18
4 VREF_B ENABLE_A 17
5 RS_B OUT_B 16
FIN GND
6 RS_A OUT_A 15
7 VM PHASE_B 14
8 CCP_C PHASE_A 13
9 CCP_B OUT_A1 12
10 CCP_A STANDBY 11
VM = 24
TB62206FG
COSC = 560PF
ROSC = 3.6K
CCP1 = 0.22UF
CCP2 = 0.022UF
2

3. 3

4. SUBCKT Block Diagram
VDD
VM ERST_A
EVALUE RDD1
RPU_STB IF( V(ENABLE_A)<0.75 | V(STANDBY )<0.75 | V(ISDA)>0.75, 0, 5 ) 2.5k
STANDBY RPD_STB
10 RRST_A U31
ILVA1 RST_A U27
VM IN+ OUT+ 1 2 1 GND
IN- OUT- PHASE_A
RPU_EA CRST_A 3
ENABLE_A RPD_EA 100p INV 2 CR
OSC
IC = 0 V1
ENFA AND2 U28 TD = 0
VM 0 EVALUE 1 VOSC V1 = 0 TF = {tosc/4}
RPU_EB IF( V(PHASE_A)>0.75, V(IMX_A), -V(IMX_A)+100m) 3 R8 V2 = 5 PW = 10n
CTRLA
ENABLE_B RPD_EB 2 1MEG TD = 1.25ns PER = {tosc}
2
10RNFA TR = 10n V1 = 1.9V
ILVA3 NFA U32 AND2 U29 TF = 10n TR = {3*tosc/4}
VM IN+ OUT+
INV 1 PW = {3*tosc/4} V2 = 3.1V
RPU_PA IN- OUT- CNFA 3 PER = {tosc}
PHASE_A RPD_PA 100p 2
1
f chop 0 0
IC = 0 GND
AND2 PARAMETERS:
VM 0 tosc = {0.523*(Cosc*Rosc+600*Cosc)}
f chop
3
2
1
RPU_PB ERNFA
PHASE_B RPD_PB EVALUE U30 Vchop V1 = 0.5
IF( V(PHASE_A)>0.75, V(IMX_A)-100m, -V(IMX_A)) OR3 V2 = 5
R_chop TD = 1.25ns
10 RRNFA 1MEG TR = 10n
GND ILVA4 RNFA TF = 10n
IN+ OUT+ PW = {5*tosc}
IN- OUT- CRFA PER = {tosc*8}
4
100p Output Control (Mixed Decay Control)
IC = 0 0 0
R10
Chopper OSC
Input Logic 0 100
CTRLA1
Current Level Set ENFA1 CEAA1
ETQ EVALUE 10RNFA1 30p EMDA2
EVALUE IF( V(RST_A)<0.75 , 0, V(NFA) ) IC = 0 EVALUE RMDA2 10
IF( V(TORQUE)>0.75, 1, 0.71) RTQ ILVA5 NFA1 0 IF( V(PHASE_A)>0.75 & V(RST_A)<0.75, 3.5, V(MDA1) )
TORQUE IN+ OUT+
ILVA7 TQ MDCA2 MDA2
R_PIN1 IN+ OUT+ IN- OUT- CNFA1 U19 U20 IN+ OUT+
100
1
IN- OUT- CTQ 100p IN- OUT- CMDA2
1MEG PHASE_A
100P IC = 0 3NMDC1 2 MDA1 100p
MDA 2 IC = 0
GND EIMX_A 0 ERNFA1 INV
0 EVALUE 10 RIMX_A EVALUE 10 RRNFA1 XOR RMDA1 0
Vref _A 0.2*V(Vref _A)*V(TQ)/V(RS_A1) IF( V(RST_A)<0.75, 0, V(RNFA) ) 1MEG
ILVA2 IMX_A ILVA6 RNFA1
R_REFA IN+ OUT+ IN+ OUT+ EMDA3 EMDA4
IN- OUT- CIMX_A IN- OUT- CRFA1 EVALUE RMDA3 10 EVALUE RMDA4 10
1MEG
100P 100p 0 IF( V(PHASE_A)<0.75 & V(RST_A)<0.75, 0, V(MDA1)IF( V(PHASE_A)>0.75, V(MDA2), V(MDA3) )
)
IC = 0 U17 U18 MDCA3 MDA3 MDCA4 MDA4
1
IN+ OUT+ IN+ OUT+
GND PHASE_A
0 0 3
1 2 IN- OUT- CMDA3 IN- OUT- CMDA4
RSTCA
CTRLA 2 100p 100p
INV IC = 0 IC = 0
XOR U11 U12
0 U16 0
NMDC1 Q
Current Feedback ( A ) ERS_A
HI
U13 1 5NMDC4 1
A 5 1 4 MDA
J Q J Q TQ Q
EVALUE 10 RRS_A
((V(VM)-V(RS_A))/V(ILA)) 1 2 2 2 2 B 5 RMDA
OSC CLK CLK CLK Q 1k
IFBA2 RS_A1
R
IN+ OUT+ INV 3 6NMDC5 3 6NMDC6
RS_A IN- OUT- K Q K Q
G_RsA CRS_A
3
0
R
R
I(VLA) TFFR
100P
E_VL1_A E_EA_A V2
4
4
OUT+ IN+ 0 0 AC = NMDC2 JKFFR JKFFR
EVALUE EVALUE TRAN =
OUT- IN- I(VLA) 10 R_VLA LIMIT(1E5*V(ILA,TRGA),5,0) 10REAA NMDC3
DC = 5
GVALUE IFBA1 ILA IFBA4 CTRLA
IN+ OUT+ IN+ OUT+ 0
GND 0 IN- OUT- C_VLA IN- OUT- CEAA
Protection Unit (ISD)
100p 100p EVALUE EISDA_REF 10 RISDA_REF E_ISDA
VM IC = 0 R_ABILA 10 E_ABILA EVALUE EVALUE RISDA 10
ETRGA IF(I(VLA)>0,I(VLA),-I(VLA)) IF(V(ISDA)<1 | V(STANDBY )<0.75,1.8,-0.1) IF( V(AB_ILA)>V(ISDA_REF) , 5, 0)
0 EVALUE 10 RTRGA AB_ILA ISDA1 ISDA2 ISDA_REF ISDA3 ISDA
IF(V(CTRLA1)>1,V(RNFA1),V(NFA1)) 0 OUT+ IN+ IN+ OUT+ IN+ OUT+
IFBA3 TRGA OUT- IN- IN- OUT- IN- OUT-
IN+ OUT+ C_ABILA CISDA_REF
IN- OUT- CTRGA CISDA
100p 100p
100p IC = 0 100p
IC = 0 IC = 0
0 0 0 0
VM VM
EGUA1 EGUB1
EVALUE RGA1 10k S_UA1 S_UB1 10k RGB1 EVALUE
Charge Pump Unit IF( V(CTRLA1)<0.75 & V(MDA4)<0.75 ,V(Ccp_A),0 ) IF( V(CTRLB1)<0.75 & V(MDB4)<0.75 ,V(Ccp_A),0 )
EChrg GU1_A OA1 + + + + OB1 GU1_B
IF(I(V_Q4)>10m, 3.5, 0) IN+ OUT+ OUT+ IN+
IN- OUT- -
S
- - S- OUT- IN-
ECcp_C Q_Ccp_A OUT+ IN+ VON = 10V VON = 10V
V_Q4 OUT- IN- 0 0
RCcp_C 50 IF( V(STANDBY )>0.75 ,V(VCcp_C), V(VM)-0.7 ) VOFF = 2.5V VOFF = 2.5V
QP4 R5 EVALUE EGLA1
Ccp_C OUT+ IN+ 0 0 EGLB1
100k EVALUE RGA3 10k S_LA1 S_LB1 10k RGB3 EVALUE
OUT- IN- IF( V(CTRLA1)<0.75 & V(MDA4)<0.75 ,0,V(Ccp_A) ) IF( V(CTRLB1)<0.75 & V(MDB4)<0.75 ,0,V(Ccp_A) )
EVALUE GL1_A OA2 + + OB2 GL1_B
+ +
ECcp_B 0 IN+ OUT+ OUT+ IN+
IF( V(STANDBY )>0.75 ,V(VM)-2+V(VCcp_C)/2.5 ,V(VM)-0.7) IN- OUT- -
S
- - S- OUT- IN-
0Ecp_on VON = 10V VON = 10V
Ccp_B OUT+ IN+ 0 0
IF(V(STANDBY )>0.75, 6.5, 0) VOFF = 2.5V VOFF = 2.5V
OUT- IN- Rcp_on
EVALUE 0 0
QP1 Cp_ON GND GND
ECcp_A 0 IN+ OUT+ VM VM
IN- OUT- 100
125 R6 IF( V(STANDBY )>0.75, V(Q_Ccp_A), 0) EGUA2 EGUB2
QP2 EVALUE Ccp_on EVALUE RGA2 10k S_UA2 S_UB2 10k RGB2 EVALUE
Ccp_A OUT+ IN+
0.22uF IF( V(CTRLA1)>0.75 & V(MDA4)>0.75 ,V(Ccp_A),0 ) IF( V(CTRLB1)>0.75 & V(MDB4)>0.75 ,V(Ccp_A),0 )
OUT- IN- VCcp_C IC = 0 GU2_A OA3 + + OB3 GU2_B
+ +
EVALUE V1 = {VM-1.4} IN+ OUT+ OUT+ IN+
QP3 V2 = {CP_V2} PARAMETERS: IN- OUT- -
S
- - S- OUT- IN-
ECcp_A1 0 TD = 0 Vcp 0 CP_PW = {800*Ccp2} VON = 10V VON = 10V
0 VLA VLB 0
V(Cp_ON)+V(VM)-2 TR = 10N RV_C CP_PER = {18.5u+1800*Ccp2} VOFF = 2.5V VOFF = 2.5V
TF = 10N 100k CP_V2 = {250E6*Ccp2} 0 OA5 0
OUT+ IN+ PW = {CP_PW}
OB5
OUT- IN- PER = {CP_PER} PARAMETERS: EGLA2 EGLB2
EVALUE EVALUE RGA4 10k S_LA2 S_LB2 10k RGB4 EVALUE
VM = 24V
IF( V(CTRLA1)>0.75 & V(MDA4)>0.75 ,0,V(Ccp_A) ) IF( V(CTRLB1)>0.75 & V(MDB4)>0.75 ,0,V(Ccp_A) )
0 0 GL2_A OA4 + + + + OB4 GL2_B
IN+ OUT+ OUT+ IN+
IN- OUT- -
S
- - S - OUT- IN-
VON = 10V VON = 10V
0 VOFF = 2.5V VOFF = 2.5V 0
0 GND GND 0
OUT_A1
OUT_AOUT_B
OUT_B1
4

5. Phase Input vs. Phase Output Current ( 250Hz Phase Frequency )
Circuit Simulation Result
3.0A 20V
1 2 3
2.5A
Phase A Input
2.0A
1.5A
Phase B Input
1.0A 0V
0.5A
Phase A Output Current
0A
-0.5A
>>
-1.0A -20V
0.1ms 2.0ms 4.0ms
1 I(U1:OUT_A1) 2 V(U1:PHASE_A) 3 V(V_PHASE_B:+)
Time
Measurement (Breadboard waveforms)
5

6. Application Circuit ( 250Hz Phase Frequency )
Evaluation circuit
RSA
Rosc 3.6k 9.8ohm
L1
U1 2 1
CR TORQUE
Cosc 560pF VDD OUT_B1 8.45mH
2
VREF_A ENABLE_B IC = -0.5A
VREF_B ENABLE_A
0 RS_B OUT_B IC = -0.5A
0.5 RRSB 8.45mH
0.5 RRSA FIN L2
RS_A OUT_A 0 1
VM PHASE_B
CCP_C PHASE_A RSB 9.8ohm
CCP_B OUT_A1
CCP_A STANDBY
TB62206FG
Cccp_2 Cccp_1 CCP1 = 0.22UF
VM1 0.022uF 0.22uF CCP2 = 0.022UF
24Vdc CVM1 V_PHASE_A V_PHASE_B
100uF ROSC = 3.6K V5 V1 = 0 V1 = 5V
COSC = 560PF 0s V V2 = 5V V V2 = 0
0 10ns TD = 0 TD = {tphase/4}
VD C1 VM = 24 0V TR = {trphase} TR = {trphase}
5Vdc 10uF
0 0 RNFA = 10.7mV 5V TF = {tf phase} TF = {tf phase}
V_REFB RNFB = 10.7mV PW = {pwphase} PW = {pwphase}
DC = 1.25 PER = {tphase} PER = {tphase}
1uF 0 0 0
0 0 Cv ref B
PARAMETERS:
0 0 f phase = 250Hz
V_REFA
DC = 1.25 tphase = {1/f phase}
tdphase = {trphase+pwphase/2}
Cv ref a pwphase = {-2*trphase+tphase/2}
1uF
trphase = 100n
tf phase = {trphase}
0 0
6

7. MIXED DECAY MODE Current Waveform
Circuit Simulation Result
800mA 4.0V
1 2
CR pin osc waveform
700mA
600mA
500mA
MIXED DECAY MODE Current Ripple
400mA 0V
300mA
200mA
100mA
>>
0A -4.0V
64us 66us 68us 70us 72us 74us 76us 78us 80us 82us 84us
1 I(U1:OUT_A1) 2 V(U1:CR)
Time
Measurement (Breadboard waveforms)
CR pin osc waveform
MIXED DECAY MODE Current Ripple
7

8. MIXED DECAY MODE ( fosc=800kHz, fchop=100kHz )
Evaluation circuit
RSA
Rosc 3.6k 7.5ohm
L1
U1 2 1
CR TORQUE
Cosc 560pF VDD OUT_B1 1.562mH
V 2
VREF_A ENABLE_B IC = 0A
VREF_B ENABLE_A
0 RS_B OUT_B IC = -0.5A
0.5 RRSB 1.562mH
0.5 RRSA FIN L2
RS_A OUT_A 0 1
VM PHASE_B
CCP_C PHASE_A RSB 7.5ohm
CCP_B OUT_A1
CCP_A STANDBY
I
TB62206FG
Cccp_2 Cccp_1 CCP1 = 0.22UF
VM 0.022uF 0.22uF CCP2 = 0.022UF
24Vdc CVM
100uF ROSC = 3.6K V5 V6 V7
COSC = 560PF 0s 0s 0s
0 10ns 10ns 10ns
VD C1 VM = 24 0V 0V 0V
5Vdc 10uF
0 0 RNFA = 45mV 5V 5V 5V
V_REFB RNFB = 45mV
DC = 1.25
1uF 0 0 0
0 0 Cv ref B
0 0
V_REFA
DC = 1.25
Cv ref a
1uF
0 0
8

9. Charge Pump Rise Time
Circuit Simulation Result
40V
Ccp 1 voltage
35V
30V
25V
20V
15V
10V
5V
0V
0s 0.1ms 0.2ms 0.3ms 0.4ms 0.5ms 0.6ms 0.7ms 0.8ms 0.9ms
V(Ccp_A) V(STANDBY)
Time
Evaluation circuit
STANDBY
RSA
Rosc 3.6k 7.5ohm
L1
U1 2 1
CR TORQUE
Cosc 560pF VDD OUT_B1 1.562mH
2
VREF_A ENABLE_B IC = 0A
VREF_B ENABLE_A
0 RS_B OUT_B IC = -0.5A
0.5 RRSB 1.562mH
0.5 RRSA FIN L2
RS_A OUT_A 0 1
VM PHASE_B
CCP_C PHASE_A RSB 7.5ohm
CCP_B OUT_A1
CCP_A STANDBY
V
TB62206FG
Cccp_2 Cccp_1 CCP1 = 0.22UF
VM 0.022uF 0.22uF CCP2 = 0.022UF
24Vdc CVM
100uF ROSC = 3.6K V8 V6 V7
COSC = 560PF V 0s 0s
0 10ns 10ns
VD C1 VM = 24 T1 = 0s 0V 0V
5Vdc 10uF
0 0 RNFA = 45mV T2 = 100us 5V 5V
V_REFB RNFB = 45mV V1 = 0V
DC = 1.25 V2 = 0V
V3 = 5V
1uF 0 T3 = 100.1us 0 0
0 0 Cv ref B
0 0
V_REFA
DC = 1.25
Cv ref a
1uF
0 0
Simulation Result
tONG (Simulation)=99.242us
9

10. Reference
10

11. Half Step Simulation
Circuit Simulation Result
15V
1 2
5V
10V
0V
5V
-5V
0V
>>
-10V
1 V(U1:PHASE_A) 2 V(U1:PHASE_B)
15V
1 2
5V
10V
0V
5V
-5V
0V
>>
-10V
1 V(U1:ENABLE_A) 2 V(U1:ENABLE_B)
0.75A 2.00A
1 2
0A
1.00A
-1.00A
0A
SEL>>
-2.00A -0.75A
1 I(U1:OUT_A1) 2 I(U1:OUT_B1)
Time
11

12. Evaluation circuit
RSA
Rosc 3.6k 9.8ohm
L1
U1 2 1
CR TORQUE
Cosc 560pF VDD OUT_B1 8.45mH
2
VREF_A ENABLE_B IC = -0A
VREF_B ENABLE_A
V IC = -0.5A
0 RS_B OUT_B
V
0.5 RRSB 8.45mH
0.5 RRSA FIN L2
RS_A OUT_A 0 1
VM PHASE_B
CCP_C PHASE_A RSB 9.8ohm
V
CCP_B OUT_A1
V
CCP_A STANDBY
V5
TB62206FG
0s
Cccp_2 Cccp_1 CCP1 = 0.22UF 10ns
VM1 0.022uF 0.22uF CCP2 = 0.022UF 0V
24Vdc CVM1 5V V_ENABLE_A V_ENABLE_B V_PHASE_A V_PHASE_B1
100uF ROSC = 3.6K V1 = 0 V1 = 5V V1 = 0 V1 = 0V
COSC = 560PF 0 V2 = 5V V2 = 0 V2 = 5V V2 = 5
0 TD = 0 TD = {tphase/8} TD = 0 TD = {tphase/4}
VD C1 VM = 24 TR = {trphase} TR = {trphase} TR = {trphase} TR = {trphase}
5Vdc 10uF
0 0 RNFA = 10.7mV TF = {tf phase} TF = {tf phase} TF = {tf phase} TF = {tf phase}
V_REFB RNFB = 10.7mV PW = {3*pwphase/4} PW = {1*pwphase/4} PW = {pwphase} PW = {pwphase}
DC = 1.25 PER = {tphase/2} PER = {tphase/2} PER = {tphase} PER = {tphase}
0
1uF 0 0 0
0 0 Cv ref B
PARAMETERS:
0 0 f phase = 250Hz
V_REFA
DC = 1.25 tphase = {1/f phase}
tdphase = {trphase+pwphase/2}
Cv ref a pwphase = {-2*trphase+tphase/2}
1uF
trphase = 100n
tf phase = {trphase}
0 0
Reference
12