Sanyo STK6217 Specifications
Ordering number : EN 4873
N2894TH (OT) No. 4873-1/12
Overview
The STK6217 is a hybrid IC that combines in a single
package a unidirectional DC motor driver, a PLL
constant-speed controller (the LC7991) and associated
peripheral components, including a separately excited
oscillator, a comparator, and an FG amplifier. The motor
controller uses a PLL circuit for precise motor control.
The wide range of the STK6217’s FG lock frequency
allows it to handle a wide range of applications. Since the
motor driver block uses MOSFET devices as power
elements, it features high output currents (rush current)
and low loss.
Applications
• Plain paper copier DC motor drivers
• FAX paper transport motor drivers
• Other DC motor applications
Features
<Motor Controller Block>
• High FG frequency upper limit (locking range: 200 to
2500 Hz)
• Built-in FG divider (FG lock upper limit with divider in
use: 5000 Hz)
• Speed lock indicator output directly drives an external
LED.
• TTL level compatible ROT input
<Motor Driver Block>
• MOSFET power elements provide high output currents
(rush current).
• Low-loss PWM speed controller (built-in externally
excited oscillator: 25 kHz)
• Wide power supply voltage range (V
DSS
= 60 V)
• Built-in motor start-up overcurrent limiter function
Package Dimensions
unit: mm
4138
STK6217
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Unidirectional DC Motor Driver with Constant-Speed
Digital Servo Controller (output current: 8 A)
Thick Film Hybrid IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage 1 V
CC
1 max No signal 52 V
Maximum supply voltage 2 V
CC
2 max No signal 7 V
Maximum motor rush current I
O
peak max Duty 1%, period ≤ 100 ms 18 A
Maximum input voltage V
IH
max 7V
Storage temperature range Tstg –40 to +125 °C
Junction temperature Tj max 150 °C
Operating substrate temperature Tc max 105 °C
[STK6217]
Allowable Operating Ranges at Ta = 25°C
Operating Characteristics at Ta = 25°C, V
CC
1 = 24 V, VCC2 = 5.0 V
Pin Functions
No. 4873-2/12
STK6217
Ratings
Parameter Symbol Conditions
min typ max
Unit
V
CC
2 current dissipation I
CC
When the ROT input is used 10 15 mA
Output FET saturation voltage V
SAT
RL= 3 Ω 0.95 1.3 V
Built-in oscillator frequency f
O
21 25 31 kHz
OSC output amplitude V
OP-P
1.9 2.3 2.7 Vp-p
OSC output effective amplitude Vorms Pin 7 output voltage 0.54 0.66 0.80 Vrms
Common mode input voltage range V
ICM
Integrating amplifier and FG amplifier
0 V
CC
2 – 1.5 V
input voltage
FG amplifier feedback resistance R
f
95 100 105 kΩ
High input level voltage V
IH
DIV1 to DIV3, PR1, PR2 and ROT
0.7 V
CC
2 VCC2 V
inputs
Low input level voltage V
IL
0 0.3 VCC2 V
High input level current I
IH
DIV1 to DIV3, PR1 and PR2 inputs 1 µA
Low input level current I
IL
–1 µA
High output level current I
OH
Lock input VOH= VCC2 – 0.4 V –2 mA
Low output level current I
OL
Lock input VOL= 0.4 V 2 mA
Input frequency range
f
XI
XI input 0.1 10.5 MHz
f
FG
FGI input 50 kHz
FG lock frequency
f
FLOCK
FG input divider off 200 2500 Hz
f
FLOCK
FG input divider on 400 5000 Hz
Output cut voltage Vocut Pin 5 input voltage 0 25 mV
Pin No. Symbol Function
1
OUT Motor output
2
3
Vrs Current detection resistor connection
4
5 Vref4 Motor start-up current control reference voltage
6 V
CC
2 Power supply voltage input (+5 V)
7 Vref1 H/IC built-in oscillator bias voltage setting
8 Vref2 Integrating amplifier reference voltage setting
9 Vref3 FG input reference voltage setting
10 FG FG input
11 R
f
Integrating amplifier output
12 Mix in Integrating amplifier input
13 Mix out PO and FO sum output (PO and FO each have a 100 kΩ output resistance.)
14 XI Crystal oscillator connection (input)
15 XO Crystal oscillator connection (output)
16 DIV1
17 DIV2 Variable divider setting
18 DIV3
19 PR1
Phase comparison range select
20 PR2
21 ROT Motor rotate/stop input; H: stop, L: rotate
22 Lock Lock output; Outputs a low level when locked
23 SG Ground
Parameter Symbol Conditions Ratings Unit
Operating supply voltage 1 V
CC
1 Input active 10 to 42 V
Operating supply voltage 2 V
CC
2 Input active 5 ± 5% V
Motor output current I
O
DC (Tc = 25°C) 8 A
FET withstand voltage V
DSS
60 min V
Input voltage V
IH
VCC2 V
I/O Formats
Pin No. Format
No. 4873-3/12
STK6217
16, 17, 18, 19
14, 15
21
22
13
Equivalent Circuit
Sample Application Circuit
No. 4873-4/12
STK6217
The circuit shown above locks at an FG frequency of 2000 Hz.
Reference frequency: 8.2 MHz
Variable divider: 1/2
FG divider: Off
Unit (resistance: Ω, capacitance: F)
Unit (resistance: Ω, capacitance: F)
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