BBK PV420S, Service Manual

Page: 43 / 299

MITSUMI
4ch Moter driver IC for Portable CD Player
Electrical Characteristics
(unless otherwise specified, Ta=25°C , BATT=2.4V, VSYS1=VSYS2=3.2V,Vref=1.6V,
CHGVcc=0V,fCLK=88.2kHz)
Item Symbol Measurement Conditions Min. Typ. Max. Unit
<Interface>
START Pin Bias Current I
START
START=0V
10 20 30
µA
13 16 19
CLK Pin Threshold Voltage"H" V
CLKTHH
2.0 V
CLK Pin Threshold Voltage"L" V
CLKTHL
0.8 V
CLK Pin Bias Current I
CLK
CLK=3.2V 10 µA
<Dead Time>
DEAD Pin Impedance R
DEAD
52 65 78 k
Ω
DEAD Pin Output Voltage V
DEAD
0.78 0.88 0.98 V
<Starter Circuit>
Starter Switching Voltage V
STNM
VSYS1=VSYS2=0V 3.2V, START=0V 2.3 2.5 2.7 V
Starter Switching Hysteresis Width V
SNHS
START=0V 130 200 300 mV
Discharge Release V
DIS
1.63 1.83 2.03 V
<Empty Detection>
EMP Detection Voltage 1 V
EMPT1
VSEL =0V 2.1 2.2 2.3 V
EMP Detection Voltage 2 V
EMPT2
ISEL =- 2µA 1.7 1.8 1.9 V
EMP Detection Hysteresis Voltage 1 V
EMHS1
VSEL =0V 25 50 100 mV
EMP Detection Hysteresis Voltage 2 V
EMHS2
ISEL =- 2µA 25 50 100 mV
EMP Pin Output Voltage V
EMP
Io=1mA, BSEN=1V 0.5 V
EMP Pin Output Leak Current I
EMPL
BSEN=2.4V 1.0 µA
BSEN Pin Input Resistance R
BSEN
VSEL =0V 17 23 27 k
Ω
BSEN Pin Leak Current I
BSENL
VSYS1=VSYS2=0V, BSEN=4.5V 1.0 µA
SEL Pin Detection Voltage V
SELTH
V
SELTH
=BATT-SEL, BSEN=2.0V 1.5 V
SEL Pin Detection Current I
SELT
-2 µA
<Reset Circuit>
VSYS1 RESET Threshold Voltage Ratio H
SRT
Comparison with error amplifier threshold voltage 85 90 95 %
RESET Detection Hysteresis Width V
RSTHS
25 50 100 mV
RESET Pin Output Voltage V
RST
Io=1mA, VSYS1=VSYS2=2.8V 0.5 V
RESET Pin PULL UP Resistance R
RST
72 90 108 k
Ω
AMUTE Pin Output Voltage 1 V
AMT1
Io=-1mA, VSYS1=VSYS2=2.8V BATT-0.4 BATT V
AMUTE Pin Output Voltage 2 V
AMT2
Io=-1mA, START=0V, VSYS1=VSYS2=0V BATT-0.4 BATT V
AMUTE Pin PULL DOWN Resistance R
AMT
77 95 113 k
Ω
<Op Amp>
Input Bias Current I
BIAS
OP+=1.6V 300 nA
Input Offset Voltage V
OIOP
-5.5 0 5.5 mV
High Level Output Voltage V
OHOP
R
L
=OPEN 2.8 V
Low level Output Voltage V
OLOP
R
L
=OPEN 0.2 V
Output Drive Current (Source) I
SOU
50
Ω
GND -6.5 -3.0 mA
Output Drive Current (Sink) I
SIN
50
Ω
VSYS1 0.4 0.7 mA
Open Loop Voltage Gain GVO V
IN
=-75dBV, f=1kHz 70 dB
Slew Rate SR 0.5 V/µs
<Battery Charging Circuit>
RCHG Pin Bias Voltage V
RCHG
CHGV
CC
=4.5V, RCHG=1.8k
Ω
0.71 0.81 0.91 V