CXA2534Q
Item
Symbol
VMFT (on)
VMFT (off)
Vref (on)
Vref (off)
Min.
—
Typ.
—
Max.
0.8
—
Unit
V
Condition
FOCUS IN=1.8 V
Focus/Track mute on
Focus/Track mute off
Vref on voltage
2
—
V
FOCUS IN=1.8 V
SP IN=1.8 V
1.2
—
—
—
V
Vref off voltage
—
0.8
V
SP IN=1.8 V
3. PWM driver for PVCC
PSW output current
PVCC shift voltage
PVCC leakage current
PWM transconductance
4. DC to DC converter
4.1 Error amplifier
VCC1 threshold voltage
Hi error output voltage
Lo error output voltage
IPSW
10
0.2
—
13
0.3
0
17
0.4
3
mA
V
SLED IN=2.1 V
VSHIF
CC–SLED+
SLED IN=1.8 V, PV
IPVCC (leakage)
GPWM
µA
PVCC=9 V, VCC1=VCC2=Batt=0 V
1/67.5 1/50 1/32.5 1/kΩ SL IN=1.8 V, PVCC=1.2 to 1.4 V
VCC1TH
VEOH
3.05
1.5
—
3.2
1.65
—
3.37
—
V
V
V
EI=0.7 V, Io=–100 µA
EI=1.36 V, Io=100 µA
VEOL
0.2
4.2 Short circuit and Over voltage protection
SPRT voltage (normal)
SPRT output current (EO=H)
SPRT output current (OFF=L)
SPRT output current
(Over-voltage)
VSPR
ISPR1
ISPR2
—
6
0.05
10
0.1
16
32
V
EI=1.36 V
EI=0.7 V, VSPR=0 V
EI=1.36 V, OFF=0 V, VSPR=0 V
µA
µA
12
20
ISPR3
12
20
32
EI=1.36 V, Batt=9.5 V, VSPR=0 V
µA
SPRT impedance
RSPR
154
1.1
8
220
1.23
8.4
297
1.36
9
kΩ
V
SPRT threshold voltage
VSPR (Th)
EI=0.7 V, TC=0 V
BSEN Voltage
Over voltage protect threshold VBSEN (Th)
4.3 Sawtooth waveform
V
SW high output voltage
VSWH (start)
Batt=TC=1.5 V, VCC1=VCC2=0 V,
Io=–2 mA, START=LO
TC=0 V, Io=–10 mA, EI=0.7 V
SPRT=0 V
0.78
0.98
1.13
V
(Starting)
SW high output voltage
VSWH (nor)
1
1.5
0.1
85
—
0.4
115
V
V
(Normal)
SW low output voltage
VSWL (nor)
fSW1
—
55
TC=2 V, Io=10 mA
TC=420 pF, VCC1=VCC2=0 V,
START=LO
SW start freq
kHz
SW free running freq
SW synchronized freq
Start freq duty cycle
Free freq duty cycle
Synchronized freq duty cycle
4.4 Soft start
fSW2
60
—
45
70
65
70
88.2
55
82
—
65
90
85
kHz
kHz
%
TC=420 pF, CLK=0 V
fSW3
TC=420 pF, CLK=88.2 kHz
TC=420 pF, VCC1=VCC2=0 V
TC=420 pF, EI=0.7 V, CLK=0 V
TC=420 pF, EI=0.7 V
DSW1
DSW2
DSW3
80
%
75
%
DEAD pin impedance
DEAD pin voltage
RDEAD
VDEAD
55
80
105
kΩ
0.72
0.82
0.92
V
—13—
SONY [ SONY CORPORATION ]
