参数资料
型号: L7250
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: VOICE COIL MOTOR CONTROLLER, PQFP64
封装: TQFP-64
文件页数: 46/46页
文件大小: 478K
代理商: L7250
9/46
L7250
ADC AUXILIARY INPUT
AUX_ran
ge0
Input range 0
Reg06H ‘b3’ = 0
Referred to Vref25
±1
V
AUX_ran
ge1
Input range 1
Reg06H ‘b3’ = 1
Referred to Vref25
±2.25
V
AUX_Ibias Input bias
-100
100
A
VCM VOLTAGE AMPLIFIER
Volt_gain
Voltage gain
0.165
V/V
Volt_off
Input offset
-15
+15
mV
Volt
_cmrr
Common mode rejection ratio
f < 10 KHz, tested at DC only
CMRR=AV DIFF/AV CM
46
dB
Volt
_svrr
supply voltage rejection ratio
f < 10 KHz, tested at DC only
60
dB
BEMF processor amplifier
CalCoar
seIn
Calcoarse voltage input range
0.5
2
V
Gain1
First stage gain
Vcontrol = 1.25 V
1.91
V/V
Gain2
Second stage gain
16
V/V
Offset
Residual input offset after
calibration
Vcontrol = 1.25V
(Measured between VCMN and
SNS_P pins)
-3
+3
mV
Rout
BEMF amp output resistance (pin
31)
500
ohm
ULOAD @ POR
Timer1_V
Timer1 Charging Voltage
2.5
V
Timer1_I Timer1 Discharging Current
2
A
Timer1_T
Timer1 Low threshold
0.2
V
VOLTAGE REGULATORS
1.8 AND 3.3 LINEAR REGULATOR
V18 feed 1.8V feedback Voltage
-5%
1.25
+5%
V
V33 OUT 3.3V Output Voltage
-5%
3.3
+5%
V
ELECTRICAL CHARACTERISTCS (continued)
POWER SUPPLY [VCC5 & VCV] VCC5 = 5V ±10%, VCV = 12V ±10%. Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
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