l4952 STMicroelectronics, l4952 Datasheet

no-image

l4952

Manufacturer Part Number
l4952
Description
Voltage Regulator For Car Radio Applications
Manufacturer
STMicroelectronics
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L4952
Manufacturer:
ST
0
Part Number:
l49525PD
Manufacturer:
ST
0
Part Number:
l4952D
Manufacturer:
ST
0
Part Number:
l4952D013TR
Quantity:
672
Part Number:
l4952D013TR
Manufacturer:
ST
0
Part Number:
l4952PD
Manufacturer:
ST
0
BLOCK DIAGRAM
June 2000
OPERATION SUPPLY VOLTAGE 9.5 TO 28V
PEAK SUPPLY OVERVOLTAGE PULSE UP
TO 52V (VS. GND)
FIXED OUTPUT VOLTAGE OF 8.6
AND OUTPUT CURRENT UP TO 150mA
VERY LOW DROP OUTPUT STAGE WITH
LOW OUTPUT VOLTAGE DIAGNOSTIC
OUTPUT SHORT CIRCUIT AND THERMAL
OVERLOAD PROTECTION
VERY LOW STANDBY CURRENT (DEVICE
DISABLED)
TWO
SWITCHES WITH LOW DROPOUT FOR
AM/FM SWITCHING
DRIVER CIRCUIT FOR EXTERNAL HIGH
SIDE SWITCH WITH DROP MONITORING
ENABLE INPUT TO SWITCH ON THE DE-
VICE
ADDITIONAL 10V VERY LOW DROP REGU-
LATOR TO SUPPLY THE VARICAP
VOLTAGE REGULATOR FOR CAR RADIO APPLICATIONS
INTERNAL
®
OUTPUT
VOLTAGE
0.2V
DESCRIPTION
The L4952 is a monolithic voltage regulator in an
advanced BCD60II process with high efficient p-
channel transistor. This device is optimized for
Car Radio applications to obtain optimum per-
formance and supply system integration with high
flexibility and minimum peripheral components.
ORDERING NUMBER: L4952D
SO20 (12+4+4)
L4952
1/8

Related parts for l4952

l4952 Summary of contents

Page 1

... June 2000 0.2V ORDERING NUMBER: L4952D VOLTAGE DESCRIPTION The L4952 is a monolithic voltage regulator in an advanced BCD60II process with high efficient p- channel transistor. This device is optimized for Car Radio applications to obtain optimum per- formance and supply system integration with high flexibility and minimum peripheral components. ...

Page 2

... L4952 ABSOLUTE MAXIMUM RATINGS Symbol V DC supply voltage s V Transient operating supply voltage for t = 400ms st V Output voltages o1,2,3,4 V Input voltage Input voltage for EN2, EN3, HSON IND V -V Max Voltage Difference between V s IND EN3, HSON V Diagnostic output DIAG ...

Page 3

... DPHS V Drop detection threshold DPHS FUNCTIONAL DESCRIPTION The L4952 is a monolithic voltage regulator with an output voltage of typically 8.6V and a maxi- mum output current of 150mA. It ’s a device for audio applications in carradios. The device contain a precision Bandgap refer- ence, a output amplifier with overcurrent protec- tion, two voltage switches, a driver for an external = 14V ...

Page 4

... L4952 Figure 1: Application Circuit Diagram Figure 2. Figure 3. 4/8 ...

Page 5

... High side switch. Fig. 3 shows the switch on/off phase of the external High side switch. At the time t0 the microcontroller switches on (curve 1 = output signal of the microcontroller). The signal on the HSON pin of the L4952 is shown and En on curve the external Power pnp switched on ...

Page 6

... L4952 Figure 7: OUT3 propagation delay (Load = 100 ) Figure ESR = 4.7 Load current 0mA and 117mA) Figure 11: OUT4 supply transient response ( ESR = 4.7 , Load = 3mA) Note 4 Typical charcteristics shown by the Figures are typical parameters. Depending on produc- 6/8 Figure 8: OUT1 supply transient rejection ( ESR = 4 ...

Page 7

... D 12.6 13 0.496 E 7.4 7.6 0.291 e 1. 10.65 0.394 h 0.25 0.75 0.010 L 0.4 1.27 0.016 K 0˚ (min.)8˚ (max inch MECHANICAL DATA TYP. MAX. 0.104 0.012 0.020 0.013 0.512 0.299 0.050 0.419 0.030 0.050 L4952 OUTLINE AND SO20 h x 45˚ SO20MEC 7/8 ...

Page 8

... L4952 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice ...

Related keywords