L5950 STMicroelectronics, L5950 Datasheet - Page 6

• Manufacturer Part Number: L5950
• Description: IC VREG MULTI CAR MULTIWATT15
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of L5950

• Applications: Converter, Car Audio System
• Voltage - Input: 7 ~ 26 V
• Number Of Outputs: 5
• Voltage - Output: 5V, 8.5V, 10V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: Multiwatt-15 (Vertical, Bent and Staggered Leads)
• Polarity: Positive
• Output Type: Selectable
• Output Voltage: 5 V, 8 V, 8.5 V, 10 V
• Output Current: 3 A
• Line Regulation: 55 mV
• Load Regulation: 55 mV
• Dropout Voltage (max): 1.5 V
• Input Voltage Max: 30 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Voltage Regulation Accuracy: 2.5 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L5950
Figure 2. Typical Application Circuit.
WRITE MODE:
S = START condition - SDA goes from high to low while SCL is high
A = Acknowledge - the device being written to, pulls down on data line (SDA) during the acknowledge
P = STOP condition - SDA goes from low to high while SCL is high.
CHIP ADDRESS BYTE:
DATA BYTE:
Default mode is 0000 0000 which corresponds to all outputs being off, low power mode.
Bit 5 Controls the output voltage of REG4. A ’0’ corresponds to 8V and a ’1’ corresponds to 10V.
6/8
(*) ESR of output capacitors should be between 0.1
S
0.1 F
FBATT
REG1
clock pulse.
EN
MSB
A7
b7
0
1000 F
CHIP ADDRESS
A6
b6
X
0
VREF
ENABLE
VREF
GND
R4 10V
SDA
BAT
SCL
A5
b5
0
CHIP ADDRESS
LSB
0
and 5.0 .
REG4
A
A4
b4
1
DATA BYTE
MSB
REG1
REG2
REG3
REG4
REG5
HSD1
HSD2
HSD3
REG5
A3
b3
0
REG5
10 F
C14
DATA BYTE
D99AU1010A
HSD1
HSD2
HSD3
HSD1
REG4
10 F
C12
A2
b2
0
REG3
10 F
C10
LSB
HSD2
A1
b1
0
A
REG2
10 F
C8
READ/WRITE
..
HSD3
A0
..
b0
0
REG1
10 F
C6
P