ST L5959 User Manual
L5959
Multifunction voltage regulator for car radio
Features
■Four outputs
–8.5V @ 200mA (V8P5)
–8/10V @ 1000mA selectable 10V or 8V (V810)
–3.3V @ 100mA permanent (VSTBY)
–3.3V @ 800mA (VREGSW)
■Two protected high side driver (HSD1, HSD2)
■Reset function
■Battery voltage (under/over) warning output
■Load dump protection
■Independent thermal shutdown on all regulators and HSDs
■Overcurrent limitation
■Storage CAP output (STCAP)
■Small CAP required by stability of regulators
■All pins ESD protected
Table 1. Device summary
Multiwatt15
Description
The L5959 contains a four voltage regulator and two protected HSDs. HSDs are protected against loss of ground and loss of battery.
The IC includes a monitoring circuit for detection.
The IC features a very low quiescent current in stand-by and independent thermal shutdown.
Order code |
Package |
Packing |
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L5959 |
Multiwatt15 |
Tube |
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August 2007 |
Rev 2 |
1/19 |
www.st.com
Contents |
L5959 |
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Contents
1 |
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5 |
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2 |
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6 |
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2.1 |
Pins connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
6 |
3 |
Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
7 |
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3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 |
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
13 |
5 |
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
17 |
6 |
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
18 |
2/19
L5959 |
List of tables |
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List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Enable logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 5. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 6. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3/19
List of figures |
L5959 |
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List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2. Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3. Timing diagram of regulators and HSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 4. STCAP and RST diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 5. VBATVW (over/under voltage warning) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 6. Independent thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 7. RST glitch rejection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 8. Enable on/off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 9. Multiwatt15 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 17
4/19
L5959 |
Block diagram |
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1 Block diagram
Figure 1. Block diagram
VBAT |
Two HSD |
HSD1 |
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HSD2 |
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V810 |
V810 |
STCAP |
VSTBY |
VSTBY |
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VREGSW |
VREGSW |
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V8P5 |
V8P5 |
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VBATVW |
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LOAD-DUMP |
RST |
EN0 |
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RESET |
EN1 |
ENABLE |
RSTDLY |
EN2 |
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Table 2. |
Enable logic |
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EN2 |
EN1 |
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EN0 |
VREGSW |
V8P5 |
HSD1 |
V810 |
V810 |
HSD2 |
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(8V) |
(10V) |
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0 |
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Off |
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Off |
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0 |
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1 |
On |
On |
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Off |
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1 |
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On |
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1 |
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On |
On |
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1 |
0 |
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On |
On |
On |
Off |
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Off |
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1 |
0 |
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1 |
On |
On |
On |
Off |
On |
Off |
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1 |
1 |
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0 |
On |
On |
On |
On |
Off |
Off |
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1 |
1 |
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1 |
On |
On |
On |
On |
Off |
On |
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5/19
Pins description |
L5959 |
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2 Pins description
2.1Pins connection
Figure 2. Pins connection (top view)
15 |
VBAT |
14 |
V810 |
13 |
V8P5 |
12 |
VREGSW |
11 |
STCAP |
10 |
VSTBY |
9 |
HSD1 |
8 |
GND |
7 |
VBATVW |
6 |
EN2 |
5 |
EN1 |
4 |
EN0 |
3 |
RSTDLY |
2 |
RST |
1 |
HSD2 |
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D06AU1637 |
6/19
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