RENESAS HA13173AH Service Manual

HA13173AH

Multiple Voltage Regulator for Car Audio

REJ03F0227-0100

Rev.1.00

Jan 16, 2007

Description

The HA13173AH is a multiple voltage regulator for car audio system. This IC has 5.0 V output for a microcontroller,

3.3 V output for a Digital Signal Processor, 8.0 V output for CD driver, 8.4 V output for audio control, 8.4 V output for
illuminations, and high side switch output for external output.

The HA13173AH also has FREG that is possible to control external PNP transistor. It is adjustable output voltage by
changing an external resistor.

Functions

• Standby current is 100 µA max.

• The Vdd output for microcontroller has backup function, by independent power supply line.

• Low saturation output (PNP output) used for audio output.

• Output current limit circuit to avoid device destruction caused by shorted output, etc.

• High surge input protector against VB and VBUP.

• Built in a thermal shutdown circuit to prevent against the thermal destruction.

• The package is PRSS0015DA-C (SP-15TGV).

Rev.1.00 Jan 16, 2007 page 1 of 9

HA13173AH

Pin Description

Pin
No. Pin Name Specification

1 GND Ground — — — —
2 FREG_B External transistor bias operation Available Available Off Off
3 FREG_F FREG feed back terminal Available Available Off Off
4 ILM OUT 8.4 V output for ILM/500 mA max Available Off Off Off
5 CTL4 FREG control terminal Available Available Not

6 CD OUT 8.0 V output for CD/1.3 A max Available Off Off Off
7 DSP OUT 3.3 V output for DSP/250 mA max Available Off Off Off
8 VB Battery — — — —
9 CTL3 ILM control terminal Available Not

10 AUDIO OUT 8.4 V output for AUDIO/500 mA max Available Off Off Off
11 CTL1 DSP, CD, AUDIO control terminal Available Not

12 EXT OUT High side output/600 mA max Available Off Off Off
13 CTL2 EXT control terminal Available Not

14 VDD OUT 5.0 V output for microcontroller On On On Off
15 VBUP Back up — — — —

Normal TSD ON VB = 24 V VB = 50 V

Protection

available

available

available

available

Not

available

Not

available

Not

available

Not

available

Not

available

Not

available

Not

available

Rev.1.00 Jan 16, 2007 page 2 of 9

HA13173AH

Equivalent Circuit

Pin 3 (FREG_F)

VB

5 kΩ

Pin 2 (FREG_B)

100 Ω

VB

71 kΩ

13 kΩ

VB

71 kΩ

13 kΩ

VBUP

37 kΩ

15 kΩ

Pin 4 (ILMOUT)

Pin 10 (AUDIOOUT)

Pin 14 (VDDOUT)

10 kΩ

VB

Pin 6 (CDOUT)

67 kΩ

13 kΩ

VB

Pin 7 (DSPOUT)

20 kΩ

13 kΩ

10kΩ90

Pin 5 (CTL4)
Pin 9 (CTL43)
Pin 13 (CTL2)

kΩ

100

kΩ

30
kΩ

Rev.1.00 Jan 16, 2007 page 3 of 9

Pin 11 (CTL1)

10kΩ90kΩ90

kΩ

kΩ

75

30
kΩ

30
kΩ