NEC UPC7908AHF, UPC7905AHF, UPC7924AHF, UPC7918AHF, UPC7915AHF Datasheet
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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC7900A Series
THREE TERMINAL NEGATIVE VOLTAGE REGULATOR
DESCRIPTION
µ
PC7900A series are monolithic three terminal negative regulators which employ internally current limiting, thermal
shut down, output transistor safe operating area protection make them essentially indestructible.
They are intended as fixed voltage regulators in a wide range of application including local on card regulation for
elimination of distribution problems associated wide single point regulation.
FEATURES
• Wide operation temperature range.
TA: –30 ˚C to +85 ˚C
• Good load regulation.
7 mV TYP. (250 mA ≤ I
• Low noise.
O ≤ 750 mA):
µ
PC7905AHF
ORDERING INFORMATION
Part Number Output Voltage Package
µ
PC7905AHF –5 V MP-45G (ISOLATED TO-220)
µ
PC7908AHF –8 V
µ
PC7912AHF –12 V
µ
PC7915AHF –15 V
µ
PC7918AHF –18 V
µ
PC7924AHF –24 V
MP-45G (ISOLATED TO-220)
MP-45G (ISOLATED TO-220)
MP-45G (ISOLATED TO-220)
MP-45G (ISOLATED TO-220)
MP-45G (ISOLATED TO-220)
The information in this document is subject to change without notice.
Document No. G10640EJ3V0DS00 (3rd edition)
(Previous No. IC-3486)
Date Published March 1997 N
Printed in Japan
©
1994
EQUIVALENT CIRCUIT
µ
PC7900A Series
R4 R15
Q12
R5
D1
D4
D5
R6
R7
Q14
R8
Q8
Q5
Q13
R1 R2
Q1
CONNECTION DIAGRAM
Q7
R10
Q2
R3
C1
R9 R21 R22
Q9
R16
Q4
Q3
R18
Q11
Q10
R20
R19
Marking
Q17
Q6
R23
Q27
Q22
Q29
Q20
R24
Q15
D6
R30
C4 R32
R31
Q21
Q18
C3
Q28
Q23
Q19
R27
Q16
R28
R29
Q24
D2
R13
Q25
R17
R14
R12
R25
R26
OUTPUT
Q26
R11
INPUT
TYPICAL CONNECTION
CIN : More than 2.2 µF
OUT : More than 0.33
C
D1 : Needed for VIN > VO
D2 : Needed for VO > GND
2
GND INPUT OUTPUT
D
1
INPUT
IN
C
µ
F
PC7900A
µ
D
2
OUT
C
OUTPUT
µ
PC7900A Series
ABSOLUTE MAXIMUM REATINGS (TA = 25 ˚C)
Parameter Symbol Rating Unit
Input Voltage VIN –35/–40
Internal Power Dissipation PT 15
Operating Ambient Temperature Range TA –30 to +85 ˚C
Operating Junction Temperature Range TJ –30 to +150 ˚C
Storage Temperature Range Tstg –55 to +150 ˚C
Thermal Resistance (junction to case) Rth(J-C) 5.0 ˚C/W
Thermal Resistance (junction to ambient) Rth(J-A) 65 ˚C/W
Note 1
Note 2
Note 1.µPC7905A, 08A, 12A, 15A, 18A: –35 V, µPC7924A: –40 V
2. Internally limited
RECOMMENDED OPERATING CONDITIONS
Parameter Symbol Part Number MIN. TYP. MAX. Unit
µ
Input Voltage VIN
Output Current IO All 0.005 1 A
Operating Ambient TA All –30 +85 ˚C
Temperature
Operating Junction TJ All –30 +125 ˚C
Temperature Range
PC7905AHF –7 –10 –25 V
µ
PC7908AHF –10.5 –14 –25
µ
PC7912AHF –14.5 –19 –30
µ
PC7915AHF –17.5 –23 –30
µ
PC7918AHF –21 –27 –33
µ
PC7924AHF –27 –33 –38
V
W
3
µ
PC7900A Series
ELECTRICAL CHARACTERISTICS (TA = 25 ˚C)
µ
PC7905A
IN = –10 V, Io = 500 mA, 0 ˚C ≤ TJ ≤ +125 ˚C)
(V
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Output Voltage VO TJ = 25 ˚C –4.8 –5.0 –5.2 V
–7 V ≤ VIN ≤ –20 V, 5 mA ≤ IO ≤ 1 A, –4.75 –5.25
PT ≤ 15 W
–30 ˚C ≤ TJ ≤ +125 ˚C –4.75 –5.25
Line Regulation REGIN TJ = 25 ˚C, –7 V ≤ VIN ≤ –25 V 25 100 mV
TJ = 25 ˚C, –8 V ≤ VIN ≤ –12 V 3 50
Load Regulation REGL TJ = 25 ˚C, 5 mA ≤ IO ≤ 1.5 A 30 100 mV
TJ = 25 ˚C, 250 mA ≤ IO ≤ 750 mA 7 50
Quiescent Current IBIAS TJ = 25 ˚C 3.6 6.0 mA
Quiescent Current Change ∆IBIAS –7 V ≤ VIN ≤ –25 V 1.3 mA
5 mA ≤ IO ≤ 1 A 0.5
Output Noize Voltage Vn TJ = 25 ˚C, 10 Hz ≤ f ≤ 100 kHz 77
Ripple Rejection R•R TJ = 25 ˚C, f = 120 Hz, –8 V ≤ VIN ≤ –18 V, 56 63 dB
IO = 500 mA
Dropout Voltage VDIF TJ = 25 ˚C, IO = 1A 1.2 V
Peak Output Current IOpeak TJ = 25 ˚C 1.6 2.2 2.8 A
Temperature Coefficient |∆VO/∆T| IO = 5 mA 0.36 mV/˚C
of Output Voltage
µ
Vr.m.s
µ
PC7908A
(VIN = –14 V, IO = 500 mA, 0 ˚C ≤ TJ ≤ +125 ˚C)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Output Voltage VO TJ = 25 ˚C –7.7 –8.0 –8.3 V
–10.5 V ≤ VIN ≤ –23 V, 5 mA ≤ IO ≤ 1 A, –7.6 –8.4
PT ≤ 15 W
–30 ˚C ≤ TJ ≤ +125 ˚C –7.6 –8.4
Line Regulation REGIN TJ = 25 ˚C, –10.5 V ≤ VIN ≤ –25 V 33 150 mV
TJ = 25 ˚C, –11 V ≤ VIN ≤ –17 V 14 75
Load Regulation REGL TJ = 25 ˚C, 5 mA ≤ IO ≤ 1.5 A 40 160 mV
TJ = 25 ˚C, 250 mA ≤ IO ≤ 750 mA 14 80
Quiescent Current IBIAS TJ = 25 ˚C 3.9 6.0 mA
Quiescent Current Change ∆IBIAS –10.5 V ≤ VIN ≤ –25 V 1.0 mA
5 mA ≤ IO ≤ 1 A 0.5
Output Noize Voltage Vn TJ = 25 ˚C, 10 Hz ≤ f ≤ 100 kHz 130
Ripple Rejection R•R TJ = 25 ˚C, –11.5 V ≤ VIN ≤ –21.5 V, 52 58 dB
f = 120 Hz, IO = 500 mA
Dropout Voltage VDIF TJ = 25 ˚C, IO = 1 A 1.2 V
Peak Output Current IOpeak TJ = 25 ˚C 1.6 2.2 2.8 A
Temperature Coefficient |∆VO/∆T| IO = 5 mA 0.32 mV/˚C
of Output Voltage
µ
Vr.m.s
4
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