Rev.6.1
_10
HIGH WITHSTAND-VOLTAGE REGURATOR
WITH RESET FUNCTION
S-87x Series
The S-87x Series is a low-power high withstand-
voltage regulators with a reset function, which
integrates high-precision voltage detection and voltage
regulation circuits on a single chip.
The S-87x Series has lineups for lithium-ion battery
packs.
Features
•
Accuracy of output voltage:
•
•
•
•
•
•
•
•
±2.4
%
2.6 V to 5.8 V (0.1 V step)
Accuracy of detection voltage:
±2.4
% (For the F type, the release voltage is
±1.1
%)
2.1 V to 11.3 V (0.1 V step)
Low I/O voltage difference:
0.15 V typ. (at I
OUT
=30
mA, V
OUT
=5.0
V)
0.45 V typ. (at I
OUT
=30
mA, V
OUT
=3.0
V)
Low current consumption:
At Operation mode: 8
µA
max.
At Shutdown mode: 3.5
µA
max. (Available for the C/E/G type)
Wide operating voltage range:
24 V max.
Wide operating temperature range:
−40°C
to
+85°C
Built-in delay circuit or shutdown circuit
Built-in short-circuit protection circuit
Small package:
SOT-89-5
Applications
•
Constant voltage power supply or reset circuit of battery-powered equipment, VTR, camera,
communications equipment and others.
•
Lithium-ion secondary battery pack
Package
•
SOT-89-5 (Package drawing code: UP005-A)
Seiko Instruments Inc
1
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series
Rev.6.1
_10
Block Diagrams
1. A/F type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Voltage detection
circuit
Delay circuit
VOR
VSS
CD
Figure 1
2. B type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Voltage detection
circuit
Delay circuit
VOR
VSS
CD
Figure 2
2
Seiko Instruments Inc.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.6.1
_10
S-87x Series
3. C type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Voltage detection
circuit
VOR
VSS
Shutdown circuit
VPF
Figure 3
4. E type
Short-circuit
protection circuit
VIN
Voltage
regulator
Power on/off
VOUT
SENSE
Voltage detection
circuit
VSS
VOR
Figure 4
Seiko Instruments Inc.
3
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
S-87x Series
Rev.6.1
_10
5. G type
Short-circuit
protection circuit
VIN
Voltage
regulator
VOUT
Voltage detection
circuit
VSS
VOR
Shutdown circuit
VPF
Figure 5
4
Seiko Instruments Inc.
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.6.1
_10
S-87x Series
Product Code Structure
1. Function list
Table 1
Type name
A type
B type
C type
E type
F type
G type
Voltage detector
(VD)
Detects V
IN
Detects V
OUT
Detects V
IN
Detects V
SENSE
Detects V
IN
Detects V
OUT
Detection voltage
(−V
DET
) accuracy
[%]
±2.4
±2.4
±2.4
±2.4
±2.4
Release voltage
(+V
DET
) accuracy
[%]
±1.1
Built-in
delay
circuit
Yes
Yes
No
No
Yes
No
Shutdown
function
VR
VD
No
No
No
No
Yes
No
Yes
No
No
No
Yes
No
2. Product name selection guide
S-87 xx xx x UP - xxx - T2
IC direction in the tape sepecifications
Product name (Abbreviation)
*2
*1
Package name (Abbreviation)
UP: SOT-89-5
Product type
A: Built-in delay circuit, V
IN
detection (−V
DET
detection)
B: Built-in delay circuit, V
OUT
detection
C: Built-in shudown circuit for regulator, V
IN
detection
E: Built-in shudown circuit for regulator, V
SENSE
detection
F: Built-in delay circuit, V
IN
detection (+V
DET
detection)
G: Built-in shudown circuit for regulator, V
OUT
detection
Detection voltage of voltage detector
21 to 94, A0, B0, B3 (Ex. When the detection voltage of voltage
*3
detector is 2.1 V, it is expressed as 21. )
Output voltage of voltage regulator
26 to 56 (Ex. When the output voltage of voltage regulator is
2.6 V, it is expressed as 26.)
*1.
Refer to the taping specifications at the end of this document.
*2.
Refer to the
Table 2
to
Table 3
in the “3.
Product name list”.
*3.
A0 for 10.0 V, B0 for 11.0 V, B3 for 11.3 V.
Seiko Instruments Inc.
5
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