BD9634GU Datasheet, PDF (6/30 Pages) Rohm – Switching Regulator ICs

BD9634GU
Electrical Characteristics –continued
（Unless otherwise specified, VVBAT=VVBAT3,4,6,8=3.7[V], VOUT1 Input terminal =3.7[V], Ta=25[°C]）
Parameter
【CH3】
Error Amp
Reference Voltage
Symbol
Limit
Unit
MIN TYP MAX
VEREF3 0.390 0.400 0.410
V
Conditions
Soft-start Period 85%
tSS3
0.43 0.85 1.27 ms Soft-start Period 100% 1.0[ms]（TYP）
PMOS ON-Resistance
RONP3
-
0.45 0.70
Ω Power Supply 3.7[V]
NMOS ON-Resistance
【CH4】
Error Amp
Reference Voltage
Soft-start Period 85%
PMOS ON-Resistance
DOWN side
NMOS ON-Resistance
DOWN side
PMOS ON-Resistance
UP side
NMOS ON-Resistance
UP side
Maximum Duty
RONN3
-
0.30 0.55
Ω Power Supply 3.7[V]
VEREF4
tSS4
RONPD4
RONND4
RONPU4
RONNU4
DMAX4
0.390 0.400 0.410
1.25 2.50 3.75
-
0.45 0.70
-
0.30 0.55
-
0.45 0.70
-
0.30 0.55
65
80
95
V
ms
Soft-start Period 100%
2.94[ms]（TYP）
Ω Power Supply 3.7[V]
Ω Power Supply 3.7[V]
Ω Power Supply 3.7[V]
Ω Power Supply 3.7[V]
%
【CH5】
Error Amp
Reference Voltage
Soft-start Period 85%
VEREF5
tSS5
0.975
2.25
1.000
4.50
1.025
6.95
V
ms Soft-start Period 100% 5.3[ms]（TYP）
Maximum Duty
DMAX5 76.5 85.0 93.5
% SEL5=L
【CH6】
Error Amp
Reference Voltage 1
Error Amp
Reference Voltage 2
Soft-start Period 85%
Load Switch
ON-Resistance
Maximum Duty
VEREF6
VEREF6.1
tSS6
RONP6
DMAX6
0.386 0.400 0.414
0.386
2.55
-
87
0.400
5.10
0.40
-
0.414
7.65
0.65
-
V Constant voltage control side
V Constant current control side
ms Soft-start Period 100% 6.0[ms]（TYP）
Ω Power Supply 3.7[V]
%
【CH7】
Error Amp
Reference Voltage
Soft-start Period 85%
VEREF7
tSS7
0.983
3.40
1.000
6.80
1.017
10.20
V
ms Soft-start Period 100% 8.0[ms]（TYP）
PMOS ON-Resistance
RONP7
-
4.00 6.40
Ω Power Supply 3.7[V]
NMOS ON-Resistance
RONN7
-
0.70 1.12
Ω Power Supply 3.7[V]
Maximum Duty
DMAX7
87
-
-
%
【CH8】
Error Amp
Reference Voltage
Soft-start Period 1 85%
Soft-start Period 2 85%
Maximum Duty
VEREF8
tSS81
tSS82
DMAX8
0.978 1.000 1.022
2.55 5.10 7.65
3.40 6.80 10.20
87
-
-
V Refer to P.16 for Output Voltage accuracy
ms
Soft-start Period 100% 6.0[ms]（TYP）
CONT78=L
ms
Soft-start Period 100% 8.0[ms]（TYP）
CONT78=H
%
CH8 Reference Voltage
VREF8
2.44 2.50 2.56
V
【CH9】
Reference Voltage
Startup period 85%
VREF9 0.2425 0.250 0.2575 V
tSS9
127
255
383
μs Startup Period 100% 300[μs]（TYP）
PMOS ON-Resistance
RONP9
-
0.90 1.44
Ω Power Supply 3.7[V]
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
6/26
TSZ02201-0313AA400620-1-2
26.Apr.2016 Rev.001